{ pkgs, lib, ... }:

let
  mkLua = lib.generators.mkLuaInline;
in
{
  wayland.windowManager.hyprland = {
    enable = true;
    configType = "lua";
    package = null; # Hyprland package is managed system-wide via NixOS programs.hyprland

    settings = {
      # -----------------------------------------------------------------------
      # 1. Variables & Modifiers (Rendered as Lua local variables)
      # -----------------------------------------------------------------------
      mainMod = { _var = "SUPER"; };
      terminal = { _var = "foot"; };
      browser = { _var = "brave"; };

      # -----------------------------------------------------------------------
      # 2. Monitors (hl.monitor)
      # -----------------------------------------------------------------------
      monitor = [
        {
          output = "eDP-2";
          mode = "3840x2160@144";
          position = "0x0";
          scale = 2;
        }
        {
          output = "desc:Dell Inc. DELL U3419W 28DQ5T2";
          mode = "3440x1440@60";
          position = "0x-1440";
          scale = 1;
        }
        {
          output = "desc:Samsung Electric Company Odyssey Ark H1AK500000";
          mode = "3840x2160@144";
          position = "3840x0";
          scale = 1;
        }
        {
          output = "";
          mode = "preferred";
          position = "auto";
          scale = "auto";
        }
      ];

      # -----------------------------------------------------------------------
      # 3. Environment Variables (hl.env)
      # -----------------------------------------------------------------------
      env = [
        { _args = [ "XCURSOR_SIZE" "24" ]; }
        { _args = [ "LIBVA_DRIVE_NAME" "nvidia" ]; }
        { _args = [ "XDG_SESSION_TYPE" "wayland" ]; }
        { _args = [ "GBM_BACKEND" "nvidia-drm" ]; }
        { _args = [ "WLR_NO_HARDWARE_CURSORS" "1" ]; }
        { _args = [ "WLR_DRM_DEVICES" "/dev/dri/card1:/dev/dri/card0" ]; }
      ];

      # -----------------------------------------------------------------------
      # 4. Main Configuration (hl.config) - Strictly validates against Hyprland 0.55+ schema
      # -----------------------------------------------------------------------
      config = {
        input = {
          kb_layout = "us";
          repeat_delay = 300;
          repeat_rate = 50;
          follow_mouse = 1;
          sensitivity = 0;
          touchpad = {
            natural_scroll = false;
          };
        };

        cursor = {
          inactive_timeout = 3;
        };

        general = {
          gaps_in = 5;
          gaps_out = 10;
          border_size = 2;
          col = {
            active_border = {
              colors = [ "rgba(33ccffee)" "rgba(00ff99ee)" ];
              angle = 45;
            };
            inactive_border = "rgba(595959aa)";
          };
          layout = "dwindle";
        };

        group = {
          groupbar = {
            font_size = 14;
            font_family = "SF Pro Display";
            col = {
              active = "rgba(33ccff00)";
              inactive = "rgba(59595900)";
            };
          };

          col = {
            border_active = {
              colors = [ "rgba(33ccffee)" "rgba(00ff99ee)" ];
              angle = 45;
            };
            border_inactive = "rgba(595959aa)";
          };
        };

        misc = {
          disable_hyprland_logo = true;
          disable_splash_rendering = true;
        };

        decoration = {
          rounding = 10;

          blur = {
            enabled = false;
            size = 3;
            passes = 1;
          };

          shadow = {
            enabled = false;
            range = 4;
            render_power = 3;
            color = "rgba(1a1a1aee)";
          };
        };

        animations = {
          enabled = true;
        };

        dwindle = {
          preserve_split = true;
        };

        master = {
          new_status = "master";
        };
      };

      # -----------------------------------------------------------------------
      # 5. Curves & Animations (hl.curve & hl.animation)
      # -----------------------------------------------------------------------
      curve = [
        {
          _args = [
            "myBezier"
            {
              type = "bezier";
              points = [ [ 0.05 0.9 ] [ 0.1 1.05 ] ];
            }
          ];
        }
      ];

      animation = [
        { leaf = "windows"; enabled = true; speed = 7; bezier = "myBezier"; }
        { leaf = "windowsOut"; enabled = true; speed = 7; bezier = "default"; style = "popin 80%"; }
        { leaf = "border"; enabled = true; speed = 10; bezier = "default"; }
        { leaf = "borderangle"; enabled = true; speed = 8; bezier = "default"; }
        { leaf = "fade"; enabled = true; speed = 7; bezier = "default"; }
        { leaf = "workspaces"; enabled = true; speed = 6; bezier = "default"; }
      ];

