// Demo data for proof of concept
const demoData = [
  {
    prompt: "A futuristic cityscape at night with neon lights reflecting on wet streets, cyberpunk aesthetic, cinematic lighting, 8k resolution",
    image: "http://static.photos/cityscape/640x360/1",
    tags: ["cyberpunk", "futuristic", "night", "urban"]
  },
  {
    prompt: "Minimalist interior design with clean lines, natural light, Scandinavian style, wooden furniture, plants, soft textures",
    image: "http://static.photos/interior/640x360/2",
    tags: ["minimalist", "scandinavian", "interior", "natural"]
  },
  {
    prompt: "Abstract geometric patterns with vibrant colors, digital art, fractal designs, high detail, symmetrical composition",
    image: "http://static.photos/abstract/640x360/3",
    tags: ["abstract", "geometric", "digital", "vibrant"]
  },
  {
    prompt: "Steampunk airship flying over Victorian-era city, brass and copper details, mechanical wings, cloudy sky, detailed machinery",
    image: "http://static.photos/technology/640x360/4",
    tags: ["steampunk", "victorian", "airship", "mechanical"]
  },
  {
    prompt: "Underwater coral reef with bioluminescent creatures, deep sea colors, mysterious atmosphere, high detail, 4k resolution",
    image: "http://static.photos/nature/640x360/5",
    tags: ["underwater", "bioluminescent", "nature", "mysterious"]
  },
  {
    prompt: "Space station orbiting a gas giant planet, futuristic architecture, stars in background, cinematic composition, NASA aesthetic",
    image: "http://static.photos/space/640x360/6",
    tags: ["space", "futuristic", "cinematic", "science"]
  },
  {
    prompt: "Vintage film noir scene with detective in trench coat, rainy street, neon signs, dramatic shadows, black and white with selective color",
    image: "http://static.photos/cityscape/640x360/7",
    tags: ["noir", "vintage", "detective", "dramatic"]
  },
  {
    prompt: "Fantasy forest with glowing mushrooms, magical creatures, ethereal lighting, detailed environment, concept art style",
    image: "http://static.photos/nature/640x360/8",
    tags: ["fantasy", "magical", "forest", "ethereal"]
  },
  {
    prompt: "Industrial robot arm assembling circuit boards, factory setting, metallic textures, sparks, high-tech machinery, detailed mechanics",
    image: "http://static.photos/technology/640x360/9",
    tags: ["industrial", "robotic", "technology", "mechanical"]
  }
];

let allTags = [];
let currentFilter = '';
let filteredData = [...demoData];

// Initialize the page
document.addEventListener('DOMContentLoaded', () => {
  // Extract all unique tags
  demoData.forEach(item => {
    item.tags.forEach(tag => {
      if (!allTags.includes(tag)) {
        allTags.push(tag);
      }
    });
  });
  
  renderTagFilters();
  renderPromptCards();
  
  // Set up dark mode toggle
  const toggleButton = document.getElementById('toggleDarkMode');
  toggleButton.addEventListener('click', () => {
    document.documentElement.classList.toggle('dark');
    localStorage.setItem('darkMode', document.documentElement.classList.contains('dark'));
    feather.replace();
  });
  
  // Check for saved dark mode preference
  if (localStorage.getItem('darkMode') === 'true') {
    document.documentElement.classList.add('dark');
  }
  
  // Add grid overlay
  const gridOverlay = document.createElement('div');
  gridOverlay.className = 'grid-overlay';
  document.body.appendChild(gridOverlay);
});

