//
// Created by steven on 11/14/2024.
//

#include <time.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>

#include "../libs/go_p2fa.h"
#include "images.h"
#include "../libs/e-Paper/EPD_2in13_V4.h"
#include "../libs/GUI/GUI_Paint.h"
#include "../libs/GUI/GUI_BMPfile.h"

void Handler(int sigNum) {
    printf("Caught signal %d\n", sigNum);
    EPD_2in13_V4_Init();
    EPD_2in13_V4_Clear();

    Debug("Goto Sleep...\r\n");
    EPD_2in13_V4_Sleep();

    DEV_Delay_ms(2000);//important, at least 2s
    Debug("close 5V, Module enters 0 power consumption ...\r\n");

    DEV_Module_Exit();
    exit(0);
}

int draw() {
    if (DEV_Module_Init() != 0) {
        return -1;
    }
    EPD_2in13_V4_Init();
    EPD_2in13_V4_Clear();

    UBYTE *BlackImage;
    UWORD ImageSize = ((EPD_2in13_V4_WIDTH % 8 == 0) ? (EPD_2in13_V4_WIDTH / 8) : (EPD_2in13_V4_WIDTH / 8 + 1)) * EPD_2in13_V4_HEIGHT;
    if ((BlackImage = (UBYTE *) malloc(ImageSize)) == NULL) {
        Debug("Failed to apply for black memory...\n");
        return -1;
    }

    while(1) {


        Paint_NewImage(BlackImage, EPD_2in13_V4_WIDTH, EPD_2in13_V4_HEIGHT, 90, WHITE);
        EPD_2in13_V4_Init();
        Paint_SelectImage(BlackImage);
        Paint_Clear(WHITE);

        const char *confName = "default";
        GoString confStr = {confName, strlen(confName)};
        const char *code = getCode(confStr);
        Debug("Code: %s\n", code);
        Paint_DrawString(5, 5, code, &Font48, WHITE, BLACK);

        Paint_DrawRectangle(10, 112, 240, 92, WHITE, DOT_PIXEL_1X1, DRAW_FILL_EMPTY);
        EPD_2in13_V4_Display_Base(BlackImage);

        Paint_NewImage(BlackImage, EPD_2in13_V4_WIDTH, EPD_2in13_V4_HEIGHT, 90, WHITE);
        Paint_SelectImage(BlackImage);

        clock_t startTime;
        clock_t endTime;
        int elapsedTime;
        int progBarCurrentIndex = 11;
        int progBarEndIndex;
        int lastI = 30 * 1000;
        for (int i = getTimeRemainingMS(30);; i = getTimeRemainingMS(30)) {
            if (i > lastI) break;
            startTime = clock();

            Debug("Time Left: %d\n", i);
            double percentLeft = ((double) i / (double) (30 * 1000));
            Debug("Percent Left: %.3f\n", percentLeft);
            progBarEndIndex = 228 - ((int) (228 * percentLeft));
            Debug("Progress Bar Start: %d\nDebug: Progress Bar End: %d\n", progBarCurrentIndex, progBarEndIndex);
            Paint_ClearWindows(progBarCurrentIndex, 111, progBarEndIndex, 93, WHITE);
            while (progBarCurrentIndex < progBarEndIndex) {
                Debug("Line: %d,111 - %d,93\n", progBarCurrentIndex, progBarEndIndex);
                Paint_DrawLine(progBarCurrentIndex, 111, progBarCurrentIndex, 93, BLACK, DOT_PIXEL_1X1,
                               LINE_STYLE_SOLID);
                ++progBarCurrentIndex;
            }
            EPD_2in13_V4_Display_Partial(BlackImage);
            endTime = clock();
            elapsedTime = (int) ((endTime - startTime) / CLOCKS_PER_SEC);
            Debug("Elapsed Time %d\n", elapsedTime);
            if (elapsedTime < 1000) {
                Debug("Delay for %dms\n", (1000 - (elapsedTime * 1000)));
                DEV_Delay_ms(1000 - (elapsedTime * 1000));
            }
            lastI = i;
        }
    }
}

int main() {
    signal(SIGINT, Handler);

    loadConfigs();

    draw();

    return 0;
}