DLL_VINCheckLib/VINCheckLibrary/Regions.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace VINCheckLibrary
{
    public class Regions
    {
        public string Region { get; private set; }
        public string Country { get; private set; }
        public string Key { get; private set; }

        private static Dictionary<char, (string, Dictionary<string, string>)> Codes = new Dictionary<char, (string, Dictionary<string, string>)>
        {
            { 'A', ("Africa", new Dictionary<string, string> {
                    { "ABCDEFGH", "South Africa" },
                    { "JKLMN", "Ivory Coast" }
                })
            },

            { 'B', ("Africa", new Dictionary<string, string> {
                    { "ABCDE", "Angola" },
                    { "FGHJK", "Kenya" },
                    { "LMNPR", "Tanzania" }
                })
            },

            { 'C', ("Africa", new Dictionary<string, string> {
                    { "ABCDE", "Benin" },
                    { "FGHJK", "Madagascar" },
                    { "LMNPR", "Tunisia" }
                })
            },

            { 'D', ("Africa", new Dictionary<string, string> {
                    { "ABCDE", "Egypt" },
                    { "FGHJK", "Morocco" },
                    { "LMNPR", "Zambia" }
                })
            },

            { 'E', ("Africa", new Dictionary<string, string> {
                    { "ABCDE", "Ethiopia" },
                    { "FGHJK", "Mozambique" }
                })
            },

            { 'F', ("Africa", new Dictionary<string, string> {
                    { "ABCDE", "Ghana" },
                    { "FGHJK", "Nigeria" }
                })
            },

            //~//

            { 'J', ("Asia", new Dictionary<string, string> {
                    { "ABCDEFGHJKLMNPRST", "Japan" }
                })
            },

            { 'K', ("Asia", new Dictionary<string, string> {
                    { "ABCDE", "Sri Lanka" },
                    { "FGHJK", "Israel" },
                    { "LMNPR", "South Korea" },
                    { "STUVWXYZ1234567890", "Kazakhstan" }
                })
            },

            { 'L', ("Asia", new Dictionary<string, string> {
                    { "ABCDEFGHJKLMNPRSTUVWXYZ1234567890", "China" }
                })
            },

            { 'M', ("Asia", new Dictionary<string, string> {
                    { "ABCDE", "India" },
                    { "FGHJK", "Indonesia" },
                    { "LMNPR", "Thailand" }
                })
            },

            { 'N', ("Asia", new Dictionary<string, string> {
                    { "FGHJK", "Pakistan" },
                    { "LMNPR", "Turkey" }
                })
            },

            { 'P', ("Asia", new Dictionary<string, string> {
                    { "ABCDE", "Philippines" },
                    { "FGHJK", "Singapore" },
                    { "LMNPR", "Malaysia" }
                })
            },

            { 'R', ("Asia", new Dictionary<string, string> {
                    { "ABCDE", "UAE" },
                    { "FGHJK", "Taiwan" },
                    { "LMNPR", "Vietnam" },
                    { "STUVWXYZ1234567890", "Saudi Arabia" }
                })
            },

            //~//

            { 'S', ("Europe", new Dictionary<string, string> {
                    { "ABCDEFGHJKLM", "Great Britain" },
                    { "NPRST", "Germany" },
                    { "UVWXYZ", "Poland" },
                    { "1234", "Latvia" }
                })
            },

            { 'T', ("Europe", new Dictionary<string, string> {
                    { "ABCDEFGH", "Switzerland" },
                    { "JKLMNP", "Czech" },
                    { "RSTUV", "Hungary" },
                    { "WXYZ1", "Portugal" }
                })
            },

            { 'U', ("Europe", new Dictionary<string, string> {
                    { "HJKLM", "Denmark" },
                    { "NPRST", "Ireland" },
                    { "UVWXYZ", "Romania" },
                    { "567", "Slovakia" }
                })
            },

            { 'V', ("Europe", new Dictionary<string, string> {
                    { "ABCDE", "Austria" },
                    { "FGHJKLMNPR", "France" },
                    { "STUVW", "Spain" },
                    { "XYZ12", "Serbia" },
                    { "345", "Croatia" },
                    { "67890", "Estonia" }
                })
            },

            { 'W', ("Europe", new Dictionary<string, string> {
                    { "ABCDEFGHJKLMNPRSTUVWXYZ1234567890", "Germany" }
                })
            },

            { 'X', ("Europe", new Dictionary<string, string> {
                    { "ABCDE", "Bulgaria" },
                    { "FGHJK", "Greece" },
                    { "LMNPR", "Netherlands" },
                    { "STUVW", "USSR/CIS" },
                    { "XYZ12", "Luxembourg" },
                    { "34567890", "Russia" }
                })
            },

            { 'Y', ("Europe", new Dictionary<string, string> {
                    { "ABCDE", "Belgium" },
                    { "FGHJK", "Finland" },
                    { "LMNPR", "Malta" },
                    { "STUVW", "Sweden" },
                    { "XYZ12", "Norway" },
                    { "345", "Belarus" },
                    { "67890", "Ukraine" }
                })
            },

            { 'Z', ("Europe", new Dictionary<string, string> {
                    { "ABCDEFGHJKLMNPR", "Italy" },
                    { "XYZ12", "Slovenia" },
                    { "345", "Lithuania" },
                    { "67890", "Russia" }
                })
            },

             //~//

            { '1', ("North America", new Dictionary<string, string> {
                    { "ABCDEFGHJKLMNPRSTUVWXYZ1234567890", "USA" }
                })
            },

            { '2', ("North America", new Dictionary<string, string> {
                    { "ABCDEFGHJKLMNPRSTUVWXYZ1234567890", "Canada" }
                })
            },

            { '3', ("North America", new Dictionary<string, string> {
                    { "ABCDEFGHJKLMNPRSTUVW", "Mexico" },
                    { "XYZ1234567", "Costa Rica" },
                    { "890", "Cayman islands" }
                })
            },

            { '4', ("North America", new Dictionary<string, string> {
                    { "ABCDEFGHJKLMNPRSTUVWXYZ1234567890", "USA" }
                })
            },

            { '5', ("North America", new Dictionary<string, string> {
                    { "ABCDEFGHJKLMNPRSTUVWXYZ1234567890", "USA" }
                })
            },

             //~//

            { '6', ("Ocenia", new Dictionary<string, string> {
                    { "ABCDEFGHJKLMNPRSTUVW", "Australia" }
                })
            },

            { '7', ("Ocenia", new Dictionary<string, string> {
                    { "ABCDE", "New Zealand" }
                })
            },

             //~//

            { '8', ("South America", new Dictionary<string, string> {
                    { "ABCDE", "Argentina" },
                    { "FGHJK", "Chile" },
                    { "LMNPR", "Ecuador" },
                    { "STUVW", "Peru" },
                    { "XYZ12", "Venezuela" },
                })
            },

            { '9', ("South America", new Dictionary<string, string> {
                    { "ABCDE", "Brazil" },
                    { "FGHJK", "Colombia" },
                    { "LMNPR", "Paraguay" },
                    { "STUVW", "Uruguay" },
                    { "XYZ12", "Trinidad and Tobago" },
                    { "3456789", "Brazil" }
                })
            },
        };

        public Regions(string code)
        {
            if (Codes.TryGetValue(code[0], out var value))
            {
                Region = value.Item1;
                foreach (var pair in value.Item2)
                {
                    if (pair.Key.Contains(code[1]))
                    {
                        Country = pair.Value;
                        break;
                    }
                }
            }
        }
    }
}