---
import Layout from '../../layouts/Layout.astro';
import { getCollection } from 'astro:content';

export async function getStaticPaths() {
  const posts = await getCollection('blog');
  return posts.map(post => ({
    params: { slug: post.id },
    props: { post },
  }));
}

const allPosts = await getCollection('blog');
const sortedPosts = allPosts.sort((a, b) => b.data.pubDate.valueOf() - a.data.pubDate.valueOf());

const categories = [...new Set(allPosts.map(post => post.data.category))];
const tags = [...new Set(allPosts.flatMap(post => post.data.tags))];

// Map blog slugs to feature images
const featureImages: Record<string, string> = {
  '5-ways-ai-increase-sales': '/images/blog/ai-sales-growth.jpg',
  'ai-content-google-love': '/images/blog/ai-content-seo.jpg',
  'ai-for-sme-thailand': '/images/blog/ai-sme-thailand.jpg',
  'back-office-automation': '/images/blog/office-automation.jpg',
  'chatbot-business-case-study': '/images/blog/chatbot-business.jpg',
  'data-driven-marketing': '/images/blog/data-marketing.jpg',
  'digital-transformation-guide': '/images/blog/digital-transformation.jpg',
  'marketing-automation-guide': '/images/blog/marketing-automation.jpg',
  'seo-2026-business-guide': '/images/blog/seo-guide.jpg',
  'website-2026-must-have': '/images/blog/website-2026.jpg',
};

const formatDate = (date: Date) => {
  return date.toLocaleDateString('th-TH', {
    year: 'numeric',
    month: 'long',
    day: 'numeric'
  });
};
---

<Layout 
  title="บล็อก | MoreMiniMore - ความรู้เกี่ยวกับ AI และการตลาดดิจิทัล"
  description="อ่านบทความและความรู้เกี่ยวกับ AI, Marketing Automation, SEO และ Digital Transformation สำหรับธุรกิจ SMEs ไทย"
>
  <!-- Hero Section - Yellow Theme (matching homepage) -->
  <section id="hero" class="reveal relative overflow-hidden min-h-[40vh] flex items-center">
    <!-- Animated Background - Yellow theme for Blog -->
    <div class="absolute inset-0 bg-gradient-to-br from-yellow-400 via-yellow-500 to-yellow-600">
      <!-- Floating Shapes -->
      <div class="absolute top-20 left-10 w-72 h-72 bg-white/20 rounded-full blur-3xl animate-float-1"></div>
      <div class="absolute bottom-20 right-10 w-96 h-96 bg-yellow-300/20 rounded-full blur-3xl animate-float-2"></div>
      <div class="absolute top-1/3 left-1/4 w-48 h-48 bg-white/10 rounded-full blur-2xl animate-float-3"></div>
      <div class="absolute bottom-1/3 right-1/4 w-64 h-64 bg-yellow-200/20 rounded-full blur-2xl animate-float-1" style="animation-delay: 1.5s;"></div>
    </div>
    
    <!-- Floating dots -->
    <div class="absolute inset-0 overflow-hidden pointer-events-none">
      <div class="absolute top-1/4 left-[10%] w-3 h-3 bg-white/20 rounded-full animate-float-dot-1"></div>
      <div class="absolute top-1/3 left-[80%] w-2 h-2 bg-white/20 rounded-full animate-float-dot-2"></div>
      <div class="absolute top-2/3 left-[20%] w-4 h-4 bg-white/20 rounded-full animate-float-dot-3"></div>
      <div class="absolute bottom-1/4 left-[70%] w-2 h-2 bg-white/20 rounded-full animate-float-dot-1" style="animation-delay: 2s;"></div>
    </div>
    
    <!-- Grid Pattern -->
    <div class="absolute inset-0 opacity-[0.03]" style="background-image: linear-gradient(white 1px, transparent 1px), linear-gradient(90deg, white 1px, transparent 1px); background-size: 50px 50px;"></div>
    
    <div class="container mx-auto px-4 relative z-10 py-16">
      <div class="max-w-4xl mx-auto text-center">
        <h1 class="text-4xl md:text-5xl lg:text-6xl font-bold mb-6 text-white leading-tight animate-fade-in-up">
          บล็อก & ความรู้
        </h1>
        <p class="text-lg md:text-xl text-white/80 max-w-2xl mx-auto animate-fade-in-up" style="animation-delay: 0.2s;">
          ความรู้เกี่ยวกับ AI, การตลาดดิจิทัล และการเปลี่ยนแปลงทางธุรกิจสำหรับ SMEs ไทย
        </p>
        
