using System;
using FluentAssertions;
using NexusReader.UI.Shared.Services;
using Xunit;

namespace NexusReader.Application.Tests.Services;

public class PaywallParserTests
{
    [Fact]
    public void TryParsePaywallTrigger_WithValidSimpleToken_ReturnsTrueAndCorrectValues()
    {
        // Arrange
        var guid = Guid.NewGuid();
        var rawText = $"Teaser sentence. [PAYWALL_TRIGGER:{guid}:Clean Book Title:45:82]";

        // Act
        var result = PaywallParser.TryParsePaywallTrigger(
            rawText,
            out var teaser,
            out var bookId,
            out var title,
            out var localScore,
            out var globalScore);

        // Assert
        result.Should().BeTrue();
        teaser.Should().Be("Teaser sentence.");
        bookId.Should().Be(guid);
        title.Should().Be("Clean Book Title");
        localScore.Should().Be(45);
        globalScore.Should().Be(82);
    }

    [Fact]
    public void TryParsePaywallTrigger_WithColonsInBookTitle_ReturnsTrueAndCorrectValues()
    {
        // Arrange
        var guid = Guid.NewGuid();
        var rawText = $"Teaser text. [PAYWALL_TRIGGER:{guid}:Architektura: .NET 10 i C# 14:15:99]";

        // Act
        var result = PaywallParser.TryParsePaywallTrigger(
            rawText,
            out var teaser,
            out var bookId,
            out var title,
            out var localScore,
            out var globalScore);

        // Assert
        result.Should().BeTrue();
        teaser.Should().Be("Teaser text.");
        bookId.Should().Be(guid);
        title.Should().Be("Architektura: .NET 10 i C# 14");
        localScore.Should().Be(15);
        globalScore.Should().Be(99);
    }

    [Theory]
    [InlineData("")]
    [InlineData("Just plain text with no trigger token.")]
    [InlineData("Plain text [PAYWALL_TRIGGER:invalid-guid:Title:50:80]")]
    [InlineData("Plain text [PAYWALL_TRIGGER:00000000-0000-0000-0000-000000000000:Title:50:invalid]")]
    [InlineData("Plain text [PAYWALL_TRIGGER:00000000-0000-0000-0000-000000000000:Title:invalid:80]")]
    [InlineData("Plain text [PAYWALL_TRIGGER:00000000-0000-0000-0000-000000000000:Title]")]
    public void TryParsePaywallTrigger_WithInvalidInputs_ReturnsFalse(string rawText)
    {
        // Act
        var result = PaywallParser.TryParsePaywallTrigger(
            rawText,
            out var teaser,
            out var bookId,
            out var title,
            out var localScore,
            out var globalScore);

        // Assert
        result.Should().BeFalse();
    }
}
