# KEY BINDINGS
# Adrien Luxey

#######################
# Packages management #
#######################

# Tmux Package Manager
# Prefix + I => Install plugins (after adding them to tmux.conf)
# Prefix + + Alt-u => uninstall
# Prefix + U => Update packages
set -g @plugin 'tmux-plugins/tpm'

# Save and restore Tmux sessions
# Prefix + Ctrl-s => Save current session
# Prefix + Ctrl-r => Restore
#set -g @plugin 'tmux-plugins/tmux-resurrect'

# Continuous saving tmux environment (depends on Ressurect)
# Also auto-starts tmux on boot and auto-restores last session
#set -g @plugin 'tmux-plugins/tmux-continuum'
#set -g status-right 'Continuum status: #{continuum_status}'
#set -g @continuum-restore 'on' # Auto restore previous session
#set -g @continuum-save-interval '15' # save time in minutes

# Copy to system clipboard
# Normal mode: 
#   Prefix + y => (yank) Copies text from command line to clipboard
# Copy mode:
#   y => copy selection to clipboard
#   Y => Put (copy a selection then paste it to cmd)
#set -g @plugin 'tmux-plugins/tmux-yank'

# Manage sessions, windows etc. with fzf
#set -g @plugin 'sainnhe/tmux-fzf'

# Opens stuff
#set -g @plugin 'tmux-plugins/tmux-open'
#set -g @open-S 'https://www.startpage.com/do/search?cat=web&cmd=process_search&language=english&engine0=v1all&abp=1&query='
#set -g @open 'C-f'
#set -g @open-editor 'C-e'

###########
# Theming #
###########

# Set current dir name as tab (window) name
# * Shows pwd #{b:pane_current_path}
# * Shows full path #{pane_current_path}
#path="#(if [[ $HOME == #{pane_current_path} ]]; then echo \"~\" ; else echo #{b:pane_current_path}; fi)"
#set -g status-interval 1
#set-window-option -g window-status-separator ""
#set-window-option -g window-status-current-format " #{b:pane_current_path} "
#set-window-option -g window-status-format " #{b:pane_current_path} "


# Tmux OneDark: http://github.com/odedlaz/tmux-onedark-themetheme
set -g @plugin 'odedlaz/tmux-onedark-theme'

# Make tmux display true colors
#set -g default-terminal "screen-256color"
set -g default-terminal "xterm-256color"
# Creates a visual glitch with e.g. colored comments, don't use.
#set -ga terminal-overrides ",*256col*:Tc"

#set-option -g allow-rename off

########
# Misc #
########

set -g mouse on

# Home/End keys handled in [n]vim 
bind-key -n Home send Escape "OH"
bind-key -n End send Escape "OF"

# Set the display duration of message (in ms)
set-option -g display-time 4000

# Remember my path when splitting windows
bind % split-window -h -c '#{pane_current_path}'  # Split panes horizontally
bind '"' split-window -v -c '#{pane_current_path}'  # Split panes vertically

# A big-ass history
set -g history-limit 50000

# Fast key repetition with escape-time 0
set -g escape-time 0

######################
# Vim Tmux Navigator #
######################

# Smart pane switching with awareness of Vim splits.
# See: https://github.com/christoomey/vim-tmux-navigator
is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
    | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|l?n?vim?x?|fzf)(diff)?$'"
bind-key -n 'C-h' if-shell "$is_vim" 'send-keys C-h'  'select-pane -L'
bind-key -n 'C-j' if-shell "$is_vim" 'send-keys C-j'  'select-pane -D'
bind-key -n 'C-k' if-shell "$is_vim" 'send-keys C-k'  'select-pane -U'
bind-key -n 'C-l' if-shell "$is_vim" 'send-keys C-l'  'select-pane -R'

tmux_version='$(tmux -V | sed -En "s/^tmux ([1-9]+(.[0-9]+)?).*/\1/p")'
if-shell -b '[ "$(echo "$tmux_version < 3.0" | bc)" = 1 ]' \
    "bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\'  'select-pane -l'"
if-shell -b '[ "$(echo "$tmux_version >= 3.0" | bc)" = 1 ]' \
    "bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\\\'  'select-pane -l'"

bind-key -T copy-mode-vi 'C-h' select-pane -L
bind-key -T copy-mode-vi 'C-j' select-pane -D
bind-key -T copy-mode-vi 'C-k' select-pane -U
bind-key -T copy-mode-vi 'C-l' select-pane -R
bind-key -T copy-mode-vi 'C-m' select-pane -l

# Notes : 
# prefix ~ --> show-messages (see previous messages)

###################
# Nested sessions #
###################

# F10 toggles tmux listening for keystrokes, allowing to switch betwen remote and local
# https://www.freecodecamp.org/news/tmux-in-practice-local-and-nested-remote-tmux-sessions-4f7ba5db8795/
bind -T root F10 \
  set prefix None \;\
  set key-table off \;\
  display-message "Discarding keystrokes."\;\
  if -F '#{pane_in_mode}' 'send-keys -X cancel' \;\
  refresh-client -S
bind -T off F10 \
  set -u prefix \;\
  set -u key-table \;\
  display-message "Listening to keystrokes."\;\
  refresh-client -S

################
# Alex's stuff #
################

setw -g mode-keys vi

# remap prefix to Control + a
set -g prefix C-q
unbind C-b
bind C-q send-prefix

unbind q
bind-key q copy-mode

unbind p
bind p paste-buffer

# force a reload of the config file
unbind r
bind r source-file ~/.tmux.conf

# quick pane cycling
unbind ^A
bind ^A select-pane -t :.+

# switch panes using vim-like bindings C-a hjkl
unbind h
unbind j
unbind k
unbind l
bind h select-pane -L
bind l select-pane -R
bind k select-pane -U
bind j select-pane -D
# switch windows using bindings C-q C-hl
#unbind ^H
#unbind ^L
bind ^H previous-window
bind ^L next-window

# Initialize TMUX plugin manager (keep this line at the very bottom of tmux.conf)
run -b '~/.tmux/plugins/tpm/tpm'