import type { Page, Request } from "@playwright/test";

/*
 * Scripted Media Studio backend for the project and review specs. No RPC can
 * seed an emulator library into a fresh space, so these specs answer the media
 * procedures they use with synthetic, schema-shaped data and record every call.
 */

export const PROJECT_ID = "proj-e2e";
export const SHORTS = "youtube-shorts";
export const PAID = "example-paid-video";
export const TIKTOK = "tiktok";

const at = (minute: number) => new Date(Date.UTC(2026, 9, 1, 10, minute)).toISOString();

function clip(id: string, assetId: string, inMs: number, outMs: number, atMs: number) {
  return {
    id,
    assetId,
    inMs,
    outMs,
    atMs,
    speed: 1,
    reframe: "auto",
    stabilize: false,
    muted: false,
  };
}

export function edl(profileId: string, width: number, height: number) {
  return {
    edlVersion: 1,
    output: {
      profileId,
      width,
      height,
      fps: 30,
      durationTargetMs: 12_000,
      durationHardMinMs: 3_000,
      durationHardMaxMs: 60_000,
    },
    tracks: {
      video: [
        clip("clip-1", "asset-1", 0, 4_000, 0),
        clip("clip-2", "asset-2", 0, 4_000, 4_000),
        clip("clip-3", "asset-3", 1_000, 4_000, 8_000),
      ],
      audio: [],
    },
    transitions: [],
    captions: { mode: "burned", maxCharsPerLine: 32, wordHighlight: false, position: "lower" },
    overlays: [{ id: "text-1", kind: "text", atMs: 500, durationMs: 2_000, text: "Wait for it" }],
    redactions: {
      faces: [
        {
          id: "face-1",
          target: { personId: "person-a" },
          mode: "partial_eyes",
          paddingPct: 20,
          featherPct: 10,
          minSizePct: 2,
        },
      ],
      marks: [{ markId: "mark-1", treatment: "cover" }],
      regions: [],
    },
    metadata: { title: "Teaser", tags: [], aiAltered: false, aiAlterations: [] },
  };
}

function plan(id: string, profileId: string, version: number, extra: Record<string, unknown> = {}) {
  const [width, height] = profileId === PAID ? [1920, 1080] : [1080, 1920];
  return {
    id,
    projectId: PROJECT_ID,
    profileId,
    version,
    edl: edl(profileId, width, height),
    createdBy: "user",
    rationale: null,
    createdAt: at(version),
    ...extra,
  };
}

const report = (profileId: string, issues: unknown[], passed: boolean, autoFixRound = 0) => ({
  profileId,
  passed,
  checkedAt: at(30),
  sampledFrames: 48,
  issues,
  autoFixRound,
});

function render(id: string, extra: Record<string, unknown>) {
  return {
    id,
    planId: "plan-shorts-1",
    projectId: PROJECT_ID,
    profileId: SHORTS,
    quality: "draft",
    status: "done",
    progress: 1,
    outputs: [
      { kind: "video", artifactId: null, fileName: "video.mp4", sizeBytes: 1_000_000 },
      { kind: "poster", artifactId: "art-poster", fileName: "poster.jpg", sizeBytes: 20_000 },
    ],
    gateReport: null,
    ffprobe: null,
    error: null,
    createdAt: at(20),
    updatedAt: at(21),
    ...extra,
  };
}

export const BLOCKED_ISSUES = [
  {
    check: "anonymization",
    severity: "block",
    code: "mask_coverage",
    message: "A face of Alex is not fully covered.",
    atMs: 5_000,
    endMs: 5_600,
    personId: "person-a",
  },
  {
    check: "content",
    severity: "block",
    code: "classifier_threshold",
    message: "Explicit nudity above the profile limit.",
    atMs: 2_000,
    category: "explicit_nudity",
    score: 0.9,
  },
  {
    check: "consent",
    severity: "block",
    code: "consent_missing",
    message: "Sam has no recorded consent.",
    atMs: 9_000,
    personId: "person-b",
  },
  {
    check: "anonymization",
    severity: "warn",
    code: "mark_residual",
    message: "The tattoo is faintly visible.",
    atMs: 10_000,
    endMs: 10_400,
    markId: "mark-1",
  },
  {
    check: "text",
    severity: "warn",
    code: "hashtags",
    message: "Fewer hashtags would read better.",
  },
];

