DOWNLOADER downloader;

#ifdef LANG_RUS
	#define DL_WINDOW_HEADER "Менеджер загрузок"
	#define START_DOWNLOADING "Начать закачку"
	#define STOP_DOWNLOADING "Остановить"
	#define SHOW_IN_FOLDER "Показать в папке"
	#define OPEN_FILE_TEXT "Открыть файл"
	#define FILE_SAVED_AS "'Менеджер загрузок\nФайл сохранен как "
	#define KB_RECEIVED "Идет скачивание... %s получено"
#else
	#define DL_WINDOW_HEADER "Download Manager"
	#define START_DOWNLOADING "Start downloading"
	#define STOP_DOWNLOADING "Stop downloading"
	#define SHOW_IN_FOLDER "Show in folder"
	#define OPEN_FILE_TEXT "Open file"
	#define FILE_SAVED_AS "'Download manager\nFile saved as "
	#define KB_RECEIVED "Downloading... %s received"
#endif
char save_to[4096] = "/tmp0/1/Downloads";
 
#define CONX 15

proc_info DL_Form;
char downloader_edit[10000];
char filepath[4096];
edit_box ed = {NULL,57,20,0xffffff,0x94AECE,0xffffff,0xffffff,0x10000000,sizeof(downloader_edit)-2,#downloader_edit,0,ed_focus,19,19};
progress_bar pb = {0, CONX, 58, 350, 17, 0, 0, 100, 0xFFFfff, 0x74DA00, 0x9F9F9F};
//progress_bar pb = {0, 180, 55, 225, 12, 0, 0, 100, 0xFFFfff, 0x74DA00, 0x9F9F9F};
//progress_bar: value, left, top, width, height, style, min, max, back_color, progress_color, frame_color;

bool downloader_opened;
char downloader_stak[4096];
 
bool download_and_exit = false; 
 
void Downloader()  
{
	if (!dir_exists(#save_to)) CreateDir(#save_to);
	downloader_opened = true;
	SetEventMask(EVM_REDRAW + EVM_KEY + EVM_BUTTON + EVM_MOUSE + EVM_MOUSE_FILTER + EVM_STACK);

	sc.get();
	pb.frame_color = sc.work_dark;
 
	filepath[0] = NULL;
	
	downloader.Stop();
	if (downloader_edit[0]) StartDownloading(); else strcpy(#downloader_edit, "http://");
	ed.size = ed.pos = ed.shift = ed.shift_old = strlen(#downloader_edit);
 
	loop() switch(WaitEvent())
	{
		case evMouse:
			edit_box_mouse stdcall (#ed);
			break;

		case evButton:
			Key_Scan(GetButtonID());
			break;

		case evKey:
			GetKeys();
			edit_box_key stdcall(#ed);
			if (key_scancode==SCAN_CODE_ENTER) Key_Scan(301);
			break;

		case evReDraw:
			DefineAndDrawWindow(215, 100, 580, 130, 0x74, sc.work, DL_WINDOW_HEADER, 0);
			GetProcessInfo(#DL_Form, SelfInfo);
			if (DL_Form.status_window>2) break;
			if (DL_Form.height<120) MoveSize(OLD,OLD,OLD,120);
			if (DL_Form.width<280) MoveSize(OLD,OLD,280,OLD);
			DL_Draw_Window();
			break;
		   
		default:
			if (!downloader.MonitorProgress()) break;
			pb.max = downloader.httpd.content_length / 100;
			EDI = downloader.httpd.content_received/100;
			if (pb.value != EDI)
			{
				pb.value = EDI;
				progressbar_draw stdcall(#pb);
				DrawDownloading();
			}
			if (downloader.state == STATE_COMPLETED)
			{
				SaveDownloadedFile();
				if (download_and_exit) ExitProcess();
				StopDownloading();
				DL_Draw_Window();
				break;
			}          
	}
}
 
void Key_Scan(int id)
{
	if (id==001) { downloader_opened=false; StopDownloading(); ExitProcess(); }
	if (id==301) && (downloader.httpd.transfer <= 0) StartDownloading();
	if (id==302) StopDownloading();
	if (id==305) RunProgram("/sys/File managers/Eolite", #save_to);
	if (id==306) {
		SetCurDir(#save_to);
		RunProgram("/sys/@open", #filepath);
	}
}
 
