using System.CommandLine;
using DevDisciples.Json.Tools.CLI.Extensions;

namespace DevDisciples.Json.Tools.CLI;

public partial class Json2CSharpCommand : Command
{
    private static readonly Option<string> RootClassNameOption =
        new(
            aliases: ["--root-class", "--root", "-r"],
            description: "The name of the root class",
            getDefaultValue: () => Json2CSharpTranslator.Context.DefaultRootClassName
        );

    private static readonly Option<string> NamespaceOption = new(
        aliases: ["--namespace", "--ns", "-n",],
        description: "The namespace to use",
        getDefaultValue: () => Json2CSharpTranslator.Context.DefaultNamespace
    );

    public Json2CSharpCommand() : base("2csharp", "Transform a JSON object into a C# class")
    {
        AddAlias("2cs");
        AddAlias("2c#");

        this.AddIOCommandOptions();
        AddOption(RootClassNameOption);
        AddOption(NamespaceOption);

        this.SetHandler(ExecuteAsync, new CommandOptionsBinder());
    }

    private static async Task ExecuteAsync(CommandOptions options)
    {
        var json = await IOHandler.HandleInput(options.Input, options.InputArgument, options.InputFile);

        var output = Json2CSharpTranslator.Translate(json, new()
        {
            RootClassName = options.RootClassName ?? Json2CSharpTranslator.Context.DefaultRootClassName,
            Namespace = options.Namespace ?? Json2CSharpTranslator.Context.DefaultNamespace
        });

        await IOHandler.HandleOutput(options.Output, options.OutputFile, output);
    }
}