/* Copyright 2023 Dual Tachyon
 * https://github.com/DualTachyon
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *     Unless required by applicable law or agreed to in writing, software
 *     distributed under the License is distributed on an "AS IS" BASIS,
 *     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *     See the License for the specific language governing permissions and
 *     limitations under the License.
 */

#include <string.h>

#include "scheduler.h"
#include "app/app.h"
#include "app/dtmf.h"
#include "audio.h"
#include "bsp/dp32g030/gpio.h"
#include "bsp/dp32g030/syscon.h"
#include "board.h"
#include "driver/backlight.h"
#include "driver/bk4819.h"
#include "driver/gpio.h"
#include "driver/system.h"
#include "driver/systick.h"
#include "driver/uart.h"
#include "helper/battery.h"
#include "helper/boot.h"
#include "misc.h"
#include "radio.h"
#include "settings.h"
#include "ui/lock.h"
#include "ui/welcome.h"
#include "ui/menu.h"
#include "version.h"

#ifndef ARRAY_SIZE
	#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
#endif

void _putchar(char c)
{
	UART_Send((uint8_t *)&c, 1);
}

void Main(void)
{
	unsigned int i;

	// Enable clock gating of blocks we need
	SYSCON_DEV_CLK_GATE = 0
		| SYSCON_DEV_CLK_GATE_GPIOA_BITS_ENABLE
		| SYSCON_DEV_CLK_GATE_GPIOB_BITS_ENABLE
		| SYSCON_DEV_CLK_GATE_GPIOC_BITS_ENABLE
		| SYSCON_DEV_CLK_GATE_UART1_BITS_ENABLE
		| SYSCON_DEV_CLK_GATE_SPI0_BITS_ENABLE
		| SYSCON_DEV_CLK_GATE_SARADC_BITS_ENABLE
		| SYSCON_DEV_CLK_GATE_CRC_BITS_ENABLE
		| SYSCON_DEV_CLK_GATE_AES_BITS_ENABLE;

	SYSTICK_Init();
	BOARD_Init();
	UART_Init();
	
	UART_Send(UART_Version, strlen(UART_Version));

	// Not implementing authentic device checks

	memset(&gEeprom, 0, sizeof(gEeprom));

	memset(gDTMF_String, '-', sizeof(gDTMF_String));
	gDTMF_String[14] = 0;

	BK4819_Init();

	BOARD_ADC_GetBatteryInfo(&gBatteryCurrentVoltage, &gBatteryCurrent);

	BOARD_EEPROM_Init();

	BOARD_EEPROM_LoadMoreSettings();

	RADIO_ConfigureChannel(0, 2);
	RADIO_ConfigureChannel(1, 2);

	RADIO_SelectVfos();

	RADIO_SetupRegisters(true);

	for (i = 0; i < ARRAY_SIZE(gBatteryVoltages); i++)
		BOARD_ADC_GetBatteryInfo(&gBatteryVoltages[i], &gBatteryCurrent);
	
	BATTERY_GetReadings(false);

	gMenuListCount = 0;
	
	if (!gChargingWithTypeC && !gBatteryDisplayLevel)
	{
		FUNCTION_Select(FUNCTION_POWER_SAVE);

		if (gEeprom.BACKLIGHT < 5)
			GPIO_ClearBit(&GPIOB->DATA, GPIOB_PIN_BACKLIGHT);	// turn the backlight OFF
		else
			GPIO_SetBit(&GPIOB->DATA, GPIOB_PIN_BACKLIGHT);  	// turn the backlight ON

		gReducedService = true;
	}
	else
	{
		BOOT_Mode_t  BootMode;

		// count the number of menu list items
		while (MenuList[gMenuListCount][0] != 0)
			gMenuListCount++;
		gMenuListCount -= 6;

		UI_DisplayWelcome();
		BACKLIGHT_TurnOn();

		if (gEeprom.POWER_ON_DISPLAY_MODE != POWER_ON_DISPLAY_MODE_NONE)
		{	// 2.55 second boot-up screen
			while (boot_counter < 255)
			{
				#ifdef ENABLE_BOOT_BEEPS
					if ((boot_counter % 25) == 0)
						AUDIO_PlayBeep(BEEP_440HZ_40MS_OPTIONAL);
				#endif
			}
		}
		
		BootMode = BOOT_GetMode();

		if (gEeprom.POWER_ON_PASSWORD < 1000000)
		{
			bIsInLockScreen = true;
			UI_DisplayLock();
			bIsInLockScreen = false;
		}

		BOOT_ProcessMode(BootMode);

		GPIO_ClearBit(&GPIOA->DATA, GPIOA_PIN_VOICE_0);

		gUpdateStatus = true;

		#ifdef ENABLE_VOICE
		{
			uint8_t Channel;
			
			AUDIO_SetVoiceID(0, VOICE_ID_WELCOME);
		
			Channel = gEeprom.ScreenChannel[gEeprom.TX_CHANNEL];
			if (IS_MR_CHANNEL(Channel))
			{
				AUDIO_SetVoiceID(1, VOICE_ID_CHANNEL_MODE);
				AUDIO_SetDigitVoice(2, Channel + 1);
			}
			else
			if (IS_FREQ_CHANNEL(Channel))
				AUDIO_SetVoiceID(1, VOICE_ID_FREQUENCY_MODE);

			AUDIO_PlaySingleVoice(0);
		}
		#endif

		#ifdef ENABLE_NOAA
			RADIO_ConfigureNOAA();
		#endif
	}

	while (1)
	{
		APP_Update();

		if (gNextTimeslice)
		{
			APP_TimeSlice10ms();
			gNextTimeslice = false;
		}

		if (gNextTimeslice500ms)
		{
			APP_TimeSlice500ms();
			gNextTimeslice500ms = false;
		}
	}
}