namespace GmRelay.Bot.Tests.Web;

public sealed class MiniAppDashboardTests
{
    [Fact]
    public async Task MiniAppPage_ShouldExposeTelegramWebAppDashboardEntryPoint()
    {
        var miniAppPage = await File.ReadAllTextAsync(FindRepositoryFile("src/GmRelay.Web/Components/Pages/MiniApp.razor"));

        Assert.Contains("@page \"/miniapp\"", miniAppPage, StringComparison.Ordinal);
        Assert.Contains("authenticateTelegramMiniApp", miniAppPage, StringComparison.Ordinal);
        Assert.Contains("/auth/telegram-webapp", miniAppPage, StringComparison.Ordinal);
    }

    [Fact]
    public async Task AppShell_ShouldLoadTelegramWebAppScriptAndAuthenticator()
    {
        var appShell = await File.ReadAllTextAsync(FindRepositoryFile("src/GmRelay.Web/Components/App.razor"));

        Assert.Contains("telegram-web-app.js", appShell, StringComparison.Ordinal);
        Assert.Contains("window.authenticateTelegramMiniApp", appShell, StringComparison.Ordinal);
        Assert.Contains("Telegram.WebApp.initData", appShell, StringComparison.Ordinal);
    }

    [Fact]
    public async Task Program_ShouldMapTelegramWebAppAuthEndpoint()
    {
        var program = await File.ReadAllTextAsync(FindRepositoryFile("src/GmRelay.Web/Program.cs"));

        Assert.Contains("MapPost(\"/auth/telegram-webapp\"", program, StringComparison.Ordinal);
        Assert.Contains("VerifyWebAppInitData", program, StringComparison.Ordinal);
    }

    [Fact]
    public async Task Styles_ShouldIncludeMiniAppMobileDashboardRules()
    {
        var css = await File.ReadAllTextAsync(FindRepositoryFile("src/GmRelay.Web/wwwroot/app.css"));

        Assert.Contains("mini-app-page", css, StringComparison.Ordinal);
        Assert.Contains("mini-app-auth-card", css, StringComparison.Ordinal);
        Assert.Contains("@media (max-width: 768px)", css, StringComparison.Ordinal);
    }

    private static string FindRepositoryFile(string relativePath)
    {
        var directory = new DirectoryInfo(AppContext.BaseDirectory);
        while (directory is not null)
        {
            var candidate = Path.Combine(directory.FullName, relativePath);
            if (File.Exists(candidate))
            {
                return candidate;
            }

            directory = directory.Parent;
        }

        throw new FileNotFoundException($"Could not locate repository file '{relativePath}'.");
    }
}