using System.Collections.Generic;
using System.Linq;
using TProduct.Model;

namespace TProduct.Common
{
    public partial class TestStandardHelper
    {
        private static TestStandardHelper instance = null;
        private List<TProduct.Model.TestStandard> _allPump = null;
        private List<TProduct.Model.TestStandard> _allValve = null;
        private TestStandardHelper()
        { 
            _allPump = new List<TestStandard>();
            var gb3216 = BuildGB3216();
            _allPump.Add(gb3216);
            var iso9906 = BuildISO9906();
            _allPump.Add(iso9906);

            _allValve = new List<TestStandard>();
            _allValve.Add(new TestStandard()
            {
                ID = "GB30832-2014",
                Name = "GB30832 2014",
                ProductType = eProductType.Valve,
                Tag = "GB30832-2014",
                IsDefault = true,
                TestTypes = new List<eTestType> { eTestType.ValveTest }
            });
        }
        private static object obj = new object();



        public static TestStandardHelper Instance
        { 
            get
            {
                if (instance == null)
                {
                    lock (obj)
                    {
                        if (instance == null)
                        {
                            instance = new TestStandardHelper();
                        }
                    }
                }
                return instance;
            }
        }

        public List<TProduct.Model.TestStandard> GetStandardList(
            TProduct.Model.eProductType prodcutType,
            TProduct.Model.eTestType testType)
        {
            if (prodcutType == eProductType.Pump)
                return _allPump;
            else if (prodcutType == eProductType.Valve)
                return _allValve;
            else
                return _allPump;
        }

        public TProduct.Model.TestStandard GetDefaultStandard(
            TProduct.Model.eProductType prodcutType,
            TProduct.Model.eTestType testType)
        {
            if (prodcutType == eProductType.Valve)
            {
                var def = _allValve.Find(x => x.IsDefault);
                if (def != null)
                    return def;
                return _allValve.First();
            }
            else
            {
                var def = _allPump.Find(x => x.IsDefault);
                if (def != null)
                    return def;

                return _allPump.First();
            }

        }

        public TProduct.Model.TestStandard GetStandard(
            TProduct.Model.eProductType prodcutType,
            string StandardID)
        {
            if (string.IsNullOrEmpty(StandardID))
                return null;
            if (prodcutType == eProductType.Valve)
            {
                return _allValve.Find(x => x.ID == StandardID);
            }
            else
            {
                return _allPump.Find(x => x.ID == StandardID);
            }

        }

        public List<TProduct.Model.TestGrade> GetGradeList(
            TProduct.Model.eProductType prodcutType, string StandardID)
        {
            string defaultGradeId = null;
            return GetGradeList(prodcutType, StandardID, out defaultGradeId);
        }



        public List<TProduct.Model.TestGrade> GetGradeList(
            TProduct.Model.eProductType prodcutType, string StandardID, out string defaultGradeId)
        {
            defaultGradeId = null;
            if (string.IsNullOrEmpty(StandardID))
                return null;
            if (prodcutType == eProductType.Valve)
            {
                var stand = _allValve.Find(x => x.ID == StandardID);
                if (stand == null || stand.Grades == null || stand.Grades.Count() == 0)
                    return null;

                var defaultGrade = stand.Grades.Find(x => x.IsDefault);
                if (defaultGrade == null)
                {
                    defaultGradeId = stand.Grades.First().ID;
                }
                else
                {
                    defaultGradeId = defaultGrade.ID;
                }
                return stand.Grades;
            }
            else
            {
                {
                    var stand = _allPump.Find(x => x.ID == StandardID);
                    if (stand == null || stand.Grades == null || stand.Grades.Count() == 0)
                        return null;

                    var defaultGrade = stand.Grades.Find(x => x.IsDefault);
                    if (defaultGrade == null)
                    {
                        defaultGradeId = stand.Grades.First().ID;
                    }
                    else
                    {
                        defaultGradeId = defaultGrade.ID;
                    }
                    return stand.Grades;
                }
            }
        }

        public TProduct.Model.TestGrade GetGrade(
            TProduct.Model.eProductType prodcutType, string StandardID, string GradeID)
        {
            if (string.IsNullOrEmpty(StandardID))
                return null;
            if (string.IsNullOrEmpty(GradeID))
                return null;
            var ff = GetGradeList(prodcutType, StandardID).Find(x => x.ID == GradeID);
            if (ff == null)
                return GetGradeList(prodcutType, "GB3216-2016").Find(x => x.ID == "GB3216-2016-2B");
            else
                return ff;
        }
        public TProduct.Model.TestGrade GetDefaultGrade(TProduct.Model.eProductType prodcutType, string StandardID)
        {
            var ff = GetGradeList(prodcutType, StandardID);
            if (ff == null)
                return GetGradeList(prodcutType, "GB3216-2016").Find(x => x.ID == "GB3216-2016-2B");

            var gg = ff.Find(x => x.IsDefault);
            if (gg != null)
                return gg;
            else
                return ff.First();
        }

        public List<Model.TestGradeJudgeItem> GetJudgeItems(TProduct.Model.eProductType prodcutType, string StandardID, string GradeID)
        {
            return GetGrade(prodcutType, StandardID, GradeID).JudgeItems;
        }

    }
}