using Nonemm.Session;

namespace Nonemm.Session.Tests;

/// What the voice keyer window lists: the recordings the phone function keys
/// name, for one operator.
public class VoiceLinesTests
{
    private static MessageFile Phone(string text) => MessageFile.Parse(text);

    [Fact]
    public void AKeyIsListedUnderTheFileItNames()
    {
        IReadOnlyList<VoiceLine> lines = VoiceLines.For(
            Phone(@"F1 CQ,{WAVDIR}\Cq.wav"),
            "om3kff");

        VoiceLine cq = lines[0];
        Assert.Equal("F1 run, F1 S&P", cq.Where);
        Assert.Equal("CQ", cq.Says);
        Assert.Equal(@"OM3KFF\Cq.wav", cq.Name);
    }

    /// Two keys naming one file are one line: there is one recording to make.
    [Fact]
    public void TheSameFileOnTwoKeysIsOneLine()
    {
        IReadOnlyList<VoiceLine> lines = VoiceLines.For(
            Phone($"F1 CQ,Cq.wav\n{Blank(11)}F1 S&P CQ,Cq.wav"),
            "");

        VoiceLine cq = Assert.Single(lines, line => line.Name == "Cq.wav");
        Assert.Equal("F1 run, F1 S&P", cq.Where);
    }

    /// With nobody at the microphone the recordings are the ones in the `Wav`
    /// folder itself, not a path starting at the root.
    [Fact]
    public void WithNoOperatorTheFolderGoesAway()
    {
        IReadOnlyList<VoiceLine> lines = VoiceLines.For(Phone(@"F1 CQ,{WAVDIR}\Cq.wav"), "");

        Assert.Equal("Cq.wav", lines[0].Name);
    }

    [Fact]
    public void AKeyThatIsWordsRatherThanARecordingIsNotListed()
    {
        IReadOnlyList<VoiceLine> lines = VoiceLines.For(Phone("F1 CQ,CQ CONTEST OM5M"), "OM5M");

        Assert.DoesNotContain(lines, line => line.Where.StartsWith("F1"));
    }

    /// WAE's four are always there: the QTC window plays them, and they are in
    /// the `Wav` folder rather than an operator's, which is where N1MM keeps
    /// them.
    [Fact]
    public void TheQtcRecordingsAreListedWhateverTheMessagesSay()
    {
        IReadOnlyList<VoiceLine> lines = VoiceLines.For(Phone("F1 CQ,"), "OM3KFF");

        Assert.Equal(
            [VoiceLines.QtcReady, VoiceLines.QtcAgain, VoiceLines.QtcConfirm, VoiceLines.QtcThanks],
            lines.Select(line => line.Name));
        Assert.All(lines, line => Assert.Equal("QTC window", line.Where));
    }

    private static string Blank(int lines) => string.Concat(Enumerable.Repeat("\n", lines));
}