// Render tag filter chips
function renderTagFilters() {
  const container = document.getElementById('tagFilters');
  container.innerHTML = '<button class="tag px-3 py-1 bg-gray-200 dark:bg-gray-700 rounded-full text-sm hover:bg-gray-300 dark:hover:bg-gray-600 transition-colors" data-tag="">All</button>';
  
  allTags.forEach(tag => {
    const tagButton = document.createElement('button');
    tagButton.className = 'tag px-3 py-1 bg-gray-200 dark:bg-gray-700 rounded-full text-sm hover:bg-gray-300 dark:hover:bg-gray-600 transition-colors';
    tagButton.textContent = tag;
    tagButton.dataset.tag = tag;
    tagButton.addEventListener('click', () => {
      document.querySelectorAll('.tag').forEach(btn => btn.classList.remove('bg-blue-500', 'dark:bg-blue-600', 'text-white'));
      tagButton.classList.add('bg-blue-500', 'dark:bg-blue-600', 'text-white');
      currentFilter = tag;
      filterPrompts();
    });
    container.appendChild(tagButton);
  });
}

// Render prompt cards
function renderPromptCards() {
  const container = document.getElementById('promptGrid');
  container.innerHTML = '';
  
  filteredData.forEach(item => {
    const card = document.createElement('div');
    card.className = 'prompt-card bg-white dark:bg-gray-800 rounded-xl overflow-hidden shadow-md hover:shadow-xl transition-shadow duration-300';
    card.innerHTML = `
      <div class="relative">
        <img src="${item.image}" alt="AI-generated image" class="w-full h-48 object-cover">
        <div class="prompt-overlay absolute inset-0 flex items-center justify-center opacity-0 hover:opacity-100 p-4">
          <p class="text-white text-center text-sm">${item.prompt}</p>
        </div>
        <div class="absolute top-2 right-2">
          <button class="copy-btn bg-white dark:bg-gray-700 p-2 rounded-full shadow-md" data-prompt="${item.prompt.replace(/"/g, '&quot;')}">
            <i data-feather="copy" class="w-4 h-4"></i>
          </button>
        </div>
      </div>
      <div class="p-4">
        <div class="flex flex-wrap gap-2 mb-3">
          ${item.tags.map(tag => `<span class="px-2 py-1 bg-gray-100 dark:bg-gray-700 text-xs rounded">${tag}</span>`).join('')}
        </div>
        <button class="copy-btn w-full py-2 bg-gray-100 dark:bg-gray-700 rounded-lg text-sm flex items-center justify-center gap-2 hover:bg-gray-200 dark:hover:bg-gray-600 transition-colors" data-prompt="${item.prompt.replace(/"/g, '&quot;')}">
          <i data-feather="copy" class="w-4 h-4"></i>
          Copy Prompt
        </button>
      </div>
    `;
    container.appendChild(card);
  });
  
  // Initialize feather icons
  feather.replace();
  
  // Add event listeners to copy buttons
  document.querySelectorAll('.copy-btn').forEach(button => {
    button.addEventListener('click', (e) => {
      const prompt = e.currentTarget.dataset.prompt;
      navigator.clipboard.writeText(prompt).then(() => {
        // Show feedback
        const originalHTML = e.currentTarget.innerHTML;
        e.currentTarget.innerHTML = '<i data-feather="check" class="w-4 h-4"></i> Copied!';
        feather.replace();
        
        setTimeout(() => {
          e.currentTarget.innerHTML = originalHTML;
          feather.replace();
        }, 2000);
      });
    });
  });
}

// Filter prompts based on current filter
function filterPrompts() {
  if (currentFilter === '') {
    filteredData = [...demoData];
  } else {
    filteredData = demoData.filter(item => 
      item.tags.includes(currentFilter)
    );
  }
  
  renderPromptCards();
}

// Search functionality (to be implemented with real search bar)
function searchPrompts(query) {
  if (!query) {
    filteredData = currentFilter ? demoData.filter(item => item.tags.includes(currentFilter)) : [...demoData];
  } else {
    const lowerQuery = query.toLowerCase();
    filteredData = demoData.filter(item => 
      item.prompt.toLowerCase().includes(lowerQuery) || 
      item.tags.some(tag => tag.toLowerCase().includes(lowerQuery))
    );
    
    // If we have a tag filter, apply it as well
    if (currentFilter) {
      filteredData = filteredData.filter(item => item.tags.includes(currentFilter));
    }
  }
  
  renderPromptCards();
}