<template>
  <div class="flex items-center gap-4">
    <!-- Dark Mode Toggle -->
    <label class="swap swap-rotate">
      <input
        type="checkbox"
        class="theme-controller"
        :checked="themeStore.isDark"
        @change="themeStore.toggleDarkMode()"
      >

      <!-- Sun icon -->
      <svg 
        class="swap-off fill-current w-6 h-6" 
        xmlns="http://www.w3.org/2000/svg" 
        viewBox="0 0 24 24"
      >
        <path d="M5.64,17l-.71.71a1,1,0,0,0,0,1.41,1,1,0,0,0,1.41,0l.71-.71A1,1,0,0,0,5.64,17ZM5,12a1,1,0,0,0-1-1H3a1,1,0,0,0,0,2H4A1,1,0,0,0,5,12Zm7-7a1,1,0,0,0,1-1V3a1,1,0,0,0-2,0V4A1,1,0,0,0,12,5ZM5.64,7.05a1,1,0,0,0,.7.29,1,1,0,0,0,.71-.29,1,1,0,0,0,0-1.41l-.71-.71A1,1,0,0,0,4.93,6.34Zm12,.29a1,1,0,0,0,.7-.29l.71-.71a1,1,0,1,0-1.41-1.41L17,5.64a1,1,0,0,0,0,1.41A1,1,0,0,0,17.66,7.34ZM21,11H20a1,1,0,0,0,0,2h1a1,1,0,0,0,0-2Zm-9,8a1,1,0,0,0-1,1v1a1,1,0,0,0,2,0V20A1,1,0,0,0,12,19ZM18.36,17A1,1,0,0,0,17,18.36l.71.71a1,1,0,0,0,1.41,0,1,1,0,0,0,0-1.41ZM12,6.5A5.5,5.5,0,1,0,17.5,12,5.51,5.51,0,0,0,12,6.5Zm0,9A3.5,3.5,0,1,1,15.5,12,3.5,3.5,0,0,1,12,15.5Z" />
      </svg>

      <!-- Moon icon -->
      <svg 
        class="swap-on fill-current w-6 h-6" 
        xmlns="http://www.w3.org/2000/svg" 
        viewBox="0 0 24 24"
      >
        <path d="M21.64,13a1,1,0,0,0-1.05-.14,8.05,8.05,0,0,1-3.37.73A8.15,8.15,0,0,1,9.08,5.49a8.59,8.59,0,0,1,.25-2A1,1,0,0,0,8,2.36,10.14,10.14,0,1,0,22,14.05,1,1,0,0,0,21.64,13Zm-9.5,6.69A8.14,8.14,0,0,1,7.08,5.22v.27A10.15,10.15,0,0,0,17.22,15.63a9.79,9.79,0,0,0,2.1-.22A8.11,8.11,0,0,1,12.14,19.73Z" />
      </svg>
    </label>

    <!-- Palette Dropdown -->
    <div class="dropdown dropdown-end">
      <div 
        tabindex="0" 
        role="button" 
        class="btn btn-sm btn-outline flex items-center gap-2"
      >
        <div class="flex items-center gap-2">
          <div
            class="w-4 h-4 rounded-full border border-base-content/20"
            :style="{ backgroundColor: getPalettePreviewColor(themeStore.currentPalette, 'primary') }"
          />
          <span class="hidden sm:inline">{{ themeStore.currentPaletteName }}</span>
          <span class="sm:hidden">P{{ themeStore.currentPalette }}</span>
        </div>
        <svg 
          class="w-4 h-4" 
          fill="none" 
          stroke="currentColor" 
          viewBox="0 0 24 24"
        >
          <path 
            stroke-linecap="round" 
            stroke-linejoin="round" 
            stroke-width="2" 
            d="M19 9l-7 7-7-7" 
          />
        </svg>
      </div>

      <div 
        tabindex="0" 
        class="dropdown-content z-[1] card card-compact w-80 p-4 shadow-lg bg-base-100 border border-base-300"
      >
        <div class="card-body p-0">
          <h3 class="font-semibold text-sm text-base-content/70 mb-3">Choose Color Palette</h3>

