package controller

import (
	"context"
	"video-factory/shortdrama/model/dto"
	"video-factory/shortdrama/service"
)

type bgm struct{}

var Bgm = new(bgm)

func (c *bgm) List(ctx context.Context, req *dto.ListBackgroundMusicReq) (res *dto.ListBackgroundMusicRes, err error) {
	list, err := service.BgmService.ListBackgroundMusic(ctx, req.DramaId)
	if err != nil {
		return nil, err
	}
	return &dto.ListBackgroundMusicRes{List: list}, nil
}

func (c *bgm) Add(ctx context.Context, req *dto.AddBackgroundMusicReq) (res *dto.GetDramaRes, err error) {
	var filePath string
	if req.AudioFile != nil {
		f, err := req.AudioFile.Open()
		if err != nil {
			return nil, err
		}
		defer func() { _ = f.Close() }()
		filePath, err = service.SaveScenePropFile(ctx, req.DramaId, f, req.AudioFile.Filename, "背景音乐", req.Name)
		if err != nil {
			return nil, err
		}
	}
	_, err = service.BgmService.AddBackgroundMusic(ctx, req.DramaId, req.Name, filePath)
	if err != nil {
		return nil, err
	}
	return nil, nil
}

func (c *bgm) Update(ctx context.Context, req *dto.UpdateBackgroundMusicReq) (res *dto.GetDramaRes, err error) {
	var filePath string
	if req.AudioFile != nil {
		f, err := req.AudioFile.Open()
		if err != nil {
			return nil, err
		}
		defer func() { _ = f.Close() }()
		filePath, err = service.SaveScenePropFile(ctx, req.DramaId, f, req.AudioFile.Filename, "背景音乐", req.Name)
		if err != nil {
			return nil, err
		}
	}
	err = service.BgmService.UpdateBackgroundMusic(ctx, req.Id, req.DramaId, req.Name, filePath)
	if err != nil {
		return nil, err
	}
	return nil, nil
}

func (c *bgm) Delete(ctx context.Context, req *dto.DeleteBackgroundMusicReq) (res *dto.GetDramaRes, err error) {
	err = service.BgmService.DeleteBackgroundMusic(ctx, req.Id)
	if err != nil {
		return nil, err
	}
	return nil, nil
}