package main

import (
	"net/http"
	"sync"

	"gorm.io/gorm"
)

type App struct {
	db         *gorm.DB
	cfg        Config
	queue      chan uint
	wg         sync.WaitGroup
	httpClient *http.Client
	am         AMClient
	storage    RemoteStorage
}

// AMClient isolates the music API from the task engine.
type AMClient interface {
	Search(keyword, source string, page, limit int) (*http.Response, error)
	Resolve(source, rid, quality string) (playInfo, error)
}

// RemoteStorage isolates WebDAV and leaves room for S3/local backends later.
type RemoteStorage interface {
	Upload(localPath, remotePath string) error
	ExistsSameSize(remotePath string, size int64) (bool, error)
	Remove(remotePath string) error
	MkdirAll(remoteDir string) error
}