# ==========================
# ===  General settings  ===
# ==========================

# xterm-256color needed for vim to behave:
set -g default-terminal "xterm-256color"
set -g history-limit 20000
set -g buffer-limit 20
set -sg escape-time 10
set -g display-time 1500
set -g remain-on-exit off
set -g repeat-time 300
setw -g allow-rename on
setw -g automatic-rename off
set -g allow-set-title on

setw -g aggressive-resize on
set -g renumber-windows
#set -g default-path "~"

# Change prefix key to C-a, easier to type, same to "screen"
unbind C-b

set -g prefix C-a
bind C-a last-window
bind a send-prefix

# Set parent terminal title to reflect current window in tmux session
set -g set-titles on
set -g set-titles-string "#h/#S ⎨#T⎬"

# Start index of window/pane with 1, because we're humans, not computers (yet)
# set -g base-index 1
# setw -g pane-base-index 1

# Enable mouse support - See bind
set -g mouse on

set -g focus-events on
set-hook -g -w pane-focus-in "set-option -Fw pane-border-status '#{?#{e|>:#{window_panes},1},top,off}'"
set -g pane-border-format "#{pane_index}─#T"
set -g display-panes-time 10000

# ==========================
# ===   Key bindings     ===
# ==========================

# Unbind default key bindings, we're going to override
unbind c
unbind "\$" # rename-session
unbind ,    # rename-window
unbind %    # split-window -h
unbind '"'  # split-window
unbind \}    # swap-pane -D
unbind \{    # swap-pane -U
unbind [    # paste-buffer
unbind ]
unbind "'"  # select-window
unbind p    # previous-window
unbind l    # last-window
unbind M-n  # next window with alert
unbind M-p  # next window with alert
unbind o    # focus thru panes
unbind &    # kill-window
unbind "#"  # list-buffer
unbind =    # choose-buffer
unbind z    # zoom-pane
unbind M-Up  # resize 5 rows up
unbind M-Down # resize 5 rows down
unbind M-Right # resize 5 rows right
unbind M-Left # resize 5 rows left

bind m set mouse\; display-message "Mouse #{?mouse,On,Off}"

# Kill pane/window/session shortcuts
bind k kill-pane
bind K kill-window
unbind "\\"    # zoom-pane
bind C-"\\" confirm-before -p "Really quit and kill all your windows [y/n]" kill-session
bind "\\" confirm-before -p "Really quit and kill all your windows [y/n]" kill-session
bind C-x confirm-before -p "kill other windows? (y/n)" "kill-window -a"

# Edit configuration and reload
bind C-e new-window -n 'tmux.conf' "sh -c '\${EDITOR:-vim} ~/.tmux.conf && tmux source ~/.tmux.conf && tmux display \"Config reloaded\"'"

# Reload tmux configuration
bind C-r source-file ~/.tmux.conf \; display "Config reloaded"

# new window and retain cwd and set default name to blank
bind c new-window -c "#{pane_current_path}" -n ''

# Prompt to rename window right after it's created
# set-hook -g after-new-window 'command-prompt -I "#{window_name}" "rename-window '%%'"'

# Rename session and window
bind A command-prompt -p "Set window's title to:" "rename-window '%%'"
bind r command-prompt -p "Set window's title to:" "rename-window '%%'"
bind R command-prompt -I "#{session_name}" "rename-session '%%'"

# Split panes
bind | split-window -h -c "#{pane_current_path}"
bind - split-window -v -c "#{pane_current_path}"
bind '"' choose-tree -wZ
bind S choose-window "join-pane -v -s "%%""
bind V choose-window "join-pane -h -s "%%""
bind B command-prompt -p "Break pane to new window (name):" "break-pane -n '%%'"
bind ! break-pane -n ''

# Select pane and windows
bind -r C-[ previous-window
bind -r C-] next-window
bind -r [ select-pane -t :.-
bind -r ] select-pane -t :.+
bind -r C-o swap-pane -D

