# Hyprland — fully driven by config.nomarchy.theme (theme-state.json).
# Gaps, borders and colors are baked from the JSON at eval time; theme
# changes arrive via `home-manager switch`.
{ config, lib, ... }:

let
  t = config.nomarchy.theme;
  c = t.colors;
  inherit (config.nomarchy.lib) rgb rgba;

  # SUPER+1..9 / SUPER+SHIFT+1..9 workspace binds, generated.
  workspaceBinds = builtins.concatLists (builtins.genList
    (i:
      let ws = toString (i + 1);
      in [
        "$mod, ${ws}, workspace, ${ws}"
        "$mod SHIFT, ${ws}, movetoworkspace, ${ws}"
      ])
    9);
in
{
  wayland.windowManager.hyprland = lib.mkIf config.nomarchy.hyprland.enable {
    enable = true;
    # The binary and portal come from the NixOS module
    # (programs.hyprland.enable); HM only manages configuration.
    package = null;
    portalPackage = null;

    # HM defaults stateVersion >= 26.05 to the new Lua config and would
    # render these hyprlang-style settings as broken `hl.$mod(...)` Lua
    # (Hyprland then boots into emergency mode with no binds).
    configType = "hyprlang";

    settings = {
      "$mod" = "SUPER";
      "$terminal" = config.nomarchy.terminal;

      monitor = [ ",preferred,auto,1" ];

      exec-once = [
        # nixpkgs' swww is awww (renamed fork); the binary is awww-daemon.
        "awww-daemon"
        # Paint the wallpaper as soon as the session is up (waits for
        # the daemon internally).
        "nomarchy-theme-sync wallpaper"
      ];

      # ── Theme-driven look ──────────────────────────────────────────
      general = {
        gaps_in = t.ui.gapsIn;
        gaps_out = t.ui.gapsOut;
        border_size = t.ui.borderSize;
        "col.active_border" = "${rgb c.accent} ${rgb c.accentAlt} 45deg";
        "col.inactive_border" = rgb c.overlay;
        layout = "dwindle";
        resize_on_border = true;
      };

      decoration = {
        rounding = t.ui.rounding;
        active_opacity = t.ui.activeOpacity;
        inactive_opacity = t.ui.inactiveOpacity;
        blur = {
          enabled = t.ui.blur;
          size = 8;
          passes = 2;
          popups = true;
        };
        shadow = {
          enabled = t.ui.shadow;
          range = 20;
          render_power = 3;
          color = rgba c.mantle "aa";
        };
      };

      animations = {
        enabled = true;
        bezier = [
          "smooth, 0.25, 0.1, 0.25, 1.0"
          "snappy, 0.6, 0.0, 0.1, 1.0"
        ];
        animation = [
          "windows, 1, 4, snappy, popin 85%"
          "border, 1, 8, smooth"
          "fade, 1, 5, smooth"
          "workspaces, 1, 4, snappy, slidefade 15%"
        ];
      };

      # ── Behaviour ──────────────────────────────────────────────────
      input = {
        kb_layout = "us";
        follow_mouse = 1;
        touchpad.natural_scroll = true;
      };

      # dwindle:pseudotile was removed in Hyprland 0.55 (the `pseudo`
      # dispatcher still exists); setting it aborts config parsing.
      dwindle.preserve_split = true;

      # Hyprland 0.51+ replaced gestures:workspace_swipe with the
      # gesture keyword — without this, touchpads have NO gestures.
      gesture = [
        "3, horizontal, workspace"
        "4, pinch, fullscreen"
      ];

      misc = {
        disable_hyprland_logo = true;
        disable_splash_rendering = true;
        force_default_wallpaper = 0;
      };

      bind = [
        "$mod, Return, exec, $terminal"
        "$mod, D, exec, fuzzel"
        "$mod, Q, killactive"
        "$mod, F, fullscreen"
        "$mod, V, togglefloating"
        "$mod SHIFT, E, exit"

        # Theme picker: fuzzel menu over the presets; apply writes the
        # state and runs home-manager switch (progress via notify-send).
        "$mod, T, exec, nomarchy-theme-sync apply \"$(nomarchy-theme-sync list | fuzzel --dmenu --prompt 'theme> ')\""
        # Cycle the current theme's wallpapers (instant, no rebuild).
        "$mod SHIFT, T, exec, nomarchy-theme-sync bg next"

        # Focus
        "$mod, H, movefocus, l"
        "$mod, L, movefocus, r"
        "$mod, K, movefocus, u"
        "$mod, J, movefocus, d"

        # Screenshot region to clipboard
        ", Print, exec, grim -g \"$(slurp)\" - | wl-copy"
      ] ++ workspaceBinds;

      # Media keys: wpctl talks to wireplumber directly (no
      # pipewire-pulse shim like pamixer); e = repeat, l = also on a
      # locked screen — the standard flags for hardware keys.
      bindel = [
        ", XF86AudioRaiseVolume, exec, wpctl set-volume -l 1.5 @DEFAULT_AUDIO_SINK@ 5%+"
        ", XF86AudioLowerVolume, exec, wpctl set-volume @DEFAULT_AUDIO_SINK@ 5%-"
        ", XF86MonBrightnessUp, exec, brightnessctl set +5%"
        ", XF86MonBrightnessDown, exec, brightnessctl set 5%-"
      ];

      bindl = [
        ", XF86AudioMute, exec, wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle"
        ", XF86AudioMicMute, exec, wpctl set-mute @DEFAULT_AUDIO_SOURCE@ toggle"
        ", XF86AudioPlay, exec, playerctl play-pause"
        ", XF86AudioPause, exec, playerctl play-pause"
        ", XF86AudioNext, exec, playerctl next"
        ", XF86AudioPrev, exec, playerctl previous"
      ];

      bindm = [
        "$mod, mouse:272, movewindow"
        "$mod, mouse:273, resizewindow"
      ];
    };
  };
}