using System.Diagnostics;
using Microsoft.Playwright;

namespace OpenTheBox.Web.Tests;

/// <summary>
/// Shared fixture that starts the Blazor WASM dev server and Playwright browser once per test collection.
/// </summary>
public class WebAppFixture : IAsyncLifetime
{
    private Process? _serverProcess;
    public IBrowser Browser { get; private set; } = null!;
    public IPlaywright Playwright { get; private set; } = null!;
    public string BaseUrl { get; private set; } = "http://localhost:5280";

    public async Task InitializeAsync()
    {
        // Start the Blazor WASM dev server
        _serverProcess = new Process
        {
            StartInfo = new ProcessStartInfo
            {
                FileName = "dotnet",
                Arguments = $"run --project src/OpenTheBox.Web --urls {BaseUrl}",
                WorkingDirectory = FindSolutionRoot(),
                RedirectStandardOutput = true,
                RedirectStandardError = true,
                UseShellExecute = false,
                CreateNoWindow = true
            }
        };
        _serverProcess.Start();

        // Wait for the server to be ready (try connecting)
        using var httpClient = new HttpClient();
        for (int i = 0; i < 120; i++) // up to 2 minutes for WASM compilation
        {
            try
            {
                var response = await httpClient.GetAsync(BaseUrl);
                if (response.IsSuccessStatusCode) break;
            }
            catch { }
            await Task.Delay(1000);
        }

        // Initialize Playwright
        Playwright = await Microsoft.Playwright.Playwright.CreateAsync();
        Browser = await Playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions
        {
            Headless = true,
            Args = ["--window-size=1400,900"]
        });
    }

    public async Task DisposeAsync()
    {
        await Browser.DisposeAsync();
        Playwright.Dispose();

        if (_serverProcess is { HasExited: false })
        {
            _serverProcess.Kill(entireProcessTree: true);
            _serverProcess.Dispose();
        }
    }

    private static string FindSolutionRoot()
    {
        var dir = new DirectoryInfo(AppContext.BaseDirectory);
        while (dir != null)
        {
            if (dir.GetFiles("OpenTheBox.slnx").Length > 0)
                return dir.FullName;
            dir = dir.Parent;
        }
        throw new InvalidOperationException("Could not find solution root (OpenTheBox.slnx)");
    }
}

[CollectionDefinition("WebApp")]
public class WebAppCollection : ICollectionFixture<WebAppFixture>;