#!/usr/bin/env node

require('../../api/node_modules/reflect-metadata');

const { PrismaService } = require('../../api/dist/prisma/prisma.service');
const { SignatureRetirementService } = require('../../api/dist/signature-retirement/signature-retirement.service');

const DAY_MS = 86_400_000;
const DATE_PATTERN = /^\d{4}-\d{2}-\d{2}$/;

function parseDateKey(value, name) {
  if (!DATE_PATTERN.test(value || '')) throw new Error(`${name} must use YYYY-MM-DD`);
  const date = new Date(`${value}T00:00:00.000Z`);
  if (Number.isNaN(date.getTime()) || date.toISOString().slice(0, 10) !== value) throw new Error(`${name} is invalid`);
  return date;
}

function dateKey(date) {
  return date.toISOString().slice(0, 10);
}

async function main() {
  const [fromValue, toValue] = process.argv.slice(2);
  const from = parseDateKey(fromValue, 'from');
  const to = parseDateKey(toValue, 'to');
  const days = Math.round((to.getTime() - from.getTime()) / DAY_MS) + 1;
  if (days < 1 || days > 31) throw new Error('date range must contain 1 to 31 days');

  const prisma = new PrismaService();
  const service = new SignatureRetirementService(prisma);
  await prisma.$connect();
  try {
    const before = await Promise.all([
      prisma.signatureRetirementMessage.count(),
      prisma.signatureRetirementWebhookDelivery.count(),
    ]);
    for (let offset = 0; offset < days; offset += 1) {
      const current = new Date(from.getTime() + offset * DAY_MS);
      const result = await service.runDetection(dateKey(current));
      process.stdout.write(`${dateKey(current)} ${JSON.stringify(result)}\n`);
    }
    const after = await Promise.all([
      prisma.signatureRetirementMessage.count(),
      prisma.signatureRetirementWebhookDelivery.count(),
    ]);
    if (before[0] !== after[0] || before[1] !== after[1]) {
      throw new Error(`notification side effect detected: messages ${before[0]} -> ${after[0]}, webhook deliveries ${before[1]} -> ${after[1]}`);
    }
    process.stdout.write(`notification side effects: none (messages=${after[0]}, webhookDeliveries=${after[1]})\n`);
  } finally {
    await prisma.$disconnect();
  }
}

main().catch((error) => {
  process.stderr.write(`${error.stack || error.message || error}\n`);
  process.exitCode = 1;
});