const bcrypt = require('bcrypt');
const { PrismaClient } = require('@prisma/client');
const { v4: uuidv4 } = require('uuid');
const crypto = require('crypto');

const prisma = new PrismaClient();

// One line with itemCount units, priced so the tab adds up to about totalInCents
async function createTab(venueId, tab) {
  const lineId = uuidv4();
  const addedAt = tab.reportedAt.toISOString();
  await prisma.tab.create({
    data: {
      venueId,
      id: tab.tabId,
      customerName: tab.customerName,
      openedAt: tab.reportedAt,
      version: tab.version,
      lines: [{
        id: lineId,
        productId: null,
        productName: 'Pils',
        unitPriceInCents: Math.round(tab.totalInCents / tab.itemCount),
        units: Array.from({ length: tab.itemCount }, (_, i) => ({ id: `${lineId}:${i}`, addedAt, removedAt: null })),
      }],
    },
  });
}

async function main() {
  console.log('Seeding database...');

  await prisma.auditLog.deleteMany();
  await prisma.tabEvent.deleteMany();
  await prisma.tabReminder.deleteMany();
  await prisma.plannedTab.deleteMany();
  await prisma.remoteCommand.deleteMany();
  await prisma.settlement.deleteMany();
  await prisma.tab.deleteMany();
  await prisma.stockAdjustment.deleteMany();
  await prisma.product.deleteMany();
  await prisma.productImage.deleteMany();
  await prisma.refreshToken.deleteMany();
  await prisma.registrationCode.deleteMany();
  await prisma.device.deleteMany();
  await prisma.clientUser.deleteMany();
  await prisma.venue.deleteMany();
  console.log('Cleared existing data');

  const venueId = uuidv4();
  await prisma.venue.create({
    data: { id: venueId, name: 'KoolTap Demo Bar' },
  });
  console.log(`Created venue: KoolTap Demo Bar (${venueId})`);

  const adminHash = await bcrypt.hash('Admin123!', 10);
  await prisma.clientUser.create({
    data: {
      id: uuidv4(),
      venueId,
      email: 'admin@example.com',
      passwordHash: adminHash,
      name: 'Eigenaar',
      role: 'admin',
    },
  });
  console.log('Created admin user: admin@example.com / Admin123!');

  const viewerHash = await bcrypt.hash('Viewer123!', 10);
  await prisma.clientUser.create({
    data: {
      id: uuidv4(),
      venueId,
      email: 'viewer@example.com',
      passwordHash: viewerHash,
      name: 'Bartender',
      role: 'viewer',
    },
  });
  console.log('Created viewer user: viewer@example.com / Viewer123!');

  const device1Id = uuidv4();
  const device2Id = uuidv4();

  const token1 = 'dev_' + crypto.randomBytes(48).toString('base64url');
  const token2 = 'dev_' + crypto.randomBytes(48).toString('base64url');

  await prisma.device.create({
    data: {
      id: device1Id,
      venueId,
      name: 'Bar terminal 1',
      tokenHash: crypto.createHash('sha256').update(token1).digest('hex'),
      tokenPrefix: token1.substring(0, 8),
      tokenExpiresAt: new Date(Date.now() + 90 * 24 * 60 * 60 * 1000),
      lastSeenAt: new Date(Date.now() - 1 * 60 * 1000),
    },
  });

  await prisma.device.create({
    data: {
      id: device2Id,
      venueId,
      name: 'Bar terminal 2',
      tokenHash: crypto.createHash('sha256').update(token2).digest('hex'),
      tokenPrefix: token2.substring(0, 8),
      tokenExpiresAt: new Date(Date.now() + 90 * 24 * 60 * 60 * 1000),
      lastSeenAt: new Date(Date.now() - 15 * 60 * 1000),
    },
  });

  console.log(`Created device: Bar terminal 1 (${device1Id})`);
  console.log(`Created device: Bar terminal 2 (${device2Id})`);

