// ABOUTME: Unit tests for Garmin status API route.
// ABOUTME: Tests GET /api/garmin/status for connection status and token expiry.
import type { NextRequest } from "next/server";
import { NextResponse } from "next/server";
import { beforeEach, describe, expect, it, vi } from "vitest";

import type { User } from "@/types";

// Module-level variable to control mock user in tests
let currentMockUser: User | null = null;

// Create a mock PocketBase client that returns the current mock user
const createMockPb = () => ({
  collection: vi.fn(() => ({
    getOne: vi.fn(() =>
      Promise.resolve(
        currentMockUser
          ? {
              ...currentMockUser,
              garminTokenExpiresAt:
                currentMockUser.garminTokenExpiresAt?.toISOString(),
            }
          : null,
      ),
    ),
  })),
});

// Mock PocketBase
vi.mock("@/lib/pocketbase", () => ({
  createPocketBaseClient: vi.fn(() => createMockPb()),
}));

// Mock the auth-middleware module
vi.mock("@/lib/auth-middleware", () => ({
  withAuth: vi.fn((handler) => {
    return async (request: NextRequest) => {
      if (!currentMockUser) {
        return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
      }
      const mockPb = createMockPb();
      return handler(request, currentMockUser, mockPb);
    };
  }),
}));

import { GET } from "./route";

describe("GET /api/garmin/status", () => {
  beforeEach(() => {
    vi.clearAllMocks();
    currentMockUser = null;
  });

  it("returns 401 when not authenticated", async () => {
    currentMockUser = null;

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(401);
    const body = await response.json();
    expect(body.error).toBe("Unauthorized");
  });

  it("returns connected false when user has no tokens", async () => {
    currentMockUser = {
      id: "user123",
      email: "test@example.com",
      garminConnected: false,
      garminOauth1Token: "",
      garminOauth2Token: "",
      garminTokenExpiresAt: new Date("2025-01-01"),
      garminRefreshTokenExpiresAt: null,
      calendarToken: "cal-secret-token",
      lastPeriodDate: new Date("2025-01-15"),
      cycleLength: 28,
      notificationTime: "07:30",
      timezone: "America/New_York",
      activeOverrides: [],
      created: new Date("2024-01-01"),
      updated: new Date("2025-01-10"),
    };

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(200);
    const body = await response.json();
    expect(body.connected).toBe(false);
  });

  it("returns connected true when user has valid tokens", async () => {
    const futureDate = new Date();
    futureDate.setDate(futureDate.getDate() + 30);

    currentMockUser = {
      id: "user123",
      email: "test@example.com",
      garminConnected: true,
      garminOauth1Token: "encrypted-token",
      garminOauth2Token: "encrypted-token",
      garminTokenExpiresAt: futureDate,
      garminRefreshTokenExpiresAt: null,
      calendarToken: "cal-secret-token",
      lastPeriodDate: new Date("2025-01-15"),
      cycleLength: 28,
      notificationTime: "07:30",
      timezone: "America/New_York",
      activeOverrides: [],
      created: new Date("2024-01-01"),
      updated: new Date("2025-01-10"),
    };

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(200);
    const body = await response.json();
    expect(body.connected).toBe(true);
  });

  it("returns daysUntilExpiry when connected", async () => {
    const futureDate = new Date();
    futureDate.setDate(futureDate.getDate() + 30);

    currentMockUser = {
      id: "user123",
      email: "test@example.com",
      garminConnected: true,
      garminOauth1Token: "encrypted-token",
      garminOauth2Token: "encrypted-token",
      garminTokenExpiresAt: futureDate,
      garminRefreshTokenExpiresAt: null,
      calendarToken: "cal-secret-token",
      lastPeriodDate: new Date("2025-01-15"),
      cycleLength: 28,
      notificationTime: "07:30",
      timezone: "America/New_York",
      activeOverrides: [],
      created: new Date("2024-01-01"),
      updated: new Date("2025-01-10"),
    };

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(200);
    const body = await response.json();
    expect(body.daysUntilExpiry).toBeGreaterThanOrEqual(29);
    expect(body.daysUntilExpiry).toBeLessThanOrEqual(30);
  });

  it("returns null daysUntilExpiry when not connected", async () => {
    currentMockUser = {
      id: "user123",
      email: "test@example.com",
      garminConnected: false,
      garminOauth1Token: "",
      garminOauth2Token: "",
      garminTokenExpiresAt: new Date("2025-01-01"),
      garminRefreshTokenExpiresAt: null,
      calendarToken: "cal-secret-token",
      lastPeriodDate: new Date("2025-01-15"),
      cycleLength: 28,
      notificationTime: "07:30",
      timezone: "America/New_York",
      activeOverrides: [],
      created: new Date("2024-01-01"),
      updated: new Date("2025-01-10"),
    };

