lab 13 bin5

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <time.h>
#define MAX 1000
#define IDS_NR 3
int ids[IDS_NR] = {1, 2, 3};

typedef struct {
  uint16_t year;
  uint8_t month, day, idx;
  int16_t val;
} SensorReg;

int randBetween(int low, int high) {
  return (rand() % (high - low + 1)) + low;
}

FILE *safeOpenFile(const char *const path, const char *const mode) {
    FILE *file = NULL;
    file = fopen(path, mode);
    if (file == NULL) {
        perror("opening error!");
        exit(EXIT_FAILURE);
    }
    return file;
}

void safeCloseFile(FILE *file) {
    if (fclose(file) == EOF) {
        perror(NULL);
    }
}

void printSensorReg(const SensorReg *const sr) {
  printf("%hu %hhu %hhu %hhu %hd\n", sr->year, sr->month, sr->day, sr->idx, sr->val);
}

void genTest() {
  SensorReg sr;
  FILE *f = safeOpenFile("data.bin", "wb");
  //defect
  for (int i = 0; i < 10; i++) {
    sr.year = randBetween(1990, 2023);
    sr.month = randBetween(1, 12);
    sr.day = randBetween(1, 30);
    sr.idx = ids[0];
    sr.val = randBetween(MAX + 1, MAX * 10);
    if (rand() & 1) {
      //sr.val *= -1;
    }
    fwrite(&sr, sizeof(sr), 1, f);
    //printSensorReg(&sr);
  }
  //probleme
  for (int i = 0; i < 10; i++) {
    sr.year = randBetween(1990, 2023);
    sr.month = randBetween(1, 12);
    sr.day = randBetween(1, 30);
    sr.idx = ids[1];
    if (i & 1) sr.val = randBetween(MAX + 1, MAX * 10);
    else sr.val = randBetween(0, MAX);
    if (rand() & 1) {
      sr.val *= -1;
    }
    fwrite(&sr, sizeof(sr), 1, f);
    //printSensorReg(&sr);
  }
  //ok
  for (int i = 0; i < 10; i++) {
    sr.year = randBetween(1990, 2023);
    sr.month = randBetween(1, 12);
    sr.day = randBetween(1, 30);
    sr.idx = ids[2];
    sr.val = randBetween(0, MAX);
    if (rand() & 1) {
      sr.val *= -1;
    }
    fwrite(&sr, sizeof(sr), 1, f);
    //printSensorReg(&sr);
  }
  safeCloseFile(f);
}

int checkOk(uint8_t idx) {
  SensorReg sr;
  FILE *f = safeOpenFile("data.bin", "rb");
  while (fread(&sr, sizeof(sr), 1, f) == 1) {
    if (sr.idx == idx) {
      //printf("%d", sr.val);
      if (-MAX > sr.val || sr.val > MAX) {
    return 0;
      }
    }
  }
  safeCloseFile(f);
  return 1;
}

int checkBroke(uint8_t idx) {
  SensorReg sr;
  FILE *f = safeOpenFile("data.bin", "rb");
  while (fread(&sr, sizeof(sr), 1, f) == 1) {
    if (sr.idx == idx) {
      if (-MAX <= sr.val && sr.val <= MAX) {
    return 0;
      }
    }
  }
  safeCloseFile(f);
  return 1;
}

void solve() {
  int sum = 0;
  for (int i = 0; i < 3; i++) {
    if (checkOk(ids[i])) {
      printf("good sensor: %d\n", ids[i]);
      sum += i;
      break;
    }
  }
  for (int i = 0; i < 3; i++) {
    if (checkBroke(ids[i])) {
      printf("bad sensor: %d\n", ids[i]);
      sum -= i;
      break;
    }
  }
  printf("broke sensor: %d\n", ids[IDS_NR - sum]);
}

void solve2() {
  uint16_t year;
  uint8_t month;
  scanf("%hu %hhu", &year, &month);
  FILE *f = safeOpenFile("data.bin", "rb");
  SensorReg sr;
  while (fread(&sr, sizeof(sr), 1, f) == 1) {
    if (sr.year == year && sr.month == month) {
      printSensorReg(&sr);
    }
  }
  safeCloseFile(f);
}

int main(void) {
  srand(time(NULL));
  genTest();
  solve();
  solve2();
  return 0;
}