import { expect, test } from "@playwright/test";
import {
  completedDetailReplacementCardIds,
  detailReplacementCardMessageId,
  detailReplacementSubmissionKey,
  isDetailReplacementBatchRequest,
  isDetailReplacementUuid,
  type DetailReplacementBatchResult,
} from "@/lib/agents/detail-replacement-batch";
import { readFileSync } from "node:fs";
import { resolve } from "node:path";

test("recognizes only durable detail replacement batches", () => {
  expect(isDetailReplacementBatchRequest({ taskKind: "agent-detail-replacement-batch" })).toBe(true);
  expect(isDetailReplacementBatchRequest({ taskKind: "style-pro" })).toBe(false);
  expect(isDetailReplacementBatchRequest(null)).toBe(false);
});

test("card message identity stays stable across retries and page reloads", () => {
  const id = detailReplacementCardMessageId("batch-a", "card-01");
  expect(id).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/);
  expect(detailReplacementCardMessageId("batch-a", "card-01")).toBe(id);
  expect(detailReplacementCardMessageId("batch-a", "card-02")).not.toBe(id);
});

test("restart skips successful cards but retries failed ones", () => {
  const result: DetailReplacementBatchResult = {
    taskKind: "agent-detail-replacement-batch",
    currentCardId: null,
    cards: [
      { cardId: "one", status: "completed", imageUrl: "https://example.com/one.png", thumbnailUrl: "https://example.com/one.png", text: "" },
      { cardId: "two", status: "fallback", imageUrl: "https://example.com/two.png", thumbnailUrl: "https://example.com/two.png", text: "生成失败" },
      { cardId: "three", status: "passthrough", imageUrl: "https://example.com/three.png", thumbnailUrl: "https://example.com/three.png", text: "" },
    ],
  };
  expect([...completedDetailReplacementCardIds(result)]).toEqual(["one", "three"]);
});

const submission = {
  projectId: "11111111-1111-1111-1111-111111111111",
  model: "gpt-image-2.5",
  prompt: "保持版式，替换产品主体",
  userPrompt: "详情替换",
  imageSize: "2K",
  replacementStrategy: "scene_replace",
  productImageUrls: ["https://example.com/p2.png", "https://example.com/p1.png"],
  modelImageUrl: null,
  references: [
    { id: "card-01", label: "首屏", imageUrl: "https://example.com/a.png" },
    { id: "card-02", label: "第二屏", imageUrl: "https://example.com/b.png" },
  ],
};

test("an identical double click resolves to the same submission key", () => {
  expect(detailReplacementSubmissionKey(submission)).toBe(
    detailReplacementSubmissionKey({
      ...submission,
      productImageUrls: [...submission.productImageUrls].reverse(),
      references: [...submission.references].reverse(),
    }),
  );
});

test("re-running a single card while a batch runs is not treated as a duplicate", () => {
  const full = detailReplacementSubmissionKey(submission);
  expect(detailReplacementSubmissionKey({
    ...submission,
    references: [submission.references[0]!],
  })).not.toBe(full);
  expect(detailReplacementSubmissionKey({
    ...submission,
    prompt: "换一个背景",
  })).not.toBe(full);
});

test("accepts the canonical 8-4-4-4-12 UUIDs the API receives", () => {
  // Real project ids taken from production requests that returned 400 in the field.
  expect(isDetailReplacementUuid("b1fa322a-dc36-49a0-9d07-8f06ffdab680")).toBe(true);
  expect(isDetailReplacementUuid("15f4bdc7-2487-4926-bf38-87df559aea6a")).toBe(true);
  // Browser generated request ids look like this.
  expect(isDetailReplacementUuid("3f2504e0-4f89-41d3-9a0c-0305e82c3301")).toBe(true);
  // The scoped chat id the route derives for a batch project is a UUID too.
  expect(isDetailReplacementUuid("b1fa322a-dc36-49a0-9d07-a93e17a60001")).toBe(true);
});

test("rejects malformed ids, including the 8-4-4-12 shape that broke polling", () => {
  expect(isDetailReplacementUuid("")).toBe(false);
  expect(isDetailReplacementUuid(null)).toBe(false);
  expect(isDetailReplacementUuid(undefined)).toBe(false);
  // Missing the fourth group: this is exactly the bug that made every request 400.
  expect(isDetailReplacementUuid("b1fa322a-dc36-49a0-8f06ffdab680")).toBe(false);
  expect(isDetailReplacementUuid("b1fa322adc3649a09d078f06ffdab680")).toBe(false);
  expect(isDetailReplacementUuid("b1fa322a-dc36-49a0-9d07-8f06ffdab680-extra")).toBe(false);
});

test("the batch route keeps no stale UUID regex of its own", () => {
  const sources = [
    "app/api/agents/detail-replacement/batches/route.ts",
    "lib/agents/detail-replacement-batch-runner.ts",
  ].map((file) => readFileSync(resolve(process.cwd(), file), "utf8"));
  for (const source of sources) {
    // A local 8-4-4-12 literal is the typo this feature shipped with.
    expect(source).not.toMatch(/\^\[0-9a-f\]\{8\}-\[0-9a-f\]\{4\}-\[0-9a-f\]\{4\}-\[0-9a-f\]\{12\}\$/);
  }
});