#include "main.h"
#include "FreeRTOS.h"
#include "task.h"
#include "LCD_16X2.h"

// Variables Globales 
I2C_HandleTypeDef hi2c1;
TaskHandle_t TaskA_Handler;
TaskHandle_t TaskB_Handler;

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);
void vTaskA(void *pvParameters);
void vTaskB(void *pvParameters);

// compatibilité Wokwi
void setup() {}
void loop() {}

int main(void)
{
  HAL_Init();
  SystemClock_Config();
  
  MX_GPIO_Init();
  MX_I2C1_Init();

  //Initialisation du LCD
  lcd_init(&hi2c1);

  // Création des tâches A et B
  xTaskCreate(vTaskA, "TaskA", 128, NULL, 1, &TaskA_Handler);
  xTaskCreate(vTaskB, "TaskB", 128, NULL, 1, &TaskB_Handler);

  //Lancement du Scheduler
  vTaskStartScheduler();

  while (1);
}

//Tâche A: ecrit SYSTEM OK
void vTaskA(void *pvParameters) {
  for(;;) {
    lcd_set_cursor(0, 0);
    lcd_print("SYSTEM OK ");
    vTaskDelay(pdMS_TO_TICKS(10)); 
  }
}

//Tâche B : Écrit ALERTE !!
void vTaskB(void *pvParameters) {
  for(;;) {
    lcd_set_cursor(0, 0);
    lcd_print("ALERTE !! ");
    vTaskDelay(pdMS_TO_TICKS(10));
  }
}

// Configuration I2C1
static void MX_I2C1_Init(void)
{
  hi2c1.Instance = I2C1;
  hi2c1.Init.Timing = 0x00303D5B;
  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c1.Init.OwnAddress1 = 0;
  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c1.Init.OwnAddress2 = 0;
  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  HAL_I2C_Init(&hi2c1);
}

static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  __HAL_RCC_GPIOB_CLK_ENABLE();
  __HAL_RCC_I2C1_CLK_ENABLE();

  GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct.Alternate = GPIO_AF6_I2C1;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}

void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  __HAL_FLASH_SET_LATENCY(FLASH_LATENCY_0);
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI;
  RCC_OscInitStruct.LSIState = RCC_LSI_ON;
  HAL_RCC_OscConfig(&RCC_OscInitStruct);
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_LSI;
  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0);
}