import { describe, expect, test } from "bun:test";
import {
  createVideoPublishingModule,
  type VideoPublishJobRecord,
  type VideoPublishUploadRecord,
  type VideoPublishingEvent,
} from "@/lib/video/video-publishing";

type TestUpload = VideoPublishUploadRecord & { title: string };
type TestJob = VideoPublishJobRecord;

function fixture() {
  const upload: TestUpload = {
    id: "upload-1",
    title: "Test upload",
    status: "processing",
    scheduledAt: null,
    createdAt: new Date("2026-08-09T00:00:00Z"),
  };
  const job: TestJob = {
    id: "job-1",
    uploadId: upload.id,
    platform: "youtube",
    status: "pending",
    attempts: 0,
  };
  const events: VideoPublishingEvent[] = [];
  const updates: string[] = [];
  const jobs = [job];
  const publishing = createVideoPublishingModule({
    store: {
      claimJob: async (_jobId, startedAt) => {
        if (job.status === "completed" || job.status === "processing") return null;
        job.status = "processing";
        job.attempts += 1;
        void startedAt;
        return job;
      },
      findUpload: async () => upload,
      markCompleted: async (nextJob) => { nextJob.status = "completed"; },
      markFailed: async (nextJob) => { nextJob.status = "failed"; },
      findDueUploads: async () => [upload],
      findJobs: async () => jobs,
      updateUploadStatus: async (_upload, status) => {
        updates.push(status);
      },
    },
    publishers: {
      youtube: async (nextUpload) => ({ id: nextUpload.id, url: "https://youtube.test/video" }),
      tiktok: async (nextUpload) => ({ id: nextUpload.id, url: "https://tiktok.test/video" }),
    },
    notify: async (event) => { events.push(event); },
    now: () => new Date("2026-08-09T00:01:00Z"),
  });

  return { events, job, jobs, publishing, updates, upload };
}

describe("video publishing job module", () => {
  test("keeps provider result and lifecycle notifications separate", async () => {
    const { events, job, publishing } = fixture();

    await publishing.publishJob(job.id);

    expect(job).toMatchObject({ status: "completed", attempts: 1 });
    expect(events.map((event) => event.status)).toEqual(["processing", "completed"]);
  });

  test("marks provider failures without hiding the original error", async () => {
    const { events, job } = fixture();
    const publishing = createVideoPublishingModule({
      store: {
        claimJob: async () => {
          if (job.status === "processing" || job.status === "completed") return null;
          job.status = "processing";
          return job;
        },
        findUpload: async () => ({
          id: "upload-1",
          title: "Test upload",
          status: "processing",
          scheduledAt: null,
          createdAt: new Date(),
        }),
        markCompleted: async () => {},
        markFailed: async (nextJob) => { nextJob.status = "failed"; },
        findDueUploads: async () => [],
        findJobs: async () => [],
        updateUploadStatus: async () => {},
      },
      publishers: {
        youtube: async () => { throw new Error("provider offline"); },
        tiktok: async () => ({ id: "id", url: "url" }),
      },
      notify: async (event) => { events.push(event); },
    });

    await expect(publishing.publishJob(job.id)).rejects.toThrow("provider offline");
    expect(job.status).toBe("failed");
    expect(events.at(-1)?.status).toBe("failed");
  });

  test("allows only one caller to claim a job", async () => {
    const { job, publishing } = fixture();

    await Promise.all([publishing.publishJob(job.id), publishing.publishJob(job.id)]);

    expect(job).toMatchObject({ status: "completed", attempts: 1 });
  });

  test("derives partial status from all platform jobs", async () => {
    const { updates, upload } = fixture();
    const jobs: TestJob[] = [
      {
        id: "job-1",
        uploadId: upload.id,
        platform: "youtube",
        status: "completed",
        attempts: 1,
      },
      {
        id: "job-2",
        uploadId: upload.id,
        platform: "tiktok",
        status: "processing",
        attempts: 1,
      },
    ];
    const publishing = createVideoPublishingModule({
      store: {
        claimJob: async () => null,
        findUpload: async () => upload,
        markCompleted: async () => {},
        markFailed: async () => {},
        findDueUploads: async () => [upload],
        findJobs: async () => jobs,
        updateUploadStatus: async (_upload, status) => { updates.push(status); },
      },
      publishers: {
        youtube: async () => ({ id: "video", url: "url" }),
        tiktok: async () => ({ id: "video", url: "url" }),
      },
      notify: async () => {},
    });

    await publishing.processDue();

    expect(updates).toEqual(["partial"]);
  });

  test("does not fail publishing when lifecycle notification fails", async () => {
    const { job, upload } = fixture();
    const notificationErrors: unknown[] = [];
    const publishing = createVideoPublishingModule({
      store: {
        claimJob: async () => {
          job.status = "processing";
          return job;
        },
        findUpload: async () => upload,
        markCompleted: async (nextJob) => { nextJob.status = "completed"; },
        markFailed: async (nextJob) => { nextJob.status = "failed"; },
        findDueUploads: async () => [],
        findJobs: async () => [job],
        updateUploadStatus: async () => {},
      },
      publishers: {
        youtube: async () => ({ id: "video", url: "url" }),
        tiktok: async () => ({ id: "video", url: "url" }),
      },
      notify: async () => { throw new Error("redis offline"); },
      reportNotificationFailure: (error) => notificationErrors.push(error),
    });

    await publishing.publishJob(job.id);

    expect(job.status).toBe("completed");
    expect(notificationErrors).toHaveLength(2);
  });
});