import { Sound } from "./sound.ts";
import { SaveFileV1 } from "./saveformat.ts";

export type VNSceneMessage = {
  type: "message";
  text: string;
  sfx?: Sound;
};

export type VNSceneCallback = {
  type: "callback";
  callback: () => void;
};

export type VNSceneSaveGameScreen = {
  type: "saveGameScreen";
  file: SaveFileV1 | null;
  error: string | null;
};

export type VNSceneBasisPart = string | VNSceneMessage | VNSceneCallback;
export type VNSceneBasis = VNSceneBasisPart[];
export type VNScenePart =
  | VNSceneMessage
  | VNSceneCallback
  | VNSceneSaveGameScreen;
export type VNScene = VNScenePart[];

export function compile(basis: VNSceneBasis): VNScene {
  let out: VNScene = [];
  for (let item of basis.values()) {
    if (typeof item == "string") {
      out.push({
        type: "message",
        text: item,
      });
    } else {
      out.push(item);
    }
  }
  return out;
}