        <!-- Search Box -->
        <div class="max-w-2xl mx-auto mt-8 animate-fade-in-up" style="animation-delay: 0.4s;">
          <div class="relative">
            <input 
              type="text" 
              id="blog-search" 
              placeholder="ค้นหาบทความ..." 
              class="w-full px-6 py-4 pr-12 rounded-full border-2 border-white/30 bg-white/10 backdrop-blur-sm text-white placeholder-white/70 focus:border-white focus:outline-none text-lg"
            />
            <button class="absolute right-4 top-1/2 -translate-y-1/2 text-white/70 hover:text-white transition">
              <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z" />
              </svg>
            </button>
          </div>
        </div>
      </div>
    </div>
  </section>

  <!-- Category Filter -->
  <section class="reveal py-8 bg-white border-b shadow-sm">
    <div class="container mx-auto px-4">
      <div class="flex flex-wrap gap-3 justify-center" id="category-filters">
        <button 
          class="category-btn active px-5 py-2 rounded-full bg-yellow-500 text-white font-medium transition hover:bg-yellow-600"
          data-category="all"
        >
          ทั้งหมด
        </button>
        {categories.map(category => (
          <button 
            class="category-btn px-5 py-2 rounded-full bg-gray-100 text-gray-700 font-medium transition hover:bg-yellow-500 hover:text-white"
            data-category={category}
          >
            {category}
          </button>
        ))}
      </div>
    </div>
  </section>

  <!-- Blog Grid -->
  <section id="blog" class="reveal py-20 bg-gradient-to-b from-gray-50 to-white">
    <div class="container mx-auto px-4">
      <div class="grid md:grid-cols-2 lg:grid-cols-3 gap-8" id="blog-grid">
        {sortedPosts.map((post, index) => (
          <article 
            class="blog-card bg-white rounded-2xl overflow-hidden shadow-lg hover:shadow-2xl transition-all duration-500 group" 
            data-category={post.data.category} 
            data-tags={JSON.stringify(post.data.tags)}
            style={`animation-delay: ${index * 0.1}s`}
          >
            <!-- Feature Image -->
            <div class="relative h-48 overflow-hidden">
              <img 
                src={featureImages[post.id] || '/images/blog/ai-sales-growth.jpg'} 
                alt={post.data.title}
                class="w-full h-full object-cover transform group-hover:scale-110 transition-transform duration-500"
              />
              <!-- Overlay -->
              <div class="absolute inset-0 bg-gradient-to-t from-black/60 to-transparent opacity-0 group-hover:opacity-100 transition-opacity duration-300"></div>
              <!-- Category Badge -->
              <span class="absolute top-4 left-4 bg-yellow-500 text-white px-3 py-1 rounded-full text-sm font-medium">
                {post.data.category}
              </span>
            </div>
            
            <div class="p-6">
              <div class="flex items-center gap-2 mb-3">
                <span class="text-sm text-gray-600">{formatDate(post.data.pubDate)}</span>
              </div>
              <h2 class="text-xl font-bold mb-3 line-clamp-2 group-hover:text-yellow-600 transition-colors">
                <a href={`/blog/${post.id}`}>{post.data.title}</a>
              </h2>
              <p class="text-gray-700 mb-4 line-clamp-2">
                {post.data.description}
              </p>
              <div class="flex flex-wrap gap-2 mb-4">
                {post.data.tags.slice(0, 3).map(tag => (
                  <span class="text-xs bg-gray-100 px-2 py-1 rounded text-gray-700">#{tag}</span>
                ))}
              </div>
              <a href={`/blog/${post.id}`} class="text-yellow-600 font-medium hover:text-yellow-800 inline-flex items-center gap-2 group-hover:gap-3 transition-all">
                อ่านเพิ่มเติม →
              </a>
            </div>
          </article>
        ))}
      </div>
      
      <!-- No Results Message -->
      <div id="no-results" class="hidden text-center py-16">
        <svg class="w-16 h-16 mx-auto mb-4 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"></path>
        </svg>
        <h3 class="text-2xl font-bold mb-2">ไม่พบบทความที่ค้นหา</h3>
        <p class="text-gray-600">ลองค้นหาด้วยคำอื่นหรือเลือกหมวดหมู่อื่น</p>
      </div>
    </div>
  </section>

  <!-- Tags Cloud -->
  <section class="reveal py-12 bg-white">
    <div class="container mx-auto px-4 max-w-4xl">
      <h3 class="text-2xl font-bold mb-6 text-center">หัวข้อที่น่าสนใจ</h3>
      <div class="flex flex-wrap gap-3 justify-center">
        {tags.map(tag => (
          <a href={`/blog?tag=${tag}`} class="px-4 py-2 bg-gray-100 rounded-full text-gray-700 hover:bg-yellow-500 hover:text-white transition">
            #{tag}
          </a>
        ))}
      </div>
    </div>
  </section>

