using System.Collections.Generic;
using System.Linq;
using System.Web.Mvc;
using Portoa.Util;
using Portoa.Web;
using Portoa.Web.Controllers;
using VideoGameQuotes.Api;
using VideoGameQuotes.Web.Models;
using VideoGameQuotes.Web.Security;
using VideoGameQuotes.Web.Services;

namespace VideoGameQuotes.Web.Controllers {

	public class GameController : Controller {
		private readonly IGameService gameService;
		private readonly ICurrentUserProvider<User> userProvider;

		public GameController(IGameService gameService, ICurrentUserProvider<User> userProvider) {
			this.gameService = gameService;
			this.userProvider = userProvider;
		}

		[HttpPost, VerifyUser]
		public ActionResult Create(CreateGameModel model) {
			if (!ModelState.IsValid) {
				return Json(this.CreateJsonErrorResponse("Invalid request"));
			}

			if (gameService.FindByNameAndSystems(model.Name, model.SystemIds) != null) {
				return Json(this.CreateJsonResponse("A game with that name for one of those systems already exists"));
			}

			var game = new Game { Name = model.Name, Website = model.Website, Region = model.Region, Creator = userProvider.CurrentUser };
			model.SystemIds.Walk(id => game.AddSystem(new GamingSystem { Id = id }));
			if (model.PublisherIds != null) {
				model.PublisherIds.Walk(id => game.AddPublisher(new Publisher {Id = id}));
			}

			game = gameService.Save(game);
			return Json(this.CreateJsonResponse(data: game.ToDto()));
		}
	}

	public class PublisherController : Controller {
		private readonly IPublisherService publisherService;

		public PublisherController(IPublisherService publisherService) {
			this.publisherService = publisherService;
		}

		[HttpPost, VerifyUser]
		public ActionResult Create(CreatePublisherModel model) {
			if (!ModelState.IsValid) {
				return Json(this.CreateJsonErrorResponse("Invalid request"));
			}

			if (publisherService.FindByName(model.Name) != null) {
				return Json(this.CreateJsonResponse("A publisher with that name already exists"));
			}

			var publisher = publisherService.Save(new Publisher { Name = model.Name, Website = model.Website });
			return Json(this.CreateJsonResponse(data: publisher.ToDto()));
		}
	}

	public class SystemController : Controller {
		private readonly ISystemService systemService;

		public SystemController(ISystemService systemService) {
			this.systemService = systemService;
		}

		[HttpPost, VerifyUser]
		public ActionResult Create(CreateSystemModel model) {
			if (!ModelState.IsValid) {
				return Json(this.CreateJsonErrorResponse("Invalid request"));
			}

			if (systemService.FindByNameOrAbbreviation(model.Name, model.Abbreviation).Any()) {
				return Json(this.CreateJsonResponse("A system with that name or abbreviation already exists"));
			}

			var system = systemService.Save(new GamingSystem { Abbreviation = model.Abbreviation, Name = model.Name, ReleaseDate = model.ReleaseDate });
			return Json(this.CreateJsonResponse(data: system.ToDto()));
		}
	}
}