void DL_Draw_Window()
{  
	int but_x = 0;
	int but_y = 58;
	DrawBar(0,0, DL_Form.cwidth, DL_Form.cheight, sc.work);
	DeleteButton(301);
	DeleteButton(302);
	DeleteButton(305);
	DeleteButton(306);
	if (downloader.state == STATE_NOT_STARTED) || (downloader.state == STATE_COMPLETED)
	{
		but_x = CONX + DrawStandartCaptButton(CONX, but_y, 301, START_DOWNLOADING);   
		if (filepath[0])
		{
			but_x += DrawStandartCaptButton(but_x, but_y, 305, SHOW_IN_FOLDER);
			DrawStandartCaptButton(but_x, but_y, 306, OPEN_FILE_TEXT);  
		}
	}
	if (downloader.state == STATE_IN_PROGRESS)
	{
		DrawStandartCaptButton(DL_Form.width - 190, but_y, 302, STOP_DOWNLOADING);
		DrawDownloading();
	}
	WriteText(CONX, ed.top + 4, 0x90, sc.work_text, "URL:");
    ed.width = DL_Form.cwidth - ed.left - CONX - 3;
	ed.offset=0;
	DrawEditBox(#ed);
}
 
void StartDownloading()
{
	StopDownloading();
	if (strncmp(#downloader_edit,"http://",7)!=0) {
		notify("'File address should start from http://' -E");
		return;
	}
	if (!downloader.Start(#downloader_edit)) {
		if (download_and_exit) ExitProcess();
		notify("'Error while starting download process.\nPlease, check entered path and internet connection.' -E");
		StopDownloading();
		return;
	}
	ed.blur_border_color = 0xCACACA;
	ed.flags = 100000000000b;
	pb.value = 0;
	DL_Draw_Window();
}

/*
struct TIME
{
	dword old;
	dword cur;
	dword gone;
} time = {0,0,0};

dword netdata_received;
dword speed;

void CalculateSpeed()
{
	time.cur = GetStartTime();

	if (time.old) {
		time.gone = time.cur - time.old;
		if (time.gone > 200) {
			speed = downloader.httpd.content_received - netdata_received / time.gone * 100;
			debugval("speed", speed);
			debugln(ConvertSizeToKb(speed) );
			time.old = time.cur;
			netdata_received = downloader.httpd.content_received;
		}
	}
	else time.old = time.cur;
}
*/
 
void DrawDownloading()
{
	char bytes_received[70];
	sprintf(#bytes_received, KB_RECEIVED, ConvertSizeToKb(downloader.httpd.content_received) );
	DrawBar(CONX, pb.top + 22, pb.width, 16, sc.work);
	WriteText(CONX, pb.top + 22, 0x90, sc.work_text, #bytes_received);
	//CalculateSpeed();
	progressbar_draw stdcall(#pb);
}
 
void StopDownloading()
{
	downloader.Stop();
	ed.blur_border_color = 0xFFFfff;
	ed.flags = 10b;
	DL_Draw_Window();
}

void SaveDownloadedFile()
{
	int i;
	char aux[2048];
	char notify_message[4296];

	// Clean all slashes at the end
	strcpy(#aux,  #downloader_edit);
	while (aux[strlen(#aux)-1] == '/') {
		aux[strlen(#aux)-1] = 0;
	}
	sprintf(#filepath, "%s/%s", #save_to, #aux+strrchr(#aux, '/'));
	
	for (i=0; i<strlen(#filepath); i++) if(filepath[i]==':')||(filepath[i]=='?')filepath[i]='-';

	if (CreateFile(downloader.httpd.content_received, downloader.bufpointer, #filepath)==0) {
		sprintf(#notify_message, "%s%s%s",FILE_SAVED_AS,#filepath,"' -Dt");
	} else {
		sprintf(#notify_message, "%s%s%s","'Download manager\nError! Can\96t save file as ",#filepath,"' -Et");
	}
	
	if (!download_and_exit) notify(#notify_message);
}