namespace MBN_STOCK_WEBVIEW.LegacyWeb.Tests;

public sealed class LegacyOverseasParityWebTests
{
    private static readonly string RepositoryRoot = FindRepositoryRoot();
    private static readonly string WebRoot = Path.Combine(
        RepositoryRoot,
        "src",
        "MBN_STOCK_WEBVIEW.LegacyParityApp",
        "Web");
    private static readonly string App = File.ReadAllText(Path.Combine(WebRoot, "app.js"));
    private static readonly string Markup = File.ReadAllText(Path.Combine(WebRoot, "index.html"));
    private static readonly string Styles = File.ReadAllText(Path.Combine(WebRoot, "styles.css"));

    [Fact]
    public void OverseasTabRendersFixedIndustryStockAndActionWorkspaces()
    {
        Assert.Contains("data-tab-id=\"overseasStocks\">해외종목</button>", Markup);
        Assert.Contains("function renderOverseas(state)", App, StringComparison.Ordinal);
        Assert.Contains("overseas-fixed-list", App, StringComparison.Ordinal);
        Assert.Contains("미국 해외업종", App, StringComparison.Ordinal);
        Assert.Contains("미국·대만 해외종목", App, StringComparison.Ordinal);
        Assert.Contains("overseas-action-panel", App, StringComparison.Ordinal);
        Assert.Contains("renderOverseas(state);", App, StringComparison.Ordinal);

        foreach (var selector in new[]
                 {
                     ".overseas-workspace",
                     ".overseas-fixed-list",
                     ".overseas-searches",
                     ".overseas-results",
                     ".overseas-action-panel"
                 })
        {
            Assert.Contains(selector, Styles, StringComparison.Ordinal);
        }
    }

    [Fact]
    public void OverseasEventsSendOnlyQueriesAndOpaqueIds()
    {
        foreach (var intent in new[]
                 {
                     "select-overseas-fixed-index",
                     "search-overseas-industries",
                     "search-overseas-stocks",
                     "select-overseas-industry",
                     "select-overseas-stock",
                     "activate-overseas-action"
                 })
        {
            Assert.Contains($"\"{intent}\"", App, StringComparison.Ordinal);
        }

        Assert.Contains("data-overseas-action-id", App, StringComparison.Ordinal);
        Assert.Contains("event.key === \"Enter\"", App, StringComparison.Ordinal);
        var clickStart = App.IndexOf(
            "categoryTree.addEventListener(\"click\"",
            StringComparison.Ordinal);
        var changeStart = App.IndexOf(
            "categoryTree.addEventListener(\"change\"",
            clickStart,
            StringComparison.Ordinal);
        Assert.True(clickStart >= 0 && changeStart > clickStart);
        Assert.Contains(
            "button[data-overseas-action-id]",
            App[clickStart..changeStart],
            StringComparison.Ordinal);
        Assert.DoesNotContain("NAS@IXIC", App, StringComparison.Ordinal);
        Assert.DoesNotContain("FOREIGN_INDEX", App, StringComparison.Ordinal);
        Assert.DoesNotContain("index-candle-20d", App, StringComparison.Ordinal);
    }

    private static string FindRepositoryRoot()
    {
        var current = new DirectoryInfo(AppContext.BaseDirectory);
        while (current is not null)
        {
            if (Directory.Exists(Path.Combine(current.FullName, "src")) &&
                Directory.Exists(Path.Combine(current.FullName, "tests")))
            {
                return current.FullName;
            }

            current = current.Parent;
        }

        throw new DirectoryNotFoundException("Repository root was not found.");
    }
}