#
# Hierarchy:
#  Server
#  ㄴSession
#    ㄴWindow
#      ㄴPane

# =============================================================================
# Environment
# =============================================================================

# Set default PATH for run-shell commands
set-environment -g PATH "/opt/homebrew/bin:$HOME/.tmux/bin:$PATH"

# =============================================================================
# Plugins
# =============================================================================

set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-yank'
set -g @plugin 'babarot/tmux-powerkit#feature/separate-left-right-plugins'
set -g @plugin 'babarot/tmux-git-prompt'

# PowerKit theme configuration
set -g @powerkit_theme 'tokyo-night'
set -g @powerkit_theme_variant 'night'
set -g @powerkit_plugins_left 'external(|$(~/.tmux/bin/kube)|secondary|accent|0)'
set -g @powerkit_plugins_right 'external(|$(~/.tmux/bin/path --dir #{pane_current_path} --style minimal)|secondary|accent|0)'

# PowerKit keybinding overrides (avoid conflicts with existing bindings)
set -g @powerkit_plugin_cache_clear_key "A"
set -g @powerkit_plugin_kubernetes_context_selector_key "O"
set -g @powerkit_plugin_kubernetes_namespace_selector_key "W"
set -g @powerkit_theme_selector_key "F"

# =============================================================================
# Basic Settings
# =============================================================================

# Mouse support
set -g mouse on
bind-key -T edit-mode-vi WheelUpPane send-keys -X scroll-up
bind-key -T edit-mode-vi WheelDownPane send-keys -X scroll-down

# Shell configuration
set-option -g default-command "${SHELL}"
set-option -s escape-time 0

# Prefix key configuration
set-option -g prefix C-s
bind-key C-s send-prefix
unbind-key C-b

# Keep the window's name fixed
set-option -g allow-rename off

# System window title
set-option -g set-titles on
set-option -g set-titles-string "[tmux] #T @ #H"

# Display time
set-option -g display-time 3500

# Start index from 1
set-option -g base-index 1
set-window-option -g pane-base-index 1

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

# Reload configuration
bind-key r source-file ~/.tmux.conf ; display-message "[tmux] ~/.tmux.conf reloaded!"
bind-key C-r source-file ~/.tmux.conf ; display-message "[tmux] ~/.tmux.conf reloaded!"

# Disable default bindings
unbind-key t              # Disable clock-mode
unbind-key -T root C-o    # Disable Ctrl-o for last-pane (set by plugin)

# --- Clients ---
bind-key N switch-client -n
bind-key P switch-client -p

# --- Windows ---
# Split window
bind-key | split-window -h -c "#{pane_current_path}"
bind-key - split-window -c "#{pane_current_path}"

# Change active window
bind-key -r C-h select-window -t :-
bind-key -r C-l select-window -t :+

# --- Panes ---
# Resize pane
bind-key -r H resize-pane -L 5
bind-key -r J resize-pane -D 5
bind-key -r K resize-pane -U 5
bind-key -r L resize-pane -R 5

# Change active pane
bind-key h select-pane -L
bind-key j select-pane -D
bind-key k select-pane -U
bind-key l select-pane -R

# Break or kill pane
bind-key b break-pane
bind-key q kill-pane
bind-key C-q kill-session
bind-key C-x run "tmux kill-pane || tmux kill-window"

# =============================================================================
# Appearance
# =============================================================================

# Terminal settings
set-option -g default-terminal "screen-256color"
set-option -g status-position top

# Status bar configuration
set-option -g status on
set-option -g status-left-length 2000
set-option -g status-right-length 2000
set-option -g status-interval 1
set-option -g status-justify centre

# Pane border settings
set-window-option -g pane-border-status top
setw -g window-status-activity-style bg="colour235"

# Visual notifications
set-window-option -g monitor-activity on
set-option -g visual-activity on

# Copy-mode style (Tokyo Night)
set-option -g mode-style "bg=#283457,fg=#c0caf5"

# =============================================================================
# Copy Mode
# =============================================================================

set-window-option -g mode-keys vi

# Enter copy mode
bind-key v copy-mode ; display "Copy mode!"
bind-key C-v copy-mode ; display "Copy mode!"
bind-key C-s copy-mode ; display "Copy mode!"

# Copy mode key bindings
bind-key   -T edit-mode-vi Up    send-keys -X history-up
bind-key   -T edit-mode-vi Down  send-keys -X history-down
bind-key   -T copy-mode-vi v     send-keys -X begin-selection
bind-key   -T copy-mode-vi y     send-keys -X copy-pipe-and-cancel "reattach-to-user-namespace pbcopy"
unbind-key -T copy-mode-vi Space
unbind-key -T copy-mode-vi Enter

# =============================================================================
# Plugin Manager
# =============================================================================

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