using DodoSSH.Client.App.Platform;

namespace DodoSSH.Client.App.Tests;

/// <summary>
/// <c>LocalEditor</c>: a remote file opened for editing is never run.
/// </summary>
/// <remarks>
/// The file's name was chosen by whoever can write to the host, so the question for every name here is
/// whether the desktop's default action would execute it. Only the Windows rule is exercised directly — it
/// is a pure function of the name and <c>PATHEXT</c> — while what each platform starts is checked on the
/// platform the suite is running on.
/// </remarks>
public sealed class LocalEditorTests
{
    [Theory]
    [InlineData("deploy.bat")]
    [InlineData("DEPLOY.CMD")]
    [InlineData("notes.hta")]
    [InlineData("setup.js")]
    [InlineData("link.lnk")]
    [InlineData("run.ps1")]
    [InlineData("settings.reg")]
    [InlineData("deploy.bat.")]
    [InlineData("deploy.bat ")]
    public void AFileWindowsWouldRun_IsRecognised(string name) =>
        LocalEditor.WouldRunOnWindows(name, pathExt: string.Empty).ShouldBeTrue();

    [Theory]
    [InlineData("nginx.conf")]
    [InlineData("authorized_keys")]
    [InlineData(".bashrc")]
    [InlineData("app.json")]
    [InlineData("bat")]
    public void AnOrdinaryConfigFile_IsLeftToItsAssociation(string name) =>
        LocalEditor.WouldRunOnWindows(name, pathExt: string.Empty).ShouldBeFalse();

    [Fact]
    public void WhateverPathExtAdds_IsTreatedAsRunnableToo() =>
        LocalEditor.WouldRunOnWindows("tool.foo", pathExt: ".COM;.EXE;.FOO").ShouldBeTrue();

    [Fact]
    public void ARunnableFile_IsNeverHandedToTheDefaultOpenAction()
    {
        var path = Path.Combine(Path.GetTempPath(), "deploy.bat");

        if (OperatingSystem.IsLinux())
        {
            // No portable editor to name, and a .bat is not something a Linux desktop runs.
            LocalEditor.StartInfoFor(path).UseShellExecute.ShouldBeTrue();
            Should.Throw<InvalidOperationException>(() => LocalEditor.StartInfoFor("/tmp/app.desktop"));
            return;
        }

        var start = LocalEditor.StartInfoFor(OperatingSystem.IsMacOS() ? "/tmp/run.command" : path);

        // Either the type's own "edit" verb, or a named editor with the file as an argument — never the
        // file itself under its default verb.
        (start.Verb == "edit" || !start.UseShellExecute).ShouldBeTrue();
    }

    [Fact]
    public void AnOrdinaryFile_StillOpensWithItsAssociation()
    {
        var start = LocalEditor.StartInfoFor(Path.Combine(Path.GetTempPath(), "nginx.conf"));

        start.UseShellExecute.ShouldBeTrue();
        start.Verb.ShouldBeEmpty();
    }
}