//-----------------------------------------------------------------------
// <copyright file="DataFormatEngine.cs" company="bedug.com">
//     Copyright © 2012 Nils Hammar. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
/*
 * Software to access vehicle information via the OBD-II connector.
 * 
 * Copyright © 2012 Nils Hammar
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Alternative licensing is possible, see the licensing document.
 * 
 * The above text may not be removed or modified.
 */

namespace SimProtocol.SimData
{
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using SharedObjects.SimData;

    /// <summary>
    /// Get the specific data format for the given mode encountered.
    /// </summary>
    public class DataFormatEngine : IDataFormatEngine
    {
        /// <summary>
        /// Gets length of PID field.
        /// </summary>
        public int pidLen { get; private set; }

        /// <summary>
        /// Gets number of pad bytes after mode byte in incoming data.
        /// </summary>
        public uint padBytes { get; private set; }

        /// <summary>
        /// Gets size of Mode + PID in response.
        /// </summary>
        public int responseHdrSize { get; private set; }

        /// <summary>
        /// Initializes a new instance of the <see cref="DataFormatEngine" /> class.
        /// </summary>
        /// <param name="mode">Mode to get data format data for.</param>
        public DataFormatEngine(uint mode)
        {
            switch (mode)
            {
                case 0x03:
                case 0x07:
                case 0x0A:
                    this.pidLen = 0;
                    this.responseHdrSize = 1;
                    this.padBytes = 0;
                    break;

                case 0x22:
                    this.pidLen = 2;
                    this.responseHdrSize = 3;
                    this.padBytes = 0;
                    break;

                case 0xAA:
                    this.pidLen = 0;
                    this.responseHdrSize = 3;
                    this.padBytes = 0;
                    break;

                case 0xA8:
                    this.pidLen = 3;
                    this.responseHdrSize = 1;
                    this.padBytes = 1;
                    break;

                default:
                    this.pidLen = 1;
                    this.responseHdrSize = 2;
                    this.padBytes = 0;
                    break;
            }
        }
    }
}