import * as path from "path";
import {Directory} from "../../../common/entities/Directory";
import {IGalleryManager} from "../IGalleryManager";
import {DiskManager} from "../DiskManger";
import {Utils} from "../../../common/Utils";
import {DirectoryModel} from "./entities/DirectoryModel";
import {PhotoModel} from "./entities/PhotoModel";

export class MongoGalleryManager implements IGalleryManager {

    constructor() {
    }

    public listDirectory(relativeDirectoryName, cb:(error:any, result:Directory) => void) {
        let directoryName = path.basename(relativeDirectoryName);
        let directoryParent = path.join(path.dirname(relativeDirectoryName), "/");

        DirectoryModel.findOne({
            name: directoryName,
            path: directoryParent
        }).populate('photos').populate('directories').exec((err, res:any) => {
            if (err || !res) {
                return this.indexDirectory(relativeDirectoryName, cb);
            }
            return cb(err, res);
        });

    }

    public indexDirectory(relativeDirectoryName, cb:(error:any, result:Directory) => void) {
        DiskManager.scanDirectory(relativeDirectoryName, (err, scannedDirectory)=> {
            let arr = [];
            scannedDirectory.directories.forEach((value) => {
                let dir = new DirectoryModel(value);
                Utils.setKeys(dir, value);
                dir.save();
                arr.push(dir);
            });
            scannedDirectory.directories = arr;
            arr = [];
            scannedDirectory.photos.forEach((value) => {
                let p = new PhotoModel(value);
                Utils.setKeys(p, value);
                p.save();
                arr.push(p);
            });

            scannedDirectory.photos = arr;
            DirectoryModel.create(scannedDirectory, (err)=> {
                return cb(err, scannedDirectory);
            });

        });
    }


}