import { FillGroupLayerBackgroundCommand } from "../commands/FillGroupLayerBackgroundCommand";
import { FillLayerBackgroundCommand } from "../commands/FillLayerBackgroundCommand";

export class BackgroundFillManager {
  constructor({ canvas, layers, commandManager, canvasManager, layerManager }) {
    this.canvas = canvas;
    this.layers = layers;
    this.commandManager = commandManager;
    this.canvasManager = canvasManager;
	this.layerManager = layerManager;
  }

  /**
   * 填充指定图层背景
   * @param {string} layerId 图层ID
   * @param {string} fillColor 填充颜色
   * @param {boolean} undoable 是否可撤销
   * @returns {Promise<void>}
   */
  async fillLayerBackground(layerId, fillColor, undoable) {
    if (!layerId || !fillColor) {
      console.warn("图层ID或填充颜色不能为空");
      return;
    }

    const command = new FillGroupLayerBackgroundCommand({
      canvas: this.canvas,
      layers: this.layers,
      layerId,
      fillColor,
      canvasManager: this.canvasManager,
	  layerManager: this.layerManager,
      // 是否实时更新
      isRetimeUpdate: !undoable,
    });
    command.undoable = undoable;

    if (this.commandManager) {
      await this.commandManager.execute(command);
    } else {
      await command.execute();
    }
  }
}