import deepUnref from '../../utils/deep-unref';
import { LayerObject } from './interfaces';

export class HousePlannerCanvasClipboard {
  public storedObjects: LayerObject[] = [];
  public wasCutOperation = false;

  storeToClipboard(items: LayerObject[], cut = false) {
    this.wasCutOperation = cut;

    // If we are cutting, we store the object by reference and return it all in its original state
    if (cut) {
      this.storedObjects = [...items];
      return;
    }

    this.storedObjects = [
      ...items.map((item) => {
        const itemCopy = {
          ...deepUnref(item),
          visible: true,
          name: item.name + ' Copy',
        };
        delete itemCopy.databaseId;
        return itemCopy;
      }),
    ];
  }

  getFromClipboard(newId: number, selected = true): LayerObject[] {
    if (this.wasCutOperation) {
      const unalteredList = [...this.storedObjects];
      this.storeToClipboard(this.storedObjects, false);
      return unalteredList;
    }

    const newObjects = deepUnref(this.storedObjects);
    return newObjects.map((item, index) => ({
      ...item,
      id: newId + index,
      selected,
    }));
  }
}