using System.Net;
using System.Net.Http.Json;
using JdeScoping.Api.Models;
using JdeScoping.Core.Models;
using Microsoft.AspNetCore.Mvc.Testing;
using Shouldly;

namespace JdeScoping.Api.IntegrationTests;

/// <summary>
/// Integration tests for authentication flow.
/// Note: These tests require a running test server with UseFakeAuth=true
/// </summary>
public class AuthenticationTests : IClassFixture<TestWebApplicationFactory>
{
    private readonly TestWebApplicationFactory _factory;
    private readonly HttpClient _client;

    public AuthenticationTests(TestWebApplicationFactory factory)
    {
        _factory = factory;
        _client = factory.CreateClient(new WebApplicationFactoryClientOptions
        {
            HandleCookies = true,
            AllowAutoRedirect = false
        });
    }

    [Fact]
    public async Task FullLoginLogoutFlow_WithCookies()
    {
        // Step 1: Login
        var loginRequest = new LoginRequest { Username = "testuser", Password = "testpass" };
        var loginResponse = await _client.PostAsJsonAsync("/api/auth/login", loginRequest);

        loginResponse.StatusCode.ShouldBe(HttpStatusCode.OK);
        var user = await loginResponse.Content.ReadFromJsonAsync<UserInfo>();
        user.ShouldNotBeNull();
        user.Username.ShouldBe("testuser");

        // Step 2: Verify we can access protected endpoint
        var meResponse = await _client.GetAsync("/api/auth/me");
        meResponse.StatusCode.ShouldBe(HttpStatusCode.OK);
        var meUser = await meResponse.Content.ReadFromJsonAsync<UserInfo>();
        meUser.ShouldNotBeNull();
        meUser.Username.ShouldBe("testuser");

        // Step 3: Logout
        var logoutResponse = await _client.PostAsync("/api/auth/logout", null);
        logoutResponse.StatusCode.ShouldBe(HttpStatusCode.OK);

        // Step 4: Verify protected endpoint returns 401 after logout
        var afterLogoutResponse = await _client.GetAsync("/api/auth/me");
        afterLogoutResponse.StatusCode.ShouldBe(HttpStatusCode.Unauthorized);
    }

    [Fact]
    public async Task ProtectedEndpoints_Return401_WithoutAuth()
    {
        // Use a fresh client without cookies (using factory to connect to test server)
        var freshClient = _factory.CreateClient(new WebApplicationFactoryClientOptions
        {
            HandleCookies = false,
            AllowAutoRedirect = false
        });

        // Search endpoints require auth
        var searchResponse = await freshClient.GetAsync("/api/search");
        searchResponse.StatusCode.ShouldBe(HttpStatusCode.Unauthorized);

        // Auth me endpoint requires auth
        var meResponse = await freshClient.GetAsync("/api/auth/me");
        meResponse.StatusCode.ShouldBe(HttpStatusCode.Unauthorized);
    }

    [Fact]
    public async Task ProtectedEndpoints_Work_WithAuthCookie()
    {
        // Login first
        var loginRequest = new LoginRequest { Username = "testuser", Password = "testpass" };
        var loginResponse = await _client.PostAsJsonAsync("/api/auth/login", loginRequest);
        loginResponse.StatusCode.ShouldBe(HttpStatusCode.OK);

        // Now search endpoint should work
        var searchResponse = await _client.GetAsync("/api/search");
        searchResponse.StatusCode.ShouldBe(HttpStatusCode.OK);
    }

    [Fact]
    public async Task LookupEndpoints_DoNotRequireAuth()
    {
        // Use a fresh client without cookies (using factory to connect to test server)
        var freshClient = _factory.CreateClient(new WebApplicationFactoryClientOptions
        {
            HandleCookies = false,
            AllowAutoRedirect = false
        });

        // Lookup endpoints should work without auth
        var itemsResponse = await freshClient.GetAsync("/api/lookup/items?q=test");
        itemsResponse.StatusCode.ShouldBe(HttpStatusCode.OK);

        var profitCentersResponse = await freshClient.GetAsync("/api/lookup/profit-centers?q=test");
        profitCentersResponse.StatusCode.ShouldBe(HttpStatusCode.OK);

        var workCentersResponse = await freshClient.GetAsync("/api/lookup/work-centers?q=test");
        workCentersResponse.StatusCode.ShouldBe(HttpStatusCode.OK);

        var operatorsResponse = await freshClient.GetAsync("/api/lookup/operators?q=test");
        operatorsResponse.StatusCode.ShouldBe(HttpStatusCode.OK);
    }
}