import assert from "node:assert/strict";
import test from "node:test";
import type { FastifyInstance } from "fastify";
import { buildApp } from "../src/app.js";
import { ApiError } from "../src/errors.js";
import type { CondoRepository } from "../src/repository.js";
import type {
  CreateUsageRecordInput,
  OwnerAccountQuery,
  UsageRecordQuery
} from "../src/types.js";

const ownerId = "00000000-0000-4000-8000-000000000001";
const usageId = "00000000-0000-4000-8000-000000000002";
const idempotencyKey = "00000000-0000-4000-8000-000000000003";
const authentication = {
  username: "wyndhamcondon",
  password: "wyndhamcondon",
  sessionTtlMs: 12 * 60 * 60 * 1_000,
  cookieSecure: false
};

function createRepository(
  overrides: Partial<CondoRepository> = {}
): CondoRepository {
  return {
    async health() {
      return {
        status: "ok",
        database: "booking_test",
        schema: "condon",
        migrationVersion: "001_create_condon_schema"
      };
    },
    async listRoomTypes() {
      return [
        {
          code: "RM1",
          entitlementTier: 1,
          requiresManualMultiplier: false
        },
        {
          code: "AC2",
          entitlementTier: null,
          requiresManualMultiplier: true
        }
      ];
    },
    async listOwnerAccounts(query: OwnerAccountQuery) {
      return {
        items: [],
        total: 0,
        page: query.page,
        pageSize: query.pageSize,
        periodYear: query.periodYear
      };
    },
    async getOwnerAccount() {
      return null;
    },
    async listUsageRecords(query: UsageRecordQuery) {
      return {
        items: [],
        total: 0,
        page: query.page,
        pageSize: query.pageSize
      };
    },
    async createUsageRecord(input: CreateUsageRecordInput) {
      return {
        id: usageId,
        confirmationNo: input.confirmationNo,
        ownerAccountId: input.ownerAccountId,
        ownerName: "Test Owner",
        ownerRoomNo: "3201",
        checkIn: input.checkIn,
        checkOut: input.checkOut,
        night: 2,
        use: 2,
        balance: 13,
        usedRoomType: input.usedRoomType,
        remark: input.remark,
        appliedMultiplier: 1,
        createdAt: "2026-07-29T00:00:00.000Z"
      };
    },
    async deleteUsageRecord() {},
    async getDashboard(periodYear: number) {
      return {
        periodYear,
        ownerRooms: 0,
        remainingPrivileges: 0,
        used: 0,
        purchasedRoomTypes: [],
        usedRoomTypes: [],
        monthlyUse: []
      };
    },
    async close() {},
    ...overrides
  };
}

async function buildAuthenticatedApp(repository: CondoRepository): Promise<{
  app: FastifyInstance;
  cookie: string;
}> {
  const app = await buildApp({ repository, authentication });
  const login = await app.inject({
    method: "POST",
    url: "/auth/login",
    payload: {
      username: authentication.username,
      password: authentication.password
    }
  });
  assert.equal(login.statusCode, 200);
  const setCookie = login.headers["set-cookie"];
  if (typeof setCookie !== "string") throw new Error("Missing session cookie");
  const cookie = setCookie.split(";", 1)[0];
  if (!cookie) throw new Error("Invalid session cookie");
  return { app, cookie };
}

test("authentication protects the API and logout invalidates the session", async t => {
  const app = await buildApp({
    repository: createRepository(),
    authentication
  });
  t.after(() => app.close());

  const anonymous = await app.inject({ method: "GET", url: "/health" });
  assert.equal(anonymous.statusCode, 401);
  assert.equal(anonymous.json().error.code, "UNAUTHORIZED");

  const initialSession = await app.inject({ method: "GET", url: "/auth/session" });
  assert.deepEqual(initialSession.json(), { authenticated: false });

  const rejected = await app.inject({
    method: "POST",
    url: "/auth/login",
    payload: { username: "wyndhamcondon", password: "incorrect" }
  });
  assert.equal(rejected.statusCode, 401);
  assert.equal(rejected.json().error.code, "INVALID_CREDENTIALS");
  assert.equal(rejected.headers["set-cookie"], undefined);

