import { randomUUID } from "node:crypto";
import { afterAll, beforeAll, describe, expect, it } from "vitest";
import { bootstrapUserSpace } from "./bootstrap-user.js";
import { createDb, type PrismaClient } from "./client.js";
import { createGroupRepos } from "./groups.js";
import {
  addMainConversationMembers,
  ensureMainBot,
  ensureMainConversation,
  findMainBotId,
  joinMainConversation,
  loadUserContext,
  MAIN_BOT_SPAWN_KEY,
  PROJECT_MAIN_BOT_DEFAULTS,
} from "./main-agent.js";
import { createRepos } from "./repos.js";
import { requireMembership } from "./scope.js";
import { createSpaceForMember } from "./spaces.js";

const databaseUrl = process.env.DATABASE_URL;
const describePostgres =
  process.env.VERIFY_DATABASE && databaseUrl ? describe.sequential : describe.skip;

const signupEnv = { signupsEnabled: "true", signupAllowlist: "" };

describePostgres("main agent and main conversation (PostgreSQL)", () => {
  let prisma: PrismaClient;
  let close: () => Promise<void>;
  const userIds: string[] = [];

  async function newUser(name = "Ada") {
    // bootstrapUserSpace derives the organization slug from the first 12 characters.
    const id = `ma${randomUUID().replaceAll("-", "")}`;
    userIds.push(id);
    await prisma.user.create({ data: { id, name, email: `${id}@rakazo.test` } });
    const { spaceId } = await bootstrapUserSpace(prisma, { id }, signupEnv, {
      claimDeploymentOwner: false,
    });
    return { userId: id, homeSpaceId: spaceId };
  }

  beforeAll(() => {
    const db = createDb(databaseUrl!);
    prisma = db.prisma;
    close = async () => {
      await db.prisma.$disconnect();
      await db.pool.end();
    };
  });

  afterAll(async () => {
    if (!prisma) return;
    const memberships = await prisma.member.findMany({
      where: { userId: { in: userIds } },
      select: { organizationId: true },
    });
    await prisma.organization.deleteMany({
      where: { id: { in: memberships.map((member) => member.organizationId) } },
    });
    await prisma.user.deleteMany({ where: { id: { in: userIds } } });
    await close();
  });

  it("creates one main bot in the home space, even under concurrent calls", async () => {
    const { userId, homeSpaceId } = await newUser();
    const results = await Promise.all([
      ensureMainBot(prisma, userId),
      ensureMainBot(prisma, userId),
      ensureMainBot(prisma, userId),
    ]);
    expect(new Set(results.map((bot) => bot.id)).size).toBe(1);
    const bots = await prisma.bot.findMany({ where: { userId } });
    expect(bots).toHaveLength(1);
    expect(bots[0]).toMatchObject({
      kind: "main",
      spaceId: homeSpaceId,
      spawnKey: MAIN_BOT_SPAWN_KEY,
      name: "Chief",
    });
    expect(await findMainBotId(prisma, userId)).toBe(bots[0]?.id);
  });

  it("gives every project its own main bot and main conversation next to the home one", async () => {
    const { userId, homeSpaceId } = await newUser();
    const home = await ensureMainConversation(prisma, userId);
    const project = await createSpaceForMember(prisma, {
      currentSpaceId: homeSpaceId,
      userId,
      name: "Launch",
    });
    const [a, b] = await Promise.all([
      ensureMainConversation(prisma, userId, project.id),
      ensureMainConversation(prisma, userId, project.id),
    ]);
    expect(a.groupId).toBe(b.groupId);
    expect(a).toMatchObject({ spaceId: project.id });
    expect(a.groupId).not.toBe(home.groupId);
    expect(a.leadBotId).not.toBe(home.leadBotId);

    const lead = await prisma.bot.findUniqueOrThrow({ where: { id: a.leadBotId } });
    expect(lead).toMatchObject({
      kind: "main",
      spaceId: project.id,
      spawnKey: null,
      name: PROJECT_MAIN_BOT_DEFAULTS.name,
      title: PROJECT_MAIN_BOT_DEFAULTS.title,
    });
    expect(await findMainBotId(prisma, userId)).toBe(home.leadBotId);
    expect(await findMainBotId(prisma, userId, project.id)).toBe(a.leadBotId);
    // The home conversation keeps its own main bot.
    expect(await ensureMainConversation(prisma, userId)).toEqual(home);
  });

