using Mirle.Component.MPLC.DataBlocks;
using Mirle.Component.MPLC.Interfaces;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;

namespace Mirle.Component.MPLC.FileData
{
    /// <summary>
    /// 
    /// </summary>
    public class FileDataViewer : IMPLCProvider
    {
        /// <summary>
        /// 建構式
        /// </summary>
        /// <param name="fileReader">檔案讀取器</param>
        public FileDataViewer(FileReader fileReader)
        {
            _fileReader = fileReader;
            foreach (FileDataBlock fileReaderDataBlock in _fileReader.GetDataBlocks())
            {
                _dataBlocks.Add(new FileDataBlock(fileReaderDataBlock.DeviceRange, fileReaderDataBlock.ColumnIndex));
            }
        }
        /// <summary>
        /// 檔案讀取器
        /// </summary>
        private readonly FileReader _fileReader;
        /// <summary>
        /// 資料區塊
        /// </summary>
        private readonly List<FileDataBlock> _dataBlocks = new List<FileDataBlock>();
        /// <summary>
        /// 是否連線
        /// </summary>
        public bool IsConnected => true;
        /// <summary>
        /// 
        /// </summary>
        /// <param name="begin"></param>
        /// <param name="end"></param>
        /// <returns></returns>
        public IEnumerable<DateTime> Query(DateTime begin, DateTime end)
        {
            return _fileReader.GetDateTimeIndexes().Where(t => t.TimeOfDay >= begin.TimeOfDay && t.TimeOfDay <= end.TimeOfDay).OrderBy(i => i);
        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="index"></param>
        public void RefreshRawData(DateTime index)
        {
            foreach (FileDataBlock block in _dataBlocks)
            {
                try
                {
                    byte[] newByteArray = _fileReader.GetRawDataByDateTimeIndex(index, block.ColumnIndex);
                    if (newByteArray != null)
                        block.SetRawData(newByteArray);
                }
                catch (Exception ex)
                { 
                    Debug.WriteLine($"{ex.Message}-{ex.StackTrace}"); 
                }
            }
        }
        /// <summary>
        /// 取得位元
        /// </summary>
        /// <param name="address">位置</param>
        /// <returns>True/False</returns>
        public bool GetBit(string address)
        {
            foreach (var block in _dataBlocks)
            {
                if (block.TryGetBit(address, out bool value))
                    return value;
            }
            return false;
        }
        /// <summary>
        /// 設置位元開啟
        /// </summary>
        /// <param name="address">位置</param>
        public void SetBitOn(string address)
        {
            return;
        }
        /// <summary>
        /// 設置位元關閉
        /// </summary>
        /// <param name="address">位置</param>
        public void SetBitOff(string address)
        {
            return;
        }
        /// <summary>
        /// 讀取字元
        /// </summary>
        /// <param name="address">位置</param>
        /// <returns>字元</returns>
        public int ReadWord(string address)
        {
            foreach (var block in _dataBlocks)
            {
                if (block.TryGetWord(address, out int value))
                    return value;
            }
            return 0;
        }
        /// <summary>
        /// 寫入字元
        /// </summary>
        /// <param name="address">位置</param>
        /// <param name="data">字元</param>
        public void WriteWord(string address, int data)
        {
            return;
        }
        /// <summary>
        /// 讀取多個字元
        /// </summary>
        /// <param name="startAddress">起始位置</param>
        /// <param name="length">長度</param>
        /// <returns>字元陣列</returns>
        public int[] ReadWords(string startAddress, int length)
        {
            foreach (var block in _dataBlocks)
            {
                if (block.TryGetWords(startAddress, out int[] data, length))
                    return data;
            }
            return new int[length];
        }
        /// <summary>
        /// 寫入多個字元
        /// </summary>
        /// <param name="startAddress">起始位置</param>
        /// <param name="data">字元陣列</param>
        public void WriteWords(string startAddress, int[] data)
        {
            return;
        }
    }
}