import { NextRequest, NextResponse } from 'next/server';
import { prisma } from '@/lib/prisma';
import { apiCache } from '@/lib/cache';

export async function GET(request: NextRequest) {
  try {
    const { searchParams } = new URL(request.url);
    const page = parseInt(searchParams.get('page') || '1');
    const limit = parseInt(searchParams.get('limit') || '50');
    const category = searchParams.get('category');
    const featured = searchParams.get('featured');
    const published = searchParams.get('published');
    const difficulty = searchParams.get('difficulty');
    const search = searchParams.get('search');

    // Create cache key based on parameters
    const cacheKey = `projects:${page}:${limit}:${category || 'all'}:${featured || 'all'}:${published || 'all'}:${difficulty || 'all'}:${search || 'all'}`;
    
    // Check cache first
    const cached = await apiCache.getProjects();
    if (cached && !search) { // Don't cache search results
      return NextResponse.json(cached);
    }

    const skip = (page - 1) * limit;

    const where: any = {};
    
    if (category) where.category = category;
    if (featured !== null) where.featured = featured === 'true';
    if (published !== null) where.published = published === 'true';
    if (difficulty) where.difficulty = difficulty;
    
    if (search) {
      where.OR = [
        { title: { contains: search, mode: 'insensitive' } },
        { description: { contains: search, mode: 'insensitive' } },
        { tags: { hasSome: [search] } },
        { content: { contains: search, mode: 'insensitive' } }
      ];
    }

    const [projects, total] = await Promise.all([
      prisma.project.findMany({
        where,
        orderBy: { createdAt: 'desc' },
        skip,
        take: limit
      }),
      prisma.project.count({ where })
    ]);

    const result = {
      projects,
      total,
      pages: Math.ceil(total / limit),
      currentPage: page
    };

    // Cache the result (only for non-search queries)
    if (!search) {
      await apiCache.setProjects(result);
    }

    return NextResponse.json(result);
  } catch (error) {
    console.error('Error fetching projects:', error);
    return NextResponse.json(
      { error: 'Failed to fetch projects' },
      { status: 500 }
    );
  }
}

export async function POST(request: NextRequest) {
  try {
    const data = await request.json();
    
    const project = await prisma.project.create({
      data: {
        ...data,
        performance: data.performance || { lighthouse: 90, bundleSize: '50KB', loadTime: '1.5s' },
        analytics: data.analytics || { views: 0, likes: 0, shares: 0 }
      }
    });

    // Invalidate cache
    await apiCache.invalidateAll();

    return NextResponse.json(project);
  } catch (error) {
    console.error('Error creating project:', error);
    return NextResponse.json(
      { error: 'Failed to create project' },
      { status: 500 }
    );
  }
}