A shared model for our data

Before we go about creating our services, let's create an interface and model implementation for the core piece of data our app will be using. The TrackModel will represent a single track with the following:

• filepath: (to the local file)
• name: (for our view)
• order: Position (for the view listing of tracks)
• volume: We want our player to be able to mix different tracks together with different volume level settings
• solo: Whether we want to hear just this track in our mix

We will also add a convenient constructor to our model, which will take an object to initialize our model with.

Create app/modules/core/models/track.model.ts, since it will be shared across both our player and recorder:

export interface ITrack {
  filepath?: string;
  name?: string;
  order?: number;
  volume?: number;
  solo?: boolean;
}
export class TrackModel implements ITrack {
  public filepath: string;
  public name: string;
  public order: number;
  public volume: number = 1; // set default to full volume
  public solo: boolean;

  constructor(model?: any) {
    if (model) {
      for (let key in model) {
        this[key] = model[key];
      }
    }
  }
}