using System;
using System.Collections;

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;

using Newtonsoft.Json;

namespace jsonapi.Controllers
{
	[ApiController]
	[Route("room")]
	[Produces("application/json")]

	public class RoomController : ControllerBase
	{
		private IConfiguration configuration;
		private Library.SHA256HashGenerator sha256HashGenerator;
		private Library.JsonFileReader jsonFileReader;

		public RoomController(IConfiguration config)
		{
			configuration = config;
			sha256HashGenerator = Library.SHA256HashGenerator.GetInstance();
			jsonFileReader = Library.JsonFileReader.GetInstance();
		}

		[HttpGet]
		public IActionResult Get()
		{
			try
			{
				var json = jsonFileReader.Read("Static/room.json");
				return Ok(json);
			}
			catch (Exception)
			{
				dynamic errorObject = new
				{
					errorCode = StatusCodes.Status500InternalServerError,
					errorMessage = "500 Error: Something went wrong. Please contact the administrator for assistance."
				};
				return StatusCode(errorObject.errorCode, errorObject);
			}
		}

	[HttpGet("{x},{y},{z}")]
		public IActionResult Get(int x, int y, int z)
		{
			string worldPath = configuration.GetSection("jsonapi").GetValue<string>("world");
			string filePath = worldPath + "/rooms/" + z + "/" + x + "," + y + ".json";
			if(!System.IO.File.Exists(filePath)) {
				var generator = Library.RoomGenerator.GetInstance();
				var body = generator.Generate(x, y, z);
				System.IO.File.WriteAllText(filePath, JsonConvert.SerializeObject(body, Formatting.Indented));
				return Ok(body);
			}

			try
			{
				var json = jsonFileReader.Read(filePath);
				return Ok(json);
			}
			catch (Exception)
			{
				dynamic errorObject = new
				{
					errorCode = StatusCodes.Status500InternalServerError,
					errorMessage = "500 Error: Something went wrong. Please contact the administrator for assistance.",
					filePath = filePath
				};
				return StatusCode(errorObject.errorCode, errorObject);
			}
		}
	}
}