using System;
using System.Collections.Generic;
using TUCAMAPI;

namespace TUCamera
{
    class TUCameraImageSaveFixedNumber : TUCameraIFrameProcess
    {
        private TUCamera m_camera;
        private FrameProcesserState m_state = FrameProcesserState.STOP;
        private DateTimeTools m_tools = null;
        private int m_count;
        private string m_savePath;
        private string m_imagePrefix;
        private TUIMG_FORMATS m_imageFormat;
        public List<string> m_imgList = new List<string>();

        /// <summary>
        /// 拍摄固定张数图片
        /// </summary>
        /// <param name="savePath">文件保存路径</param>
        /// <param name="imagePrefix">文件名前缀</param>
        /// <param name="imageFormat">文件保存格式</param>
        /// <param name="timeLapse">时间间隔</param>
        /// <param name="count">拍摄次数</param>
        /// <param name="imgList">拍摄完成的图片List</param>
        public TUCameraImageSaveFixedNumber(TUCamera camera, string savePath, string imagePrefix, TUIMG_FORMATS imageFormat, UInt64 timeLapseMs, int count)
        {
            m_camera = camera;
            m_savePath = savePath;
            m_imagePrefix = imagePrefix;
            m_imageFormat = imageFormat;
            m_count = count;
            m_tools = new DateTimeTools(timeLapseMs);
            if (!System.IO.Directory.Exists(m_savePath))
            {
                System.IO.Directory.CreateDirectory(m_savePath);//不存在就创建目录
            }
        }
        
        public void DoProcess(ref TUCAM_FRAME frame)
        {

            if (m_state != FrameProcesserState.PLAY)
            {
                return;
            }

            if (m_tools.Timeout())
            {
                m_tools.Restart();
                DateTime now = DateTime.Now;
                string fileName = m_savePath + "\\" + m_imagePrefix + now.ToString("yyyyMMddHHmmssfff");
                bool result = m_camera.SaveImage(ref frame, fileName, m_imageFormat);
                if (result)
                {
                    m_imgList.Add(creatImageName(fileName, m_imageFormat));
                    if (m_count > 0)
                    {
                        m_count--;
                    }
                }
                if (m_count <= 0)
                {
                    Stop();
                }
            } 
        }

        public void Stop()
        {
            if (m_state != FrameProcesserState.STOP)
            {
                m_state = FrameProcesserState.STOP;
                m_camera.CallbackImageSave(this, true, m_imgList);
            }
        }

        public void Start()
        {
            m_state = FrameProcesserState.PLAY;
        }

        public void Pause()
        {
            m_state = FrameProcesserState.PAUSE;
        }

        public void Resume()
        {
            m_state = FrameProcesserState.PLAY;
        }

        public FrameProcesserState GetStatus()
        {
            return m_state;
        }

        private string creatImageName(string fileName, TUIMG_FORMATS imageFormat)
        {
            // string fileName = fileName;
            switch (imageFormat)
            {
                case TUIMG_FORMATS.TUFMT_PNG:
                    fileName = fileName + ".png";
                    break;
                case TUIMG_FORMATS.TUFMT_BMP:
                    fileName = fileName + ".bmp";
                    break;
                case TUIMG_FORMATS.TUFMT_TIF:
                    fileName = fileName + ".tif";
                    break;
                default:
                    fileName = fileName + ".jpg";
                    break;
            }
            return fileName;
        }

    }
}