import {
  Controller,
  Get,
  Patch,
  Body,
  UseGuards,
  Req,
  UseInterceptors,
  ClassSerializerInterceptor,
} from "@nestjs/common";
import { UsersService } from "./users.service";
import { JwtAuthGuard } from "../auth/guards/jwt-auth.guard";
import { ApiTags, ApiOperation, ApiResponse, ApiBearerAuth } from "@nestjs/swagger";
import { UpdateUserDto } from "./dto/update-user.dto";
import { UpdateBillingDto } from "./dto/update-billing.dto";
import { RequestWithUser } from "../auth/auth.types";

@ApiTags("users")
@Controller("me")
@UseGuards(JwtAuthGuard)
@ApiBearerAuth()
@UseInterceptors(ClassSerializerInterceptor)
export class UsersController {
  constructor(private usersService: UsersService) {}

  @Get()
  @ApiOperation({ summary: "Get current user profile" })
  @ApiResponse({ status: 200, description: "User profile retrieved successfully" })
  @ApiResponse({ status: 401, description: "Unauthorized" })
  async getProfile(@Req() req: RequestWithUser) {
    return this.usersService.findById(req.user.userId);
  }

  @Get("summary")
  @ApiOperation({ summary: "Get user dashboard summary" })
  @ApiResponse({ status: 200, description: "User summary retrieved successfully" })
  @ApiResponse({ status: 401, description: "Unauthorized" })
  async getSummary(@Req() req: RequestWithUser) {
    return this.usersService.getUserSummary(req.user.userId);
  }

  @Patch()
  @ApiOperation({ summary: "Update user profile" })
  @ApiResponse({ status: 200, description: "Profile updated successfully" })
  @ApiResponse({ status: 400, description: "Invalid input data" })
  @ApiResponse({ status: 401, description: "Unauthorized" })
  async updateProfile(@Req() req: RequestWithUser, @Body() updateData: UpdateUserDto) {
    return this.usersService.update(req.user.userId, updateData);
  }

  @Patch("billing")
  @ApiOperation({ summary: "Update billing information" })
  @ApiResponse({ status: 200, description: "Billing information updated successfully" })
  @ApiResponse({ status: 400, description: "Invalid input data" })
  @ApiResponse({ status: 401, description: "Unauthorized" })
  updateBilling(@Req() _req: RequestWithUser, @Body() _billingData: UpdateBillingDto) {
    // TODO: Sync to WHMCS custom fields
    throw new Error("Not implemented");
  }
}