nitropage/src/features/editor/lib/blueprint.ts

A free and open source, extensible visual page builder based on SolidStart.

import { Blueprint, Config } from "#../types";
import { NONE_BLUEPRINT_ID, ROOT_ELEMENT_ID } from "#lib/constants";

export const blueprintEntries = function (
  blueprints: Record<string, Blueprint>,
) {
  return Object.entries(blueprints)
    .filter(function ([k, v]) {
      return k !== NONE_BLUEPRINT_ID;
    })
    .sort(function (a, b) {
      return a[1].title().localeCompare(b[1].title());
    });
};
export const blueprintAllowed = function (
  declaration: Config,
  fromBlueprintId?: string | null,
  targetBlueprintId?: string | null,
  targetSlotKey?: string,
) {
  if (fromBlueprintId == null) {
    return true;
  }

  const elBlueprint = declaration.blueprints[fromBlueprintId];
  const parentIsRoot = targetBlueprintId === ROOT_ELEMENT_ID;

  if (elBlueprint.acceptParentType === "root" && !parentIsRoot) {
    return false;
  }
  if (elBlueprint.acceptParentType === "element" && parentIsRoot) {
    return false;
  }

  if (elBlueprint.acceptParent) {
    if (!targetBlueprintId) return false;
    if (!elBlueprint.acceptParent!(targetBlueprintId)) return false;
  }

  if (targetBlueprintId === ROOT_ELEMENT_ID) {
    return true;
  }

  if (targetBlueprintId == null) {
    return true;
  }

  if (targetSlotKey == null) {
    return true;
  }

  const blueprint = declaration.blueprints[targetBlueprintId];
  if (!blueprint.slots) {
    return true;
  }

  if (!blueprint.slots[targetSlotKey]) {
    return true;
  }

  const acceptBlueprint = blueprint.slots[targetSlotKey].acceptBlueprint;

  if (acceptBlueprint) {
    return acceptBlueprint(fromBlueprintId);
  }

  return true;
};