  const accepted = await app.inject({
    method: "POST",
    url: "/auth/login",
    payload: {
      username: authentication.username,
      password: authentication.password
    }
  });
  assert.equal(accepted.statusCode, 200);
  const setCookie = accepted.headers["set-cookie"];
  if (typeof setCookie !== "string") throw new Error("Missing session cookie");
  assert.match(setCookie, /^condon_session=[A-Za-z0-9_-]+;/);
  assert.match(setCookie, /HttpOnly/);
  assert.match(setCookie, /SameSite=Lax/);
  assert.match(setCookie, /Max-Age=43200/);
  assert.equal(setCookie.includes("Secure"), false);
  const cookie = setCookie.split(";", 1)[0];

  const activeSession = await app.inject({
    method: "GET",
    url: "/auth/session",
    headers: { cookie }
  });
  assert.equal(activeSession.json().authenticated, true);
  assert.equal(activeSession.json().user.username, authentication.username);
  assert.match(activeSession.json().expiresAt, /^\d{4}-\d{2}-\d{2}T/);

  const protectedResponse = await app.inject({
    method: "GET",
    url: "/health",
    headers: { cookie }
  });
  assert.equal(protectedResponse.statusCode, 200);
  assert.equal(protectedResponse.headers["cache-control"], "no-store");

  const logout = await app.inject({
    method: "POST",
    url: "/auth/logout",
    headers: { cookie }
  });
  assert.equal(logout.statusCode, 200);
  assert.equal(logout.json().authenticated, false);
  assert.match(String(logout.headers["set-cookie"]), /Max-Age=0/);

  const afterLogout = await app.inject({
    method: "GET",
    url: "/health",
    headers: { cookie }
  });
  assert.equal(afterLogout.statusCode, 401);

  const preflight = await app.inject({
    method: "OPTIONS",
    url: "/health",
    headers: {
      origin: "http://127.0.0.1:4173",
      "access-control-request-method": "GET"
    }
  });
  assert.equal(preflight.statusCode, 204);
  assert.equal(preflight.headers["access-control-allow-credentials"], "true");
});

test("health and room type contracts", async t => {
  const { app, cookie } = await buildAuthenticatedApp(createRepository());
  t.after(() => app.close());

  const health = await app.inject({ method: "GET", url: "/health", headers: { cookie } });
  assert.equal(health.statusCode, 200);
  assert.deepEqual(health.json(), {
    status: "ok",
    database: "booking_test",
    schema: "condon",
    migrationVersion: "001_create_condon_schema"
  });

  const roomTypes = await app.inject({ method: "GET", url: "/room-types", headers: { cookie } });
  assert.equal(roomTypes.statusCode, 200);
  assert.equal(roomTypes.json().length, 2);
  assert.deepEqual(roomTypes.json()[1], {
    code: "AC2",
    entitlementTier: null,
    requiresManualMultiplier: true
  });
});

test("owner account query applies pagination and period defaults", async t => {
  let captured: OwnerAccountQuery | undefined;
  const repository = createRepository({
    async listOwnerAccounts(query) {
      captured = query;
      return {
        items: [],
        total: 0,
        page: query.page,
        pageSize: query.pageSize,
        periodYear: query.periodYear
      };
    }
  });
  const { app, cookie } = await buildAuthenticatedApp(repository);
  t.after(() => app.close());

  const response = await app.inject({
    method: "GET",
    url: "/owner-accounts?q=3201&page=2&pageSize=10",
    headers: { cookie }
  });
  assert.equal(response.statusCode, 200);
  assert.deepEqual(captured, {
    query: "3201",
    roomType: undefined,
    periodYear: new Date().getUTCFullYear(),
    page: 2,
    pageSize: 10
  });
});

test("missing owner and malformed owner id return safe client errors", async t => {
  const { app, cookie } = await buildAuthenticatedApp(createRepository());
  t.after(() => app.close());

  const missing = await app.inject({
    method: "GET",
    url: `/owner-accounts/${ownerId}?year=2026`,
    headers: { cookie }
  });
  assert.equal(missing.statusCode, 404);
  assert.deepEqual(missing.json(), {
    error: {
      code: "NOT_FOUND",
      message: "Owner account not found"
    }
  });

  const malformed = await app.inject({
    method: "GET",
    url: "/owner-accounts/not-a-uuid",
    headers: { cookie }
  });
  assert.equal(malformed.statusCode, 400);
  assert.equal(malformed.json().error.code, "VALIDATION_ERROR");
});

