using System;
using System.IO;
using Paca.Browser.Profiles;
using Xunit;

namespace Paca.Tests.Browser;

public class ChromeIncognitoIsolationTests
{
    [Fact]
    public void EphemeralProfileManager_Creates_Isolated_Directory()
    {
        var mgr = new EphemeralProfileManager();
        var sessionId = Guid.NewGuid().ToString("N");

        var path = mgr.GetOrCreateEphemeralProfileDirectory(sessionId);
        Assert.True(Directory.Exists(path));
        Assert.Contains("Paca_Incognito_", Path.GetFileName(path));
        Assert.True(mgr.IsEphemeralPath(path));

        // Normal path should not be classified as ephemeral
        Assert.False(mgr.IsEphemeralPath(@"C:\Users\AppData\Local\Paca"));
        Assert.False(mgr.IsEphemeralPath(@"C:\Windows\System32"));

        // Cleanup
        var cleaned = mgr.CleanupEphemeralProfile(sessionId);
        Assert.True(cleaned);
        Assert.False(Directory.Exists(path));
    }

    [Fact]
    public void EphemeralProfileManager_Prevents_Path_Traversal()
    {
        var mgr = new EphemeralProfileManager();

        Assert.Throws<ArgumentException>((Action)(() => mgr.GetOrCreateEphemeralProfileDirectory("../../Windows")));
        Assert.Throws<ArgumentException>((Action)(() => mgr.GetOrCreateEphemeralProfileDirectory(@"..\..\AppData")));
        Assert.Throws<ArgumentException>((Action)(() => mgr.GetOrCreateEphemeralProfileDirectory("")));
        Assert.Throws<ArgumentException>((Action)(() => mgr.GetOrCreateEphemeralProfileDirectory("   ")));
    }

    [Fact]
    public void EphemeralProfileScope_Automatically_Cleans_Up_On_Dispose()
    {
        var mgr = new EphemeralProfileManager();
        string directoryPath;

        using (var scope = mgr.CreateEphemeralScope())
        {
            directoryPath = scope.ProfilePath;
            Assert.True(Directory.Exists(directoryPath));

            // Write dummy cookie / cache file
            var dummyFile = Path.Combine(directoryPath, "Cookies.db");
            File.WriteAllText(dummyFile, "dummy_incognito_tokens");
            Assert.True(File.Exists(dummyFile));
        }

        // After scope disposal, directory must be completely wiped
        Assert.False(Directory.Exists(directoryPath));
    }

    [Fact]
    public void EphemeralCookieJar_Isolates_Cookies_Between_Sessions()
    {
        var jarNormal = new EphemeralCookieJar();
        var jarIncognito = new EphemeralCookieJar();

        jarNormal.SetCookie("example.com", "session_token", "normal_user_token_12345");
        jarIncognito.SetCookie("example.com", "session_token", "incognito_anonymous_token_99999");

        Assert.Equal("normal_user_token_12345", jarNormal.GetCookie("example.com", "session_token"));
        Assert.Equal("incognito_anonymous_token_99999", jarIncognito.GetCookie("example.com", "session_token"));

        jarIncognito.Clear();
        Assert.Null(jarIncognito.GetCookie("example.com", "session_token"));
        Assert.NotNull(jarNormal.GetCookie("example.com", "session_token"));
    }
}