using NUnit.Framework;

using MultiversalDiplomacy.Model;

namespace MultiversalDiplomacyTests;

public class RegexTest
{
    [TestCase(
        "Army a-Munich/l@0 holds",
        ExpectedResult = new string[] {"Army", "a", "Munich", "l", "0", "holds"},
        Description = "Full specification")]
    [TestCase(
        "fleet B-lon/C@0 H",
        ExpectedResult = new string[] {"fleet", "B", "lon", "C", "0", "H"},
        Description = "Case insensitivity")]
    [TestCase(
        "ROM h",
        ExpectedResult = new string[] {"", "", "ROM", "", "", "h"},
        Description = "All optionals missing")]
    [TestCase(
        "A F-STP hold",
        ExpectedResult = new string[] {"A", "F", "STP", "", "", "hold"},
        Description = "No confusion of unit type and timeline")]
    [TestCase(
        "Fleet North Sea Hold",
        ExpectedResult = new string[] {"Fleet", "", "North Sea", "", "", "Hold"},
        Description = "Province with space in name")]
    [TestCase(
        "F Spain(nc) holds",
        ExpectedResult = new string[] {"F", "", "Spain", "nc", "", "holds"},
        Description = "Parenthesis location")]
    public string[] HoldRegexMatches(string order)
    {
        OrderRegex re = new(World.WithStandardMap());
        var match = re.Hold.Match(order);
        Assert.True(match.Success, "Match failed");
        var (type, timeline, province, location, turn, holdVerb) = OrderRegex.ParseHold(match);
        return [type, timeline, province, location, turn, holdVerb];
    }

    [Test]
    public void UnitTokenizer()
    {
        World world = World.WithStandardMap();
        OrderRegex re = new(world);

        var match = re.Hold.Match("Germany Army a-Munich/l@0 holds");
        Assert.That(match.Success, Is.True);
        var hold = OrderRegex.ParseHold(match);
        // Assert.That(hold.power, Is.EqualTo("Germany"));
        Assert.That(hold.type, Is.EqualTo("Army"));
        Assert.That(hold.timeline, Is.EqualTo("a"));
        Assert.That(hold.province, Is.EqualTo("Munich"));
        Assert.That(hold.location, Is.EqualTo("l"));
        Assert.That(hold.turn, Is.EqualTo("0"));
        Assert.That(hold.holdVerb, Is.EqualTo("holds"));

        match = re.Hold.Match("F Venice hold");
        Assert.That(match.Success, Is.True);
        hold = OrderRegex.ParseHold(match);
        // Assert.That(hold.power, Is.Null);
        Assert.That(hold.type, Is.EqualTo("F"));
        Assert.That(hold.timeline, Is.Null);
        Assert.That(hold.province, Is.EqualTo("Venice"));
        Assert.That(hold.location, Is.Null);
        Assert.That(hold.turn, Is.Null);
        Assert.That(hold.holdVerb, Is.EqualTo("hold"));

        match = re.Move.Match("F Gascony - Spain(nc)");
        Assert.That(match.Success, Is.True);
        var move = OrderRegex.ParseMove(match);
        Assert.That(move.power, Is.Null);
        Assert.That(move.type, Is.EqualTo("F"));
        Assert.That(move.timeline, Is.Null);
        Assert.That(move.province, Is.EqualTo("Gascony"));
        Assert.That(move.location, Is.Null);
        Assert.That(move.turn, Is.Null);
        Assert.That(move.moveVerb, Is.EqualTo("-"));
        Assert.That(move.destTimeline, Is.Null);
        Assert.That(move.destProvince, Is.EqualTo("Spain"));
        Assert.That(move.destLocation, Is.EqualTo("nc"));
        Assert.That(move.destTurn, Is.Null);

        match = re.Move.Match("F North Sea - Picardy");
        Assert.That(match.Success, Is.True);
        move = OrderRegex.ParseMove(match);
        Assert.That(move.power, Is.Null);
        Assert.That(move.type, Is.EqualTo("F"));
        Assert.That(move.timeline, Is.Null);
        Assert.That(move.province, Is.EqualTo("North Sea"));
        Assert.That(move.location, Is.Null);
        Assert.That(move.turn, Is.Null);
        Assert.That(move.moveVerb, Is.EqualTo("-"));
        Assert.That(move.destTimeline, Is.Null);
        Assert.That(move.destProvince, Is.EqualTo("Picardy"));
        Assert.That(move.destLocation, Is.Null);
        Assert.That(move.destTurn, Is.Null);
    }
}