import { expect, spyOn, test } from "bun:test";
import { mkdtemp, rm } from "node:fs/promises";
import { tmpdir } from "node:os";
import { join } from "node:path";
import { newId, nowIso } from "@sttracker/db/ids";
import { forEachDialect } from "@sttracker/db/testing";
import { definePlugin, type SourcePlugin } from "@sttracker/plugin-sdk/types";
import { listAttachmentLinks, readAttachment, requireLinkTarget, storeAttachment } from "../src/attachments.ts";
import { createAppToken, listAppTokens, revokeAppToken } from "../src/auth.ts";
import { createConnection, deleteConnection, devicePoll, deviceStart, getConnection, listConnections, listRuns, syncHandler, updateConnection } from "../src/connections.ts";
import { startScheduler } from "../src/jobs.ts";
import { DropJobError } from "../src/jobs.ts";
import { listSuggestions, quickAdd } from "../src/entries.ts";
import { addEngagement } from "../src/engagements.ts";
import { NotFoundError, ValidationError } from "../src/errors.ts";
import type { PluginRegistry } from "../src/registry.ts";
import { loadPlugins } from "../src/registry.ts";
import { makeUser, makeWork } from "./user-layer-fixtures.ts";

const SECRET = "test-secret";
const warn = spyOn(console, "warn").mockImplementation(() => {});
const reg = await loadPlugins([join(import.meta.dir, "fixtures/plugins")]);
warn.mockRestore();
const echo = reg.get("echo")!;

const fileish: SourcePlugin = definePlugin({
  manifest: { id: "fileish", name: "Fileish", version: "1", sdkVersion: 1, mediaTypes: ["book"], capabilities: ["importFile"], config: [] },
  async *importFile(_ctx, file) {
    yield {
      kind: "entry",
      key: file.name,
      raw: new TextDecoder().decode(file.bytes),
      work: { title: new TextDecoder().decode(file.bytes), mediaType: "book", externalIds: { isbn13: "9780000000009" } },
      entry: { status: "planned" },
    };
  },
  deviceAuth: {
    start: async () => ({ userCode: "ABCD", verificationUrl: "https://x.test/device", deviceCode: "dc", intervalSec: 5, expiresInSec: 600 }),
    poll: async (_ctx, deviceCode) => (deviceCode === "dc" ? { access_token: "tok" } : "pending"),
  },
});
const reg2: PluginRegistry = { get: (id) => (id === "fileish" ? fileish : reg.get(id)), list: () => [...reg.list(), fileish.manifest], reload: async () => {} };

forEachDialect("api support", (getDb) => {
  test("listAppTokens returns metadata only, revoked flagged, scoped to user", async () => {
    const db = getDb();
    const u = await makeUser(db);
    const other = await makeUser(db, "bob");
    const t = await createAppToken(db, u, "script", ["read"]);
    await createAppToken(db, other, "x", ["write"]);
    await revokeAppToken(db, u, t.id);
    const list = await listAppTokens(db, u);
    expect(list).toHaveLength(1);
    expect(list[0]).toMatchObject({ id: t.id, name: "script", scopes: ["read"], lastUsedAt: null });
    expect(list[0]!.revokedAt).not.toBeNull();
    expect(JSON.stringify(list)).not.toContain("hash");
  });

  test("listSuggestions lists pending suggestions for a visible work", async () => {
    const db = getDb();
    const u = await makeUser(db);
    const draft = await quickAdd(db, u, { title: "Dune??", mediaType: "book" });
    const good = await makeWork(db, { title: "Dune", externalIds: { isbn13: "1" } });
    await db.k
      .insertInto("match_suggestions")
      .values({ id: newId(), user_id: u, work_id: draft.workId, candidate_work_id: good, score: 0.75, status: "pending", created_at: nowIso() })
      .execute();
    const s = await listSuggestions(db, u, draft.workId);
    expect(s).toHaveLength(1);
    expect(s[0]).toMatchObject({ workId: draft.workId, candidateWorkId: good, score: 0.75, status: "pending" });
    const other = await makeUser(db, "bob");
    await expect(listSuggestions(db, other, draft.workId)).rejects.toBeInstanceOf(NotFoundError);
  });

  test("requireLinkTarget checks ownership per entity; links and filename are readable", async () => {
    const db = getDb();
    const dir = await mkdtemp(join(tmpdir(), "stt-att-"));
    try {
      const u = await makeUser(db);
      const bob = await makeUser(db, "bob");
      const e = await quickAdd(db, u, { title: "Dune" });
      const g = await addEngagement(db, u, e.id, {}, "user");
      await requireLinkTarget(db, u, "entry", e.id);
      await requireLinkTarget(db, u, "engagement", g.id);
      await requireLinkTarget(db, u, "work", e.workId);
      await expect(requireLinkTarget(db, bob, "entry", e.id)).rejects.toBeInstanceOf(NotFoundError);
      await expect(requireLinkTarget(db, bob, "engagement", g.id)).rejects.toBeInstanceOf(NotFoundError);
      await expect(requireLinkTarget(db, bob, "work", e.workId)).rejects.toBeInstanceOf(NotFoundError);
      await expect(requireLinkTarget(db, u, "nope" as never, e.id)).rejects.toBeInstanceOf(ValidationError);
      const a = await storeAttachment(db, dir, u, { bytes: new Uint8Array([1]), mime: "image/png", filename: "a.png" }, { entity: "entry", entityId: e.id });
      const links = await listAttachmentLinks(db, u, a.id);
      expect(links).toEqual([{ id: expect.any(String), entity: "entry", entityId: e.id }]);
      expect(await listAttachmentLinks(db, bob, a.id)).toEqual([]);
      expect((await readAttachment(db, dir, u, a.id))?.filename).toBe("a.png");
    } finally {
      await rm(dir, { recursive: true, force: true });
    }
  });

