import { Get, Path, Put, Query, Request, Response, Route, Security, SuccessResponse, Tags } from 'tsoa';
import { ValidationError } from '../middleware/errorHandler';
import { RecommendedCoursesService } from '../services/RecommendedCourses.service';
import {
    ListApprovedCoursesResponse,
    GetCourseByIdResponse,
    ToggleRecommendedResponse
} from '../types/RecommendedCourses.types';

@Route('api/admin/recommended-courses')
@Tags('Admin/RecommendedCourses')
export class RecommendedCoursesController {

    /**
     * ดึงรายการคอร์สที่อนุมัติแล้วทั้งหมด (สำหรับจัดการคอร์สแนะนำ)
     * List all approved courses (for managing recommendations)
     */
    @Get()
    @Security('jwt', ['admin'])
    @SuccessResponse('200', 'Approved courses retrieved successfully')
    @Response('401', 'Unauthorized')
    @Response('403', 'Forbidden - Admin only')
    public async listApprovedCourses(@Request() request: any): Promise<ListApprovedCoursesResponse> {
        const token = request.headers.authorization?.replace('Bearer ', '');
        if (!token) throw new ValidationError('No token provided');
        return await RecommendedCoursesService.listApprovedCourses(token);
    }

    /**
     * ดึงรายละเอียดคอร์สตาม ID
     * Get course by ID
     * @param courseId - รหัสคอร์ส / Course ID
     */
    @Get('{courseId}')
    @Security('jwt', ['admin'])
    @SuccessResponse('200', 'Course retrieved successfully')
    @Response('400', 'Course is not approved')
    @Response('401', 'Unauthorized')
    @Response('403', 'Forbidden - Admin only')
    @Response('404', 'Course not found')
    public async getCourseById(@Request() request: any, @Path() courseId: number): Promise<GetCourseByIdResponse> {
        const token = request.headers.authorization?.replace('Bearer ', '');
        if (!token) throw new ValidationError('No token provided');
        return await RecommendedCoursesService.getCourseById(token, courseId);
    }

    /**
     * เปลี่ยนสถานะคอร์สแนะนำ
     * Toggle course recommendation status
     * @param courseId - รหัสคอร์ส / Course ID
     */
    @Put('{courseId}/toggle')
    @Security('jwt', ['admin'])
    @SuccessResponse('200', 'Recommendation status updated successfully')
    @Response('400', 'Only approved courses can be recommended')
    @Response('401', 'Unauthorized')
    @Response('403', 'Forbidden - Admin only')
    @Response('404', 'Course not found')
    public async toggleRecommended(
        @Request() request: any,
        @Path() courseId: number,
        @Query() is_recommended: boolean
    ): Promise<ToggleRecommendedResponse> {
        const token = request.headers.authorization?.replace('Bearer ', '');
        if (!token) throw new ValidationError('No token provided');
        return await RecommendedCoursesService.toggleRecommended(token, courseId, is_recommended);
    }
}