import { NextRequest, NextResponse } from 'next/server';
import { z } from 'zod';
import { auditCreate } from '@/features/foundation/audit-log/service';
import {
  createCustomerContact,
  listCustomerContacts
} from '@/features/crm/customers/server/service';
import { customerContactSchema } from '@/features/crm/customers/schemas/customer.schema';
import { PERMISSIONS } from '@/lib/auth/rbac';
import { AuthError, requireOrganizationAccess } from '@/lib/auth/session';

type Params = {
  params: Promise<{ id: string }>;
};

export async function GET(_request: NextRequest, { params }: Params) {
  try {
    const { id } = await params;
    const { organization } = await requireOrganizationAccess({
      permission: PERMISSIONS.crmContactRead
    });
    const items = await listCustomerContacts(id, organization.id);

    return NextResponse.json({
      success: true,
      time: new Date().toISOString(),
      message: 'Customer contacts loaded successfully',
      items
    });
  } catch (error) {
    if (error instanceof AuthError) {
      return NextResponse.json({ message: error.message }, { status: error.status });
    }

    if (error instanceof Error) {
      return NextResponse.json({ message: error.message }, { status: 400 });
    }

    return NextResponse.json({ message: 'Unable to load contacts' }, { status: 500 });
  }
}

export async function POST(request: NextRequest, { params }: Params) {
  try {
    const { id } = await params;
    const { organization, session } = await requireOrganizationAccess({
      permission: PERMISSIONS.crmContactCreate
    });
    const payload = customerContactSchema.parse(await request.json());
    const created = await createCustomerContact(id, organization.id, session.user.id, payload);

    await auditCreate({
      organizationId: organization.id,
      userId: session.user.id,
      entityType: 'crm_customer_contact',
      entityId: created.id,
      afterData: created
    });

    return NextResponse.json(
      {
        success: true,
        message: 'Contact created successfully',
        contact: created
      },
      { status: 201 }
    );
  } catch (error) {
    if (error instanceof AuthError) {
      return NextResponse.json({ message: error.message }, { status: error.status });
    }

    if (error instanceof z.ZodError) {
      return NextResponse.json(
        { message: error.issues[0]?.message ?? 'Invalid payload' },
        { status: 400 }
      );
    }

    if (error instanceof Error) {
      return NextResponse.json({ message: error.message }, { status: 400 });
    }

    return NextResponse.json({ message: 'Unable to create contact' }, { status: 500 });
  }
}
