package core

import (
	"ZhenTuLocalPassiveAdapter/config"
	"ZhenTuLocalPassiveAdapter/dto"
	"ZhenTuLocalPassiveAdapter/fs"
	"ZhenTuLocalPassiveAdapter/util"
	"fmt"
)

func HandleTask(device config.DeviceMapping, task dto.Task) (*dto.FileObject, error) {
	adapter := fs.GetAdapter()
	fileList, err := adapter.GetFileList(device.Name + "/" + task.StartTime.Format("2006"+config.Config.FileName.DateSeparator+"01"+config.Config.FileName.DateSeparator+"02"))
	if err != nil {
		return nil, err
	}
	files := util.FilterAndSortFiles(fileList, task.StartTime, task.EndTime)
	if len(files) == 0 {
		return nil, fmt.Errorf("没有找到文件")
	}
	constructTask, err := util.CheckFileCoverageAndConstructTask(files, task.StartTime, task.EndTime, task)
	if err != nil {
		return nil, err
	}
	ok := util.RunFfmpegTask(constructTask)
	if !ok {
		return nil, fmt.Errorf("ffmpeg任务执行失败")
	}
	return &dto.FileObject{
		CreateTime:   task.EndTime,
		EndTime:      task.EndTime,
		NeedDownload: true,
		URL:          constructTask.OutputFile,
	}, nil
}