import { SwitchPhase, SwitchSummonPhase } from "../battle-phase";
import BattleScene from "../battle-scene";
import { addTextObject, TextStyle } from "../text";
import AwaitableUiHandler from "./awaitable-ui-handler";
import { Mode } from "./ui";

export default class SwitchCheckUiHandler extends AwaitableUiHandler {
  private switchCheckContainer: Phaser.GameObjects.Container;
  private switchCheckBg: Phaser.GameObjects.Image;

  private cursorObj: Phaser.GameObjects.Image;

  constructor(scene: BattleScene) {
    super(scene, Mode.SWITCH_CHECK);
  }

  setup() {
    const ui = this.getUi();
    
    const switchCheckContainer = this.scene.add.container((this.scene.game.canvas.width / 6) - 49, -49);
    switchCheckContainer.setVisible(false);
    ui.add(switchCheckContainer);

    this.switchCheckContainer = switchCheckContainer;

    const switchCheckBg = this.scene.add.image(0, 0, 'boolean_window');
    switchCheckBg.setOrigin(0, 1);
    switchCheckContainer.add(switchCheckBg);

    this.switchCheckBg = switchCheckBg;

    const switchCheckText = addTextObject(this.scene, 0, 0, 'Yes\nNo', TextStyle.WINDOW, { maxLines: 2 });
    switchCheckText.setPositionRelative(switchCheckBg, 16, 9);
    switchCheckText.setLineSpacing(12);
    switchCheckContainer.add(switchCheckText);

    this.setCursor(0);
  }

  show(args: any[]) {
    if (args.length && args[0] instanceof Function) {
      super.show(args);
      
      this.awaitingActionInput = true;
      this.onActionInput = args[0] as Function;

      this.switchCheckContainer.setVisible(true);
      this.setCursor(this.cursor);
    }
  }

  processInput(keyCode: integer) {
    const keyCodes = Phaser.Input.Keyboard.KeyCodes;
    const ui = this.getUi();

    if (!this.awaitingActionInput)
      return;

    let success = false;

    if (keyCode === keyCodes.Z || keyCode === keyCodes.X) {
      success = true;
      if (keyCode === keyCodes.X)
        this.setCursor(1);
      if (this.onActionInput) {
        if (!this.cursor)
          this.scene.unshiftPhase(new SwitchPhase(this.scene, false, true));
        const originalOnActionInput = this.onActionInput;
        this.onActionInput = null;
        originalOnActionInput();
        this.clear();
      }
    } else {
      switch (keyCode) {
        case keyCodes.UP:
          if (this.cursor)
            success = this.setCursor(0);
          break;
        case keyCodes.DOWN:
          if (!this.cursor)
            success = this.setCursor(1);
          break;
      }
    }

    if (success)
      ui.playSelect();
  }

  setCursor(cursor: integer): boolean {
    const ret = super.setCursor(cursor);

    if (!this.cursorObj) {
      this.cursorObj = this.scene.add.image(0, 0, 'cursor');
      this.switchCheckContainer.add(this.cursorObj);
    }

    this.cursorObj.setPositionRelative(this.switchCheckBg, 12, this.cursor ? 33 : 17);

    return ret;
  }

  clear() {
    super.clear();
    this.switchCheckContainer.setVisible(false);
    this.eraseCursor();
  }

  eraseCursor() {
    if (this.cursorObj)
      this.cursorObj.destroy();
    this.cursorObj = null;
  }
}