/** Mutable backend state the mock answers from; specs read `calls` to assert requests. */
export function mediaBackend() {
  const plans: Record<string, unknown>[] = [
    plan("plan-shorts-1", SHORTS, 1),
    plan("plan-paid-1", PAID, 1),
    plan("plan-paid-2", PAID, 2, {
      createdBy: "agent",
      rationale: "Auto-fix 1/3 after the gate blocked (mask_coverage): widened the face mask",
    }),
  ];
  const renders: Record<string, unknown>[] = [
    render("render-shorts-draft", { gateReport: report(SHORTS, [], true) }),
    render("render-paid-draft", {
      planId: "plan-paid-1",
      profileId: PAID,
      status: "blocked",
      outputs: [],
      gateReport: report(PAID, BLOCKED_ISSUES, false, 1),
    }),
  ];
  const people = [
    {
      id: "person-a",
      displayName: "Alex",
      isSelf: false,
      confirmed: true,
      anonymizeByDefault: "partial_eyes",
      consentRecordedAt: at(1),
      consentArtifactId: null,
      ageVerifiedAt: at(1),
      ageVerificationMethod: "platform_verified",
      faceTrackCount: 3,
      coverThumbAssetId: null,
    },
    {
      id: "person-b",
      displayName: "Sam",
      isSelf: false,
      confirmed: true,
      anonymizeByDefault: "blur",
      consentRecordedAt: null,
      consentArtifactId: null,
      ageVerifiedAt: null,
      ageVerificationMethod: "none",
      faceTrackCount: 1,
      coverThumbAssetId: null,
    },
  ];
  const marks = [
    {
      id: "mark-1",
      kind: "tattoo",
      label: null,
      personId: "person-a",
      assetId: "asset-2",
      prompt: { tMs: 1_000, point: { x: 0.4, y: 0.6 } },
      treatment: "inpaint",
      qualityScore: 0.42,
      suggestedFallback: "cover",
      createdAt: at(2),
    },
  ];
  const calls: Array<{ procedure: string; input: Record<string, unknown> }> = [];
  /** Submissions answered with these errors first, then accepted. */
  const submitErrors: unknown[][] = [];
  let renderCounter = 0;
  let pollsUntilDone = 0;

  const project = {
    id: PROJECT_ID,
    title: "Harbor teaser",
    goal: "teaser",
    status: "review",
    brandKitId: null,
    collectionIds: [],
    profileIds: [SHORTS, PAID, TIKTOK],
    createdAt: at(0),
    updatedAt: at(0),
  };

  function advanceRenders() {
    for (const item of renders) {
      if (item.status !== "queued" && item.status !== "rendering") continue;
      if (pollsUntilDone > 0) {
        pollsUntilDone -= 1;
        item.status = "rendering";
        item.progress = 0.5;
        continue;
      }
      item.status = "done";
      item.progress = 1;
      item.outputs = [
        { kind: "video", artifactId: null, fileName: "video.mp4", sizeBytes: 2_000_000 },
      ];
      item.gateReport = report(String(item.profileId), [], true);
    }
  }

  const profiles = [
    [SHORTS, "YouTube Shorts", "free_social", false],
    [PAID, "Example paid video", "paid_video", false],
    [TIKTOK, "TikTok", "free_social", true],
  ].map(([id, name, kind, unverified]) => ({
    id,
    name,
    kind,
    origin: "builtin",
    unverified,
    stale: false,
    aspectRatios: id === PAID ? ["16:9"] : ["9:16"],
    hardMinMs: 1_000,
    hardMaxMs: 60_000,
    recommendedMs: [15_000],
  }));

