# ~/.config/tmux/tmux.conf

# Enable extended key reporting for terminals/apps that support it.
set -g extended-keys on
set -g extended-keys-format csi-u

# Use 256-colour tmux terminfo and advertise truecolour support to apps.
set -g default-terminal "tmux-256color"
set -as terminal-features ",*:RGB"

# Keep a large scrollback history.
set -g history-limit 1000000

# Reload config with prefix + r.
bind-key r source-file ~/.config/tmux/tmux.conf \; display-message "tmux config reloaded"

# Pane navigation with Vim-style keys
bind-key h select-pane -L
bind-key j select-pane -D
bind-key k select-pane -U
bind-key l select-pane -R

# Optional no-prefix pane navigation with Alt+hjkl
bind-key -n M-h select-pane -L
bind-key -n M-j select-pane -D
bind-key -n M-k select-pane -U
bind-key -n M-l select-pane -R

# Mouse support: scroll with the wheel, resize/select panes, and make mouse
# selections pane-aware instead of selecting across the whole terminal window.
set-option -g mouse on

# Vim-like copy mode
setw -g mode-keys vi

# Quieter tmux: no audible/visual bell or activity bell noise
set-option -g bell-action none
set-option -g visual-bell off
set-option -g visual-activity off
set-window-option -g monitor-bell off

# Vi-style selection/copy bindings in copy-mode.
# tmux copy-mode sends plain text, not ANSI colour/control codes.
bind-key -T copy-mode-vi v send-keys -X begin-selection
bind-key -T copy-mode-vi C-v send-keys -X rectangle-toggle
bind-key -T copy-mode-vi y send-keys -X copy-selection-and-cancel
bind-key -T copy-mode-vi Enter send-keys -X copy-selection-and-cancel

# Mouse drag selection stays inside the pane; releasing the mouse copies it to
# the system clipboard using wl-copy.
bind-key -T copy-mode-vi MouseDragEnd1Pane send-keys -X copy-selection-and-cancel