using System;
using Paca.Mobile.Core;
using Xunit;

namespace Paca.Tests.Core;

public class PacaDeepLinkGateTests
{
    [Fact]
    public void Gate215_PacaDeepLinkParser_ParsesDownloadAction_WithValidParameters()
    {
        // Arrange
        var uri = "paca://download?url=https%3A%2F%2Fexample.com%2Fvideo%2F123&format=mp4&quality=1080p";

        // Act
        var success = PacaDeepLinkParser.TryParse(uri, out var action);

        // Assert
        Assert.True(success);
        Assert.NotNull(action);
        Assert.Equal(PacaDeepLinkActionType.Download, action!.ActionType);
        
        var downloadAction = Assert.IsType<PacaDownloadDeepLinkAction>(action);
        Assert.Equal("https://example.com/video/123", downloadAction.TargetUrl);
        Assert.Equal("mp4", downloadAction.Format);
        Assert.Equal("1080p", downloadAction.Quality);
    }

    [Fact]
    public void Gate216_PacaDeepLinkParser_ParsesPairingAction_WithConnectCode()
    {
        // Arrange
        var uri = "paca://pair?code=PACA-982341&host=192.168.1.100&port=5000";

        // Act
        var success = PacaDeepLinkParser.TryParse(uri, out var action);

        // Assert
        Assert.True(success);
        Assert.NotNull(action);
        Assert.Equal(PacaDeepLinkActionType.Pair, action!.ActionType);

        var pairAction = Assert.IsType<PacaPairDeepLinkAction>(action);
        Assert.Equal("PACA-982341", pairAction.ConnectCode);
        Assert.Equal("192.168.1.100", pairAction.Host);
        Assert.Equal(5000, pairAction.Port);
    }

    [Fact]
    public void Gate217_PacaDeepLinkParser_ParsesPlaybackAction_WithSeekTime()
    {
        // Arrange
        var uri = "paca://play?id=media-abc-123&t=145";

        // Act
        var success = PacaDeepLinkParser.TryParse(uri, out var action);

        // Assert
        Assert.True(success);
        Assert.NotNull(action);
        Assert.Equal(PacaDeepLinkActionType.Play, action!.ActionType);

        var playAction = Assert.IsType<PacaPlayDeepLinkAction>(action);
        Assert.Equal("media-abc-123", playAction.MediaId);
        Assert.Equal(145, playAction.SeekSeconds);
    }

    [Fact]
    public void Gate218_PacaDeepLinkParser_RejectsMaliciousOrInvalidSchemes()
    {
        // 1. Invalid scheme
        Assert.False(PacaDeepLinkParser.TryParse("https://example.com/download", out _));
        Assert.False(PacaDeepLinkParser.TryParse("javascript:alert(1)", out _));

        // 2. Local file exploit attempt inside download URL
        Assert.False(PacaDeepLinkParser.TryParse("paca://download?url=file%3A%2F%2F%2FC%3A%2Fsecret.txt", out _));

        // 3. Unknown or dangerous action
        Assert.False(PacaDeepLinkParser.TryParse("paca://system?cmd=shutdown", out _));
        Assert.False(PacaDeepLinkParser.TryParse("paca://invalid_action", out _));

        // 4. Null or empty
        Assert.False(PacaDeepLinkParser.TryParse("", out _));
        Assert.False(PacaDeepLinkParser.TryParse(null!, out _));
    }
}