# --------------------------------------------------------------------------- #
#                                                                             #
#    Module: tmux.conf                 By: sohorx <banlin.adrien@gmail.com>   #
#                                                                             #
#    Created: 2015/04/01 18:17:25      Updated: 2016/04/01 18:17:25           #
#                                                                             #
# --------------------------------------------------------------------------- #
# Note: {{{                                                                   #
#  minimalist tmux configuration which behave a bit like vi                   #
#                                                                         }}} #
# --------------------------------------------------------------------------- #

# Global options:                                                           {{{
# --------------
set -g bell-action none                        # make it Shut up!
set-option -g default-shell $SHELL             # set shell
set -g default-terminal "screen-256color"      # term colors
#set -ga terminal-overrides ",*256col*:Tc"     # term cap only
set -ga terminal-overrides '*:Ss=\E[%p1%d q:Se=\E[ q,*256col*:Tc' # cursor control
setw -g mode-keys vi                           # vi mode
set -s escape-time 1                           # Fix terminal name issues
set -g set-titles on                           # Turn on window titles
setw -g automatic-rename on                    # Automatically set window title
set -g mouse on                                # mouse cap
set-window-option -g clock-mode-colour brightwhite # set colour clock
set -g focus-events on                         # for vim (?)
set-option -g automatic-rename on              # auto rename session
set-option -g status-interval 5                # rename session interval
set -g status on                               # enable status bar at start

# https://github.com/3rd/image.nvim/?tab=readme-ov-file#tmux
set -gq allow-passthrough on                   # image.nvim requirements
set -g visual-activity off                     # image.nvim requirements

# ------------------------------------------------------------------------- }}}
# Change default strings:                                                   {{{
# ----------------------
# Set window title string
set -g set-titles-string '#S :: #W :: #F#P #{pane_current_command}'
#set-option -g automatic-rename-format "#{b:pane_current_path}"

# ------------------------------------------------------------------------- }}}
# Variables:                                                                {{{
# ---------

is_vim='echo "#{pane_current_command}" | grep -iqE "(^|\/)g?(view|n?vim?)(diff)?$"'
# is_vim Note: {{{
#   The pane's foreground command, as tmux sees it. The older variant read a
#   "@tmux_vim_<pane>" variable that a vim plugin had to set; nothing sets it
#   here, so C-h/j/k/l never reached vim.
# }}}

resurrect_root_dir="$XDG_CACHE_HOME/tmux/resurect"

# chunk of status bar variables and coloration
#sep_st='#[fg=brightwhite,bg=brightblue]'
#sep_c='#[fg=black]'
#
#sep_d='#[fg=brightwhite,bold]'
#sep_e='#[default,fg=brightblack]#[bg=brightblack]#[fg=brightwhite]'
#sep_f='#[fg=black]'
#
#sep_g='#[fg=blue,bold]'
#sep_h='#[default,fg=brightwhite]#[fg=blue,bg=brightwhite,bold]'
#sep_i='#[default,bg=brightwhite,fg=black]'
#
#sep_b='#[fg=brightyellow]#[default, bg=brightyellow, fg=black]'
#sep_a='#[fg=yellow]#[bg=yellow, fg=black]'
#
#sep_off="#[fg=brightred]#[bg=brightred, fg=brightwhite, bold] OFF"
#sep_on="#[fg=green]#[bg=green, fg=brightwhite, bold]  ON"
#
#brightwhite_fg="#[fg=brightwhite]"
##

sep_st='#[fg=brightwhite,bg=brightblue]'
sep_c='#[fg=black] '

sep_d='#[fg=brightwhite,bold] '
sep_e='#[default,fg=brightblack] #[bg=brightblack]#[fg=brightwhite]'
sep_f='#[fg=black]'

sep_g='#[fg=brightblue,bold] '
sep_h='#[default,fg=brightwhite] #[fg=black,bg=brightwhite,bold]'
sep_i='#[default,bg=brightwhite,fg=black]'

sep_b='#[fg=brightyellow] #[default, bg=brightyellow, fg=black]'
sep_a='#[fg=yellow] #[bg=yellow, fg=black]'

sep_off="#[fg=brightred] #[bg=brightred, fg=brightwhite, bold] OFF"
sep_on="#[fg=green]#[bg=green, fg=brightwhite, bold]  ON"

brightwhite_fg="#[fg=brightwhite]"

# ------------------------------------------------------------------------- }}}
# Key bindings:                                                             {{{
# ------------

# Unbindings
unbind [
unbind C-b                                      # (prefix)
unbind C-n                                      # (nav)
unbind l
unbind C-p
unbind v                                        # (selection)
unbind y                                        # (copy)
unbind p                                        # (pasting)
unbind %                                        # (sp)
unbind '"'                                      # (vs)
unbind-key -T copy-mode-vi MouseDragEnd1Pane # (mouse setting) {{{
#   stock binding = "release the drag: copy AND leave copy-mode", which loses
#   the selection on screen. Rebound below (clipboard section) as copy without
#   leaving, so a drag is enough and y stays available.
#   ref: https://github.com/tmux/tmux/issues/140
# }}}

set -g prefix C-a                               # bind screen like prefix
bind C-a send-prefix                            # C-a C-a = literal C-a (shell home)

# specific commands
bind-key C-o command-prompt "new-session -s %1 -c ~"
bind R source-file ~/.config/tmux/tmux.conf \; display-message "Config reloaded..."

