import Schema from '@/ecs/schema.js';

export default function(Component) {
  return class Ticking extends Component {
    instanceFromSchema() {
      const Instance = super.instanceFromSchema();

      Instance.prototype.$$finished = [];
      Instance.prototype.$$tickingPromises = [];
      Instance.prototype.addTickingPromise = function(tickingPromise) {
        this.$$tickingPromises.push(tickingPromise);
        tickingPromise.then(() => {
          this.$$finished.push(tickingPromise);
        });
      }
      Instance.prototype.tick = function(elapsed) {
        for (const tickingPromise of this.$$finished) {
          this.$$tickingPromises.splice(
            this.$$tickingPromises.indexOf(tickingPromise),
            1,
          );
        }
        this.$$finished = [];
        for (const tickingPromise of this.$$tickingPromises) {
          tickingPromise.tick(elapsed);
        }
        for (const tickingPromise of this.$$finished) {
          this.$$tickingPromises.splice(
            this.$$tickingPromises.indexOf(tickingPromise),
            1,
          );
        }
        this.$$finished = [];
      }
      return Instance;
    }
    static schema = new Schema({
      type: 'object',
      properties: {
        isTicking: {defaultValue: 1, type: 'uint8'},
      },
    });
  };
}