  <!-- CTA Section - Always Yellow -->
  <section id="cta" class="reveal py-20 bg-primary">
    <div class="container mx-auto px-4 text-center">
      <h2 class="text-3xl md:text-4xl font-bold mb-6 text-black">
        พร้อมเริ่มต้น Digital Transformation แล้วหรือยัง?
      </h2>
      <p class="text-xl mb-8 max-w-2xl mx-auto text-gray-800">
        ปรึกษาผู้เชี่ยวชาญของเราฟรี เราพร้อมช่วยคุณวางกลยุทธ์ที่เหมาะกับธุรกิจ
      </p>
      <div class="flex flex-col sm:flex-row gap-4 justify-center">
        <a href="/contact-us" class="bg-black text-primary px-8 py-4 rounded-full font-bold text-lg hover:bg-gray-900 transition-colors shadow-lg inline-flex items-center justify-center gap-2">
          <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 5a2 2 0 012-2h3.28a1 1 0 01.948.684l1.498 4.493a1 1 0 01-.502 1.21l-2.257 1.13a11.042 11.042 0 005.516 5.516l1.13-2.257a1 1 0 011.21-.502l4.493 1.498a1 1 0 01.684.949V19a2 2 0 01-2 2h-1C9.716 21 3 14.284 3 6V5z"></path>
          </svg>
          ติดต่อเรา
        </a>
        <a href="/web-development" class="bg-white text-black px-8 py-4 rounded-full font-bold text-lg hover:bg-gray-100 transition-colors shadow-lg inline-flex items-center justify-center gap-2">
          ดูบริการ
        </a>
      </div>
    </div>
  </section>
</Layout>

<script>
  // Category Filter
  const categoryBtns = document.querySelectorAll('.category-btn');
  const blogCards = document.querySelectorAll('.blog-card');
  const noResults = document.getElementById('no-results');
  const blogGrid = document.getElementById('blog-grid');
  
  categoryBtns.forEach(btn => {
    btn.addEventListener('click', () => {
      // Update active state
      categoryBtns.forEach(b => {
        b.classList.remove('active', 'bg-yellow-500', 'text-white');
        b.classList.add('bg-gray-100', 'text-gray-700');
      });
      btn.classList.add('active', 'bg-yellow-500', 'text-white');
      btn.classList.remove('bg-gray-100', 'text-gray-700');
      
      const category = btn.getAttribute('data-category');
      
      // Filter cards
      let visibleCount = 0;
      blogCards.forEach(card => {
        const cardCategory = card.getAttribute('data-category');
        if (category === 'all' || cardCategory === category) {
          (card as HTMLElement).style.display = 'block';
          (card as HTMLElement).style.animation = 'fadeInUp 0.5s ease forwards';
          visibleCount++;
        } else {
          (card as HTMLElement).style.display = 'none';
        }
      });
      
      // Show/hide no results message
      if (visibleCount === 0) {
        noResults?.classList.remove('hidden');
        blogGrid?.classList.add('hidden');
      } else {
        noResults?.classList.add('hidden');
        blogGrid?.classList.remove('hidden');
      }
    });
  });
  
  // Search Functionality
  const searchInput = document.getElementById('blog-search');
  searchInput?.addEventListener('input', (e) => {
    const searchTerm = (e.target as HTMLInputElement).value.toLowerCase();
    
    let visibleCount = 0;
    blogCards.forEach(card => {
      const title = card.querySelector('h2')?.textContent?.toLowerCase() || '';
      const description = card.querySelector('p')?.textContent?.toLowerCase() || '';
      const tags = card.getAttribute('data-tags')?.toLowerCase() || '';
      
      if (title.includes(searchTerm) || description.includes(searchTerm) || tags.includes(searchTerm)) {
        (card as HTMLElement).style.display = 'block';
        visibleCount++;
      } else {
        (card as HTMLElement).style.display = 'none';
      }
    });
    
    // Show/hide no results message
    if (visibleCount === 0) {
      noResults?.classList.remove('hidden');
      blogGrid?.classList.add('hidden');
    } else {
      noResults?.classList.add('hidden');
      blogGrid?.classList.remove('hidden');
    }
  });
  
  // URL parameter for tag filter
  const urlParams = new URLSearchParams(window.location.search);
  const tagParam = urlParams.get('tag');
  if (tagParam) {
    const searchInput = document.getElementById('blog-search') as HTMLInputElement;
    if (searchInput) {
      searchInput.value = tagParam;
      searchInput.dispatchEvent(new Event('input'));
    }
  }
</script>

<style>
  .line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  
  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
</style>