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

async function main() {
  const prisma = new PrismaClient();
  // Find all single elimination stages
  const singleElimStages = await prisma.tournamentStage.findMany({ where: { type: 'SINGLE_ELIM' } });
  if (!singleElimStages.length) {
    console.log('No single elimination stages found.');
    await prisma.$disconnect();
    return;
  }
  let totalDeletedMatches = 0;
  let totalDeletedResults = 0;
  for (const stage of singleElimStages) {
    // Find all matches for this stage
    const matches = await prisma.match.findMany({ where: { stageId: stage.id } });
    const matchIds = matches.map(m => m.id);
    // Delete all results for these matches
    const deletedResults = await prisma.result.deleteMany({ where: { matchId: { in: matchIds } } });
    // Delete all matches for this stage
    const deletedMatches = await prisma.match.deleteMany({ where: { stageId: stage.id } });
    // Delete the stage itself
    await prisma.tournamentStage.delete({ where: { id: stage.id } });
    totalDeletedMatches += deletedMatches.count;
    totalDeletedResults += deletedResults.count;
  }
  console.log(`Deleted ${singleElimStages.length} SINGLE_ELIM stages, ${totalDeletedMatches} matches, and ${totalDeletedResults} results.`);
  await prisma.$disconnect();
}

main().catch(e => { console.error(e); process.exit(1); });