using System.Text;
using Shouldly;
using Spectre.Console.Rendering;
using Xunit;

namespace Spectre.Console.Tests.Unit
{
    public sealed class TextTests
    {
        [Fact]
        public void Should_Consider_The_Longest_Word_As_Minimum_Width()
        {
            var text = new Text("Foo Bar Baz\nQux\nLol mobile");

            var result = ((IRenderable)text).Measure(new RenderContext(Encoding.Unicode, false), 80);

            result.Min.ShouldBe(6);
        }

        [Fact]
        public void Should_Consider_The_Longest_Line_As_Maximum_Width()
        {
            var text = new Text("Foo Bar Baz\nQux\nLol mobile");

            var result = ((IRenderable)text).Measure(new RenderContext(Encoding.Unicode, false), 80);

            result.Max.ShouldBe(11);
        }

        [Fact]
        public void Should_Render_Unstyled_Text_As_Expected()
        {
            // Given
            var fixture = new PlainConsole(width: 80);
            var text = new Text("Hello World");

            // When
            fixture.Render(text);

            // Then
            fixture.Output
                .NormalizeLineEndings()
                .ShouldBe("Hello World");
        }

        [Theory]
        [InlineData("Hello\n\nWorld\n\n")]
        [InlineData("Hello\r\n\r\nWorld\r\n\r\n")]
        public void Should_Write_Line_Breaks(string input)
        {
            // Given
            var fixture = new PlainConsole(width: 5);
            var text = new Text(input);

            // When
            fixture.Render(text);

            // Then
            fixture.RawOutput.ShouldBe("Hello\n\nWorld\n\n");
        }

        [Theory]
        [InlineData(5, "Hello World", "Hello\nWorld")]
        [InlineData(10, "Hello Sweet Nice World", "Hello \nSweet Nice\nWorld")]
        public void Should_Split_Unstyled_Text_To_New_Lines_If_Width_Exceeds_Console_Width(
            int width, string input, string expected)
        {
            // Given
            var fixture = new PlainConsole(width);
            var text = new Text(input);

            // When
            fixture.Render(text);

            // Then
            fixture.Output
                .NormalizeLineEndings()
                .ShouldBe(expected);
        }
    }
}