using Xunit;
using FluentAssertions;
using Microsoft.Extensions.DependencyInjection;
using MongoDB.Driver;
using BCards.Web.Models;
using BCards.Web.ViewModels;
using BCards.IntegrationTests.Fixtures;
using BCards.IntegrationTests.Helpers;
using System.Net.Http.Json;

namespace BCards.IntegrationTests.Tests;

public class PageCreationTests : IClassFixture<BCardsWebApplicationFactory>, IAsyncLifetime
{
    private readonly BCardsWebApplicationFactory _factory;
    private readonly HttpClient _client;
    private MongoDbTestFixture _dbFixture = null!;

    public PageCreationTests(BCardsWebApplicationFactory factory)
    {
        _factory = factory;
        _client = _factory.CreateClient();
    }

    public async Task InitializeAsync()
    {
        using var scope = _factory.Services.CreateScope();
        var database = scope.ServiceProvider.GetRequiredService<IMongoDatabase>();
        _dbFixture = new MongoDbTestFixture(database);
        
        await _factory.CleanDatabaseAsync();
        await _dbFixture.InitializeTestDataAsync();
    }

    public Task DisposeAsync() => Task.CompletedTask;

    [Fact]
    public async Task CreatePage_WithBasicPlan_ShouldAllowUpTo5Links()
    {
        // Arrange
        var user = await _dbFixture.CreateTestUserAsync(PlanType.Basic);
        var authenticatedClient = await AuthenticationHelper.CreateAuthenticatedClientAsync(_factory, user);

        // Act - Create a page with 5 links (should succeed)
        var pageData = new
        {
            DisplayName = "Test Business Page",
            Category = "tecnologia",
            BusinessType = "company",
            Bio = "A test business page",
            Slug = "test-business",
            SelectedTheme = "minimalist",
            Links = new[]
            {
                new { Title = "Website", Url = "https://example.com", Description = "Main website", Icon = "fas fa-globe" },
                new { Title = "Email", Url = "mailto:contact@example.com", Description = "Contact email", Icon = "fas fa-envelope" },
                new { Title = "Phone", Url = "tel:+5511999999999", Description = "Contact phone", Icon = "fas fa-phone" },
                new { Title = "LinkedIn", Url = "https://linkedin.com/company/example", Description = "LinkedIn profile", Icon = "fab fa-linkedin" },
                new { Title = "Instagram", Url = "https://instagram.com/example", Description = "Instagram profile", Icon = "fab fa-instagram" }
            }
        };

        var createResponse = await authenticatedClient.PostAsJsonAsync("/Admin/ManagePage", pageData);

        // Assert
        createResponse.IsSuccessStatusCode.Should().BeTrue("Basic plan should allow 5 links");

        // Verify page was created in database
        var createdPages = await _dbFixture.GetUserPagesAsync(user.Id);
        createdPages.Should().HaveCount(1);
        
        var createdPage = createdPages.First();
        createdPage.DisplayName.Should().Be("Test Business Page");
        createdPage.Category.Should().Be("tecnologia");
        createdPage.Status.Should().Be(PageStatus.Creating);
        createdPage.Links.Should().HaveCount(5);
    }

    [Fact]
    public async Task CreatePage_WithBasicPlanExceedingLimits_ShouldFail()
    {
        // Arrange
        var user = await _dbFixture.CreateTestUserAsync(PlanType.Basic);
        var authenticatedClient = await AuthenticationHelper.CreateAuthenticatedClientAsync(_factory, user);

        // Act - Try to create a page with 6 links (should fail for Basic plan)
        var pageData = new
        {
            DisplayName = "Test Page Exceeding Limits",
            Category = "tecnologia",
            BusinessType = "individual",
            Bio = "A test page with too many links",
            Slug = "test-exceeding",
            SelectedTheme = "minimalist",
            Links = new[]
            {
                new { Title = "Link 1", Url = "https://example1.com", Description = "Link 1", Icon = "fas fa-link" },
                new { Title = "Link 2", Url = "https://example2.com", Description = "Link 2", Icon = "fas fa-link" },
                new { Title = "Link 3", Url = "https://example3.com", Description = "Link 3", Icon = "fas fa-link" },
                new { Title = "Link 4", Url = "https://example4.com", Description = "Link 4", Icon = "fas fa-link" },
                new { Title = "Link 5", Url = "https://example5.com", Description = "Link 5", Icon = "fas fa-link" },
                new { Title = "Link 6", Url = "https://example6.com", Description = "Link 6", Icon = "fas fa-link" } // This should fail
            }
        };

        var createResponse = await authenticatedClient.PostAsJsonAsync("/Admin/ManagePage", pageData);

        // Assert
        createResponse.IsSuccessStatusCode.Should().BeFalse("Basic plan should not allow more than 5 links");

