using DevDisciples.Json.Parser;
using DevDisciples.Parsing;
using Humanizer;

namespace DevDisciples.Json.Tools;

public static partial class Json2CSharpTranslator
{
    public static class JsonArrayTranslator
    {
        public static ITranslation Translate(ISyntaxNode visitee, object[] args)
        {
            var context = ContextFromArgs(args);
            var name = NameFromArgs(args);
            var array = (JsonArray)visitee;
            var type = "object";

            if (array.Elements.All(e => e is JsonObject))
            {
                context.Classes.Add(SquashObjects(name, array.Elements, args));
                type = context.Classes.Last().Name;
            }

            if (array.Elements.All(e => e is JsonString es && DateTime.TryParse(es.Value, out _)))
            {
                type = "DateTime";
            }
            else if (array.Elements.All(e => e is JsonString))
            {
                type = "string";
            }
            else if (array.Elements.All(e => e is JsonNumber))
            {
                type = array.Elements.Any(e => ((JsonNumber)e).Token.Lexeme.Contains('.')) ? "double" : "int";
            }

            return new PropertyTranslation
            {
                Type = $"List<{type}>",
                Name = name,
            };
        }

        private static ClassTranslation SquashObjects(string className, List<ISyntaxNode> objects, object[] args)
        {
            var classes = objects
                .Select(@object => JsonObjectTranslator.Translate(@object, args))
                .ToArray();

            var squashed = new ClassTranslation
            {
                Name = className.Singularize(),
                Properties = new()
            };

            foreach (var @class in classes)
            foreach (var prop in ((ClassTranslation)@class).Properties)
                if (squashed.Properties.All(p => p.Name != prop.Name))
                    squashed.Properties.Add(prop);

            return squashed;
        }
    }
}