using System.Collections.Generic;

namespace DTS.Common.Classes.TMAT
{

    /// <summary>
    /// this class handles a TMATS template in only one file
    /// </summary>
    public class TmtSingleFile : TmtBase
    {
        /// <summary>
        /// reads all lines from the file in the given location and prepare to update values
        /// </summary>
        /// <param name="templateLocation"></param>
        public TmtSingleFile(string templateLocation)
        {
            if (System.IO.File.Exists(templateLocation))
            {
                _allLines.AddRange(System.IO.File.ReadAllLines(templateLocation));
            }
        }

        /// <summary>
        /// updates the files in the file with a given value
        /// </summary>
        public override void UpdateValue(TMTChannelKeysEx key, string value, int channelNumber)
        {
            var pattern = TMTKey.GetKey(key);
            for (var i = 0; i < _allLines.Count; i++)
            {
                if (_allLines[i].Contains(pattern))
                {
                    _allLines[i] = _allLines[i].Replace(pattern, value);
                }
            }
        }
        /// <summary>
        /// updates the fields in the file with a given value
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public override void UpdateValue(TMTGlobalKeys key, string value)
        {
            var pattern = TMTKey.GetKey(key);
            for (int i = 0; i < _allLines.Count; i++)
            {
                if (_allLines[i].Contains(pattern))
                {
                    _allLines[i] = _allLines[i].Replace(pattern, value);
                }
            }
        }
        /// <summary>
        /// updates the files in the file with the given value
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        /// <param name="channelNumber"></param>
        public override void UpdateValue(TMTChannelKeys key, string value, int channelNumber)
        {
            var pattern = TMTKey.GetKey(key, channelNumber);
            for (int i = 0; i < _allLines.Count; i++)
            {
                if (_allLines[i].Contains(pattern))
                {
                    _allLines[i] = _allLines[i].Replace(pattern, value);
                }
            }
        }
        /// <summary>
        /// all lines in the TMT file
        /// </summary>
        private readonly List<string> _allLines = new List<string>();

        /// <summary>
        /// returns all lines in the TMT file
        /// </summary>
        /// <returns></returns>
        public override string[] GetAllLines()
        {
            return _allLines.ToArray();
        }
    }

}