using ChatBot.Models.Configuration;
using FluentAssertions;

namespace ChatBot.Tests.Models;

public class OllamaSettingsTests
{
    [Fact]
    public void Constructor_ShouldInitializePropertiesWithDefaultValues()
    {
        // Arrange & Act
        var settings = new OllamaSettings();

        // Assert
        settings.Url.Should().Be("http://localhost:11434");
        settings.DefaultModel.Should().Be("llama3");
    }

    [Fact]
    public void Url_ShouldBeSettable()
    {
        // Arrange
        var settings = new OllamaSettings();
        var expectedUrl = "http://ollama.example.com:11434";

        // Act
        settings.Url = expectedUrl;

        // Assert
        settings.Url.Should().Be(expectedUrl);
    }

    [Fact]
    public void DefaultModel_ShouldBeSettable()
    {
        // Arrange
        var settings = new OllamaSettings();
        var expectedModel = "llama3.1:8b";

        // Act
        settings.DefaultModel = expectedModel;

        // Assert
        settings.DefaultModel.Should().Be(expectedModel);
    }

    [Theory]
    [InlineData("")]
    [InlineData("http://localhost:11434")]
    [InlineData("https://ollama.example.com:11434")]
    [InlineData("http://192.168.1.100:11434")]
    [InlineData("https://api.ollama.com")]
    [InlineData("http://localhost")]
    [InlineData("https://ollama.example.com")]
    public void Url_ShouldAcceptVariousFormats(string url)
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = url;

        // Assert
        settings.Url.Should().Be(url);
    }

    [Theory]
    [InlineData("")]
    [InlineData("llama3")]
    [InlineData("llama3.1")]
    [InlineData("llama3.1:8b")]
    [InlineData("llama3.1:70b")]
    [InlineData("gemma2")]
    [InlineData("gemma2:2b")]
    [InlineData("gemma2:9b")]
    [InlineData("mistral")]
    [InlineData("mistral:7b")]
    [InlineData("codellama")]
    [InlineData("codellama:7b")]
    [InlineData("phi3")]
    [InlineData("phi3:3.8b")]
    [InlineData("qwen2")]
    [InlineData("qwen2:7b")]
    public void DefaultModel_ShouldAcceptVariousModels(string model)
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = model;

        // Assert
        settings.DefaultModel.Should().Be(model);
    }

    [Fact]
    public void AllProperties_ShouldBeMutable()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "https://custom-ollama.example.com:8080";
        settings.DefaultModel = "custom-model:latest";

        // Assert
        settings.Url.Should().Be("https://custom-ollama.example.com:8080");
        settings.DefaultModel.Should().Be("custom-model:latest");
    }

    [Fact]
    public void Settings_ShouldSupportEmptyUrl()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "";

        // Assert
        settings.Url.Should().Be("");
    }

    [Fact]
    public void Settings_ShouldSupportEmptyModel()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "";

        // Assert
        settings.DefaultModel.Should().Be("");
    }

    [Fact]
    public void Settings_ShouldSupportNullUrl()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = null!;

        // Assert
        settings.Url.Should().BeNull();
    }

    [Fact]
    public void Settings_ShouldSupportNullModel()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = null!;

        // Assert
        settings.DefaultModel.Should().BeNull();
    }

    [Fact]
    public void Settings_ShouldSupportLocalhostUrl()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "http://localhost:11434";

        // Assert
        settings.Url.Should().Be("http://localhost:11434");
    }

    [Fact]
    public void Settings_ShouldSupportHttpsUrl()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "https://ollama.example.com:11434";

        // Assert
        settings.Url.Should().Be("https://ollama.example.com:11434");
    }

    [Fact]
    public void Settings_ShouldSupportCustomPort()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "http://localhost:8080";

        // Assert
        settings.Url.Should().Be("http://localhost:8080");
    }

    [Fact]
    public void Settings_ShouldSupportIpAddress()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "http://192.168.1.100:11434";

        // Assert
        settings.Url.Should().Be("http://192.168.1.100:11434");
    }

    [Fact]
    public void Settings_ShouldSupportDomainName()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "https://api.ollama.com";

        // Assert
        settings.Url.Should().Be("https://api.ollama.com");
    }

    [Fact]
    public void Settings_ShouldSupportLlama3Model()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "llama3";

        // Assert
        settings.DefaultModel.Should().Be("llama3");
    }

    [Fact]
    public void Settings_ShouldSupportLlama31Model()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "llama3.1:8b";

        // Assert
        settings.DefaultModel.Should().Be("llama3.1:8b");
    }

    [Fact]
    public void Settings_ShouldSupportGemmaModel()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "gemma2:9b";

        // Assert
        settings.DefaultModel.Should().Be("gemma2:9b");
    }

    [Fact]
    public void Settings_ShouldSupportMistralModel()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "mistral:7b";

        // Assert
        settings.DefaultModel.Should().Be("mistral:7b");
    }

    [Fact]
    public void Settings_ShouldSupportCodeLlamaModel()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "codellama:7b";

