import { Public } from "@bish-nest/core/auth/decorator/public.decorator";
import { Controller, Get, HttpCode, HttpStatus, NotFoundException, Param, ParseIntPipe } from "@nestjs/common";
import { ApiOperation, ApiResponse, ApiTags } from "@nestjs/swagger";
import { CLCourseService } from "./course.service";
import { CLCourseDto } from "./dto";

@ApiTags("Client - Courses")
@Controller("api/client/course")
export class CLCourseController {
  constructor(private courseService: CLCourseService) {}

  /**
   * Get all published courses for client consumption
   * GET /api/client/course
   */
  @HttpCode(HttpStatus.OK)
  @Public()
  @Get()
  @ApiOperation({ summary: "Get all published courses" })
  @ApiResponse({
    status: 200,
    description: "Returns array of published courses with enriched data",
    type: [CLCourseDto],
  })
  async getPublishedCourses(): Promise<CLCourseDto[]> {
    return this.courseService.getPublishedCourses();
  }

  /**
   * Get a single published course by ID
   * GET /api/client/course/:id
   */
  @HttpCode(HttpStatus.OK)
  @Public()
  @Get(":id")
  @ApiOperation({ summary: "Get a published course by ID" })
  @ApiResponse({
    status: 200,
    description: "Returns a single published course with enriched data",
    type: CLCourseDto,
  })
  @ApiResponse({
    status: 404,
    description: "Course not found or not published",
  })
  async getPublishedCourseById(@Param("id", ParseIntPipe) id: number): Promise<CLCourseDto> {
    const course = await this.courseService.getPublishedCourseById(id);

    if (!course) {
      throw new NotFoundException(`Course with ID ${id} not found or not published`);
    }

    return course;
  }
}