import type { z } from "zod/v4";

import type { TemplateSectionSchema } from "./resource-definition";

export type TemplateSectionData = z.infer<typeof TemplateSectionSchema>;

/** Secciones de un solo nivel; las referencias pertenecen exclusivamente a esta plantilla. */
export function validTemplateSections(
  sections: readonly TemplateSectionData[],
  fields: readonly { sectionId?: string | undefined }[]
) {
  const ids = new Set(sections.map((section) => section.id.toLowerCase()));
  const names = new Set(sections.map((section) => section.name.trim().toLocaleLowerCase("es")));
  return (
    ids.size === sections.length &&
    names.size === sections.length &&
    fields.every((field) => !field.sectionId || ids.has(field.sectionId.toLowerCase()))
  );
}

export function freezeTemplateSections(sections: readonly TemplateSectionData[]) {
  const frozen = sections.map((section) =>
    Object.freeze({
      id: section.id.toLowerCase(),
      name: section.name.trim(),
      description: section.description.trim(),
    })
  );
  Object.freeze(frozen);
  return frozen;
}

export function sameTemplateSections(
  first: readonly TemplateSectionData[],
  second: readonly TemplateSectionData[]
) {
  return (
    first.length === second.length &&
    first.every((section, index) => {
      const candidate = second[index];
      return (
        candidate !== undefined &&
        section.id === candidate.id &&
        section.name === candidate.name &&
        section.description === candidate.description
      );
    })
  );
}