{ config, pkgs, ... }:
let
  cacheWallpaper = "${config.home.homeDirectory}/.cache/current_wallpaper";
  clockFont = "JetBrains Mono";

  typewriter = pkgs.writeShellScript "hyprlock-typewriter" ''
    text="Welcome back"
    state_file="/tmp/hyprlock_typewriter"
    lock_pid="/tmp/hyprlock_pid"
    blink_file="/tmp/hyprlock_blink"

    # Get current hyprlock PID
    current_pid=$(pgrep -x hyprlock | head -1)

    # Reset if this is a new hyprlock session
    if [ -f "$lock_pid" ]; then
      old_pid=$(cat "$lock_pid")
      if [ "$current_pid" != "$old_pid" ]; then
        rm -f "$state_file" "$blink_file"
        echo "$current_pid" > "$lock_pid"
      fi
    else
      echo "$current_pid" > "$lock_pid"
    fi

    # Initialize position
    if [ ! -f "$state_file" ]; then
      echo 0 > "$state_file"
    fi

    pos=$(cat "$state_file")
    len=''${#text}

    # Increment position only if not complete
    if [ "$pos" -lt "$len" ]; then
      pos=$((pos + 1))
      echo "$pos" > "$state_file"
      echo "''${text:0:$pos}_"
    else
      # Blink cursor via foreground color toggle
      if [ ! -f "$blink_file" ]; then
        echo 0 > "$blink_file"
      fi
      blink=$(cat "$blink_file")
      if [ "$blink" -eq 0 ]; then
        echo 1 > "$blink_file"
        echo "''${text}_"
      else
        echo 0 > "$blink_file"
        echo "''${text}<span fgalpha=\"1\">_</span>"
      fi
    fi
  '';
in {
  programs.hyprlock = {
    enable = true;
    extraConfig = ''
      source = ~/.config/hypr/hyprlock-colors.conf

      general {
        hide_cursor = true
        grace = 0
      }

      background {
        monitor =
        path = ${cacheWallpaper}
        blur_passes = 3
        blur_size = 8
        contrast = 0.9
        brightness = 0.7
        vibrancy = 0.2
      }

      # Typewriter greeting (above clock)
      label {
        monitor =
        text = cmd[update:120] ${typewriter}
        color = $on_surface_variant
        font_size = 24
        font_family = ${clockFont}
        position = 0, 200
        halign = center
        valign = center
      }

      # Hours (top)
      label {
        monitor =
        text = cmd[update:1000] date +%H
        color = $on_surface
        font_size = 140
        font_family = ${clockFont} Bold
        position = 0, 80
        halign = center
        valign = center
      }

      # Minutes (bottom)
      label {
        monitor =
        text = cmd[update:1000] date +%M
        color = $primary
        font_size = 140
        font_family = ${clockFont} Bold
        position = 0, -80
        halign = center
        valign = center
      }

      # Date
      label {
        monitor =
        text = cmd[update:60000] date '+%A, %B %d'
        color = $on_surface_variant
        font_size = 18
        font_family = ${clockFont}
        position = 0, -320
        halign = center
        valign = center
      }

      # Caps Lock indicator (above input)
      label {
        monitor =
        text = cmd[update:100] cat /sys/class/leds/*capslock*/brightness 2>/dev/null | grep -q 1 && echo 'CAPS LOCK'
        color = $tertiary
        font_size = 12
        font_family = ${clockFont}
        position = 0, -210
        halign = center
        valign = center
      }

      input-field {
        monitor =
        size = 300, 50
        outline_thickness = 3
        dots_size = 0.33
        dots_spacing = 0.15
        dots_center = true
        outer_color = $primary
        inner_color = $surface
        font_color = $on_surface
        fade_on_empty = false
        placeholder_text = <i>Password...</i>
        hide_input = false
        rounding = 15
        position = 0, -250
        halign = center
        valign = center

        # Auth feedback
        check_color = $secondary
        fail_color = $error
        fail_text = <i>$FAIL</i> <b>($ATTEMPTS)</b>
        fail_timeout = 2000
        fail_transition = 300
      }
    '';
  };
}