      # -----------------------------------------------------------------------
      # 6. Autostart Daemons & Apps (hl.on)
      # -----------------------------------------------------------------------
      on = [
        {
          _args = [
            "hyprland.start"
            (mkLua ''function()
              hl.exec_cmd("waybar")
              hl.exec_cmd("hyprpaper")
              hl.exec_cmd("swayidle -w")
              hl.exec_cmd("swaync")
              hl.exec_cmd("/usr/lib/polkit-gnome/polkit-gnome-authentication-agent-1")
              hl.exec_cmd("hyprlock")
            end'')
          ];
        }
      ];

      # -----------------------------------------------------------------------
      # 7. Keybindings (hl.bind)
      # -----------------------------------------------------------------------
      bind = [
        # Launchers & Window Controls
        { _args = [ (mkLua "mainMod .. \" + Q\"") (mkLua "hl.dsp.exec_cmd(terminal)") ]; }
        { _args = [ (mkLua "mainMod .. \" + C\"") (mkLua "hl.dsp.window.close()") ]; }
        { _args = [ (mkLua "mainMod .. \" + N\"") (mkLua "hl.dsp.exec_cmd(\"swaync-client -t -sw\")") ]; }
        { _args = [ (mkLua "mainMod .. \" + V\"") (mkLua "hl.dsp.window.float({ action = \"toggle\" })") ]; }
        { _args = [ (mkLua "mainMod .. \" + R\"") (mkLua "hl.dsp.exec_cmd(\"rofi -show combi -show-icons\")") ]; }
        { _args = [ (mkLua "mainMod .. \" + G\"") (mkLua "hl.dsp.group.toggle()") ]; }
        { _args = [ (mkLua "mainMod .. \" + F\"") (mkLua "hl.dsp.window.fullscreen({ fullscreen = 0 })") ]; }

        # Move focus with mainMod + vim
        { _args = [ (mkLua "mainMod .. \" + h\"") (mkLua "hl.dsp.focus({ direction = \"left\" })") ]; }
        { _args = [ (mkLua "mainMod .. \" + l\"") (mkLua "hl.dsp.focus({ direction = \"right\" })") ]; }
        { _args = [ (mkLua "mainMod .. \" + k\"") (mkLua "hl.dsp.focus({ direction = \"up\" })") ]; }
        { _args = [ (mkLua "mainMod .. \" + j\"") (mkLua "hl.dsp.focus({ direction = \"down\" })") ]; }

        # Move focus within a grouped page
        { _args = [ (mkLua "mainMod .. \" + e\"") (mkLua "hl.dsp.group.next()") ]; }
        { _args = [ (mkLua "mainMod .. \" + d\"") (mkLua "hl.dsp.group.prev()") ]; }

        # Move window or group with vim keys
        { _args = [ (mkLua "mainMod .. \" + SHIFT + h\"") (mkLua "hl.dsp.window.move({ direction = \"left\" })") ]; }
        { _args = [ (mkLua "mainMod .. \" + SHIFT + l\"") (mkLua "hl.dsp.window.move({ direction = \"right\" })") ]; }
        { _args = [ (mkLua "mainMod .. \" + SHIFT + k\"") (mkLua "hl.dsp.window.move({ direction = \"up\" })") ]; }
        { _args = [ (mkLua "mainMod .. \" + SHIFT + j\"") (mkLua "hl.dsp.window.move({ direction = \"down\" })") ]; }

        # Scroll through existing workspaces with mainMod + scroll
        { _args = [ (mkLua "mainMod .. \" + mouse_down\"") (mkLua "hl.dsp.focus({ workspace = \"e+1\" })") ]; }
        { _args = [ (mkLua "mainMod .. \" + mouse_up\"") (mkLua "hl.dsp.focus({ workspace = \"e-1\" })") ]; }

        # Lock shortcut
        { _args = [ (mkLua "mainMod .. \" + S\"") (mkLua "hl.dsp.exec_cmd(\"wlogout\")") ]; }

        # Quick access applications
        { _args = [ (mkLua "mainMod .. \" + b\"") (mkLua "hl.dsp.exec_cmd(browser)") ]; }
        { _args = [ (mkLua "mainMod .. \" + t\"") (mkLua "hl.dsp.exec_cmd(\"thunderbird\")") ]; }

