using System;
using System.Data;
using System.Linq;
using Newtonsoft.Json.Linq;

namespace ConsoleApplication8
{
    public struct VmSize
    {
        public string Name;
        public int Cores;
        public int MemoryMb;
        public int DataDiskLimit;
        //public string Label;
        public string Tier;
        public bool V2;
        public string Size;
        public bool PremiumDisk;
        public string Series;
        public bool Promo;

        //"name": "Standard_M128s",
        //"numberOfCores": 128,
        //"osDiskSizeInMB": 1047552,
        //"resourceDiskSizeInMB": 4096000,
        //"memoryInMB": 2048000,
        //"maxDataDiskCount": 64

        public VmSize(DataRow row)
        {
            Name = row["InstanceSize"].ToString();
            var n = Name.ToLower();
            var np = n.Split('_');
            var std = n.Contains("_");

            Cores = int.Parse(row["Cores"].ToString());
            MemoryMb = int.Parse(row["MemoryInMb"].ToString());
            DataDiskLimit = int.Parse(row["MaxDataDiskCount"].ToString());
            //Label = row["RoleSizeLabel"].ToString();
            V2 = n.Contains("_v2");
            Tier = std ? np[0] : "Standard";
            Size = Name;
            PremiumDisk = false;
            if (std)
            {
                Size = np[1];
                PremiumDisk = Size.ToLower().Contains("s");
            }
            Promo = Name.IndexOf("Promo", StringComparison.OrdinalIgnoreCase) > -1;

            switch (np.Length)
            {
                case 1: // basic VM, e.g., A0
                    {
                        Series = np[0];
                        break;
                    }
                case 2: // standard VM, e.g., Standard_DS2
                    {
                        Series = np[1];
                        break;
                    }
                case 3: // standard versioned vm e.g., Standard_DS2_v2
                    {
                        Series = $"{np[1]}{np[2]}";
                        break;
                    }
                case 4: // standard versioned vm special rate, e.g., Standard_DS2_v2_Promo
                    {
                        Series = $"{np[1]}{np[2]}";
                        break;
                    }
                default:
                    {
                        Series = np[0];
                        break;
                    }
            }
            Console.WriteLine($"{n}:{Series}");
        }

        public VmSize(JToken row)
        {
            Name = row["name"].ToString();
            var n = Name.ToLower();
            var np = n.Split('_');
            var std = n.Contains("_");
            Cores = int.Parse(row["numberOfCores"].ToString());
            MemoryMb = int.Parse(row["memoryInMB"].ToString());
            DataDiskLimit = int.Parse(row["maxDataDiskCount"].ToString());
            //Label = row["RoleSizeLabel"].ToString();
            V2 = n.Contains("_v2");
            Tier = std ? np[0] : "Standard";
            Size = Name;
            PremiumDisk = false;
            Series = "";
            if (std)
            {
                Size = string.Join("_", np.Skip(1));
                PremiumDisk = Size.ToLower().Contains("s");
            }
            Promo = Name.IndexOf("Promo", StringComparison.OrdinalIgnoreCase) > -1;

            switch (np.Length)
            {
                case 1: // basic VM, e.g., A0
                    {
                        Series = np[0];
                        break;
                    }
                case 2: // standard VM, e.g., Standard_DS2
                    {
                        Series = np[1];
                        break;
                    }
                case 3: // standard versioned vm e.g., Standard_DS2_v2
                    {
                        Series = $"{np[1]}{np[2]}";
                        break;
                    }
                case 4: // standard versioned vm special rate, e.g., Standard_DS2_v2_Promo
                    {
                        Series = $"{np[1]}{np[2]}";
                        break;
                    }
                default:
                    {
                        Series = np[0];
                        break;
                    }
            }
        }
    }
}