  it("creates the main bot without the spawn key when another user holds it in a shared space", async () => {
    const owner = await newUser();
    const ownerMain = await ensureMainBot(prisma, owner.userId);
    const guestId = `ma${randomUUID().replaceAll("-", "")}`;
    userIds.push(guestId);
    await prisma.user.create({
      data: { id: guestId, name: "Guest", email: `${guestId}@rakazo.test` },
    });
    const organization = await prisma.space.findUniqueOrThrow({
      where: { id: owner.homeSpaceId },
      select: { organizationId: true },
    });
    // The organization's default-space trigger makes the guest a member of the owner's space.
    await prisma.member.create({
      data: {
        id: `member-${guestId}`,
        organizationId: organization.organizationId,
        userId: guestId,
        role: "member",
        createdAt: new Date(),
      },
    });
    const guestMain = await ensureMainBot(prisma, guestId);
    expect(guestMain.id).not.toBe(ownerMain.id);
    const guestBot = await prisma.bot.findUniqueOrThrow({ where: { id: guestMain.id } });
    expect(guestBot).toMatchObject({ kind: "main", userId: guestId, spawnKey: null });
  });

  it("promotes the first bot onboarding already created instead of adding another", async () => {
    const { userId } = await newUser();
    const actor = await requireMembership(prisma, userId);
    const first = await createRepos(prisma).createBot(actor, {
      name: "Nova",
      title: "Chief of Staff",
      description: "",
      instructions: "",
      notifyOnFinish: true,
      spawnKey: MAIN_BOT_SPAWN_KEY,
    });
    expect(first.kind).toBe("specialist");
    const main = await ensureMainBot(prisma, userId);
    expect(main).toMatchObject({ id: first.id, name: "Nova" });
    expect(await prisma.bot.count({ where: { userId } })).toBe(1);
  });

  it("restores an archived main bot rather than retiring it", async () => {
    const { userId } = await newUser();
    const main = await ensureMainBot(prisma, userId);
    await prisma.bot.update({ where: { id: main.id }, data: { archivedAt: new Date() } });
    const again = await ensureMainBot(prisma, userId);
    expect(again.id).toBe(main.id);
    const row = await prisma.bot.findUniqueOrThrow({ where: { id: main.id } });
    expect(row.archivedAt).toBeNull();
  });

  it("creates one main conversation led by the main bot that lists with a single member", async () => {
    const { userId } = await newUser();
    const [a, b] = await Promise.all([
      ensureMainConversation(prisma, userId),
      ensureMainConversation(prisma, userId),
    ]);
    expect(a.groupId).toBe(b.groupId);
    const main = await ensureMainBot(prisma, userId);
    expect(a).toMatchObject({ leadBotId: main.id, spaceId: main.spaceId });

    const actor = await requireMembership(prisma, userId);
    const groups = await createGroupRepos(prisma).listGroups(actor);
    expect(groups).toHaveLength(1);
    expect(groups[0]).toMatchObject({
      id: a.groupId,
      kind: "main",
      leadBotId: main.id,
      members: [expect.objectContaining({ botId: main.id })],
    });
    await expect(createGroupRepos(prisma).getGroupTarget(actor, a.groupId)).resolves.toMatchObject({
      id: a.groupId,
    });
  });

  it("repairs a main conversation whose lead was lost or that was archived", async () => {
    const { userId } = await newUser();
    const conversation = await ensureMainConversation(prisma, userId);
    await prisma.chatGroup.update({
      where: { id: conversation.groupId },
      data: { leadBotId: null, archivedAt: new Date() },
    });
    const repaired = await ensureMainConversation(prisma, userId);
    expect(repaired.groupId).toBe(conversation.groupId);
    const row = await prisma.chatGroup.findUniqueOrThrow({ where: { id: conversation.groupId } });
    expect(row).toMatchObject({ leadBotId: conversation.leadBotId, archivedAt: null });
  });

  it("adds only active same-space bots of the same user, once", async () => {
    const { userId, homeSpaceId } = await newUser();
    const other = await newUser("Bo");
    const actor = await requireMembership(prisma, userId);
    const repos = createRepos(prisma);
    const specialist = await repos.createBot(actor, {
      name: "Researcher",
      title: "",
      description: "",
      instructions: "",
      notifyOnFinish: true,
    });
    const project = await createSpaceForMember(prisma, {
      currentSpaceId: homeSpaceId,
      userId,
      name: "Project",
    });
    const projectActor = await requireMembership(prisma, userId, project.id);
    const elsewhere = await repos.createBot(projectActor, {
      name: "Designer",
      title: "",
      description: "",
      instructions: "",
      notifyOnFinish: true,
    });
    const foreignActor = await requireMembership(prisma, other.userId);
    const foreign = await repos.createBot(foreignActor, {
      name: "Intruder",
      title: "",
      description: "",
      instructions: "",
      notifyOnFinish: true,
    });

