import { NextRequest, NextResponse } from 'next/server';
import { employeeTableFiltersSchema, newEmployeeSchema } from 'src/schemas';
import prisma from 'src/lib/prisma';
import { authenticateRequest } from 'src/lib/auth-middleware';
import { Prisma } from '@prisma/client';

export async function GET(request: NextRequest) {
  try {
    // Authenticate the request
    const authResult = await authenticateRequest(request);
    if (authResult instanceof NextResponse) {
      return authResult;
    }
    const { userId, tenantId } = authResult;

    const searchParams = request.nextUrl.searchParams;
    const filters = {
      name: searchParams.get('name') || '',
      status: searchParams.get('status') || '',
    };

    // Validate filters
    const validatedFilters = employeeTableFiltersSchema.parse(filters);

    // Replace Prisma query with raw SQL
    const employees = await prisma.$queryRaw`
      SELECT * FROM "Employee"
      WHERE "tenantId" = ${tenantId}
        AND LOWER(name) LIKE LOWER(${`%${validatedFilters.name}%`})
        ${
          validatedFilters.status
            ? Prisma.sql`AND status = ${validatedFilters.status}:::"EmployeeStatus"`
            : Prisma.sql`AND TRUE`
        }
    `;

    return NextResponse.json(employees);
  } catch (error) {
    console.error('Error fetching employees:', error);
    return NextResponse.json({ error: 'Internal Server Error' }, { status: 500 });
  }
}

export async function POST(request: NextRequest) {
  try {
    // Authenticate the request
    const authResult = await authenticateRequest(request);
    if (authResult instanceof NextResponse) {
      return authResult;
    }
    const { userId, tenantId } = authResult;

    const body = await request.json();
    const validatedData = newEmployeeSchema.parse(body);

    const employee = await prisma.employee.create({
      data: {
        ...validatedData,
        tenantId,
      },
    });

    return NextResponse.json(employee, { status: 201 });
  } catch (error) {
    console.error('Error creating employee:', error);
    return NextResponse.json({ error: 'Internal Server Error' }, { status: 500 });
  }
}