        // Verify no page was created
        var createdPages = await _dbFixture.GetUserPagesAsync(user.Id);
        createdPages.Should().BeEmpty();
    }

    [Fact]
    public async Task CreatePage_ShouldStartInCreatingStatus()
    {
        // Arrange
        var user = await _dbFixture.CreateTestUserAsync(PlanType.Basic);
        var authenticatedClient = await AuthenticationHelper.CreateAuthenticatedClientAsync(_factory, user);

        // Act
        var pageData = new
        {
            DisplayName = "New Page",
            Category = "pessoal",
            BusinessType = "individual",
            Bio = "Test page bio",
            Slug = "new-page",
            SelectedTheme = "minimalist",
            Links = new[]
            {
                new { Title = "Portfolio", Url = "https://myportfolio.com", Description = "My work", Icon = "fas fa-briefcase" }
            }
        };

        var createResponse = await authenticatedClient.PostAsJsonAsync("/Admin/ManagePage", pageData);

        // Assert
        createResponse.IsSuccessStatusCode.Should().BeTrue();

        var createdPages = await _dbFixture.GetUserPagesAsync(user.Id);
        var page = createdPages.First();
        
        page.Status.Should().Be(PageStatus.Creating);
        page.PreviewToken.Should().NotBeNullOrEmpty("Creating pages should have preview tokens");
        page.PreviewTokenExpiry.Should().BeAfter(DateTime.UtcNow.AddHours(3), "Preview token should be valid for ~4 hours");
    }

    [Fact]
    public async Task CreatePage_WithTrialPlan_ShouldAllowOnePageOnly()
    {
        // Arrange
        var user = await _dbFixture.CreateTestUserAsync(PlanType.Trial);
        var authenticatedClient = await AuthenticationHelper.CreateAuthenticatedClientAsync(_factory, user);

        // Act - Create first page (should succeed)
        var firstPageData = new
        {
            DisplayName = "First Trial Page",
            Category = "pessoal",
            BusinessType = "individual",
            Bio = "First page in trial",
            Slug = "first-trial",
            SelectedTheme = "minimalist",
            Links = new[]
            {
                new { Title = "Website", Url = "https://example.com", Description = "My website", Icon = "fas fa-globe" }
            }
        };

        var firstResponse = await authenticatedClient.PostAsJsonAsync("/Admin/ManagePage", firstPageData);
        firstResponse.IsSuccessStatusCode.Should().BeTrue("Trial should allow first page");

        // Act - Try to create second page (should fail)
        var secondPageData = new
        {
            DisplayName = "Second Trial Page",
            Category = "tecnologia",
            BusinessType = "individual",
            Bio = "Second page in trial - should fail",
            Slug = "second-trial",
            SelectedTheme = "minimalist",
            Links = new[]
            {
                new { Title = "LinkedIn", Url = "https://linkedin.com/in/test", Description = "LinkedIn", Icon = "fab fa-linkedin" }
            }
        };

        var secondResponse = await authenticatedClient.PostAsJsonAsync("/Admin/ManagePage", secondPageData);

        // Assert
        secondResponse.IsSuccessStatusCode.Should().BeFalse("Trial should not allow second page");

        var createdPages = await _dbFixture.GetUserPagesAsync(user.Id);
        createdPages.Should().HaveCount(1, "Trial should only have one page");
    }

    [Fact]
    public async Task CreatePage_ShouldGenerateUniqueSlug()
    {
        // Arrange
        var user = await _dbFixture.CreateTestUserAsync(PlanType.Professional);
        var authenticatedClient = await AuthenticationHelper.CreateAuthenticatedClientAsync(_factory, user);

        // Create first page with specific slug
        await _dbFixture.CreateTestUserPageAsync(user.Id, PageStatus.Active, "tecnologia", 3, 1, "test-slug");

        // Act - Try to create another page with same name (should get different slug)
        var pageData = new
        {
            DisplayName = "Test Page", // Same display name, should generate different slug
            Category = "tecnologia",
            BusinessType = "individual",
            Bio = "Another test page",
            Slug = "test-slug", // Try to use same slug
            SelectedTheme = "minimalist",
            Links = new[]
            {
                new { Title = "Website", Url = "https://example.com", Description = "Website", Icon = "fas fa-globe" }
            }
        };

        var createResponse = await authenticatedClient.PostAsJsonAsync("/Admin/ManagePage", pageData);

        // Assert
        createResponse.IsSuccessStatusCode.Should().BeTrue();

        var userPages = await _dbFixture.GetUserPagesAsync(user.Id);
        userPages.Should().HaveCount(2);
        
        var slugs = userPages.Select(p => p.Slug).ToList();
        slugs.Should().OnlyHaveUniqueItems("All pages should have unique slugs");
        slugs.Should().Contain("test-slug");
        slugs.Should().Contain(slug => slug.StartsWith("test-slug-") || slug == "test-page");
    }
}