namespace Nonemm.Session.Tests;

public class QtcMessagesTests
{
    [Fact]
    public void ALineIsTheTimeTheCallAndTheSerialNumber()
    {
        Assert.Equal(
            "1234 DL1ABC 123",
            QtcMessages.Line("1234", "DL1ABC", "123", QtcMessages.DefaultFieldSpacing));
    }

    /// N1MM writes the spacing with `S` for a space, so an operator who wants
    /// two writes `SS`.
    [Fact]
    public void TheSpacingIsWrittenWithSForASpace()
    {
        Assert.Equal("1234  DL1ABC  123", QtcMessages.Line("1234", "DL1ABC", "123", "SS"));
    }

    [Fact]
    public void AnythingElseInTheSpacingGoesOutAsItIs()
    {
        Assert.Equal("1234/DL1ABC/123", QtcMessages.Line("1234", "DL1ABC", "123", "/"));
    }

    /// N1MM lets the TU message name the series it is closing.
    [Fact]
    public void TheTuMessageCanCarryTheHeader()
    {
        Assert.Equal("TU QTC 3/10 73", QtcMessages.Tu("TU {QTC} 73", "QTC 3/10"));
    }

    [Fact]
    public void ATuMessageWithoutTheHeaderIsLeftAlone()
    {
        Assert.Equal("TU 73", QtcMessages.Tu("TU 73", "QTC 3/10"));
    }

    /// N1MM joins the three fields with hyphens on RTTY and offers no setting
    /// for it.
    [Fact]
    public void ARttyLineIsTheThreeFieldsJoinedWithHyphens()
    {
        Assert.Equal("1234-DL1ABC-123", QtcMessages.RttyLine(" 1234 ", " DL1ABC ", " 123 "));
    }

    /// The shape is N1MM's, from `QTCWindow.cs:3609`: the heading, the spacing,
    /// then every line with a space and the spacing behind it, then the ending.
    /// The macros are left for the expander; `{QTC}` is the one filled in here.
    [Fact]
    public void SendAllReadsTheWholeSeriesOutInOneMessage()
    {
        string message = QtcMessages.SendAll(
            QtcMessages.DefaultSendAllHeading,
            QtcMessages.DefaultSendAllEnding,
            QtcMessages.DefaultRttySpacing,
            "QTC 3/10",
            ["1234-DL1ABC-123", "1240-G3XYZ-124"]);

        Assert.Equal(
            "{TX}{ENTERLF}QTC 3/10 QTC 3/10{ENTER}"
            + "1234-DL1ABC-123 {ENTER}"
            + "1240-G3XYZ-124 {ENTER}"
            + "{ENTERLF}QSL?? BK DE {MYCALL} K{RX}",
            message);
    }

    [Fact]
    public void SendAllWithNoLinesSendsNothing()
    {
        Assert.Equal(
            "",
            QtcMessages.SendAll(
                QtcMessages.DefaultSendAllHeading,
                QtcMessages.DefaultSendAllEnding,
                QtcMessages.DefaultRttySpacing,
                "QTC 3/10",
                []));
    }

    /// One line asked for again, which N1MM wraps in the spacing on both sides.
    [Fact]
    public void OneLineKeysAndDropsTheTransmitterOfItsOwn()
    {
        Assert.Equal(
            "{TX}{ENTER}1234-DL1ABC-123{ENTER}{RX}",
            QtcMessages.SendOne(QtcMessages.DefaultRttySpacing, "1234-DL1ABC-123"));
    }

    [Fact]
    public void WhatIsInTheBoxesIsTrimmed()
    {
        Assert.Equal(
            "1234 DL1ABC 123",
            QtcMessages.Line(" 1234 ", " DL1ABC ", " 123 ", QtcMessages.DefaultFieldSpacing));
    }
}