# Zoom pane
bind + resize-pane -Z
bind = resize-pane -Z

# Link window
# bind L command-prompt -p "Link window from (session:window): " "link-window -s %% -a"

# Merge session with another one (e.g. move all windows)
# If you use adhoc 1-window sessions, and you want to preserve session upon exit
# but don't want to create a lot of small unnamed 1-window sessions around
# move all windows from current session to main named one (dev, work, etc)
bind C-u command-prompt -p "Session to merge with: " \
  "run-shell 'yes | head -n #{session_windows} | xargs -I {} -n 1 tmux movew -t %%'"

# Detach from session
bind d detach
bind D if -F '#{session_many_attached}' \
  'confirm-before -p "Detach other clients? (y/n)" "detach -a"' \
  'display "Session has only 1 client attached"'

# Hide status bar on demand
#bind C-s if -F '#{s/off//:status}' 'set status off' 'set status on'

bind-key -n MouseUp2Status kill-window -t=
bind-key -n MouseUp2StatusDefault new-window -a -c "#{pane_current_path}" -n ''
bind -n MouseDown1Status selectw \; set -F @drag_window '#{window_id}'
bind -n MouseDrag1Status run -C 'swapw -ds#{@drag_window}'
bind -n MouseDragEnd1Status set -u @drag_window

# ==================================================
# === Window monitoring for activity and silence ===
# ==================================================
#bind m setw monitor-activity \; display-message 'Monitor window activity [#{?monitor-activity,ON,OFF}]'
#bind M if -F '#{monitor-silence}' \
#  'setw monitor-silence 0 ; display-message "Monitor window silence [OFF]"' \
#  'command-prompt -p "Monitor silence: interval (s)" "setw monitor-silence %%"'

# Activity bell and whistles
set -g visual-activity on

# ================================================
# ===     Copy mode, scroll and clipboard      ===
# ================================================
# Prefer vi style key table
setw -g mode-keys vi

bind p paste-buffer
bind C-p choose-buffer

# trigger copy mode by
bind -n S-Pageup copy-mode

# Scroll up/down by 1 line, half screen, whole screen
bind -T copy-mode-vi M-Up              send-keys -X scroll-up
bind -T copy-mode-vi M-Down            send-keys -X scroll-down
bind -T copy-mode-vi M-PageUp          send-keys -X halfpage-up
bind -T copy-mode-vi M-PageDown        send-keys -X halfpage-down
bind -T copy-mode-vi PageDown          send-keys -X page-down
bind -T copy-mode-vi PageUp            send-keys -X page-up

# When scrolling with mouse wheel, reduce number of scrolled rows per tick to "2" (default is 5)
bind -T copy-mode-vi WheelUpPane       select-pane \; send-keys -X -N 3 scroll-up
bind -T copy-mode-vi WheelDownPane     select-pane \; send-keys -X -N 3 scroll-down

# wrap default shell in reattach-to-user-namespace if available
# there is some hack with `exec & reattach`, credits to "https://github.com/gpakosz/.tmux"
# windows are not renamed to "reattach-to-user-namespace"
#if -b "command -v reattach-to-user-namespace > /dev/null 2>&1" \
#    "run 'tmux set -g default-command \"exec $(tmux show -gv default-shell) 2>/dev/null & reattach-to-user-namespace -l $(tmux show -gv default-shell)\"'"

set -g set-clipboard on

# =====================================
# ===           Theme               ===
# =====================================

# Feel free to NOT use this variables at all (remove, rename)
# this are named colors, just for convenience
color_orange="colour166" # 208, 166
color_purple="colour134" # 135, 134
color_green="colour076" # 070
color_blue="colour39"
color_yellow="colour220"
color_red="colour160"
color_black="colour232"
color_white="white" # 015

# This is a theme CONTRACT, you are required to define variables below
# Change values, but not remove/rename variables itself
color_dark="$color_black"
color_light="$color_white"
#color_session_text="$color_blue"
color_session_text="colour33"
#color_status_text="colour245"
color_status_text="white"
color_main="$color_orange"
color_secondary="$color_purple"
color_level_ok="$color_green"
color_level_warn="$color_yellow"
color_level_stress="$color_red"
color_window_off_indicator="colour088"
color_window_off_status_bg="colour238"
color_window_off_status_current_bg="colour254"
color_tab_inactive="colour237"

