using Core.Printing;

namespace Tests.Printing;

[TestFixture]
public class NoteTemplateMerger_Tests
{
    [Test]
    public void Merge_ReplacesKnownTokens()
    {
        var tokens = PrintTokenMap.Create();
        tokens["FirstName"] = "Aria";
        tokens["LastName"] = "Cole";

        var result = NoteTemplateMerger.Merge("Hello {{FirstName}} {{LastName}}", tokens);

        Assert.That(result, Is.EqualTo("Hello Aria Cole"));
    }

    [Test]
    public void Merge_SupportsDottedAndSpacedNames()
    {
        var tokens = PrintTokenMap.Create();
        tokens["Chapter.Name"] = "North TSA";
        tokens["Interview Time"] = "3:20-3:35";

        var result = NoteTemplateMerger.Merge(
            "{{Chapter.Name}} at {{Interview Time}}",
            tokens);

        Assert.That(result, Is.EqualTo("North TSA at 3:20-3:35"));
    }

    [Test]
    public void Merge_IsCaseAndWhitespaceTolerant()
    {
        var tokens = PrintTokenMap.Create();
        tokens["FirstName"] = "Aria";

        var result = NoteTemplateMerger.Merge("{{  firstname  }}", tokens);

        Assert.That(result, Is.EqualTo("Aria"));
    }

    [Test]
    public void Merge_LeavesUnknownTokensInPlace()
    {
        var tokens = PrintTokenMap.Create();
        tokens["FirstName"] = "Aria";

        var result = NoteTemplateMerger.Merge("{{FirstName}} {{Missing}}", tokens);

        Assert.That(result, Is.EqualTo("Aria {{Missing}}"));
    }

    [Test]
    public void Merge_KnownEmptyBecomesBlank()
    {
        var tokens = PrintTokenMap.Create();
        tokens["Interview Time"] = string.Empty;

        var result = NoteTemplateMerger.Merge("Time: {{Interview Time}}.", tokens);

        Assert.That(result, Is.EqualTo("Time: ."));
    }

    [Test]
    public void Merge_EmptyTemplate_IsEmpty()
    {
        Assert.That(NoteTemplateMerger.Merge(null, PrintTokenMap.Create()), Is.EqualTo(string.Empty));
        Assert.That(NoteTemplateMerger.Merge("", PrintTokenMap.Create()), Is.EqualTo(string.Empty));
    }

    [Test]
    public void Merge_PageBreak_IsSentinel()
    {
        var result = NoteTemplateMerger.Merge(
            "Above\n{{PageBreak}}\nBelow",
            PrintTokenMap.Create());

        Assert.That(result, Does.Contain(NoteTemplateMerger.PageBreakSentinel));
        Assert.That(result, Does.Not.Contain("{{PageBreak}}"));
    }

    [Test]
    public void ApplyLayout_ReplacesSentinelAndParagraphWrap()
    {
        var raw = NoteTemplateMerger.ApplyLayout(
            $"x{NoteTemplateMerger.PageBreakSentinel}y");
        var wrapped = NoteTemplateMerger.ApplyLayout(
            $"<p>{NoteTemplateMerger.PageBreakSentinel}</p>");

        Assert.That(raw, Is.EqualTo($"x{NoteTemplateMerger.PageBreakHtml}y"));
        Assert.That(wrapped, Is.EqualTo(NoteTemplateMerger.PageBreakHtml));
    }

    [Test]
    public void Merge_AnswerSpace_IsSentinel()
    {
        var result = NoteTemplateMerger.Merge(
            "Q?\n{{AnswerSpace}}\nNext",
            PrintTokenMap.Create());

        Assert.That(result, Does.Contain(NoteTemplateMerger.AnswerSpaceSentinel));
        Assert.That(result, Does.Not.Contain("{{AnswerSpace}}"));
    }

    [Test]
    public void ApplyLayout_ReplacesAnswerSpaceSentinelAndParagraphWrap()
    {
        var raw = NoteTemplateMerger.ApplyLayout(
            $"x{NoteTemplateMerger.AnswerSpaceSentinel}y");
        var wrapped = NoteTemplateMerger.ApplyLayout(
            $"<p>{NoteTemplateMerger.AnswerSpaceSentinel}</p>");

        Assert.That(raw, Is.EqualTo($"x{NoteTemplateMerger.AnswerSpaceHtml}y"));
        Assert.That(wrapped, Is.EqualTo(NoteTemplateMerger.AnswerSpaceHtml));
    }
}