# Resizing key bindings (same arrow layout as the moves below, with prefix)
bind-key -r C-u resize-pane -U 5
bind-key -r C-h resize-pane -L 5
bind-key -r C-j resize-pane -D 5
bind-key -r C-k resize-pane -R 5
bind-key -r C-n next-window \; set status on
bind-key -r C-p previous-window \; set status on

# Moving across panes (and vim), no prefix: ctrl + u/h/j/k laid out as arrows
# (u up, h left, j down, k right). These keys sit at the same place on AZERTY
# and QWERTY US, and need no option key. Each one still reaches vim when vim
# runs in the pane. C-l is free, so it clears the shell screen again.
# Shell cost: C-u (readline "clear the line") is taken.
bind -n C-u if-shell "$is_vim" "send-keys C-u" "select-pane -U"
bind -n C-h if-shell "$is_vim" "send-keys C-h" "select-pane -L"
bind -n C-j if-shell "$is_vim" "send-keys C-j" "select-pane -D"
bind -n C-k if-shell "$is_vim" "send-keys C-k" "select-pane -R"
# Copy-mode has its own key table, where stock tmux turns these keys into text
# navigation (C-h cursor-left, C-u halfpage-up, C-j copy). Arrows do that job;
# the four keys keep switching panes there too.
bind -T copy-mode-vi C-u select-pane -U
bind -T copy-mode-vi C-h select-pane -L
bind -T copy-mode-vi C-j select-pane -D
bind -T copy-mode-vi C-k select-pane -R

bind Escape copy-mode                              # bind vi-like 'normal' mode
bind -Tcopy-mode-vi 'v' send -X begin-selection    # bind vi-like visual mode
# Clipboard: pbcopy/pbpaste on macOS. Elsewhere tmux's own buffer, which tmux
# also hands to the terminal through OSC 52 (set-clipboard), so it reaches the
# local clipboard over ssh. xsel/xclip dropped: headless servers have no X.
# Releasing a mouse drag copies too (selection kept on screen, copy-mode stays).
# alt+c (in a selection) = y, alt+v (anywhere, no prefix) = prefix p: cmd-less
# keyboards. GNOME Terminal: keep "Enable mnemonics" off or alt+v opens View.
if-shell 'command -v pbcopy >/dev/null' \
    'bind -Tcopy-mode-vi y send -X copy-pipe-and-cancel pbcopy ; bind -Tcopy-mode-vi M-c send -X copy-pipe-and-cancel pbcopy ; bind -Tcopy-mode-vi MouseDragEnd1Pane send -X copy-pipe-no-clear pbcopy ; bind p run "pbpaste | tmux load-buffer - ; tmux paste-buffer" ; bind -n M-v run "pbpaste | tmux load-buffer - ; tmux paste-buffer"' \
    'bind -Tcopy-mode-vi y send -X copy-selection-and-cancel ; bind -Tcopy-mode-vi M-c send -X copy-selection-and-cancel ; bind -Tcopy-mode-vi MouseDragEnd1Pane send -X copy-selection-no-clear ; bind p paste-buffer ; bind -n M-v paste-buffer'
bind-key -Tcopy-mode-vi Escape send -X cancel                  # cancel v mode
bind-key -Tcopy-mode-vi ^v send -X rectangle-toggle            # cancel v mode

# Wheel: stock tmux scrolls 5 lines per tick, too fast on a trackpad (one flick =
# dozens of ticks). Halved to 2; applies to history scrolling (copy-mode) only.
bind -T copy-mode-vi WheelUpPane   select-pane \; send-keys -X -N 2 scroll-up
bind -T copy-mode-vi WheelDownPane select-pane \; send-keys -X -N 2 scroll-down
bind-key -T copy-mode-vi MouseDown1Pane select-pane -t = \; send-keys -X clear-selection
bind-key -T copy-mode-vi MouseUp1Pane   select-pane -t = \; send-keys -X cancel
bind -n MouseDrag1Pane if -Ft= '#{mouse_any_flag}' 'if -Ft= "#{pane_in_mode}" "copy-mode -eM" "send-keys -M"' 'copy-mode -eM'
# (note) {{{
# A plain click (MouseDown then MouseUp, no drag) leaves copy-mode: back to
#   the prompt, selection dropped. A drag sends MouseDrag/MouseDragEnd instead
#   of MouseUp, so it keeps the scroll position and selects as usual. A click
#   on another pane still switches to it.
# The `bind -n MouseDrag1Pane if -Ft= ...` changes the default binding of
#   MouseDrag1Pane, the only difference is that we use `copy-mode -eM` instead
#   of `copy-mode -M`, so that WheelDownPane can trigger copy-mode to exit when
#   copy-mode is entered by MouseDrag1Pane
# Inner quotes stay plain: `\"` is literal inside '...' since tmux 3.0, and the
#   mouse-app branch (claude, vim) then dies with "syntax error" on every drag.
# }}}

