#include <stdio.h>
#include <string.h>
#include <libcpuid.h>


int main() {
    struct cpu_raw_data_t raw;
    struct cpu_id_t data;
    double cpu_clock;

    // Get raw CPU data
    if (cpuid_get_raw_data(&raw) < 0) {
        fprintf(stderr, "Error getting raw CPU data: %s\n", cpuid_error());
        return 1;
    }

    // Decode data
    if (cpu_identify(&raw, &data) < 0) {
        fprintf(stderr, "Error identifying CPU: %s\n", cpuid_error());
        return 1;
    }

    // Get current clock frequency
    cpu_clock = cpu_clock_by_os();
    if (cpu_clock < 0) {
        fprintf(stderr, "Error retrieving clock frequency: %s\n", cpuid_error());
        return 1;
    }

    // Check if vendor and model are non-empty strings
    if (data.vendor_str == NULL || strlen(data.vendor_str) == 0) {
        fprintf(stderr, "Error: Vendor string is empty or NULL.\n");
        return 1;
    }

    if (data.brand_str == NULL || strlen(data.brand_str) == 0) {
        fprintf(stderr, "Error: Model string is empty or NULL.\n");
        return 1;
    }


    if (data.num_cores <= 0) {
        fprintf(stderr, "Error: Number of cores is not greater than 0.\n");
        return 1;
    }

    if (data.num_logical_cpus <= 0) {
        fprintf(stderr, "Error: Number of logical CPUs is not greater than 0.\n");
        return 1;
    }

    // Print basic CPU information
    printf("Vendor: %s\n", data.vendor_str);
    printf("Model: %s\n", data.brand_str);
    printf("Family: %d\n", data.family);
    printf("Model: %d\n", data.model);
    printf("Stepping: %d\n", data.stepping);
    printf("Current clock frequency: %.2f MHz\n", cpu_clock);
    printf("Cores: %d\n", data.num_cores);
    printf("Logical CPUs: %d\n", data.num_logical_cpus);

    return 0;
}