import { describe, expect, it } from "vitest";

import { applyTemplate, builtInTemplates } from ".";

const characterId = "a23ff62d-e74a-44fd-a8b1-c3aa62bedf13";

describe("built-in templates", () => {
  it("contains the six required reusable structures", () => {
    expect(builtInTemplates.map((template) => template.slug)).toEqual([
      "classic-character-guide",
      "combo-rotation-guide",
      "combined-one-page-build",
      "multi-role-reaction-build",
      "categorized-team-database",
      "calculation-comparison-guide",
    ]);
  });

  it("applies every template as hidden, independently validated content", () => {
    for (const template of builtInTemplates) {
      const applied = applyTemplate(template, characterId);
      expect(applied.pages.length).toBeGreaterThan(0);
      expect(applied.pages.every((page) => page.visible === false)).toBe(true);
      expect(applied.pages.every((page) => page.version === 1)).toBe(true);
      expect(
        applied.pages.flatMap((page) => page.blocks).every((block) => block.schemaVersion === 1),
      ).toBe(true);
    }
  });

  it("clones pages, blocks, nested items, and data sources independently", () => {
    const template = builtInTemplates[0];
    const first = applyTemplate(template, characterId);
    const second = applyTemplate(template, characterId);

    expect(first.pages[0].id).not.toBe(second.pages[0].id);
    expect(first.pages[0].blocks[0].id).not.toBe(second.pages[0].blocks[0].id);
    expect(first.dataSources[0].id).not.toBe(second.dataSources[0].id);
    expect(
      (first.pages[1].blocks[0].config as { dataSourceId: string }).dataSourceId,
    ).toBe(first.dataSources[0].id);
    expect(
      (second.pages[1].blocks[0].config as { dataSourceId: string }).dataSourceId,
    ).toBe(second.dataSources[0].id);

    first.pages[0].title = "แก้เฉพาะสำเนาแรก";
    expect(second.pages[0].title).toBe("ข้อมูล");
    expect(template.pages[0].title).toBe("ข้อมูล");
  });

  it("applies later template edits only to future applications", () => {
    const before = applyTemplate(builtInTemplates[1], characterId);
    const edited = structuredClone(builtInTemplates[1]);
    edited.pages[0].title = "โรเทชันฉบับใหม่";
    const after = applyTemplate(edited, characterId);

    expect(before.pages[0].title).toBe("คอมโบ");
    expect(after.pages[0].title).toBe("โรเทชันฉบับใหม่");
  });
});