# For reference of the available options, see https://docs.noctalia.dev/getting-started/nixos/#config-ref
#
# To see a diff of the nix-set and GUI-set (current) settings, run:
# nix shell nixpkgs#jq nixpkgs#colordiff -c bash -c "colordiff -u --nobanner <(jq -S . ~/.config/noctalia/settings.json) <(noctalia-shell ipc call state all | jq -S .settings)"
{ config, lib, pkgs, inputs, ... }:

with lib;

let
  cfg = config.noctaliaShell;
in
{
  imports = [
    inputs.noctalia.homeModules.default
  ];

  options.noctaliaShell = {
    enable = mkEnableOption "Noctalia shell";

    colorScheme = mkOption {
      type = types.str;
      default = "Noctalia (default)";
      description = ''
        Predefined color scheme to use. Options include:
        "Noctalia (default)", "Monochrome", "Catppuccin Mocha", etc.
        See Noctalia docs for full list.
      '';
    };

    useWallpaperColors = mkOption {
      type = types.bool;
      default = false;
      description = "Generate colors from wallpaper instead of using predefined scheme";
    };

    darkMode = mkOption {
      type = types.bool;
      default = true;
      description = "Use dark mode for Noctalia shell";
    };

    barPosition = mkOption {
      type = types.enum [ "top" "bottom" "left" "right" ];
      default = "top";
      description = "Position of the Noctalia bar";
    };

    barDensity = mkOption {
      type = types.enum [ "spacious" "comfortable" "default" "compact" "mini" ];
      default = "default";
      description = "Bar density (compact for vertical bars)";
    };

    enableDock = mkOption {
      type = types.bool;
      default = true;
      description = "Enable the Noctalia dock";
    };

    dockPosition = mkOption {
      type = types.enum [ "top" "bottom" "left" "right" ];
      default = "bottom";
      description = "Position of the dock";
    };

    pinnedApps = mkOption {
      type = types.listOf types.str;
      default = [ ];
      description = "List of .desktop file names for pinned dock apps";
    };

    avatarImage = mkOption {
      type = types.str;
      default = "";
      description = "Path to avatar image for user profile";
    };

    locationName = mkOption {
      type = types.str;
      default = "Denver";
      description = "Location name for weather widget";
    };

    use12hourFormat = mkOption {
      type = types.bool;
      default = false;
      description = "Use 12-hour time format";
    };

    useFahrenheit = mkOption {
      type = types.bool;
      default = false;
      description = "Use Fahrenheit for temperature";
    };

    # UI settings
    fontDefault = mkOption {
      type = types.str;
      default = "";
      description = "Default font for Noctalia shell";
    };

    fontFixed = mkOption {
      type = types.str;
      default = "";
      description = "Monospace font for Noctalia shell";
    };

    fontDefaultScale = mkOption {
      type = types.float;
      default = 1.0;
      description = "Scale factor for default font";
    };

    panelBackgroundOpacity = mkOption {
      type = types.float;
      default = 0.93;
      description = "Background opacity for panels";
    };

    # General settings
    dimmerOpacity = mkOption {
      type = types.float;
      default = 0.2;
      description = "Opacity for screen dimmer";
    };

    lockScreenAnimations = mkOption {
      type = types.bool;
      default = false;
      description = "Enable lock screen animations";
    };

    lockScreenCountdownDuration = mkOption {
      type = types.int;
      default = 10000;
      description = "Lock screen countdown duration in milliseconds";
    };

    telemetryEnabled = mkOption {
      type = types.bool;
      default = false;
      description = "Enable telemetry for Noctalia";
    };

    # Bar settings
    barBackgroundOpacity = mkOption {
      type = types.float;
      default = 0.93;
      description = "Bar background opacity";
    };

    clockFormat = mkOption {
      type = types.str;
      default = "HH:mm ddd, MMM dd";
      description = "Clock format for horizontal display";
    };

    launcherIcon = mkOption {
      type = types.str;
      default = "activities";
      description = "Icon for the launcher widget";
    };

    # Wallpaper settings
    wallpaperDirectory = mkOption {
      type = types.str;
      default = "";
      description = "Directory containing wallpapers";
    };

    # Dock settings
    dockBackgroundOpacity = mkOption {
      type = types.float;
      default = 1.0;
      description = "Dock background opacity";
    };

    dockSize = mkOption {
      type = types.float;
      default = 1.0;
      description = "Dock size multiplier";
    };

    # Notification settings
    notificationLocation = mkOption {
      type = types.enum [ "top" "top_right" "top_left" "bottom" "bottom_right" "bottom_left" ];
      default = "top_right";
      description = "Location for notifications";
    };

    enableMediaToast = mkOption {
      type = types.bool;
      default = false;
      description = "Enable media change toast notifications";
    };

    # OSD settings
    osdLocation = mkOption {
      type = types.enum [ "top" "top_right" "top_left" "bottom" "bottom_right" "bottom_left" "center" ];
      default = "top_right";
      description = "Location for OSD popups";
    };