bind-key k "split-window -v -b -c '#{pane_current_path}'"
bind-key h "split-window -h -b -c '#{pane_current_path}'"
bind-key j "split-window -v -c '#{pane_current_path}'"
bind-key l "split-window -h -c '#{pane_current_path}'"
bind-key i "split-window -h -c '#{pane_current_path}'"   # i: side by side (vertical bar)
bind-key - "split-window -v -c '#{pane_current_path}'"   # -: stacked (horizontal bar)

bind q kill-window                         # Kill window
bind Q kill-session                        # Kill the session (not server)
bind C-c neww \; set status on             # enable status bar
bind c neww \; set status on               # disable status bar

# Enable disable bindings and change status bar with it {{{
bind -T root F10  set status off
bind -T root F9   set status on
bind -T root F12  \
         set prefix None \; \
         set key-table off \;\
         set focus-events off \; \
         set status-right '#{brightwhite_fg} #h #{sep_b} %a %d/%m/%Y #{sep_a} %H:%M #{sep_off} : #{continuum_status} ' \;\
         set status on\; \
         refresh-client -S\;

bind -T off F11 \
         set -u prefix \;\
         set -u key-table \;\
         set -u focus-events \;\
         set status-right '#{brightwhite_fg} #h #{sep_b} %a %d/%m/%Y #{sep_a} %H:%M #{sep_on} : #{continuum_status} ' \;\
         set status on\;\
         refresh-client -S\;
# }}}

# ------------------------------------------------------------------------- }}}
# Plugins:                                                                  {{{
# -------
# To make plugins works, the run tpm must be done by the main file.
#
# run '~/.config/tmux/plugins/tpm/tpm'
##

set -g @tpm_plugins '               \
        tmux-plugins/tpm            \
        ofirgall/tmux-window-name   \
        tmux-plugins/tmux-sensible  \
        tmux-plugins/tmux-resurrect \
        tmux-plugins/tmux-continuum \
'

# plugins options
set -g @resurrect-strategy-vim 'session'
set -g @resurrect-capture-pane-contents 'on'
set -g @resurrect-processes '                           \
        irb                                             \
        ipython                                         \
        ~ranger                                         \
        pry                                             \
        ri                                              \
        "~bundle exec ri"                               \
        "~bundle exec pry"                              \
        "~pipenv shell"                                 \
        "~pipenv run"                                   \
        glow                                            \
        "~vaas-infra ssh"                               \
        "~vaas-cli -s vaas-infra.dev.alphalink.fr ssh"  \
        ssh                                             \
        mosh                                            \
        tig                                             \
'

set -g @resurrect-strategy-session 'always'
set -g @continuum-restore 'on'
set -g @continuum-save-interval '15'                    # save every minutes
set -g @resurrect-dir "$XDG_CACHE_HOME/tmux/$TMUX_SOCKET_NAME"

# ------------------------------------------------------------------------- }}}
# Status Bar:                                                               {{{
# ----------

set -wg mode-style bg=yellow,fg=black          # selection: same accent as the status bar
set-window-option -g window-status-separator ''
set -g status-position bottom
set -g status-left-length 42
set -g status-right-length 80
set -g status-justify left
#setw -g status-style bg=black
setw -g status-style bg=default

set -g status-left '#{sep_st} λ #S #{sep_c}'
# setw -g window-status-format '#{sep_d} #I #{sep_e} #W #{sep_f}'
# setw -g window-status-current-format '#{sep_g} #I #{sep_h} #W #{sep_i}'
# set -g status-right '#{brightwhite_fg} #h #{sep_b} %a %d/%m/%Y #{sep_a} %H:%M #{sep_on} : #{continuum_status} '
setw -g window-status-format '#{sep_e} #W #{sep_f}'
setw -g window-status-current-format '#{sep_h} #W #{sep_i}'
set -g status-right '#{sep_b} #h #{sep_e}#{sep_on} : #{continuum_status} '


# set Panel borders
set -g pane-active-border-style fg=white,bg=white
set -g pane-border-style fg=white,bg=default

# set Message text
set-option -g message-style bg=default,fg=red
set-option -g message-command-style bg=default,fg=brightwhite

# ------------------------------------------------------------------------- }}}

run '~/.config/tmux/plugins/tpm/tpm'