import { Account } from 'models';
import TenantRepository from 'repositories/TenantRepository';
import { IAccount } from 'interfaces';

export default class AccountRepository extends TenantRepository {
  /**
   * Gets the repository's model.
   */
  get model() {
    return Account.bindKnex(this.knex);
  }

  /**
   * Retrieve accounts dependency graph.
   * @returns {}
   */
  async getDependencyGraph(withRelation) {    
    const cacheKey = this.getCacheKey('accounts.depGraph', withRelation);

    return this.cache.get(cacheKey, async () => {
      const accounts = await this.all(withRelation);

      return this.model.toDependencyGraph(accounts);
    });
  }

  /**
   * Changes account balance.
   * @param {number} accountId 
   * @param {number} amount 
   * @return {Promise<void>}
   */
  async balanceChange(accountId: number, amount: number): Promise<void> {
    const method: string = (amount < 0) ? 'decrement' : 'increment';

    await this.model.query().where('id', accountId)[method]('amount', amount);
    this.flushCache();
  }

  /**
   * Activate user by the given id.
   * @param  {number} userId - User id.
   * @return {Promise<void>}
   */
  activateById(userId: number): Promise<IAccount> {
    return super.update({ active: 1 }, { id: userId });
  }

  /**
   * Inactivate user by the given id.
   * @param  {number} userId - User id.
   * @return {Promise<void>}
   */
  inactivateById(userId: number): Promise<void> {
    return super.update({ active: 0 }, { id: userId });
  }

  /**
   * Activate user by the given id.
   * @param  {number} userId - User id.
   * @return {Promise<void>}
   */
  async activateByIds(userIds: number[]): Promise<IAccount> {
    const results = await this.model.query()
      .whereIn('id', userIds)
      .patch({ active: true });

    this.flushCache();
    return results;
  }

  /**
   * Inactivate user by the given id.
   * @param  {number} userId - User id.
   * @return {Promise<void>}
   */
  async inactivateByIds(userIds: number[]): Promise<IAccount> {
    const results = await this.model.query()
      .whereIn('id', userIds)
      .patch({ active: false });

    this.flushCache();
    return results;
  }
}