    # Night light settings
    enableNightLight = mkOption {
      type = types.bool;
      default = false;
      description = "Enable night light feature";
    };

    nightLightTemp = mkOption {
      type = types.str;
      default = "4000";
      description = "Night time color temperature";
    };

    # System monitor settings
    systemMonitorUseCustomColors = mkOption {
      type = types.bool;
      default = false;
      description = "Use custom colors for system monitor thresholds";
    };

    systemMonitorWarningColor = mkOption {
      type = types.str;
      default = "";
      description = "Warning color for system monitor";
    };

    systemMonitorCriticalColor = mkOption {
      type = types.str;
      default = "";
      description = "Critical color for system monitor";
    };

    # Plugin settings
    pluginsAutoUpdate = mkOption {
      type = types.bool;
      default = false;
      description = "Auto-update Noctalia plugins";
    };

    # Calendar settings
    firstDayOfWeek = mkOption {
      type = types.int;
      default = (-1);
      description = "First day of week (-1 for system default, 0=Sunday, 1=Monday)";
    };

    hideWeatherTimezone = mkOption {
      type = types.bool;
      default = false;
      description = "Hide timezone in weather display";
    };
  };

  config = mkIf cfg.enable {
    # Configure Noctalia shell via home-manager module
    programs.noctalia-shell = {
      enable = true;

      # Don't install the package separately since systemd service handles it
      # But we need it for IPC commands in keybinds
      package = inputs.noctalia.packages.${pkgs.stdenv.hostPlatform.system}.default;

      settings = mkMerge [
        # Use mkDefault for all settings to allow per-host overrides
        (mkDefault {
          colorSchemes = {
            useWallpaperColors = cfg.useWallpaperColors;
            predefinedScheme = cfg.colorScheme;
            darkMode = cfg.darkMode;
          };

          bar = {
            position = cfg.barPosition;
            density = cfg.barDensity;
            backgroundOpacity = cfg.barBackgroundOpacity;
            showCapsule = true;
            floating = false;
            widgets = {
              left = [
                { id = "Launcher"; icon = cfg.launcherIcon; }
                { id = "Clock"; formatHorizontal = cfg.clockFormat; }
                { id = "SystemMonitor"; }
                { id = "ActiveWindow"; }
                { id = "MediaMini"; }
              ];
              center = [
                { id = "Workspace"; }
              ];
              right = [
                { id = "Tray"; }
                { id = "NotificationHistory"; }
                { id = "Battery"; }
                { id = "Volume"; }
                { id = "Brightness"; }
                { id = "ControlCenter"; }
              ];
            };
          };

          dock = {
            enabled = cfg.enableDock;
            position = cfg.dockPosition;
            displayMode = "auto_hide";
            backgroundOpacity = cfg.dockBackgroundOpacity;
            size = cfg.dockSize;
            pinnedApps = cfg.pinnedApps;
          };

          general = {
            avatarImage = cfg.avatarImage;
            dimmerOpacity = cfg.dimmerOpacity;
            radiusRatio = 1;
            animationSpeed = 1;
            enableShadows = true;
            lockScreenAnimations = cfg.lockScreenAnimations;
            lockScreenCountdownDuration = cfg.lockScreenCountdownDuration;
            telemetryEnabled = cfg.telemetryEnabled;
          };

          ui = {
            fontDefault = cfg.fontDefault;
            fontFixed = cfg.fontFixed;
            fontDefaultScale = cfg.fontDefaultScale;
            panelBackgroundOpacity = cfg.panelBackgroundOpacity;
          };

          location = {
            name = cfg.locationName;
            weatherEnabled = true;
            use12hourFormat = cfg.use12hourFormat;
            useFahrenheit = cfg.useFahrenheit;
            firstDayOfWeek = cfg.firstDayOfWeek;
            hideWeatherTimezone = cfg.hideWeatherTimezone;
          };

          wallpaper = {
            enabled = true;
            directory = cfg.wallpaperDirectory;
          };

          notifications = {
            enabled = true;
            location = cfg.notificationLocation;
            enableMediaToast = cfg.enableMediaToast;
          };

          osd = {
            enabled = true;
            location = cfg.osdLocation;
          };

          nightLight = {
            enabled = cfg.enableNightLight;
            autoSchedule = true;
            nightTemp = cfg.nightLightTemp;
          };

          systemMonitor = {
            useCustomColors = cfg.systemMonitorUseCustomColors;
            warningColor = cfg.systemMonitorWarningColor;
            criticalColor = cfg.systemMonitorCriticalColor;
          };

          plugins = {
            autoUpdate = cfg.pluginsAutoUpdate;
          };

          appLauncher = {
            position = "center";
            sortByMostUsed = true;
            viewMode = "list";
          };
        })
      ];
    };

    # Disable conflicting services that Noctalia replaces
    services.swayosd.enable = mkForce false;
    services.swaync.enable = mkForce false;

    # Disable wlsunset - Noctalia has built-in night light
    services.wlsunset.enable = mkForce false;

    # Disable waybar - Noctalia has its own bar
    waybarConfig.enable = mkForce false;
    programs.waybar.enable = mkForce false;
  };
}