using System;
using System.Collections.Generic;
using System.Text;
using Npgsql;
using System.Collections;
using System.Data;

namespace SafeMobileLib
{
    public class DBRadioTypeManager : DBmanager
    {
        public DBRadioTypeManager(string p_server, string p_dbname, string p_user, string p_password, string p_port)
            : base(p_server, p_dbname, p_user, p_password, p_port)
        {
           
        }

        public Response setRadioType(string radioType)
        {
           
            Response resp;

            try
            {
                using (NpgsqlConnection connection = new NpgsqlConnection())
                {

                    connection.ConnectionString = getConnectionString();
                    connection.Open();

                    string command = "SELECT COUNT(value) FROM \"userSettings\" WHERE key=\'radiotype\'";

                    object result = null;
                    using (NpgsqlCommand cmd = new NpgsqlCommand(command, connection))
                    {
                        result = cmd.ExecuteScalar();
                    }

                    if (result.ToString() == "0")
                    {
                        command = $"INSERT INTO \"userSettings\"(user_id, key, value) VALUES ( 0, 'radiotype','{radioType}')";
                        using (NpgsqlCommand cmd = new NpgsqlCommand(command, connection))
                        {
                            cmd.ExecuteNonQuery();
                        }
                        resp = Response.done;
                    }
                    else
                    {
                        command = $"UPDATE \"userSettings\" SET value = '{radioType}' WHERE key = 'radiotype'";
                        using (NpgsqlCommand cmd = new NpgsqlCommand(command, connection))
                        {
                            cmd.ExecuteNonQuery();
                        }
                        resp = Response.alreadyInDB;
                    }
                }
            }
            catch (Exception ee)
            {
                Console.WriteLine(ee.Message + " " + ee.StackTrace + " " + ee.Source);
                resp = Response.SQLerror;
            }
            
            return resp;
        }

        public string getRadioType()
        {
            
            string resp = "";
            
            try
            {
                using (NpgsqlConnection connection = new NpgsqlConnection())
                {

                    connection.ConnectionString = getConnectionString();
                    connection.Open();

                    string command = "SELECT value FROM \"userSettings\" WHERE key='radiotype'";

                    using (NpgsqlCommand cmd = new NpgsqlCommand(command, connection))
                    {
                        resp = cmd.ExecuteScalar().ToString();
                    }
                }
            }
            catch (Exception ee)
            {
                Console.WriteLine(ee.Message, ConsoleColor.Red);
            }
           
            return resp;
        }

        public enum Response
        {
            done,
            alreadyInDB,
            SQLerror,
        }
    }
}