#region Copyright
// /************************************************************************
//    Copyright (c) 2016 Jamie Rees
//    File: ApiModule.cs
//    Created By: Jamie Rees
//   
//    Permission is hereby granted, free of charge, to any person obtaining
//    a copy of this software and associated documentation files (the
//    "Software"), to deal in the Software without restriction, including
//    without limitation the rights to use, copy, modify, merge, publish,
//    distribute, sublicense, and/or sell copies of the Software, and to
//    permit persons to whom the Software is furnished to do so, subject to
//    the following conditions:
//   
//    The above copyright notice and this permission notice shall be
//    included in all copies or substantial portions of the Software.
//   
//    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
//    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
//    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
//    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
//    LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
//    OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
//    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//  ************************************************************************/
#endregion
using System;
using System.Collections.Generic;

using Nancy;
using Nancy.ModelBinding;
using Nancy.Validation;

using PlexRequests.Core;
using PlexRequests.Store;

namespace PlexRequests.UI.Modules
{
    public class ApiModule : BaseApiModule
    {
        public ApiModule(IRequestService service) : base("api/v1/")
        {
            Get["/requests"] = x => GetRequests();
            Post["/requests"] = x => CreateRequest();
            Put["/requests"] = x => UpdateRequest();
            Delete["/requests"] = x => DeleteRequest();

            RequestService = service;
        }

        private IRequestService RequestService { get; }

        public Response GetRequests()
        {
            var apiModel = new ApiModel<List<RequestedModel>> { Data = new List<RequestedModel>() };

            var requests = RequestService.GetAll();
            apiModel.Data.AddRange(requests);

            return ReturnReponse(apiModel);
        }

        public Response CreateRequest()
        {
            var request = this.Bind<RequestedModel>();
            var valid = this.Validate(request);
            if (!valid.IsValid)
            {
                return ReturnValidationReponse(valid);
            }

            var apiModel = new ApiModel<bool>();
            var result = RequestService.AddRequest(request);

            if (result == -1)
            {
                apiModel.Error = true;
                apiModel.ErrorMessage = "Could not insert the new request into the database. Internal error.";
                return ReturnReponse(apiModel);
            }

            apiModel.Data = true;

            return ReturnReponse(apiModel);
        }

        public Response UpdateRequest()
        {
            var request = this.Bind<RequestedModel>();
            var valid = this.Validate(request);
            if (!valid.IsValid)
            {
                return ReturnValidationReponse(valid);
            }


            var apiModel = new ApiModel<bool>();
            var result = RequestService.UpdateRequest(request);

            if (!result)
            {
                apiModel.Error = true;
                apiModel.ErrorMessage = "Could not update the request into the database. Internal error.";
                return ReturnReponse(apiModel);
            }

            apiModel.Data = true;

            return ReturnReponse(apiModel);
        }

        public Response DeleteRequest()
        {
            var request = this.Bind<RequestedModel>();
            var valid = this.Validate(request);
            if (!valid.IsValid)
            {
                return ReturnValidationReponse(valid);
            }
            var apiModel = new ApiModel<bool>();

            try
            {
                RequestService.DeleteRequest(request);
                apiModel.Data = true;

                return ReturnReponse(apiModel);
            }
            catch (Exception)
            {
                apiModel.Error = true;
                apiModel.ErrorMessage = "Could not delete the request from the database. Internal error.";
                return ReturnReponse(apiModel);
            }
        }
    }
}