using System.Collections.Generic;
using OpenNest.Geometry;
using OpenNest.IO;
using Xunit;

namespace OpenNest.Tests.IO
{
    public class TitleBlockDetectorTests
    {
        private static Line MakeLine(double x1, double y1, double x2, double y2) =>
            new Line(x1, y1, x2, y2);

        [Fact]
        public void DetectByLayerName_FlagsTitleLayer()
        {
            var line = MakeLine(0, 0, 10, 0);
            line.Layer = new Layer("TITLE");
            var entities = new List<Entity> { line };

            var result = TitleBlockDetector.Detect(entities, null);

            Assert.Contains(line.Id, result);
        }

        [Fact]
        public void DetectByLayerName_CaseInsensitive()
        {
            var line = MakeLine(0, 0, 10, 0);
            line.Layer = new Layer("border");
            var entities = new List<Entity> { line };

            var result = TitleBlockDetector.Detect(entities, null);

            Assert.Contains(line.Id, result);
        }

        [Fact]
        public void DetectByLayerName_IgnoresNonMatchingLayers()
        {
            var line = MakeLine(0, 0, 10, 0);
            line.Layer = new Layer("0");
            var entities = new List<Entity> { line };

            var result = TitleBlockDetector.Detect(entities, null);

            Assert.DoesNotContain(line.Id, result);
        }

        [Theory]
        [InlineData("TITLE")]
        [InlineData("TITLEBLOCK")]
        [InlineData("TITLE_BLOCK")]
        [InlineData("BORDER")]
        [InlineData("FRAME")]
        [InlineData("TB")]
        [InlineData("INFO")]
        [InlineData("SHEET")]
        [InlineData("ANNOTATION")]
        public void DetectByLayerName_AllKnownNames(string layerName)
        {
            var line = MakeLine(0, 0, 10, 0);
            line.Layer = new Layer(layerName);
            var entities = new List<Entity> { line };

            var result = TitleBlockDetector.Detect(entities, null);

            Assert.Contains(line.Id, result);
        }
    }
}