{ config, lib, pkgs, user, ... }:
let
  inherit (lib.modules) mkIf;
in
{
  options.modules.${user}.shell.toolset.tmux = let
    inherit (lib.options) mkEnableOption;
  in { enable = mkEnableOption "terminal multiplexer"; };

  config = mkIf config.modules.${user}.shell.toolset.tmux.enable {
    home-manager.users.${user} = {
      home.packages = with pkgs; [ tmux ];

      programs.tmux = {
        enable = true;
        secureSocket = true;
        keyMode = "vi";
        prefix = "C-a";
        terminal = "tmux-256color";

        baseIndex = 1;
        clock24 = true;
        disableConfirmationPrompt = true;
        escapeTime = 0;

        aggressiveResize = false;
        resizeAmount = 2;
        reverseSplit = false;
        historyLimit = 5000;
        newSession = true;

        plugins = let
          inherit (pkgs.tmuxPlugins) resurrect continuum;
        in [
          {
            plugin = resurrect;
            extraConfig = "set -g @resurrect-strategy-nvim 'session'";
          }
          {
            plugin = continuum;
            extraConfig = ''
              set -g @continuum-restore 'on'
              set -g @continuum-save-interval '60' # minutes
            '';
          }
        ];

        extraConfig = ''
          # -------===[ Color Correction ]===------- #
          set-option -ga terminal-overrides ",*256col*:Tc"
          set-option -ga terminal-overrides '*:Ss=\E[%p1%d q:Se=\E[ q'
          set-environment -g COLORTERM "truecolor"

          # -------===[ General-Configurations ]===------- #
          set-option -g renumber-windows on
          set-window-option -g automatic-rename on
          set-window-option -g word-separators ' @"=()[]'

          set-option -g mouse on
          set-option -s focus-events on
          set-option -g renumber-windows on
          set-option -g allow-rename off

          # -------===[ Activity/Sound ]===------- #
          set-option -g bell-action none
          set-option -g visual-bell off
          set-option -g visual-silence off
          set-option -g visual-activity off
          set-window-option -g monitor-activity off

          # -------===[ Status-Bar ]===------- #
          set-option -g status on
          set-option -g status-interval 1
          set-option -g status-style bg=default,bold,italics

          set-option -g status-position top
          set-option -g status-justify left

          set-option -g status-left-length "40"
          set-option -g status-right-length "80"

          # -------===[ Keybindings ]===------- #
          bind-key c clock-mode

          # Window Control(s):
          bind-key q kill-session
          bind-key Q kill-server
          bind-key t new-window -c '#{pane_current_path}'

          # Buffers:
          bind-key b list-buffers
          bind-key p paste-buffer
          bind-key P choose-buffer

          # Split bindings:
          bind-key - split-window -v -c '#{pane_current_path}'
          bind-key / split-window -h -c '#{pane_current_path}'

          # Copy/Paste bindings:
          bind-key -T copy-mode-vi v send-keys -X begin-selection     -N "Start visual mode for selection"
          bind-key -T copy-mode-vi y send-keys -X copy-selection      -N "Yank text into buffer"
          bind-key -T copy-mode-vi r send-keys -X rectangle-toggle    -N "Yank region into buffer"
        '';
      };
    };
  };
}