using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using VOL.Business.IServices;
using VOL.Business.Services;
using VOL.Core.Filters;
using VOL.Core.Utilities;
using VOL.Model;
using VOL.WebApi.Filter;

namespace VOL.WebApi.Controllers.Business
{
    /// <summary>
    /// 热门课程
    /// </summary>
    [Route("api/[controller]")]
    [ApiController]
    [ApiExplorerSettings(GroupName = "v3")]
    [TypeFilter(typeof(CustomApiResponseFilter))]
    public class CurricularController : ControllerBase
    {
        #region  初始化
        private readonly ICurricularService _curricularService;
        public CurricularController(
            ICurricularService curricularService)
        {
            _curricularService = curricularService;
        }
        #endregion

        /// <summary>
        /// 查询课程分类
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        [HttpGet(nameof(GetCourseCategories))]
        public async Task<PageDataDto<CourseCategoryDto>> GetCourseCategories([FromQuery] CourseCategoryVo dto)
        {
            var result = await _curricularService.GetCourseCategories(dto);
            return result;
        }

        /// <summary>
        /// 新增课程分类
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        [HttpPost(nameof(AddCourseCategory))]
        public async Task<ActionResult> AddCourseCategory([FromBody] CourseCategoryDto dto)
        {
            await _curricularService.AddCourseCategory(dto);
            return Ok("新增成功");
        }

        /// <summary>
        /// 更新课程分类
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        [HttpPost(nameof(UpdateCourseCategory))]
        public async Task<ActionResult> UpdateCourseCategory([FromBody] CourseCategoryDto dto)
        {
            await _curricularService.UpdateCourseCategory(dto);
            return Ok("更新成功");
        }

        /// <summary>
        /// 删除课程分类
        /// </summary>
        /// <param name="categoryId"></param>
        /// <returns></returns>
        [HttpPost(nameof(DeleteCourseCategory))]
        public async Task<ActionResult> DeleteCourseCategory(int categoryId)
        {
            await _curricularService.DeleteCourseCategory(categoryId);
            return Ok("删除成功");
        }

        /// <summary>
        /// 课程列表
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        [HttpGet(nameof(CurricularList))]
        public async Task<PageDataDto<CurricularListDto>> CurricularList([FromQuery] CurricularListVo dto)
        {
            var result = await _curricularService.GetCurricularList(dto);
            return result;
        }

        /// <summary>
        /// 新增课程
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        [HttpPost(nameof(AddCurricular))]
        public async Task<ActionResult> AddCurricular([FromBody] CurricularAddDto dto)
        {
            await _curricularService.AddCurricular(dto);
            return Ok("新增成功");
        }

        /// <summary>
        /// 获取课程详情
        /// </summary>
        /// <param name="courseId"></param>
        /// <returns></returns>
        [HttpGet(nameof(GetCourseDetails))]
        public async Task<CurricularAddDto> GetCourseDetails(int courseId)
        {
            var result = await _curricularService.GetCourseDetails(courseId);
            return result;
        }

        /// <summary>
        /// 更新课程
        /// </summary>
        /// <param name="dto"></param>
        /// <returns></returns>
        [HttpPost(nameof(UpdateCourse))]
        public async Task<ActionResult> UpdateCourse([FromBody] CurricularAddDto dto)
        {
            await _curricularService.UpdateCourse(dto);
            return Ok("更新成功");
        }

        /// <summary>
        /// 删除课程
        /// </summary>
        /// <param name="courseId"></param>
        /// <returns></returns>
        [HttpPost(nameof(DeleteCourse))]
        public async Task<ActionResult> DeleteCourse(int courseId)
        {
            await _curricularService.DeleteCourse(courseId);
            return Ok("删除成功");
        }

        /// <summary>
        /// 热门课程列表
        /// </summary>
        /// <param name="dto">查询参数</param>
        /// <returns>热门课程列表</returns>
        [HttpGet(nameof(GetPopularCurricularList))]
        public async Task<PageDataDto<PopularCurricularDto>> GetPopularCurricularList([FromQuery] PopularCurricularVo dto)
        {
            // 验证展示数量至少为2
            if (dto.DisplayMode == "自动" && dto.DisplayCount.HasValue && dto.DisplayCount.Value < 2)
            {
                throw new Exception("最少展示2节课程");
            }

            var result = await _curricularService.GetPopularCurricularList(dto);
            return result;
        }

        /// <summary>
        /// 添加热门课程
        /// </summary>
        /// <param name="dto">课程ID列表</param>
        /// <returns></returns>
        [HttpPost(nameof(AddPopularCurricular))]
        public async Task<ActionResult> AddPopularCurricular([FromBody] AddPopularCurricularDto dto)
        {
            await _curricularService.AddPopularCurricular(dto);
            return Ok("添加成功");
        }

        /// <summary>
        /// 删除热门课程
        /// </summary>
        /// <param name="id">热门课程ID</param>
        /// <returns></returns>
        [HttpPost(nameof(DeletePopularCurricular))]
        public async Task<ActionResult> DeletePopularCurricular(int id)
        {
            await _curricularService.DeletePopularCurricular(id);
            return Ok("删除成功");
        }

        /// <summary>
        /// 上传视频
        /// </summary>
        /// <param name="file"></param>
        /// <returns></returns>
        [HttpPost(nameof(UploadVideo))]
        public async Task<string> UploadVideo(IFormFile file)
        {
            var url = await _curricularService.UploadVideo(file);

            return url;
        }

        /// <summary>
        /// 封面图片
        /// </summary>
        /// <param name="file"></param>
        /// <returns></returns>
        [HttpPost(nameof(UploadImage))]
        public string UploadImage(IFormFile file)
        {
            var url = _curricularService.UploadImage(file);
            return url;
        }
    }
}