  const handlers: Record<string, (input: Record<string, unknown>) => unknown> = {
    capabilities: () => ({
      configured: true,
      operations: {},
      accelerator: "cpu",
      hardwareEncoders: [],
    }),
    "profiles/list": () => profiles,
    "projects/get": () => {
      advanceRenders();
      return { project, plans, renders };
    },
    "projects/autoPlan": () => {
      const created = plan("plan-tiktok-1", TIKTOK, 1, { createdBy: "agent" });
      plans.push(created);
      return [created];
    },
    "assets/get": (input) => ({
      asset: {
        id: input.assetId,
        sourceId: "source-1",
        externalId: `${String(input.assetId)}.mp4`,
        kind: "video",
        storage: "referenced",
        capturedAt: at(0),
        durationMs: 6_000,
        width: 1920,
        height: 1080,
        fps: 30,
        gpsLat: null,
        gpsLon: null,
        deviceModel: null,
        albumNames: [],
        isFavorite: false,
        ingestState: "analyzed",
        hasProxy: true,
        hasThumbnail: true,
        qualityScore: 0.8,
        createdAt: at(0),
      },
      segments: [],
      faceTracks: [],
      transcript: null,
    }),
    "plans/submit": (input) => {
      const errors = submitErrors.shift();
      if (errors) return { ok: false, errors };
      const base = plans.find((item) => item.profileId === (input.edl as { output: { profileId: string } }).output.profileId);
      const version = plans.filter((item) => item.profileId === base?.profileId).length + 1;
      const created = {
        ...plan(`plan-saved-${version}`, String(base?.profileId), version),
        edl: input.edl,
      };
      plans.push(created);
      return { ok: true, plan: created };
    },
    "renders/start": (input) => {
      const source = plans.find((item) => item.id === input.planId);
      renderCounter += 1;
      const created = render(`render-new-${renderCounter}`, {
        planId: input.planId,
        profileId: source?.profileId,
        quality: input.quality,
        status: "queued",
        progress: 0,
        outputs: [],
        createdAt: at(40 + renderCounter),
      });
      renders.push(created);
      return created;
    },
    "renders/get": (input) => {
      advanceRenders();
      return renders.find((item) => item.id === input.renderId);
    },
    "renders/thumbnails": () =>
      ["a", "b", "c"].map((letter) => ({
        kind: "thumbnail",
        artifactId: `art-thumb-${letter}`,
        fileName: `thumb-${letter}.png`,
        sizeBytes: 10_000,
      })),
    "marketing/copy": (input) => ({
      profileId: SHORTS,
      language: input.language,
      title: "Harbor at dawn",
      hook: "You have never seen the harbor like this",
      caption: "Three minutes before sunrise.",
      hashtags: ["#harbor", "#sunrise"],
      issues: [],
    }),
    "people/list": () => people,
    "people/update": (input) => {
      const person = people.find((item) => item.id === input.personId);
      if (person && typeof input.anonymizeByDefault === "string") {
        person.anonymizeByDefault = input.anonymizeByDefault;
      }
      return person;
    },
    "marks/list": () => marks,
    "marks/update": (input) => {
      const mark = marks.find((item) => item.id === input.markId);
      if (mark && typeof input.treatment === "string") mark.treatment = input.treatment;
      return mark;
    },
    "marks/create": (input) => {
      const created = {
        id: `mark-${marks.length + 1}`,
        kind: input.kind,
        label: null,
        personId: null,
        assetId: input.assetId,
        prompt: input.prompt,
        treatment: input.treatment,
        qualityScore: 0.9,
        suggestedFallback: null,
        createdAt: at(50),
      };
      marks.push(created as (typeof marks)[number]);
      return created;
    },
  };

  return {
    calls,
    submitErrors,
    /** Let a started render report `rendering` for this many polls before it finishes. */
    holdRenders(polls: number) {
      pollsUntilDone = polls;
    },
    async install(page: Page) {
      await page.route("**/rpc/media/**", async (route) => {
        const request: Request = route.request();
        const procedure = new URL(request.url()).pathname.replace(/^.*\/rpc\/media\//, "");
        const handler = handlers[procedure];
        const body = (request.postDataJSON() ?? {}) as { json?: Record<string, unknown> };
        const input = body.json ?? {};
        calls.push({ procedure, input });
        if (!handler) {
          await route.fulfill({
            status: 404,
            contentType: "application/json",
            body: JSON.stringify({ json: { message: `unmocked ${procedure}` } }),
          });
          return;
        }
        await route.fulfill({
          status: 200,
          contentType: "application/json",
          body: JSON.stringify({ json: handler(input) }),
        });
      });
      // Byte routes: no synthetic media files are needed for these flows.
      await page.route("**/api/media/**", (route) => route.fulfill({ status: 404, body: "" }));
    },
  };
}