#include <stdio.h>
#include <stdlib.h>
#include "ShimLib.h"

#include <Windows.h>
#include <process.h>
#include <time.h>

typedef  void(*error_cb)(const char* msg);

int statusCountFlag = 0;
error_cb innerCallback = NULL;

void ThreadFunc(void*);
HANDLE th;
HANDLE e1,e2;
int InitLib(error_cb cb) {
	innerCallback = cb;
	innerCallback("11111");
	e1 = CreateEvent(NULL, FALSE, FALSE, "e1");
	e2 = CreateEvent(NULL, FALSE, FALSE, "e2");
	th = _beginthread(ThreadFunc,0, NULL);
	return 0;
}

volatile int running = 1;
volatile int progress = 0;
volatile int status = READY;
volatile int stop_flag = 0;
char output_path[256] = {0};

void ThreadFunc(void* args){
	while (running){
		WaitForSingleObject(e1, INFINITE);
		status = SCANNING;
        stop_flag = 0;
		progress = 0;
		for (int i = 0; i < 50; ++i) {
			if (stop_flag > 0){
				stop_flag = 0;
				break;
			}

            if (i == 20){
                progress = 139;
                WaitForSingleObject(e2, INFINITE);
            }
            else if ( i > 20 && i<35){
                progress = i * 2 + 100;
            }
            else if(i >= 35){
                progress = i * 2 + 200;
            }
            else{
                progress = i *2;
            }
			Sleep(300);
		}
        status = READY;
	}
}

int ScanControl(ScanAction actionType) {

	switch (actionType) {
        case SCAN:
            printf("Do Scan!\r\n");
            statusCountFlag = 2;
            SYSTEMTIME st = {0};
            GetLocalTime(&st);
            sprintf(output_path, "%d%02d%02dT%02d%02d%02d",
                    st.wYear,
                    st.wMonth,
                    st.wDay,
                    st.wHour,
                    st.wMinute,
                    st.wSecond);
            SetEvent(e1);
            break;
        case PREVIEW_SCAN:
            statusCountFlag = 1;
            status = SCANNING;
            printf("Do preview!\r\n");
            break;
        case STOP:
            statusCountFlag = 0;
            stop_flag = 1;
            progress = 0;
            status = READY;
            printf("Stop everything!\r\n");
            break;
        case SCAN_CONTINUE:
            SetEvent(e2);
            break;
    }
	return 0;
}



StatusInfo GetStatus() {
	StatusInfo inf;
	inf.status = status;
	inf.progress = progress;
	return inf;
}

//result, 0 success, other false
int SetScanInfo(const char* jsonString, int empty) {
	return 0;
}

int preivew_change_flag = 0;

const size_t Row = 140;
const size_t Col = 140;

#define BUFFER_SIZE Row * Col

const char* FRAME_FILE_PATH_1 = "./img1_v2.bin";
const char* FRAME_FILE_PATH_2 = "./pre_image.bin";
const char* GetPreviewData() {
	FILE* file;
	preivew_change_flag++;
	preivew_change_flag = preivew_change_flag % 2;
	//    _sleep(2000);
	if (file = fopen(preivew_change_flag ? FRAME_FILE_PATH_1 : FRAME_FILE_PATH_2, "rb")) {
		unsigned char* buffer = malloc(sizeof(unsigned char) * BUFFER_SIZE);
		fread(buffer, sizeof(unsigned char), BUFFER_SIZE, file);
		fclose(file);
		return buffer;
	}

	return NULL;
}

const char* GetDeviceInfo(DeviceInfo infoType) {
	switch (infoType) {
		case MEAN_TEMPERATURE:
			return "28";
		case VERSION:
			return "6.6.06";
		case DEV_OUTPATH:
			return output_path;
	}
	return "";
}

#ifdef _WIN32
void StopDevice(){
    CloseHandle(e1);
    CloseHandle(e2);
}
#endif