#include <stdlib.h>
#include <stdio.h>
#include <inttypes.h>
#include <stdint.h>

#include "colors.h"

#define BLOCK_SIZE 8


int main(int argc, char* argv[]) {
  if (argc < 2) {
    printf("Usage: %s <file>\n", argv[0]);
    return 1;
  }

  FILE* fp = fopen(argv[1], "rb");

  uint8_t buffer[BLOCK_SIZE];
  int ok = fread(buffer, sizeof(uint8_t)*2, 1, fp);

  printf("Dernier cours du semestre précédent: %u.%u\n", buffer[0], buffer[1]);

  if (!ok) {
    fclose(fp);
    return 0;
  }

  while (fread(buffer, sizeof(uint8_t)*8, 1, fp)) {
    printf("\nLe " BLUE "%u/%u/%u" RESET ":\n", buffer[0], buffer[1], buffer[2]);

    printf("Prix d'ouverture: %u.%u\n", buffer[5], buffer[6]);
    printf("Prix de clôture: %u.%u\n", buffer[3], buffer[4]);


    if (buffer[7]) {
      if (buffer[7] == 1) {
        fread(buffer, sizeof(uint8_t)*2, 1, fp);
        printf("Variation: " BOLD GREEN "+%d.%u%%" RESET "\n", buffer[0], buffer[1]);
      } else if (buffer[7] == 2) {
        fread(buffer, sizeof(uint8_t)*2, 1, fp);
        printf("Variation: " BOLD RED "-%d.%u%%" RESET "\n", buffer[0], buffer[1]);
      } else {
        printf("Signe de variation inconnu (%d)\n", buffer[7]);
        return 1;
      }
    }

    fread(buffer, sizeof(uint8_t)*4, 1, fp);

    printf("Prix maximum: %u.%u\n", buffer[0], buffer[1]);
    printf("Prix minimum: %u.%u\n", buffer[2], buffer[3]);
  }
}