tmux.conf

# Tmux Configuration
# Based on best practices for development workflows

# ===========================
# General Settings
# ===========================

# Set default shell to zsh
set-option -g default-shell /opt/homebrew/bin/zsh
set-option -g default-command /opt/homebrew/bin/zsh

# Set prefix to Ctrl-a (easier to reach than Ctrl-b)
unbind C-b
set-option -g prefix C-a
bind-key C-a send-prefix

# Enable 256 colors (simplified for compatibility)
set -g default-terminal "screen-256color"

# Set scrollback buffer size
set -g history-limit 50000

# Enable mouse support
set -g mouse on

# Start windows and panes at 1, not 0
set -g base-index 1
setw -g pane-base-index 1

# Renumber windows when one is closed
set -g renumber-windows on

# Set escape time (for vim)
set -sg escape-time 0

# Enable vi mode
setw -g mode-keys vi

# Status bar update interval
set -g status-interval 5

# Enable focus events
set -g focus-events on

# Aggressive resize
setw -g aggressive-resize on

# Set terminal title
set -g set-titles on
set -g set-titles-string '#H:#S.#I.#P #W #T'

# Activity monitoring
setw -g monitor-activity on
set -g visual-activity off

# ===========================
# Key Bindings
# ===========================

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

# Split panes using | and -
bind | split-window -h -c "#{pane_current_path}"
bind - split-window -v -c "#{pane_current_path}"
unbind '"'
unbind %

# Navigate panes with vim-like keys
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# Resize panes with vim-like keys
bind -r H resize-pane -L 5
bind -r J resize-pane -D 5
bind -r K resize-pane -U 5
bind -r L resize-pane -R 5

# Quick pane cycling
bind -r Tab select-pane -t :.+

# Window navigation
bind -r C-h select-window -t :-
bind -r C-l select-window -t :+

# Move windows left/right
bind -r < swap-window -t -1 \; select-window -t -1
bind -r > swap-window -t +1 \; select-window -t +1

# Synchronize panes
bind S setw synchronize-panes

# Copy mode bindings (vi-style)
bind Enter copy-mode
bind -T copy-mode-vi v send-keys -X begin-selection
bind -T copy-mode-vi y send-keys -X copy-selection-and-cancel
bind -T copy-mode-vi r send-keys -X rectangle-toggle

# Paste buffer
bind p paste-buffer
bind P choose-buffer

# Clear history
bind -n C-k clear-history

# Layout shortcuts
bind M-1 select-layout main-horizontal
bind M-2 select-layout main-vertical
bind M-3 select-layout even-horizontal
bind M-4 select-layout even-vertical
bind M-5 select-layout tiled

# Toggle pane zoom
bind z resize-pane -Z

# Break pane into window
bind b break-pane -d

# Join pane from window
bind-key j command-prompt -p "join pane from:"  "join-pane -s '%%'"
bind-key s command-prompt -p "send pane to:"  "join-pane -t '%%'"

# ===========================
# Status Bar
# ===========================

# Status bar position
set -g status-position bottom

# Status bar colors (simple, compatible colors)
set -g status-bg black
set -g status-fg white

# Status left
set -g status-left-length 50
set -g status-left ' #S | #I:#P '

# Status right
set -g status-right-length 100
set -g status-right ' %a %Y-%m-%d | %H:%M:%S | #(whoami)@#H '

# Window status (simple format)
setw -g window-status-format ' #I:#W '
setw -g window-status-current-format '[#I:#W]'

# Message style
set -g message-style 'fg=white,bg=black,bold'

# Pane borders
set -g pane-border-style 'fg=white'
set -g pane-active-border-style 'fg=green'

# Display panes
set -g display-panes-active-colour green
set -g display-panes-colour white

# ===========================
# Copy Mode and Clipboard
# ===========================

# macOS clipboard integration
bind -T copy-mode-vi y send-keys -X copy-pipe-and-cancel "pbcopy"
bind -T copy-mode-vi Enter send-keys -X copy-pipe-and-cancel "pbcopy"
bind -T copy-mode-vi MouseDragEnd1Pane send-keys -X copy-pipe-and-cancel "pbcopy"

# Enter copy mode with Prefix + [
bind [ copy-mode

# Search in copy mode
bind / copy-mode \; send-keys ?

# Quick scrolling
bind -T copy-mode-vi C-u send-keys -X halfpage-up
bind -T copy-mode-vi C-d send-keys -X halfpage-down

# Select entire line
bind -T copy-mode-vi V send-keys -X select-line

# Copy current command line
bind Y run-shell "tmux show-buffer | pbcopy" \; display-message "Copied to clipboard"

# ===========================
# Smart Pane Navigation
# ===========================

# Smart pane switching with awareness of Vim splits
is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
    | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|n?vim?x?)(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"

# ===========================
# Performance Optimization
# ===========================

# Reduce escape time
set -s escape-time 0

# Increase repeat time
set -g repeat-time 600

# Reduce display time
set -g display-time 2000
set -g display-panes-time 2000

# Optimize for fast terminals
set -g assume-paste-time 0

# Don't exit copy mode on mouse release
unbind -T copy-mode-vi MouseDragEnd1Pane

# Limit buffer size
set -g buffer-limit 20

# Set update environment
set -g update-environment "DISPLAY SSH_ASKPASS SSH_AUTH_SOCK SSH_AGENT_PID SSH_CONNECTION WINDOWID XAUTHORITY"

# ===========================
# Nested Sessions Support
# ===========================

# Toggle on/off all keybindings (for nested tmux)
bind -T root F12  \
  set prefix None \;\
  set key-table off \;\
  set status-style "fg=colour245,bg=colour238" \;\
  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 \;\
  refresh-client -S

# ===========================
# Plugins (TPM)
# ===========================

# List of plugins
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-sensible'
set -g @plugin 'tmux-plugins/tmux-resurrect'
set -g @plugin 'tmux-plugins/tmux-continuum'
set -g @plugin 'tmux-plugins/tmux-yank'
set -g @plugin 'tmux-plugins/tmux-copycat'
set -g @plugin 'tmux-plugins/tmux-open'
set -g @plugin 'tmux-plugins/tmux-pain-control'
set -g @plugin 'christoomey/vim-tmux-navigator'

# Additional plugins
set -g @plugin 'akohlbecker/aw-watcher-tmux'
set -g @plugin 'bjesus/muxile'
set -g @plugin 'b0o/tmux-autoreload'
set -g @plugin 'ofirgall/tmux-browser'
set -g @plugin 'vascomfnunes/tmux-cargo'
set -g @plugin 'tmux-plugins/tmux-cowboy'
set -g @plugin 'tmux-plugins/tmux-fpp'
set -g @plugin 'wfxr/tmux-fzf-url'
set -g @plugin 'sainnhe/tmux-fzf'
set -g @plugin 'danyim/tmux-git-autofetch'
set -g @plugin 'tmux-plugins/tmux-logging'
set -g @plugin 'jaclu/tmux-menus'
set -g @plugin 'noscript/tmux-mighty-scroll'
set -g @plugin 'koiosdev/tmux-neolazygit'
set -g @plugin 'joshmedeski/tmux-nerd-font-window-name'
set -g @plugin 'rickstaa/tmux-notify'
set -g @plugin 'erikw/tmux-powerline'

# Plugin configurations
set -g @resurrect-save 'S'
set -g @resurrect-restore 'R'
set -g @resurrect-strategy-vim 'session'
set -g @resurrect-capture-pane-contents 'on'

set -g @continuum-restore 'on'
set -g @continuum-boot 'on'
set -g @continuum-save-interval '15'

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