import {
  Controller,
  Get,
  Patch,
  Body,
  Req,
  UseInterceptors,
  ClassSerializerInterceptor,
  UsePipes,
} from "@nestjs/common";
import { UsersService } from "./users.service";
import { ZodValidationPipe } from "@bff/core/validation";
import {
  updateCustomerProfileRequestSchema,
  type UpdateCustomerProfileRequest,
} from "@customer-portal/domain/auth";
import type { RequestWithUser } from "@bff/modules/auth/auth.types";

@Controller("me")
@UseInterceptors(ClassSerializerInterceptor)
export class UsersController {
  constructor(private usersService: UsersService) {}

  /**
   * GET /me - Get complete customer profile (includes address)
   * Profile data fetched from WHMCS (single source of truth)
   */
  @Get()
  async getProfile(@Req() req: RequestWithUser) {
    return this.usersService.findById(req.user.id);
  }

  /**
   * GET /me/summary - Get dashboard summary
   */
  @Get("summary")
  async getSummary(@Req() req: RequestWithUser) {
    return this.usersService.getUserSummary(req.user.id);
  }

  /**
   * PATCH /me - Update customer profile (can update profile fields and/or address)
   * All fields optional - only send what needs to be updated
   * Updates stored in WHMCS (single source of truth)
   * 
   * Examples:
   *  - Update name only: { firstname: "John", lastname: "Doe" }
   *  - Update address only: { address1: "123 Main St", city: "Tokyo" }
   *  - Update both: { firstname: "John", address1: "123 Main St" }
   */
  @Patch()
  @UsePipes(new ZodValidationPipe(updateCustomerProfileRequestSchema))
  async updateProfile(@Req() req: RequestWithUser, @Body() updateData: UpdateCustomerProfileRequest) {
    return this.usersService.updateProfile(req.user.id, updateData);
  }
}