test("usage creation normalizes optional inputs and returns 201", async t => {
  let captured: CreateUsageRecordInput | undefined;
  const base = createRepository();
  const repository = createRepository({
    async createUsageRecord(input) {
      captured = input;
      return base.createUsageRecord(input);
    }
  });
  const { app, cookie } = await buildAuthenticatedApp(repository);
  t.after(() => app.close());

  const response = await app.inject({
    method: "POST",
    url: "/usage-records",
    headers: { cookie },
    payload: {
      ownerAccountId: ownerId,
      confirmationNo: "26090001",
      checkIn: "2026-09-01",
      checkOut: "2026-09-03",
      usedRoomType: "RM1",
      idempotencyKey
    }
  });

  assert.equal(response.statusCode, 201);
  assert.deepEqual(captured, {
    ownerAccountId: ownerId,
    confirmationNo: "26090001",
    checkIn: "2026-09-01",
    checkOut: "2026-09-03",
    usedRoomType: "RM1",
    manualMultiplier: null,
    remark: "",
    idempotencyKey
  });
  assert.equal(response.json().use, 2);
  assert.equal(response.json().balance, 13);
});

test("invalid usage payload is rejected before repository access", async t => {
  let called = false;
  const repository = createRepository({
    async createUsageRecord(input) {
      called = true;
      return createRepository().createUsageRecord(input);
    }
  });
  const { app, cookie } = await buildAuthenticatedApp(repository);
  t.after(() => app.close());

  const response = await app.inject({
    method: "POST",
    url: "/usage-records",
    headers: { cookie },
    payload: {
      ownerAccountId: ownerId,
      confirmationNo: "ABC",
      checkIn: "2026-09-01",
      checkOut: "2026-09-03",
      usedRoomType: "RM1",
      idempotencyKey
    }
  });
  assert.equal(response.statusCode, 400);
  assert.equal(response.json().error.code, "VALIDATION_ERROR");
  assert.equal(called, false);
});

test("business errors retain safe status and code", async t => {
  const repository = createRepository({
    async createUsageRecord() {
      throw new ApiError(
        422,
        "INSUFFICIENT_BALANCE",
        "The owner account does not have enough stay privileges"
      );
    }
  });
  const { app, cookie } = await buildAuthenticatedApp(repository);
  t.after(() => app.close());

  const response = await app.inject({
    method: "POST",
    url: "/usage-records",
    headers: { cookie },
    payload: {
      ownerAccountId: ownerId,
      confirmationNo: "26090002",
      checkIn: "2026-09-01",
      checkOut: "2026-09-03",
      usedRoomType: "SU3",
      idempotencyKey
    }
  });
  assert.equal(response.statusCode, 422);
  assert.equal(response.json().error.code, "INSUFFICIENT_BALANCE");
  assert.equal(JSON.stringify(response.json()).includes("password"), false);
});

test("usage deletion validates the record id and returns no content", async t => {
  let captured: string | undefined;
  const repository = createRepository({
    async deleteUsageRecord(id) {
      captured = id;
    }
  });
  const { app, cookie } = await buildAuthenticatedApp(repository);
  t.after(() => app.close());

  const response = await app.inject({
    method: "DELETE",
    url: `/usage-records/${usageId}`,
    headers: { cookie }
  });
  assert.equal(response.statusCode, 204);
  assert.equal(response.body, "");
  assert.equal(captured, usageId);

  const malformed = await app.inject({
    method: "DELETE",
    url: "/usage-records/not-a-uuid",
    headers: { cookie }
  });
  assert.equal(malformed.statusCode, 400);
  assert.equal(malformed.json().error.code, "VALIDATION_ERROR");
});

test("dashboard and OpenAPI expose the planned surface", async t => {
  const { app, cookie } = await buildAuthenticatedApp(createRepository());
  t.after(() => app.close());

  const dashboard = await app.inject({
    method: "GET",
    url: "/dashboard?year=2026",
    headers: { cookie }
  });
  assert.equal(dashboard.statusCode, 200);
  assert.equal(dashboard.json().periodYear, 2026);

  const openApi = app.swagger();
  const paths = Object.keys(openApi.paths ?? {}).sort();
  assert.deepEqual(paths, [
    "/auth/login",
    "/auth/logout",
    "/auth/session",
    "/dashboard",
    "/health",
    "/owner-accounts",
    "/owner-accounts/{id}",
    "/room-types",
    "/usage-records",
    "/usage-records/{id}"
  ]);
});