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

const prisma = new PrismaClient();

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

  // Create default roles
  const roles = await Promise.all([
    prisma.role.upsert({
      where: { name: 'admin' },
      update: {},
      create: {
        name: 'admin',
        description: 'Administrator with full system access',
        permissions: JSON.stringify([
          'users:read',
          'users:write',
          'users:delete',
          'employees:read',
          'employees:write',
          'employees:delete',
          'departments:read',
          'departments:write',
          'departments:delete',
          'roles:read',
          'roles:write',
          'roles:delete',
          'settings:read',
          'settings:write',
        ]),
        isSystem: true,
      },
    }),
    prisma.role.upsert({
      where: { name: 'hr-manager' },
      update: {},
      create: {
        name: 'hr-manager',
        description: 'HR Manager with access to employee data',
        permissions: JSON.stringify([
          'users:read',
          'users:write',
          'employees:read',
          'employees:write',
          'departments:read',
          'absences:read',
          'absences:write',
          'time-entries:read',
          'time-entries:write',
          'reviews:read',
          'reviews:write',
        ]),
        isSystem: true,
      },
    }),
    prisma.role.upsert({
      where: { name: 'team-lead' },
      update: {},
      create: {
        name: 'team-lead',
        description: 'Team leader with access to team data',
        permissions: JSON.stringify([
          'users:read',
          'employees:read',
          'departments:read',
          'absences:read',
          'absences:approve',
          'time-entries:read',
          'reviews:read',
          'reviews:write',
          'skills:read',
          'skills:write',
        ]),
        isSystem: true,
      },
    }),
    prisma.role.upsert({
      where: { name: 'employee' },
      update: {},
      create: {
        name: 'employee',
        description: 'Regular employee with basic access',
        permissions: JSON.stringify([
          'profile:read',
          'profile:write',
          'absences:read',
          'absences:request',
          'time-entries:read',
          'time-entries:write',
          'skills:read',
        ]),
        isSystem: true,
      },
    }),
  ]);

  console.log(`Created ${roles.length} roles`);

  // Create default departments
  const departments = await Promise.all([
    prisma.department.upsert({
      where: { code: 'MGMT' },
      update: {},
      create: {
        name: 'Management',
        code: 'MGMT',
      },
    }),
    prisma.department.upsert({
      where: { code: 'HR' },
      update: {},
      create: {
        name: 'Human Resources',
        code: 'HR',
      },
    }),
    prisma.department.upsert({
      where: { code: 'ENG' },
      update: {},
      create: {
        name: 'Engineering',
        code: 'ENG',
      },
    }),
    prisma.department.upsert({
      where: { code: 'PROD' },
      update: {},
      create: {
        name: 'Production',
        code: 'PROD',
      },
    }),
    prisma.department.upsert({
      where: { code: 'QA' },
      update: {},
      create: {
        name: 'Quality Assurance',
        code: 'QA',
      },
    }),
  ]);

  console.log(`Created ${departments.length} departments`);

  // Create admin user (for development)
  if (process.env.NODE_ENV !== 'production') {
    const adminRole = roles.find((r) => r.name === 'admin');
    const mgmtDept = departments.find((d) => d.code === 'MGMT');

    if (adminRole && mgmtDept) {
      const adminUser = await prisma.user.upsert({
        where: { email: 'admin@tos.local' },
        update: {},
        create: {
          email: 'admin@tos.local',
          firstName: 'System',
          lastName: 'Administrator',
          departmentId: mgmtDept.id,
          roles: {
            create: {
              roleId: adminRole.id,
            },
          },
        },
      });

      console.log(`Created admin user: ${adminUser.email}`);
    }
  }

  // Create default skills
  const skills = await Promise.all([
    prisma.skill.upsert({
      where: { name_departmentId: { name: 'Communication', departmentId: null as unknown as string } },
      update: {},
      create: {
        name: 'Communication',
        description: 'Effective verbal and written communication',
        category: 'Soft Skills',
      },
    }),
    prisma.skill.upsert({
      where: { name_departmentId: { name: 'Problem Solving', departmentId: null as unknown as string } },
      update: {},
      create: {
        name: 'Problem Solving',
        description: 'Analytical thinking and problem resolution',
        category: 'Soft Skills',
      },
    }),
    prisma.skill.upsert({
      where: { name_departmentId: { name: 'Team Collaboration', departmentId: null as unknown as string } },
      update: {},
      create: {
        name: 'Team Collaboration',
        description: 'Working effectively in a team environment',
        category: 'Soft Skills',
      },
    }),
  ]);

  console.log(`Created ${skills.length} skills`);

  console.log('Database seeding completed!');
}

main()
  .catch((e) => {
    console.error('Error seeding database:', e);
    process.exit(1);
  })
  .finally(async () => {
    await prisma.$disconnect();
  });