using System;
using System.Linq;
using Paca.Browser;
using Paca.Browser.Pwa;
using Paca.Browser.Tabs;
using Xunit;

namespace Paca.Tests.Browser;

public class ChromeWebAppManifestTests
{
    [Fact]
    public void WebAppManifestParser_Parses_Standard_Manifest_Json()
    {
        var json = @"
{
  ""name"": ""YouTube Music"",
  ""short_name"": ""Music"",
  ""start_url"": ""/index.html"",
  ""display"": ""standalone"",
  ""theme_color"": ""#ff0000"",
  ""background_color"": ""#ffffff"",
  ""icons"": [
    {
      ""src"": ""/icons/icon-192.png"",
      ""sizes"": ""192x192"",
      ""type"": ""image/png""
    },
    {
      ""src"": ""https://cdn.example.com/icon-512.png"",
      ""sizes"": ""512x512"",
      ""type"": ""image/png""
    }
  ]
}";
        var baseUri = new Uri("https://music.youtube.com");
        var manifest = WebAppManifestParser.Parse(json, baseUri);

        Assert.NotNull(manifest);
        Assert.Equal("YouTube Music", manifest.Name);
        Assert.Equal("Music", manifest.ShortName);
        Assert.Equal("https://music.youtube.com/index.html", manifest.StartUrl);
        Assert.Equal("standalone", manifest.Display);
        Assert.Equal("#ff0000", manifest.ThemeColor);
        Assert.Equal("#ffffff", manifest.BackgroundColor);
        Assert.Equal(2, manifest.Icons.Count);
        Assert.Equal("https://music.youtube.com/icons/icon-192.png", manifest.Icons[0].Src);
        Assert.Equal("https://cdn.example.com/icon-512.png", manifest.Icons[1].Src);
    }

    [Fact]
    public void WebAppManifestParser_IsInstallable_Validates_PWA_Criteria()
    {
        var baseUri = new Uri("https://example.com");

        // Valid standalone PWA
        var valid = WebAppManifestParser.Parse(@"
{
  ""name"": ""Paca App"",
  ""start_url"": ""/"",
  ""display"": ""standalone"",
  ""icons"": [{ ""src"": ""/icon.png"", ""sizes"": ""192x192"" }]
}", baseUri);
        Assert.True(WebAppManifestParser.IsInstallable(valid));

        // Missing name
        var noName = WebAppManifestParser.Parse(@"
{
  ""start_url"": ""/"",
  ""display"": ""standalone"",
  ""icons"": [{ ""src"": ""/icon.png"" }]
}", baseUri);
        Assert.False(WebAppManifestParser.IsInstallable(noName));

        // Display browser (not standalone/minimal-ui/fullscreen)
        var browserDisplay = WebAppManifestParser.Parse(@"
{
  ""name"": ""Web Site"",
  ""start_url"": ""/"",
  ""display"": ""browser"",
  ""icons"": [{ ""src"": ""/icon.png"" }]
}", baseUri);
        Assert.False(WebAppManifestParser.IsInstallable(browserDisplay));

        // Empty icons
        var noIcons = WebAppManifestParser.Parse(@"
{
  ""name"": ""No Icons"",
  ""start_url"": ""/"",
  ""display"": ""standalone"",
  ""icons"": []
}", baseUri);
        Assert.False(WebAppManifestParser.IsInstallable(noIcons));
    }

    [Fact]
    public void OmniboxActionEvaluator_Matches_InstallApp()
    {
        var actionsKr = OmniboxActionEvaluator.GetMatchingActions("앱 설치");
        Assert.Contains(actionsKr, a => a.ActionId == "action:install-app");

        var actionsPwa = OmniboxActionEvaluator.GetMatchingActions("pwa");
        Assert.Contains(actionsPwa, a => a.ActionId == "action:install-app");

        var action = OmniboxActionEvaluator.AllActions.FirstOrDefault(a => a.ActionId == "action:install-app");
        Assert.NotNull(action);
        Assert.Contains("PWA", action.DisplayTitle);
    }

    [Fact]
    public void ChromeInternalUrlRouter_Routes_ChromeApps()
    {
        Assert.True(ChromeInternalUrlRouter.IsInternal("chrome://apps"));
        var action = ChromeInternalUrlRouter.Route("chrome://apps");
        Assert.Equal(ChromeInternalAction.Apps, action);

        var suggestions = ChromeInternalUrlRouter.GetSuggestions("chrome://app");
        Assert.Contains(suggestions, s => s.Url == "chrome://apps");
    }
}