# =====================================
# ===    Appearence and status bar  ===
# ======================================

set -g mode-style "fg=default,bg=$color_main"

# command line style
set -g message-style "fg=$color_main,bg=$color_dark"

# status line style
set -g status-style "fg=$color_status_text,bg=$color_dark"

# window segments in status line
set -g window-status-separator ""

# setw -g window-status-style "fg=$color_status_text,bg=$color_dark"
#setw -g window-status-format " #I#{?window_last_flag,⸤,.} #W |"
#setw -g window-status-format "#[fg=$color_dark,bg=$color_dark]🬿#[default] #I#{?window_last_flag,⸤,.} #W #[fg=$color_dark,bg=$color_dark]🭊#[default]|"
setw -g window-status-format "#[fg=$color_dark,bg=$color_tab_inactive]🬿#[bg=$color_tab_inactive,fg=white] #I#{?window_last_flag,⸤,.} #W #[fg=$color_dark,bg=$color_tab_inactive]🭊#[default] "
#setw -g window-status-format " #I#{?window_last_flag,,} #W "
setw -g window-status-current-style "fg=$color_light,bold,bg=$color_main"
#setw -g window-status-current-format "#[fg=$color_dark,bg=$color_main] #Iˢ #W #[fg=$color_status_text,bg=$color_dark]\|#[default]"
#setw -g window-status-current-format "#[fg=$color_dark,bg=terminal] #Iˢ #W #[fg=$color_status_text,bg=$color_dark]\|#[default]"
#setw -g window-status-current-format "#[fg=$color_dark,bg=$color_main]🬿 #Iˢ #W 🭊#[fg=$color_status_text,bg=$color_dark]|#[default]"
#setw -g window-status-current-format "#[fg=$color_dark,bg=terminal]🬿 #Iˢ #W 🭊#[fg=$color_status_text,bg=$color_dark]|#[default]"
setw -g window-status-current-format "#[fg=$color_dark,bg=terminal]🬿 #Iˢ #W 🭊#[fg=$color_status_text,bg=$color_dark] #[default]"

# when window has monitoring notification
setw -g window-status-activity-style "fg=$color_main"

# outline for active pane
setw -g pane-active-border-style "fg=$color_main"

# general status bar settings
set -g status on
set -g status-interval 5
set -g status-position bottom
set -g status-justify left
set -g status-right-length 100

# define widgets we're going to use in status bar
# note, that this is not the complete list, some of them are loaded from plugins
wg_session="#[fg=$color_session_text] #h #[default]│"
#wg_battery="#{battery_status_fg} #{battery_icon} #{battery_percentage}"
#wg_date="#[fg=$color_secondary]%h %d %H:%M#[default]"
wg_is_zoomed="#[fg=$color_dark,bg=$color_secondary]#{?window_zoomed_flag, 🔍 ,}#[default]"
# TODO: highlighted for nested local session as well
wg_is_keys_off="#[fg=white,bg=$color_window_off_indicator]#([ $(tmux show-option -qv key-table) = 'off' ] && echo ' 🔒⌨️ ')#[default]"

set -g status-left "$wg_session"
set -g status-right "#{prefix_highlight} $wg_is_keys_off$wg_is_zoomed │#[fg=$color_session_text] #S #[default]"

