using DbAPI.Connections;
using DbAPI.Errors;
using DTS.Common.Interface.Database;
using System;
using System.Data;
using System.Data.SqlClient;
using DTS.Common.Interface.Groups.GroupList;
using System.Collections.Generic;
using DTS.Common.Interface.Groups;
using DTS.Common.Classes.Groups;
using DbAPI.Logging;
using System.Diagnostics;

namespace DbAPI.GroupHardware
{
    /// <summary>
    /// Handles GroupHardware functions
    /// </summary>
    internal class GroupHardware : IGroupHardware
    {
        public ulong GroupHardwareInsert(IUserDbRecord user,
            IConnectionDetails connection,
            GroupHardwareDbRecord groupHardwareDbRecord,
            out int newId,
            out string errorMessageString)
        {
            newId = -1;
            errorMessageString = string.Empty;

            if (!DbAPI.Connections.IsUserLoggedIn(user, connection))
            {
                return ErrorCodes.ERROR_ACCESS_DENIED;
            }
            var ret = ConnectionManager.GetSqlCommand(connection, out var cmd, "sp_GroupHardwareInsert");
            if (ret != ErrorCodes.ERROR_SUCCESS)
            {
                return ret;
            }
            try
            {
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.Add(new SqlParameter("@GroupId", SqlDbType.Int) { Value = groupHardwareDbRecord.GroupId });
                cmd.Parameters.Add(new SqlParameter("@DASId", SqlDbType.Int) { Value = groupHardwareDbRecord.DASId });
                var newGroupHardwareIdParam = new SqlParameter("@new_id", SqlDbType.Int) { Direction = ParameterDirection.Output };
                cmd.Parameters.Add(newGroupHardwareIdParam);
                var errorNumber = new SqlParameter("@errorNumber", SqlDbType.Int) { Direction = ParameterDirection.Output };
                cmd.Parameters.Add(errorNumber);
                var errorMessage = new SqlParameter("@errorMessage", SqlDbType.NVarChar, 255) { Direction = ParameterDirection.Output };
                cmd.Parameters.Add(errorMessage);

                cmd.ExecuteNonQuery();

                if (null != errorNumber.Value)
                {
                    if (Convert.ToInt32(errorNumber.Value) != 0)
                    {
                        LogManager.Log(TraceEventType.Error, LogManager.LogEvents.TestSetups, $"GroupHardwareInsert failed: {errorNumber.Value} {errorMessage.Value}");
                        errorMessageString = errorMessage.Value.ToString();
                        return Convert.ToUInt32(errorNumber.Value);
                    }
                }

                newId = Convert.ToInt32(newGroupHardwareIdParam.Value);
                return ErrorCodes.ERROR_SUCCESS;
            }
            catch (Exception ex)
            {
                LogManager.Log(TraceEventType.Error, LogManager.LogEvents.TestSetups, $"GroupHardwareInsert failed: {ex.Message}");
                return ErrorCodes.ERROR_UNKNOWN;
            }
            finally
            {
                cmd.Connection.Dispose();
                cmd.Dispose();
            }
        }

        public ulong GroupHardwareGet(IUserDbRecord user,
            IConnectionDetails connection,
            int? groupId,
            string serialNumber,
            bool? embedded,
            out GroupHardwareDbRecord[] groupHardwareRecords)
        {
            groupHardwareRecords = null;
            var list = new List<GroupHardwareDbRecord>();
            if (!DbAPI.Connections.IsUserLoggedIn(user, connection))
            {
                return ErrorCodes.ERROR_ACCESS_DENIED;
            }
            var ret = ConnectionManager.GetSqlCommand(connection, out var cmd, "sp_GroupHardwareGet");
            if (ret != ErrorCodes.ERROR_SUCCESS)
            {
                return ret;
            }
            try
            {
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.Add(new SqlParameter("@GroupId", SqlDbType.Int) { Value = groupId });
                cmd.Parameters.Add(new SqlParameter("@SerialNumber", SqlDbType.NVarChar) { Value = serialNumber });
                cmd.Parameters.Add(new SqlParameter("@Embedded", SqlDbType.Bit) { Value = embedded });

                using (var reader = cmd.ExecuteReader())
                {
                    while (reader.Read())
                    {
                        list.Add(new GroupHardwareDbRecord(reader));
                    }
                    groupHardwareRecords = list.ToArray();
                }
                return ErrorCodes.ERROR_SUCCESS;
            }
            catch (Exception ex)
            {
                LogManager.Log(TraceEventType.Error, LogManager.LogEvents.TestSetups, $"GroupsGet failed - {ex.Message}");
                return ErrorCodes.ERROR_UNKNOWN;
            }
            finally
            {
                cmd.Connection.Dispose();
            }
        }

        public ulong GroupHardwareDelete(IUserDbRecord user,
            IConnectionDetails connection,
            int? groupId,
            int? dasId,
            out string errorString)
        {
            errorString = string.Empty;
            if (!DbAPI.Connections.IsUserLoggedIn(user, connection))
            {
                return ErrorCodes.ERROR_ACCESS_DENIED;
            }
            var ret = ConnectionManager.GetSqlCommand(connection, out var cmd, "sp_GroupHardwareDelete");
            if (ret != ErrorCodes.ERROR_SUCCESS)
            {
                return ret;
            }
            var errorNumberULong = ErrorCodes.ERROR_SUCCESS;
            try
            {
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.Add(new SqlParameter("@GroupId", SqlDbType.Int) { Value = groupId });
                cmd.Parameters.Add(new SqlParameter("@DASId", SqlDbType.Int) { Value = dasId });
                var errorNumber = new SqlParameter("@errorNumber", SqlDbType.Int) { Direction = ParameterDirection.Output };
                cmd.Parameters.Add(errorNumber);
                var errorMessage = new SqlParameter("@errorMessage", SqlDbType.NVarChar, 255) { Direction = ParameterDirection.Output };
                cmd.Parameters.Add(errorMessage);

                cmd.ExecuteNonQuery();

                if (null != errorNumber.Value)
                {
                    if (Convert.ToInt32(errorNumber.Value) != 0)
                    {
                        errorNumberULong = Convert.ToUInt64(errorNumber.Value);
                        throw new Exception((string)errorMessage.Value);
                    }
                }
            }
            catch (Exception ex)
            {
                //Concatenate any error string returned from the stored procedure call
                errorString = $"{ex.Message}; {errorString}";
                return ErrorCodes.ERROR_UNKNOWN;
            }
            finally
            {
                cmd.Connection.Dispose();
            }

            return errorNumberULong;
        }
    }
}