  const tabsData = [
    { tabId: uuidv4(), customerName: 'Jan', version: 5, totalInCents: 2450, itemCount: 3, reportedAt: new Date(Date.now() - 2 * 60 * 1000) },
    { tabId: uuidv4(), customerName: 'Marie', version: 3, totalInCents: 1800, itemCount: 2, reportedAt: new Date(Date.now() - 5 * 60 * 1000) },
    { tabId: uuidv4(), customerName: 'Thomas', version: 7, totalInCents: 4200, itemCount: 5, reportedAt: new Date(Date.now() - 3 * 60 * 1000) },
    { tabId: uuidv4(), customerName: 'Lisa', version: 2, totalInCents: 900, itemCount: 1, reportedAt: new Date(Date.now() - 4 * 60 * 1000) },
  ];

  for (const tab of tabsData) {
    await createTab(venueId, tab);
  }

  const staleTabs = [
    { tabId: uuidv4(), customerName: 'Emma', version: 4, totalInCents: 3200, itemCount: 4, reportedAt: new Date(Date.now() - 16 * 60 * 1000) },
    { tabId: uuidv4(), customerName: 'David', version: 1, totalInCents: 1500, itemCount: 2, reportedAt: new Date(Date.now() - 20 * 60 * 1000) },
  ];

  for (const tab of staleTabs) {
    await createTab(venueId, tab);
  }

  console.log('Created 6 open tabs');

  const now = new Date();

  await prisma.remoteCommand.create({
    data: { id: uuidv4(), venueId, deviceId: device1Id, targetTabId: tabsData[1].tabId, type: 'close_tab', expectedVersion: 3, paymentMethod: 'cash', requestedBy: 'Eigenaar', status: 'completed', result: 'Tab closed successfully', acknowledgedAt: new Date(now.getTime() - 30 * 60 * 1000), createdAt: new Date(now.getTime() - 35 * 60 * 1000), expiresAt: new Date(now.getTime() + 23 * 60 * 60 * 1000) },
  });

  await prisma.remoteCommand.create({
    data: { id: uuidv4(), venueId, deviceId: device1Id, targetTabId: tabsData[0].tabId, type: 'close_tab', expectedVersion: 5, paymentMethod: 'payconiq', requestedBy: 'Eigenaar', status: 'pending', createdAt: new Date(now.getTime() - 5 * 60 * 1000), expiresAt: new Date(now.getTime() + 23 * 60 * 60 * 1000) },
  });

  await prisma.remoteCommand.create({
    data: { id: uuidv4(), venueId, deviceId: device2Id, targetTabId: staleTabs[0].tabId, type: 'close_tab', expectedVersion: 4, paymentMethod: 'payment_pending', requestedBy: 'Bartender', status: 'failed', result: 'Tab could not be closed', acknowledgedAt: new Date(now.getTime() - 60 * 60 * 1000), createdAt: new Date(now.getTime() - 65 * 60 * 1000), expiresAt: new Date(now.getTime() + 23 * 60 * 60 * 1000) },
  });

  await prisma.remoteCommand.create({
    data: { id: uuidv4(), venueId, deviceId: device1Id, targetTabId: tabsData[2].tabId, type: 'close_tab', expectedVersion: 7, paymentMethod: 'cash', requestedBy: 'Eigenaar', status: 'conflict', result: 'Version mismatch: expected 7, got 8', acknowledgedAt: new Date(now.getTime() - 2 * 60 * 60 * 1000), createdAt: new Date(now.getTime() - 2 * 60 * 60 * 1000 - 5 * 60 * 1000), expiresAt: new Date(now.getTime() + 22 * 60 * 60 * 1000) },
  });

  console.log('Created sample commands: completed, pending, failed, conflict');

  await prisma.auditLog.create({
    data: { id: uuidv4(), venueId, actorType: 'client_user', actorId: 'admin', action: 'command_created', details: JSON.stringify({ commandId: 'sample', tabId: tabsData[0].tabId }) },
  });

  console.log('Seeding complete!');
  console.log('');
  console.log('Demo credentials:');
  console.log('  Admin: admin@example.com / Admin123!');
  console.log('  Viewer: viewer@example.com / Viewer123!');
  console.log(`\nDevice tokens (for simulator):`);
  console.log(`  Bar terminal 1: ${token1}`);
  console.log(`  Bar terminal 2: ${token2}`);
}

main()
  .catch(console.error)
  .finally(() => prisma.$disconnect());