# =====================================
# ===        Renew environment      ===
# =====================================
set -g update-environment \
  "DISPLAY\
  GDK_CORE_DEVICE_EVENTS\
  __GL_MaxFramesAllowed\
  GTK2_RC_FILES\
  GTK_IM_MODULE\
  GTK_RC_FILES\
  KDE_APPLICATIONS_AS_SCOPE\
  KDEDIRS\
  KDE_FULL_SESSION\
  KDE_SESSION_UID\
  KDE_SESSION_VERSION\
  LANG\
  LANGUAGE\
  LC_MEASUREMENT\
  LC_NUMERIC\
  SSH_AGENT_PID\
  SSH_ASKPASS\
  SSH_AUTH_SOCK\
  SSH_CLIENT\
  SSH_CONNECTION\
  SSH_TTY\
  VSCODE_GIT_ASKPASS_EXTRA_ARGS\
  VSCODE_GIT_ASKPASS_MAIN\
  VSCODE_GIT_ASKPASS_NODE\
  VSCODE_GIT_IPC_HANDLE\
  VSCODE_INJECTION\
  VSCODE_IPC_HOOK_CLI\
  VSCODE_PYTHON_AUTOACTIVATE_GUARD\
  WINDOWID\
  XAUTHORITY\
  XCURSOR_SIZE\
  XCURSOR_THEME\
  XDG_CONFIG_DIRS\
  XDG_CURRENT_DESKTOP\
  XDG_DATA_DIRS\
  XDG_MENU_PREFIX\
  XDG_RUNTIME_DIR\
  XDG_SEAT\
  XDG_SEAT_PATH\
  XDG_SESSION_CLASS\
  XDG_SESSION_DESKTOP\
  XDG_SESSION_ID\
  XDG_SESSION_PATH\
  XDG_SESSION_TYPE\
  XDG_VTNR"

bind '$' run "~/.tmux/renew_env.sh"

# ==============================================
# ===   Nesting local and remote sessions     ===
# ==============================================

# Session is considered to be remote when we ssh into host
#if-shell 'test -n "$SSH_CLIENT"' \
#    'source-file ~/.tmux/tmux.remote.conf'

# We want to have single prefix key "C-a", usable both for local and remote session
# we don't want to "C-a" + "a" approach either
# Idea is to turn off all key bindings and prefix handling on local session,
# so that all keystrokes are passed to inner/remote session

# see: toggle on/off all keybindings · Issue #237 · tmux/tmux - https://github.com/tmux/tmux/issues/237

# Also, change some visual styles when window keys are off
### bind -T root F12  \
###   set prefix None \;\
###   set key-table off \;\
###   set status-style "fg=$color_status_text,bg=$color_window_off_status_bg" \;\
###   set window-status-current-format "#[fg=$color_dark,bg=$color_window_off_status_current_bg] #Iˢ #W #[fg=$color_light,bg=$color_window_off_status_bg]#[default]" \;\
###   set window-status-current-style "fg=$color_light,bold,bg=$color_window_off_status_current_bg" \;\
###   if -F '#{pane_in_mode}' 'send-keys -X cancel' \;\
###   refresh-client -S \;\

bind -T root F12  \
  set prefix None \;\
  set key-table off \;\
  set status-style "fg=$color_status_text,bg=$color_window_off_status_bg" \;\
  set window-status-format "#[fg=$color_dark,bg=$color_window_off_status_bg]🬿#[bg=$color_window_off_status_bg,fg=$color_status_text] #I#{?window_last_flag,⸤,.} #W #[fg=$color_dark,bg=$color_window_off_status_bg]🭊#[default] " \;\
  set window-status-current-format "#[fg=$color_dark,bg=$color_window_off_status_bg]🬿 #Iˢ #W 🭊#[fg=$color_status_text,bg=$color_dark] #[default]" \;\
  set window-status-current-style "fg=$color_light,bold,bg=$color_window_off_status_current_bg" \;\
  if -F '#{pane_in_mode}' 'send-keys -X cancel' \;\
  refresh-client -S \;\


bind -T off F12 \
  set -u prefix \;\
  set -u key-table \;\
  set -u status-style \;\
  set -u window-status-format \;\
  set -u window-status-current-style \;\
  set -u window-status-current-format \;\
  refresh-client -S

bind -T root F4 kill-pane
# new window and retain cwd and set default name to blank
bind -T root F3 new-window -c "#{pane_current_path}" -n ''

bind -T root F1 split-window -h -c "#{pane_current_path}"
bind -T root F2 split-window -v -c "#{pane_current_path}"