using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.Http;
using Weee.DAL;
using Weee.Models;
using Weee.Service;
using Weee.Models.ExtensionMethods;
using Weee.Filter;
using System.Net.Http;
using Weee.Models.Paramemter;

namespace Weee.Controllers
{
    public class RiskAssmtWaterUsageController : ApiControllerBase
    {
        private readonly WaterUsageDataService service;
        private readonly WeeeParameterDataService parameterservice;
        private readonly WeeeDataContext _db;
        public RiskAssmtWaterUsageController(WaterUsageDataService d, WeeeParameterDataService s, WeeeDataContext db)
            : base(d)
        {
            service = d;
            parameterservice = s;
            _db = db;
        }

        [Route("api/RiskAssmtWaterUsage/GetWaterUsages/{LCAID}")]
        //[Filter.ApiMultilanguage]disable obsolete warning, not sure OK or not
        public object Get(int LCAID)
        {
            return new
            {
                WaterUsages = service.GetSheet<LCARiskAssmtSurveyForm_WaterUsages>(LCAID),
                options = parameterservice.GetYearlyParameterOptions(Categories.Water),
                SheetHeader = service.GetSheetHeader(LCAID,Categories.Water)
            };
        }

        [Route("api/RiskAssmtWaterUsage/SaveSheetHeader")]
        [HttpPost]
        public HttpResponseMessage SaveHeader(SheetHeader header)
        {
            return this.SaveSheetHeader(service, Categories.Water, header);
        }

        [Route("api/RiskAssmtWaterUsage/SaveWaterUsages")]
        [HttpPost]
        [ApiEditableRiskAssmtAttribute("ToBeSave", true)]
        public object SaveAll(IEnumerable<LCARiskAssmtSurveyForm_WaterUsages> ToBeSave)
        {
            if (!ModelState.IsValid)
            {
                throw new Exception("error");
            }
            if (ToBeSave == null || ToBeSave.Count() == 0) return null;
            var parameterIDs = ToBeSave
                                .Select(x => x.ParameterID)
                                .Where(x => x != null)
                                .Distinct()
                                .Cast<int>();
            var parameters = _db.Parameters
                                .Where(x => parameterIDs.Contains(x.ID))
                                .Select(x => new { x.ID, x.Value });
            foreach (var item in ToBeSave.Where(x => x.ParameterID != null))
            {
                item.ID = 0;
                if (item.ParameterID != null)
                    item.UpdateKgCO2e(parameters.First(x => x.ID == item.ParameterID).Value);
                else
                    item.KgCO2e = 0;

            }
            service.DeleteSheet<LCARiskAssmtSurveyForm_WaterUsages>(ToBeSave.First().LCAID);
            var result = service.SaveSheet(ToBeSave);
            return new { result = result };
        }

    }
}