using FreeSql.Internal.CommonProvider;
using FreeSql.Oracle.Curd;
using System;
using System.Data.Common;
using System.Text.RegularExpressions;
using System.Collections.Concurrent;
using System.Threading;
using System.IO;

namespace FreeSql.Oracle
{

    public class OracleProvider<TMark> : BaseDbProvider, IFreeSql<TMark>
    {
        public override ISelect<T1> CreateSelectProvider<T1>(object dywhere) => new OracleSelect<T1>(this, this.InternalCommonUtils, this.InternalCommonExpression, dywhere);
        public override IInsert<T1> CreateInsertProvider<T1>() => new OracleInsert<T1>(this, this.InternalCommonUtils, this.InternalCommonExpression);
        public override IUpdate<T1> CreateUpdateProvider<T1>(object dywhere) => new OracleUpdate<T1>(this, this.InternalCommonUtils, this.InternalCommonExpression, dywhere);
        public override IDelete<T1> CreateDeleteProvider<T1>(object dywhere) => new OracleDelete<T1>(this, this.InternalCommonUtils, this.InternalCommonExpression, dywhere);
        public override IInsertOrUpdate<T1> CreateInsertOrUpdateProvider<T1>() => new OracleInsertOrUpdate<T1>(this, this.InternalCommonUtils, this.InternalCommonExpression);

        public OracleProvider(string masterConnectionString, string[] slaveConnectionString, Func<DbConnection> connectionFactory = null)
        {
            this.InternalCommonUtils = new OracleUtils(this);
            this.InternalCommonExpression = new OracleExpression(this.InternalCommonUtils);

            this.Ado = new OracleAdo(this.InternalCommonUtils, masterConnectionString, slaveConnectionString, connectionFactory);
            this.Aop = new AopProvider();

            this.DbFirst = new OracleDbFirst(this, this.InternalCommonUtils, this.InternalCommonExpression);
            this.CodeFirst = new OracleCodeFirst(this, this.InternalCommonUtils, this.InternalCommonExpression);

#if oledb
            Select0Provider._dicMethodDataReaderGetValue[typeof(Guid)] = typeof(DbDataReader).GetMethod("GetGuid", new Type[] { typeof(int) });
            Select0Provider._dicMethodDataReaderGetValue[typeof(bool)] = typeof(DbDataReader).GetMethod("GetBoolean", new Type[] { typeof(int) });
            Select0Provider._dicMethodDataReaderGetValue[typeof(int)] = typeof(DbDataReader).GetMethod("GetDecimal", new Type[] { typeof(int) });
            Select0Provider._dicMethodDataReaderGetValue[typeof(long)] = typeof(DbDataReader).GetMethod("GetDecimal", new Type[] { typeof(int) });
            Select0Provider._dicMethodDataReaderGetValue[typeof(decimal)] = typeof(DbDataReader).GetMethod("GetDecimal", new Type[] { typeof(int) });
            Select0Provider._dicMethodDataReaderGetValue[typeof(DateTime)] = typeof(DbDataReader).GetMethod("GetDateTime", new Type[] { typeof(int) });
            Select0Provider._dicMethodDataReaderGetValue[typeof(string)] = typeof(DbDataReader).GetMethod("GetString", new Type[] { typeof(int) });

            this.Aop.CommandBefore += (_, e) =>
            {
                if (e.Command.Parameters.Count > 0)
                    e.Command.CommandText = _regCommandText.Replace(e.Command.CommandText, "?");
            };

            this.Aop.AuditDataReader += (_, e) =>
            {
                
            };
        }
        readonly static Regex _regCommandText = new Regex(@"\:[_\w]+", RegexOptions.Compiled);
#else
        }
#endif

        ~OracleProvider() => this.Dispose();
        int _disposeCounter;
        public override void Dispose()
        {
            if (Interlocked.Increment(ref _disposeCounter) != 1) return;
            (this.Ado as AdoProvider)?.Dispose();
        }
    }
}