using Biskilog_Accounting.Server.POSModels;
using Biskilog_Accounting.Shared.ClientContractModels;
using Biskilog_Accounting.Shared.Enums;
using Biskilog_Accounting.Shared.Interfaces;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;

namespace Biskilog_Accounting.Server.Services
{
    public class ConnectionService : IConnectionService
    {
        private readonly BiskilogContext m_context;
        private readonly ITokenService m_tokenService;
        private readonly IConfiguration m_configuration;

        public ConnectionService(BiskilogContext a_context, ITokenService a_tokenService, IConfiguration configuration)
        {
            m_context = a_context;
            m_tokenService = a_tokenService;
            m_configuration = configuration;
        }
        /// <summary>
        /// Prepares and returns the connection string for a client using the specified database id
        /// </summary>
        /// <param name="a_databaseId">Specified database id to use</param>
        /// <returns></returns>
        public string GetClientConnectionString(int a_databaseId)
        {
            Databasemap? dbMap = m_context.Databasemaps.Find(a_databaseId);
            if (dbMap != null)
            {
                string rawConString = m_configuration.GetConnectionString("PrivateConnection")!.ToString();
                return String.Format(rawConString, dbMap.Domain, dbMap.DbName);
            }
            return ConnectionEnums.ConnectionNotEstablished.ToString();
        }
        /// <summary>
        /// Prepare the DB context from the specified connection string
        /// </summary>
        /// <param name="a_context"></param>
        /// <param name="a_connectionString"></param>
        /// <returns>A configured BiskAcdbContext</returns>
        public object PrepareDBContext(string a_connectionString)
        {

            DbContextOptionsBuilder<BiskAcdbContext> acdbContext = new DbContextOptionsBuilder<BiskAcdbContext>();
            acdbContext.UseMySql(a_connectionString, new MariaDbServerVersion(new Version()));
            
            return new BiskAcdbContext(acdbContext.Options);
        }
    }
}