export const SettingsSchema = {
  name: 'Settings',
  primaryKey: 'id',
  properties: {
    /** @type {number} */
    id: 'int',
    key: 'string',
    value: 'string',
  },
};

/**
 * @typedef {Unmanaged<typeof SettingsSchema.properties> & import('realm').Object} Setting
 */

class SettingModel {
  /**
   * SettingModel
   * @param {Realm} realm
   */
  constructor(realm) {
    /** @type string */
    this.schema = 'Settings';
    /** @type {Realm} */
    this.realm = realm;
  }

  /**
   * @param {Setting} data
   */
  add(data) {
    this.realm.write(() => {
      if (data.id === undefined) {
        const id = this.realm.objects(this.schema).max('id');
        data.id = id === undefined ? 1 : id + 1;
      }
      try {
        this.realm.create(this.schema, data, 'never');
      } catch (e) {
        console.log('db setting add', e);
      }
    });
  }

  /**
   * @param {Setting} data
   */
  upsert(data) {
    const tmp = this.get(data.key);
    if (tmp === null) {
      this.add(data);
    } else {
      if (data.id === undefined) {
        data.id = tmp.id;
      }
      this.realm.write(() => {
        this.realm.create(this.schema, data, 'modified');
      });
    }
  }

  /**
   * @param {Setting} data
   */
  update(data) {
    this.realm.write(() => {
      this.realm.create(this.schema, data, 'modified');
    });
  }

  /**
   * get setting with key
   * @param {string} key
   * @returns {Setting?}
   */
  get(key) {
    /** @type {import('realm').Results<Setting>} */
    const tmp = this.realm.objects(this.schema);
    if (tmp.length === 0) {
      return null;
    }
    return tmp.filtered('key = "' + key + '"')[0] ?? null;
  }

  /**
   * delete setting with id
   * @param {number} id id
   */
  delete(id) {
    const tmp = this.get(id);
    if (typeof tmp === 'object') {
      this.realm.write(() => {
        this.realm.delete(tmp);
      });
    }
  }
}

export default SettingModel;