export type MMedia = MFile | MSourceImage | MImageVariant;
export type MSourceMedia = MFile | MSourceImage;
export type MImage = MSourceImage | MImageVariant;

export interface MMediaBase {
  mediaId: string;
  url: string;
  mediaType: string;
}

export interface MSourceBase {
  isSource: true;
  weightB: number;
  originalName?: string;
  /**
   * The `attachedData` is optionally loaded. So it can be `undefined` for two reasons: if there is
   * no attached data in the database, or if it has not been loaded.
   */
  attachedData?: MAttachedData;
}

export interface MAttachedData {
  [language: string]: MLocalizedAttachedData | undefined;
}

export interface MLocalizedAttachedData {
  [propName: string]: string | number | boolean | object | null | undefined;
  caption?: string;
}

export interface MImageBase {
  kind: "image";
  rawWidth: number;
  rawHeight: number;
  /** Rendered width. This value is equals to `round(rawWidth / pixelRatio)`. */
  width: number;
  /** Rendered height. This value is equals to `round(rawHeight / pixelRatio)`. */
  height: number;
}

export interface MFile extends MMediaBase, MSourceBase {
  kind: "file";
}

export interface MSourceImage extends MMediaBase, MSourceBase, MImageBase {
  /** Can be `undefined`, then the size is computed using the theme pixel ratio. */
  pixelRatio?: number;
}

export interface MImageVariant extends MMediaBase, MImageBase {
  isSource: false;
  pixelRatio: number;
}

/**
 * It's a filter option. `true` means all the language, `false` (default) means that the attached
 * data won't be loaded. */
export type WithAttachedData = boolean | { language: string };