          <div class="max-h-64 overflow-y-auto">
            <div class="space-y-1">
              <button
                v-for="paletteId in themeStore.availablePalettes"
                :key="`palette-${paletteId}`"
                :class="{
                  'bg-primary/10 border-primary': themeStore.currentPalette === paletteId,
                  'hover:bg-base-200': themeStore.currentPalette !== paletteId,
                }"
                class="w-full flex items-center justify-between p-3 rounded-lg border border-transparent transition-all duration-200"
                @click="themeStore.setPalette(paletteId)"
              >
                <div class="flex items-center gap-3">
                  <span class="text-xs font-mono text-base-content/50 w-6">
                    {{ paletteId.toString().padStart(2, '0') }}
                  </span>
                  <span class="text-sm font-medium">
                    {{ themeStore.paletteNames[paletteId] || `Palette ${paletteId}` }}
                  </span>
                </div>

                <div class="flex items-center gap-2">
                  <!-- Color preview circles with better spacing -->
                  <div
                    class="w-4 h-4 rounded-full border border-base-content/20"
                    :style="{ backgroundColor: getPalettePreviewColor(paletteId, 'primary') }"
                    title="Primary"
                  />
                  <div
                    class="w-4 h-4 rounded-full border border-base-content/20"
                    :style="{ backgroundColor: getPalettePreviewColor(paletteId, 'secondary') }"
                    title="Secondary"
                  />
                  <div
                    class="w-4 h-4 rounded-full border border-base-content/20"
                    :style="{ backgroundColor: getPalettePreviewColor(paletteId, 'accent') }"
                    title="Accent"
                  />

                  <!-- Checkmark for active palette -->
                  <div class="w-4 h-4 flex items-center justify-center ml-2">
                    <svg
                      v-if="themeStore.currentPalette === paletteId"
                      class="w-3 h-3 text-primary"
                      fill="currentColor"
                      viewBox="0 0 20 20"
                    >
                      <path 
                        fill-rule="evenodd" 
                        d="M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z" 
                        clip-rule="evenodd" 
                      />
                    </svg>
                  </div>
                </div>
              </button>
            </div>
          </div>

          <!-- Action buttons -->
          <div class="flex gap-2 pt-3 mt-3 border-t border-base-300">
            <button
              class="btn btn-ghost btn-sm flex-1 text-xs"
              @click="themeStore.resetToDefault()"
            >
              Reset
            </button>
            <button
              class="btn btn-ghost btn-sm flex-1 text-xs"
              @click="themeStore.setRandomPalette()"
            >
              Random
            </button>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup lang="ts">
import { onMounted } from 'vue';
import { useThemeStore } from '../stores/theme';

const themeStore = useThemeStore();

// Simple color preview function - you can enhance this based on your palette definitions
function getPalettePreviewColor(paletteId: number, colorType: 'primary' | 'secondary' | 'accent'): string {
  // This is a simplified preview - in a real implementation, you might want to
  // extract actual colors from your theme definitions
  const hueBase = (paletteId - 1) * 15; // Distribute hues across the color wheel

  const hues = {
    primary: hueBase,
    secondary: (hueBase + 60) % 360,
    accent: (hueBase + 120) % 360,
  };

  return `hsl(${hues[colorType]}, 70%, 50%)`;
}

// Initialize theme when component mounts
onMounted(() => {
  themeStore.initializeTheme();
});
</script>

<style scoped>
/* Custom dropdown styles for better desktop app feel */
.dropdown-content {
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Smooth transitions for theme changes */
.btn, .swap {
  transition: all 0.2s ease-in-out;
}

/* Custom scrollbar for the palette list */
.max-h-64::-webkit-scrollbar {
  width: 4px;
}

.max-h-64::-webkit-scrollbar-track {
  background: oklch(var(--color-base-200));
  border-radius: 2px;
}

.max-h-64::-webkit-scrollbar-thumb {
  background: oklch(var(--color-base-content) / 0.3);
  border-radius: 2px;
}

.max-h-64::-webkit-scrollbar-thumb:hover {
  background: oklch(var(--color-base-content) / 0.5);
}
</style>
