import { describe, it, expect, beforeAll, afterAll } from "vitest";
import PocketBase from "pocketbase";
import { randomBytes } from "node:crypto";

import { APP_URL, DEMO, adminPb, requireServices } from "./helpers";

let admin: PocketBase;
let projectId: string;
let inboxId: string;
let anotherProjectId: string;
let anotherInboxId: string;

const createdLinks: string[] = [];
const createdCards: string[] = [];

function makeToken(): string {
  return randomBytes(24).toString("base64url");
}

async function newLink(project: string, overrides: Record<string, unknown> = {}) {
  const token = makeToken();
  const link = await admin.collection("intake_links").create({
    project,
    label: "test",
    token,
    active: true,
    expires_at: "",
    max_submissions_per_day: 100,
    submission_count: 0,
    submission_count_today: 0,
    submission_count_today_date: "",
    last_submission_at: "",
    notes: "",
    ...overrides,
  });
  createdLinks.push(link.id);
  return link;
}

beforeAll(async () => {
  await requireServices();
  admin = await adminPb();

  const project = await admin
    .collection("projects")
    .getFirstListItem(`slug = "${DEMO.projectSlug}"`);
  projectId = project.id;

  inboxId = (
    await admin
      .collection("columns")
      .getFirstListItem(`project = "${projectId}" && is_inbox = true`)
  ).id;

  // A second project under the same demo client, so "another client's
  // project" can be tested. Uses the same admin pb; we delete at the end.
  const another = await admin.collection("projects").create({
    client: project.client,
    name: "Other",
    slug: `other-${Date.now()}`,
    status: "active",
    kind: "project",
  });
  anotherProjectId = another.id;

  // The schema doesn't auto-create an Inbox column for new projects; the test
  // owns the fixture it relies on.
  const anotherColumn = await admin.collection("columns").create({
    project: anotherProjectId,
    name: "Inbox",
    position: 1000,
    is_inbox: true,
  });
  anotherInboxId = anotherColumn.id;
});

afterAll(async () => {
  for (const id of createdCards) {
    await admin.collection("cards").delete(id).catch(() => {});
  }
  for (const id of createdLinks) {
    await admin.collection("intake_links").delete(id).catch(() => {});
  }
  await admin.collection("projects").delete(anotherProjectId).catch(() => {});
});

const brief = {
  title: "Add a public-facing intake",
  summary: "Anonymous clients should be able to file requests.",
  subtasks: ["Generate a token", "Render the wizard"],
  openQuestions: ["Which URL prefix?"],
  area: "",
  degraded: false,
};

describe("a public token turns a brief into an Inbox card", () => {
  it("creates the card with created_by_role = anonymous", async () => {
    const link = await newLink(projectId);

    const response = await fetch(`${APP_URL}/api/public/intake`, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({
        token: link.token,
        brief,
        transcript: [{ question: "What?", answer: "A public form." }],
        sizeBand: "medium",
      }),
    });

    expect(response.status).toBe(201);
    const { card } = await response.json();
    createdCards.push(card.id);

    const created = await admin.collection("cards").getOne(card.id);
    expect(created.column).toBe(inboxId);
    expect(created.accepted).toBe(false);
    expect(created.created_by_role).toBe("anonymous");
    expect(created.created_by).toBe("");
    expect(created.title).toBe(brief.title);
    expect(created.size_band).toBe("medium");
  });

  it("increments the lifetime counter", async () => {
    const link = await newLink(projectId);
    await fetch(`${APP_URL}/api/public/intake`, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({
        token: link.token,
        brief,
        transcript: [],
      }),
    });

    const reloaded = await admin.collection("intake_links").getOne(link.id);
    expect(reloaded.submission_count).toBe(1);
    expect(reloaded.last_submission_at).not.toBe("");
  });
});

describe("the public route decides the fields that matter", () => {
  it("ignores an escalating brief entirely", async () => {
    const link = await newLink(projectId);

    const response = await fetch(`${APP_URL}/api/public/intake`, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({
        token: link.token,
        brief: { ...brief, priority: "critical", accepted: true, column: anotherInboxId },
        transcript: [],
        sizeBand: "large",
        priority: "critical",
        accepted: true,
        column: anotherInboxId,
        created_by_role: "owner",
        created_by: "fake-user-id",
      }),
    });

    expect(response.status).toBe(201);
    const { card } = await response.json();
    createdCards.push(card.id);

    const created = await admin.collection("cards").getOne(card.id);
    expect(created.column).toBe(inboxId);
    expect(created.priority).toBe("medium");
    expect(created.accepted).toBe(false);
    expect(created.created_by_role).toBe("anonymous");
    expect(created.created_by).toBe("");
  });
});

describe("bad tokens are 404, not 403", () => {
  it("refuses an unknown token", async () => {
    const response = await fetch(`${APP_URL}/api/public/intake`, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({
        token: makeToken(),
        brief,
        transcript: [],
      }),
    });
    expect(response.status).toBe(404);
  });

  it("refuses a revoked token", async () => {
    const link = await newLink(projectId, { active: false });

    const response = await fetch(`${APP_URL}/api/public/intake`, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({ token: link.token, brief, transcript: [] }),
    });
    expect(response.status).toBe(404);
  });

  it("refuses an expired token", async () => {
    const link = await newLink(projectId, { expires_at: "2000-01-01 00:00:00.000Z" });

    const response = await fetch(`${APP_URL}/api/public/intake`, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({ token: link.token, brief, transcript: [] }),
    });
    expect(response.status).toBe(404);
  });

  it("refuses a malformed token shape", async () => {
    const response = await fetch(`${APP_URL}/api/public/intake`, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({
        token: "not-a-real-token",
        brief,
        transcript: [],
      }),
    });
    expect(response.status).toBe(404);
  });
});

describe("the public route is not a project-scope escape hatch", () => {
  it("refuses to use a token that points at a project whose inbox is gone", async () => {
    // Re-create a link to a project, then delete that project. The link
    // cascades away, so a follow-up submission gets 404 just like any
    // unknown token.
    const victim = await admin.collection("projects").create({
      client: (await admin.collection("projects").getOne(projectId)).client,
      name: "Victim",
      slug: `victim-${Date.now()}`,
      status: "active",
      kind: "project",
    });
    const token = makeToken();
    await admin.collection("intake_links").create({
      project: victim.id,
      label: "x",
      token,
      active: true,
      expires_at: "",
      max_submissions_per_day: 100,
      submission_count: 0,
      submission_count_today: 0,
      submission_count_today_date: "",
      last_submission_at: "",
      notes: "",
    });
    await admin.collection("projects").delete(victim.id);

    const response = await fetch(`${APP_URL}/api/public/intake`, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({ token, brief, transcript: [] }),
    });
    expect(response.status).toBe(404);
  });
});

describe("the activity log records anonymous submissions", () => {
  it("writes a card_submitted_anonymously row", async () => {
    const link = await newLink(projectId);

    const response = await fetch(`${APP_URL}/api/public/intake`, {
      method: "POST",
      headers: { "content-type": "application/json" },
      body: JSON.stringify({ token: link.token, brief, transcript: [] }),
    });
    const { card } = await response.json();
    createdCards.push(card.id);

    const rows = await admin
      .collection("activity")
      .getFullList({ filter: `card = "${card.id}" && action = "card_submitted_anonymously"` });
    expect(rows.length).toBe(1);
  });
});