using ScadaLink.CLI.Commands;
using ScadaLink.Commons.Messages.Management;

namespace ScadaLink.CLI.Tests;

public class CommandHelpersTests
{
    [Fact]
    public void HandleResponse_ManagementSuccess_JsonFormat_ReturnsZero()
    {
        var writer = new StringWriter();
        Console.SetOut(writer);

        var response = new ManagementSuccess("corr-1", "{\"id\":1,\"name\":\"test\"}");
        var exitCode = CommandHelpers.HandleResponse(response, "json");

        Assert.Equal(0, exitCode);
        Assert.Contains("{\"id\":1,\"name\":\"test\"}", writer.ToString());

        Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = true });
    }

    [Fact]
    public void HandleResponse_ManagementSuccess_TableFormat_ArrayData_ReturnsZero()
    {
        var writer = new StringWriter();
        Console.SetOut(writer);

        var json = "[{\"Id\":1,\"Name\":\"Alpha\"},{\"Id\":2,\"Name\":\"Beta\"}]";
        var response = new ManagementSuccess("corr-1", json);
        var exitCode = CommandHelpers.HandleResponse(response, "table");

        Assert.Equal(0, exitCode);
        var output = writer.ToString();
        Assert.Contains("Id", output);
        Assert.Contains("Name", output);
        Assert.Contains("Alpha", output);
        Assert.Contains("Beta", output);

        Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = true });
    }

    [Fact]
    public void HandleResponse_ManagementSuccess_TableFormat_ObjectData_ReturnsZero()
    {
        var writer = new StringWriter();
        Console.SetOut(writer);

        var json = "{\"Id\":1,\"Name\":\"Alpha\",\"Status\":\"Active\"}";
        var response = new ManagementSuccess("corr-1", json);
        var exitCode = CommandHelpers.HandleResponse(response, "table");

        Assert.Equal(0, exitCode);
        var output = writer.ToString();
        Assert.Contains("Property", output);
        Assert.Contains("Value", output);
        Assert.Contains("Id", output);
        Assert.Contains("Alpha", output);

        Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = true });
    }

    [Fact]
    public void HandleResponse_ManagementSuccess_TableFormat_EmptyArray_ShowsNoResults()
    {
        var writer = new StringWriter();
        Console.SetOut(writer);

        var response = new ManagementSuccess("corr-1", "[]");
        var exitCode = CommandHelpers.HandleResponse(response, "table");

        Assert.Equal(0, exitCode);
        Assert.Contains("(no results)", writer.ToString());

        Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = true });
    }

    [Fact]
    public void HandleResponse_ManagementError_ReturnsOne()
    {
        var errWriter = new StringWriter();
        Console.SetError(errWriter);

        var response = new ManagementError("corr-1", "Something failed", "FAIL_CODE");
        var exitCode = CommandHelpers.HandleResponse(response, "json");

        Assert.Equal(1, exitCode);
        Assert.Contains("Something failed", errWriter.ToString());

        Console.SetError(new StreamWriter(Console.OpenStandardError()) { AutoFlush = true });
    }

    [Fact]
    public void HandleResponse_ManagementUnauthorized_ReturnsTwo()
    {
        var errWriter = new StringWriter();
        Console.SetError(errWriter);

        var response = new ManagementUnauthorized("corr-1", "Access denied");
        var exitCode = CommandHelpers.HandleResponse(response, "json");

        Assert.Equal(2, exitCode);
        Assert.Contains("Access denied", errWriter.ToString());

        Console.SetError(new StreamWriter(Console.OpenStandardError()) { AutoFlush = true });
    }

    [Fact]
    public void HandleResponse_UnexpectedType_ReturnsOne()
    {
        var errWriter = new StringWriter();
        Console.SetError(errWriter);

        var exitCode = CommandHelpers.HandleResponse("unexpected", "json");

        Assert.Equal(1, exitCode);
        Assert.Contains("Unexpected response type", errWriter.ToString());

        Console.SetError(new StreamWriter(Console.OpenStandardError()) { AutoFlush = true });
    }

    [Fact]
    public void NewCorrelationId_ReturnsNonEmpty32CharHex()
    {
        var id = CommandHelpers.NewCorrelationId();

        Assert.NotNull(id);
        Assert.Equal(32, id.Length);
        Assert.True(id.All(c => "0123456789abcdef".Contains(c)));
    }
}