        # Scratch workspace
        { _args = [ (mkLua "mainMod .. \" + RETURN\"") (mkLua "hl.dsp.workspace.toggle_special(\"scratch\")") ]; }
        { _args = [ (mkLua "mainMod .. \" + SHIFT + RETURN\"") (mkLua "hl.dsp.window.move({ workspace = \"special:scratch\" })") ]; }

        # Messaging workspace
        { _args = [ (mkLua "mainMod .. \" + M\"") (mkLua "hl.dsp.workspace.toggle_special(\"messaging\")") ]; }

        # Move/resize windows with mouse and dragging
        {
          _args = [
            (mkLua "mainMod .. \" + mouse:272\"")
            (mkLua "hl.dsp.window.drag()")
            { mouse = true; }
          ];
        }
        {
          _args = [
            (mkLua "mainMod .. \" + mouse:273\"")
            (mkLua "hl.dsp.window.resize()")
            { mouse = true; }
          ];
        }

        # Function Row Keys
        {
          _args = [
            "XF86AudioRaiseVolume"
            (mkLua "hl.dsp.exec_cmd(\"pactl -- set-sink-volume @DEFAULT_SINK@ +5%\")")
            { repeating = true; }
          ];
        }
        {
          _args = [
            "XF86AudioLowerVolume"
            (mkLua "hl.dsp.exec_cmd(\"pactl -- set-sink-volume @DEFAULT_SINK@ -5%\")")
            { repeating = true; locked = true; }
          ];
        }
        {
          _args = [
            "XF86AudioMute"
            (mkLua "hl.dsp.exec_cmd(\"pactl -- set-sink-mute @DEFAULT_SINK@ toggle\")")
            { repeating = true; locked = true; }
          ];
        }
        {
          _args = [
            "XF86MonBrightnessUp"
            (mkLua "hl.dsp.exec_cmd(\"brightnessctl -d acpi_video0 set 5%+\")")
            { repeating = true; locked = true; }
          ];
        }
        {
          _args = [
            "XF86MonBrightnessDown"
            (mkLua "hl.dsp.exec_cmd(\"brightnessctl -d acpi_video0 set 5%-\")")
            { repeating = true; locked = true; }
          ];
        }

        # Lid switch
        {
          _args = [
            "switch:off:Lid Switch"
            (mkLua "hl.dsp.exec_cmd(\"hyprctl keyword monitor \\\"eDP-2,3840x2160@144,0x0,2\\\"\")")
            { locked = true; }
          ];
        }
        {
          _args = [
            "switch:on:Lid Switch"
            (mkLua "hl.dsp.exec_cmd(\"hyprctl keyword monitor \\\"eDP-2, disable\\\"\")")
            { locked = true; }
          ];
        }
      ]
      # Workspace 1-9 switching and moving
      ++ (lib.concatMap (i: [
        {
          _args = [
            (mkLua "mainMod .. \" + ${toString i}\"")
            (mkLua "hl.dsp.focus({ workspace = ${toString i} })")
          ];
        }
        {
          _args = [
            (mkLua "mainMod .. \" + SHIFT + ${toString i}\"")
            (mkLua "hl.dsp.window.move({ workspace = ${toString i} })")
          ];
        }
      ]) (lib.range 1 9))
      # Workspace 10 switching and moving (mapped to key 0)
      ++ [
        {
          _args = [
            (mkLua "mainMod .. \" + 0\"")
            (mkLua "hl.dsp.focus({ workspace = 10 })")
          ];
        }
        {
          _args = [
            (mkLua "mainMod .. \" + SHIFT + 0\"")
            (mkLua "hl.dsp.window.move({ workspace = 10 })")
          ];
        }
      ];

      # -----------------------------------------------------------------------
      # 8. Workspace Rules (hl.workspace_rule)
      # -----------------------------------------------------------------------
      workspace_rule = [
        {
          workspace = "name:messaging";
          on_created_empty = "[] togglegroup";
        }
      ];

      # -----------------------------------------------------------------------
      # 9. Window Rules (hl.window_rule)
      # -----------------------------------------------------------------------
      window_rule = [
        {
          name = "signal-messaging";
          match = { class = "Signal"; };
          workspace = "special:messaging";
        }
        {
          name = "webcord-messaging";
          match = { class = "WebCord"; };
          workspace = "special:messaging";
        }
        {
          name = "ghidra-tile";
          match = { class = "ghidra-Ghidra"; };
          float = false;
        }
      ];
    };
  };
}