        // Assert
        settings.DefaultModel.Should().Be("codellama:7b");
    }

    [Fact]
    public void Settings_ShouldSupportPhi3Model()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "phi3:3.8b";

        // Assert
        settings.DefaultModel.Should().Be("phi3:3.8b");
    }

    [Fact]
    public void Settings_ShouldSupportQwen2Model()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "qwen2:7b";

        // Assert
        settings.DefaultModel.Should().Be("qwen2:7b");
    }

    [Fact]
    public void Settings_ShouldSupportVeryLongUrl()
    {
        // Arrange
        var settings = new OllamaSettings();
        var longUrl =
            "https://very-long-domain-name-that-might-be-used-in-some-cases.example.com:11434";

        // Act
        settings.Url = longUrl;

        // Assert
        settings.Url.Should().Be(longUrl);
    }

    [Fact]
    public void Settings_ShouldSupportVeryLongModelName()
    {
        // Arrange
        var settings = new OllamaSettings();
        var longModelName = "very-long-model-name-that-might-be-used-in-some-cases:latest";

        // Act
        settings.DefaultModel = longModelName;

        // Assert
        settings.DefaultModel.Should().Be(longModelName);
    }

    [Fact]
    public void Settings_ShouldSupportUrlWithPath()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "https://ollama.example.com/api/v1";

        // Assert
        settings.Url.Should().Be("https://ollama.example.com/api/v1");
    }

    [Fact]
    public void Settings_ShouldSupportUrlWithQueryParameters()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "https://ollama.example.com:11434?timeout=30&retries=3";

        // Assert
        settings.Url.Should().Be("https://ollama.example.com:11434?timeout=30&retries=3");
    }

    [Fact]
    public void Settings_ShouldSupportUrlWithFragment()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "https://ollama.example.com:11434#api";

        // Assert
        settings.Url.Should().Be("https://ollama.example.com:11434#api");
    }

    [Fact]
    public void Settings_ShouldSupportModelWithVersion()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "llama3.1:8b-instruct-q4_0";

        // Assert
        settings.DefaultModel.Should().Be("llama3.1:8b-instruct-q4_0");
    }

    [Fact]
    public void Settings_ShouldSupportModelWithCustomTag()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "custom-model:my-tag";

        // Assert
        settings.DefaultModel.Should().Be("custom-model:my-tag");
    }

    [Fact]
    public void Settings_ShouldSupportModelWithSpecialCharacters()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "model-name_with.special+chars:version-tag";

        // Assert
        settings.DefaultModel.Should().Be("model-name_with.special+chars:version-tag");
    }

    [Fact]
    public void Settings_ShouldSupportUrlWithSpecialCharacters()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "https://user:pass@ollama.example.com:11434";

        // Assert
        settings.Url.Should().Be("https://user:pass@ollama.example.com:11434");
    }

    [Fact]
    public void Settings_ShouldSupportModelWithUnicode()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "модель:версия";

        // Assert
        settings.DefaultModel.Should().Be("модель:версия");
    }

    [Fact]
    public void Settings_ShouldSupportUrlWithUnicode()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "https://оллама.пример.ком:11434";

        // Assert
        settings.Url.Should().Be("https://оллама.пример.ком:11434");
    }

    [Fact]
    public void Settings_ShouldSupportModelWithNumbers()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "model123:version456";

        // Assert
        settings.DefaultModel.Should().Be("model123:version456");
    }

    [Fact]
    public void Settings_ShouldSupportUrlWithNumbers()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "http://192.168.1.100:11434";

        // Assert
        settings.Url.Should().Be("http://192.168.1.100:11434");
    }

    [Fact]
    public void Settings_ShouldSupportModelWithUnderscores()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "my_model_name:my_version_tag";

        // Assert
        settings.DefaultModel.Should().Be("my_model_name:my_version_tag");
    }

    [Fact]
    public void Settings_ShouldSupportUrlWithUnderscores()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "http://my_ollama_server.example.com:11434";

        // Assert
        settings.Url.Should().Be("http://my_ollama_server.example.com:11434");
    }

    [Fact]
    public void Settings_ShouldSupportModelWithHyphens()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "my-model-name:my-version-tag";

        // Assert
        settings.DefaultModel.Should().Be("my-model-name:my-version-tag");
    }

    [Fact]
    public void Settings_ShouldSupportUrlWithHyphens()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "http://my-ollama-server.example.com:11434";

        // Assert
        settings.Url.Should().Be("http://my-ollama-server.example.com:11434");
    }

    [Fact]
    public void Settings_ShouldSupportModelWithDots()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.DefaultModel = "my.model.name:my.version.tag";

        // Assert
        settings.DefaultModel.Should().Be("my.model.name:my.version.tag");
    }

    [Fact]
    public void Settings_ShouldSupportUrlWithDots()
    {
        // Arrange
        var settings = new OllamaSettings();

        // Act
        settings.Url = "http://my.ollama.server.example.com:11434";

        // Assert
        settings.Url.Should().Be("http://my.ollama.server.example.com:11434");
    }
}