    const added = await addMainConversationMembers(prisma, {
      userId,
      botIds: [specialist.id, elsewhere.id, foreign.id, specialist.id],
    });
    expect(added).toEqual([specialist.id]);
    expect(await addMainConversationMembers(prisma, { userId, botIds: [specialist.id] })).toEqual(
      [],
    );

    const conversation = await ensureMainConversation(prisma, userId);
    const members = await prisma.chatGroupMember.findMany({
      where: { groupId: conversation.groupId },
      select: { botId: true },
    });
    expect(members.map((member) => member.botId).sort()).toEqual(
      [conversation.leadBotId, specialist.id].sort(),
    );
  });

  it("announces joined members on the main conversation thread", async () => {
    const { userId } = await newUser();
    const actor = await requireMembership(prisma, userId);
    const specialist = await createRepos(prisma).createBot(actor, {
      name: "Analyst",
      title: "",
      description: "",
      instructions: "",
      notifyOnFinish: true,
    });
    const published: string[] = [];
    const realtime = {
      publish: async (topic: string) => {
        published.push(topic);
      },
      subscribe: async () => () => undefined,
    };
    expect(
      await joinMainConversation(prisma, { userId, botIds: [specialist.id] }, realtime as never),
    ).toEqual([specialist.id]);
    expect(
      await joinMainConversation(prisma, { userId, botIds: [specialist.id] }, realtime as never),
    ).toEqual([]);
    const conversation = await ensureMainConversation(prisma, userId);
    const events = await prisma.event.findMany({
      where: { threadId: conversation.threadId, type: "group.updated" },
    });
    expect(events).toHaveLength(1);
    expect(events[0]?.payload).toEqual({
      groupId: conversation.groupId,
      addedBotIds: [specialist.id],
    });
    expect(published).toHaveLength(1);
  });

  it("refuses to replace the main conversation's members through a group update", async () => {
    const { userId } = await newUser();
    const actor = await requireMembership(prisma, userId);
    const repos = createRepos(prisma);
    const one = await repos.createBot(actor, {
      name: "One",
      title: "",
      description: "",
      instructions: "",
      notifyOnFinish: true,
    });
    const two = await repos.createBot(actor, {
      name: "Two",
      title: "",
      description: "",
      instructions: "",
      notifyOnFinish: true,
    });
    const conversation = await ensureMainConversation(prisma, userId);
    await expect(
      createGroupRepos(prisma).updateGroup(actor, {
        groupId: conversation.groupId,
        botIds: [one.id, two.id],
      }),
    ).rejects.toThrow();
    await expect(
      createGroupRepos(prisma).updateGroup(actor, { groupId: conversation.groupId, pinned: true }),
    ).resolves.toMatchObject({ group: { kind: "main", pinned: true } });
  });

  it("hands runs only active facts visible in their space", async () => {
    const { userId, homeSpaceId } = await newUser();
    const project = await createSpaceForMember(prisma, {
      currentSpaceId: homeSpaceId,
      userId,
      name: "Project",
    });
    await prisma.userProfile.create({
      data: { userId, timeZone: "Europe/Berlin", locale: "de-DE", communicationStyle: "direct" },
    });
    await prisma.userFact.create({
      data: { userId, category: "work", value: "Builds evOo", source: "onboarding" },
    });
    await prisma.userFact.create({
      data: {
        userId,
        category: "health",
        value: "Pending sensitive fact",
        source: "conversation",
        status: "pending",
        sensitive: true,
      },
    });
    await prisma.userFact.create({
      data: {
        userId,
        category: "goals",
        value: "Ship the project",
        source: "user",
        allSpaces: false,
        visibleSpaces: { create: [{ spaceId: project.id }] },
      },
    });

    const home = await loadUserContext(prisma, { userId, spaceId: homeSpaceId });
    expect(home).toMatchObject({
      name: "Ada",
      timeZone: "Europe/Berlin",
      locale: "de-DE",
      communicationStyle: "direct",
    });
    expect(home.facts.map((fact) => fact.value)).toEqual(["Builds evOo"]);

    const inProject = await loadUserContext(prisma, { userId, spaceId: project.id });
    expect(inProject.facts.map((fact) => fact.value).sort()).toEqual(
      ["Builds evOo", "Ship the project"].sort(),
    );
  });
});