import Database from '../Database';

const Realm = require('realm');
let realm = new Realm(Database);

class DirectoriesModel {
  constructor() {
    this.schema = 'Directories';
  }

  add(directory) {
    realm.write(() => {
      realm.create(this.schema, directory);
    });
  }

  update(directory) {
    realm.write(() => {
      realm.create(this.schema, directory, true);
    });
  }

  get(id) {
    let tmp = realm.objects(this.schema).filtered('id = ' + id)[0];
    return tmp;
  }

  getAll(role, authorizedFolders, format, lang) {
    if (authorizedFolders !== null && authorizedFolders !== undefined) {
      authorizedFolders = JSON.parse(authorizedFolders);
    }
    let tmp = realm.objects(this.schema);
    if (role === 'USER') {
      if (authorizedFolders.length > 0) {
        tmp = tmp.filtered(
            'needAuthorization = 0 OR ' +
            authorizedFolders
                .map(folder => ' id = "' + folder.id + '"')
                .join(' OR '),
        );
      } else {
        tmp = tmp.filtered(
            'needAuthorization = 0'
        );
      }
    }
    if (format) {
      return this._recursiveDir(tmp, lang);
    }
    return tmp;
  }

  clear() {
    realm.write(() => {
      realm.delete(this.getAll('SYNC', null, false));
    });
  }

  _recursiveDir(list, lang, parent = null) {
    let root = list.filter(e => e.parent === parent);
    let tmp = [];
    for (let i = 0; i < root.length; i++) {
      let childs = this._recursiveDir(list, lang, root[i].id);
      let name = JSON.parse(root[i].name);
      tmp[i] = {};
      tmp[i].id = root[i].id;
      tmp[i].name = this.getI18nName(lang, name);
      tmp[i].items = [];
      for (let j = 0; j < childs.length; j++) {
        childs[j].value = childs[j].id;
        tmp[i].items.push(childs[j]);
      }
      if (!tmp[i].items.length) {
        delete tmp[i].items;
      }
    }
    return tmp;
  }

  getI18nName(lang, name) {
    let tmp = undefined;
    switch (lang) {
      case "fr":
        tmp = name.fr;
        break;
      case "en":
        tmp = name.en;
        break;
      case "de":
        tmp = name.de;
        break;
      case "es":
        tmp = name.es;
        break;
    }
    if (tmp === undefined) {
      tmp = name.fr;
    }
    return tmp;
  }

}

export default new DirectoriesModel();