const { PrismaClient } = require('../generated/prisma');
const fetch = require('node-fetch');

const prisma = new PrismaClient();

// Generate SVG logo based on team name
function generateSVGLogo(teamName, size = 40) {
  let hash = 0;
  for (let i = 0; i < teamName.length; i++) {
    hash = teamName.charCodeAt(i) + ((hash << 5) - hash);
  }
  
  const hue = Math.abs(hash) % 360;
  const saturation = 60 + (Math.abs(hash) % 30);
  const lightness = 40 + (Math.abs(hash) % 30);
  const color = `hsl(${hue}, ${saturation}%, ${lightness}%)`;
  
  const secondaryHue = (hue + 180) % 360;
  const secondaryColor = `hsl(${secondaryHue}, ${saturation}%, ${lightness}%)`;
  
  const pattern = Math.abs(hash) % 4;
  const initials = teamName.split(' ').map(w => w[0]).join('').toUpperCase().slice(0, 2);
  
  let svgContent = '';
  
  switch (pattern) {
    case 0: // Circle with initials
      svgContent = `<svg width="${size}" height="${size}" viewBox="0 0 ${size} ${size}"><circle cx="${size/2}" cy="${size/2}" r="${size/2}" fill="${color}" stroke="${secondaryColor}" stroke-width="2"/><text x="50%" y="55%" text-anchor="middle" font-size="${size/3}" fill="white" font-family="Arial, sans-serif" font-weight="bold">${initials}</text></svg>`;
      break;
    case 1: // Square with diagonal
      svgContent = `<svg width="${size}" height="${size}" viewBox="0 0 ${size} ${size}"><rect x="2" y="2" width="${size-4}" height="${size-4}" fill="${color}" stroke="${secondaryColor}" stroke-width="2"/><line x1="0" y1="0" x2="${size}" y2="${size}" stroke="${secondaryColor}" stroke-width="3"/><text x="50%" y="55%" text-anchor="middle" font-size="${size/3}" fill="white" font-family="Arial, sans-serif" font-weight="bold">${initials}</text></svg>`;
      break;
    case 2: // Triangle
      svgContent = `<svg width="${size}" height="${size}" viewBox="0 0 ${size} ${size}"><polygon points="${size/2},5 ${size-5},${size-5} 5,${size-5}" fill="${color}" stroke="${secondaryColor}" stroke-width="2"/><text x="50%" y="60%" text-anchor="middle" font-size="${size/3}" fill="white" font-family="Arial, sans-serif" font-weight="bold">${initials}</text></svg>`;
      break;
    case 3: // Diamond
      svgContent = `<svg width="${size}" height="${size}" viewBox="0 0 ${size} ${size}"><polygon points="${size/2},5 ${size-5},${size/2} ${size/2},${size-5} 5,${size/2}" fill="${color}" stroke="${secondaryColor}" stroke-width="2"/><text x="50%" y="55%" text-anchor="middle" font-size="${size/3}" fill="white" font-family="Arial, sans-serif" font-weight="bold">${initials}</text></svg>`;
      break;
  }
  
  return svgContent;
}

async function resetTournament() {
  try {
    console.log('🗑️  Deleting all existing data...');
    
    // Delete all data in the correct order (due to foreign key constraints)
    await prisma.result.deleteMany();
    await prisma.match.deleteMany();
    await prisma.tournamentStage.deleteMany();
    await prisma.tournament.deleteMany();
    await prisma.team.deleteMany();
    
    console.log('✅ All existing data deleted');
    
    // Create new tournament
    console.log('🏆 Creating new tournament...');
    const tournament = await prisma.tournament.create({
      data: {
        name: 'Championship Tournament',
        date: new Date(),
        location: 'Main Arena'
      }
    });
    console.log(`✅ Tournament created: ${tournament.name}`);
    
    // Create 15 teams
    console.log('👥 Creating 15 teams...');
    const teamNames = [
      'Alpha', 'Beta', 'Gamma', 'Delta', 'Epsilon', 'Zeta', 'Eta', 'Theta', 'Iota', 'Kappa',
      'Lambda', 'Mu', 'Nu', 'Xi', 'Omicron'
    ];
    
    const teams = [];
    for (let i = 0; i < 15; i++) {
      const teamName = `Team ${teamNames[i]}`;
      const team = await prisma.team.create({
        data: {
          name: teamName,
          logo: generateSVGLogo(teamName)
        }
      });
      teams.push(team);
      console.log(`✅ Created ${team.name} with SVG logo`);
    }
    
    console.log(`\n🎉 Tournament reset complete!`);
    console.log(`📊 Tournament: ${tournament.name}`);
    console.log(`👥 Teams: ${teams.length}`);
    console.log(`📅 Date: ${tournament.date.toLocaleDateString()}`);
    console.log(`📍 Location: ${tournament.location}`);
    
  } catch (err) {
    console.error('❌ Error resetting tournament:', err);
  } finally {
    await prisma.$disconnect();
  }
}

resetTournament();