package daytask

import (
	"app/commons/model/entity"
	"github.com/gin-gonic/gin"
)

// MusicGroups 获取歌单列表（含歌曲）
func (s *Server) MusicGroups(c *gin.Context) {
	ctx := s.FromContext(c)
	db := s.DB()
	if db == nil {
		ctx.Fail("数据库连接失败")
		return
	}

	type GroupWithSongs struct {
		entity.DtMusicGroup
		Songs []entity.DtMusic `json:"songs"`
	}

	// 获取所有启用的歌单
	groups := make([]*entity.DtMusicGroup, 0)
	db.Model(&entity.DtMusicGroup{}).
		Where("status = ?", 1).
		Order("sort ASC, id ASC").
		Find(&groups)

	// 获取所有启用的歌曲
	songs := make([]*entity.DtMusic, 0)
	db.Model(&entity.DtMusic{}).
		Where("status = ?", 1).
		Order("sort ASC, id ASC").
		Find(&songs)

	// 按歌单分组
	songMap := make(map[int64][]entity.DtMusic)
	for _, song := range songs {
		songMap[song.GroupId] = append(songMap[song.GroupId], *song)
	}

	result := make([]GroupWithSongs, 0)
	for _, group := range groups {
		item := GroupWithSongs{
			DtMusicGroup: *group,
			Songs:        songMap[group.Id],
		}
		if item.Songs == nil {
			item.Songs = make([]entity.DtMusic, 0)
		}
		result = append(result, item)
	}

	ctx.OK(result)
}