  test("getConnection hides other users and deleted connections; listRuns is newest first", async () => {
    const db = getDb();
    const u = await makeUser(db);
    const bob = await makeUser(db, "bob");
    const id = await createConnection(db, SECRET, u, { pluginId: "echo", name: "E", config: {} }, echo.manifest);
    expect((await getConnection(db, u, id)).pluginId).toBe("echo");
    await expect(getConnection(db, bob, id)).rejects.toBeInstanceOf(NotFoundError);
    const sync = syncHandler({ db, secret: SECRET, registry: reg });
    await sync({ connectionId: id, mode: "full" });
    await sync({ connectionId: id, mode: "full" });
    const runs = await listRuns(db, u, id);
    expect(runs).toHaveLength(2);
    expect(runs[0]!.startedAt >= runs[1]!.startedAt).toBe(true);
    expect(runs[0]).toMatchObject({ mode: "full", status: "ok" });
    await expect(listRuns(db, bob, id)).rejects.toBeInstanceOf(NotFoundError);
    await deleteConnection(db, u, id);
    await expect(getConnection(db, u, id)).rejects.toBeInstanceOf(NotFoundError);
  });

  test("a paused connection without credentials stays listed and can be unpaused; a deleted one is gone", async () => {
    const db = getDb();
    const u = await makeUser(db);
    const id = await createConnection(db, SECRET, u, { pluginId: "echo", name: "E", config: {} }, echo.manifest);
    await updateConnection(db, SECRET, u, id, { status: "paused" }, echo.manifest);
    expect((await listConnections(db, u)).map((c) => c.id)).toEqual([id]);
    expect((await getConnection(db, u, id)).status).toBe("paused");
    await updateConnection(db, SECRET, u, id, { status: "active" }, echo.manifest);
    expect((await getConnection(db, u, id)).status).toBe("active");

    await deleteConnection(db, u, id);
    const row = await db.k.selectFrom("source_connections").selectAll().where("id", "=", id).executeTakeFirstOrThrow();
    expect(row).toMatchObject({ status: "paused", credentials_enc: null });
    expect(row.deleted_at).not.toBeNull();
    expect(await listConnections(db, u)).toEqual([]);
    await expect(getConnection(db, u, id)).rejects.toBeInstanceOf(NotFoundError);
    await expect(updateConnection(db, SECRET, u, id, { status: "active" }, echo.manifest)).rejects.toBeInstanceOf(NotFoundError);
    await expect(deleteConnection(db, u, id)).rejects.toBeInstanceOf(NotFoundError);
  });

  test("deleted connections are never scheduled and their queued syncs are dropped", async () => {
    const db = getDb();
    const u = await makeUser(db);
    const id = await createConnection(db, SECRET, u, { pluginId: "echo", name: "E", config: {}, scheduleMinutes: 1 }, echo.manifest);
    // Simulate a delete that left status "error" (e.g. a row edited by hand): deleted_at alone must exclude it.
    await deleteConnection(db, u, id);
    await db.k.updateTable("source_connections").set({ status: "error" }).where("id", "=", id).execute();
    const sched = startScheduler(db, { tickMs: 3_600_000 });
    await sched.tickNow();
    sched.stop();
    expect(await db.k.selectFrom("jobs").select("id").execute()).toEqual([]);
    const sync = syncHandler({ db, secret: SECRET, registry: reg });
    await expect(sync({ connectionId: id })).rejects.toBeInstanceOf(DropJobError);
  });

  test("syncHandler runs file mode from a base64 payload", async () => {
    const db = getDb();
    const u = await makeUser(db);
    const id = await createConnection(db, SECRET, u, { pluginId: "fileish", name: "F", config: {} }, fileish.manifest);
    const sync = syncHandler({ db, secret: SECRET, registry: reg2 });
    const s = await sync({ connectionId: id, file: { name: "x.txt", base64: Buffer.from("Dune").toString("base64") } });
    expect(s).toMatchObject({ status: "ok" });
    expect((await listRuns(db, u, id))[0]!.mode).toBe("file");
    const entries = await db.k.selectFrom("entries").select("id").where("user_id", "=", u).execute();
    expect(entries).toHaveLength(1);
  });

  test("deviceStart and devicePoll store credentials on success", async () => {
    const db = getDb();
    const u = await makeUser(db);
    const id = await createConnection(db, SECRET, u, { pluginId: "fileish", name: "F", config: {} }, fileish.manifest);
    expect(await deviceStart(db, SECRET, reg2, u, id)).toMatchObject({ userCode: "ABCD", deviceCode: "dc" });
    expect(await devicePoll(db, SECRET, reg2, u, id, "other")).toBe("pending");
    expect(await devicePoll(db, SECRET, reg2, u, id, "dc")).toBe("connected");
    expect(await getConnection(db, u, id)).toMatchObject({ hasCredentials: true });
    const e = await createConnection(db, SECRET, u, { pluginId: "echo", name: "E", config: {} }, echo.manifest);
    await expect(deviceStart(db, SECRET, reg2, u, e)).rejects.toBeInstanceOf(ValidationError);
  });
});