import { PrismaClient } from '@prisma/client';

const prisma = new PrismaClient();

function daysAgo(n:number) {
  const d = new Date();
  d.setUTCDate(d.getUTCDate() - n);
  d.setUTCHours(0,0,0,0);
  return d;
}

async function main() {
  const expenseCodes = await prisma.bankCodes.findMany({ where: { type: 'EXPENSE' }, select: { id: true } });
  if (!expenseCodes.length) throw new Error('Need EXPENSE bank codes');

  const timesheets = await prisma.timesheets.findMany({ select: { id: true } });
  if (!timesheets.length) {
    console.warn('No timesheets found; aborting expenses seed.');
    return;
  }

  // 5 expenses distribuées aléatoirement parmi les employés (via timesheets)
  for (let i = 0; i < 5; i++) {
    const ts = timesheets[Math.floor(Math.random() * timesheets.length)];
    const bc = expenseCodes[i % expenseCodes.length];
    await prisma.expenses.create({
      data: {
        timesheet_id: ts.id,
        bank_code_id: bc.id,
        date: daysAgo(3 + i),
        amount: (50 + i * 10).toFixed(2),
        attachement: null,
        description: `Expense #${i + 1}`,
        is_approved: Math.random() < 0.5,
        supervisor_comment: Math.random() < 0.3 ? 'OK' : null,
      },
    });
  }

  const total = await prisma.expenses.count();
  console.log(`✓ Expenses: ${total} total rows`);
}

main().finally(() => prisma.$disconnect());