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(200);
    const body = await response.json();
    expect(body.daysUntilExpiry).toBeNull();
  });

  it("returns expired true when tokens have expired", async () => {
    const pastDate = new Date();
    pastDate.setDate(pastDate.getDate() - 5);

    currentMockUser = {
      id: "user123",
      email: "test@example.com",
      garminConnected: true,
      garminOauth1Token: "encrypted-token",
      garminOauth2Token: "encrypted-token",
      garminTokenExpiresAt: pastDate,
      garminRefreshTokenExpiresAt: null,
      calendarToken: "cal-secret-token",
      lastPeriodDate: new Date("2025-01-15"),
      cycleLength: 28,
      notificationTime: "07:30",
      timezone: "America/New_York",
      activeOverrides: [],
      created: new Date("2024-01-01"),
      updated: new Date("2025-01-10"),
    };

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(200);
    const body = await response.json();
    expect(body.connected).toBe(true);
    expect(body.expired).toBe(true);
    expect(body.daysUntilExpiry).toBeLessThan(0);
  });

  it("returns expired false when tokens are valid", async () => {
    const futureDate = new Date();
    futureDate.setDate(futureDate.getDate() + 30);

    currentMockUser = {
      id: "user123",
      email: "test@example.com",
      garminConnected: true,
      garminOauth1Token: "encrypted-token",
      garminOauth2Token: "encrypted-token",
      garminTokenExpiresAt: futureDate,
      garminRefreshTokenExpiresAt: null,
      calendarToken: "cal-secret-token",
      lastPeriodDate: new Date("2025-01-15"),
      cycleLength: 28,
      notificationTime: "07:30",
      timezone: "America/New_York",
      activeOverrides: [],
      created: new Date("2024-01-01"),
      updated: new Date("2025-01-10"),
    };

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(200);
    const body = await response.json();
    expect(body.expired).toBe(false);
  });

  it("returns warningLevel 'critical' when expiring in 7 days or less", async () => {
    const futureDate = new Date();
    futureDate.setDate(futureDate.getDate() + 5);

    currentMockUser = {
      id: "user123",
      email: "test@example.com",
      garminConnected: true,
      garminOauth1Token: "encrypted-token",
      garminOauth2Token: "encrypted-token",
      garminTokenExpiresAt: futureDate,
      garminRefreshTokenExpiresAt: null,
      calendarToken: "cal-secret-token",
      lastPeriodDate: new Date("2025-01-15"),
      cycleLength: 28,
      notificationTime: "07:30",
      timezone: "America/New_York",
      activeOverrides: [],
      created: new Date("2024-01-01"),
      updated: new Date("2025-01-10"),
    };

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(200);
    const body = await response.json();
    expect(body.warningLevel).toBe("critical");
  });

  it("returns warningLevel 'warning' when expiring in 8-14 days", async () => {
    const futureDate = new Date();
    futureDate.setDate(futureDate.getDate() + 10);

    currentMockUser = {
      id: "user123",
      email: "test@example.com",
      garminConnected: true,
      garminOauth1Token: "encrypted-token",
      garminOauth2Token: "encrypted-token",
      garminTokenExpiresAt: futureDate,
      garminRefreshTokenExpiresAt: null,
      calendarToken: "cal-secret-token",
      lastPeriodDate: new Date("2025-01-15"),
      cycleLength: 28,
      notificationTime: "07:30",
      timezone: "America/New_York",
      activeOverrides: [],
      created: new Date("2024-01-01"),
      updated: new Date("2025-01-10"),
    };

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(200);
    const body = await response.json();
    expect(body.warningLevel).toBe("warning");
  });

  it("returns warningLevel null when more than 14 days until expiry", async () => {
    const futureDate = new Date();
    futureDate.setDate(futureDate.getDate() + 30);

    currentMockUser = {
      id: "user123",
      email: "test@example.com",
      garminConnected: true,
      garminOauth1Token: "encrypted-token",
      garminOauth2Token: "encrypted-token",
      garminTokenExpiresAt: futureDate,
      garminRefreshTokenExpiresAt: null,
      calendarToken: "cal-secret-token",
      lastPeriodDate: new Date("2025-01-15"),
      cycleLength: 28,
      notificationTime: "07:30",
      timezone: "America/New_York",
      activeOverrides: [],
      created: new Date("2024-01-01"),
      updated: new Date("2025-01-10"),
    };

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(200);
    const body = await response.json();
    expect(body.warningLevel).toBeNull();
  });

  it("returns warningLevel null when not connected", async () => {
    currentMockUser = {
      id: "user123",
      email: "test@example.com",
      garminConnected: false,
      garminOauth1Token: "",
      garminOauth2Token: "",
      garminTokenExpiresAt: new Date("2025-01-01"),
      garminRefreshTokenExpiresAt: null,
      calendarToken: "cal-secret-token",
      lastPeriodDate: new Date("2025-01-15"),
      cycleLength: 28,
      notificationTime: "07:30",
      timezone: "America/New_York",
      activeOverrides: [],
      created: new Date("2024-01-01"),
      updated: new Date("2025-01-10"),
    };

    const mockRequest = {} as NextRequest;
    const response = await GET(mockRequest);

    expect(response.status).toBe(200);
    const body = await response.json();
    expect(body.warningLevel).toBeNull();
  });
});