#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#include "core.h"

int virus1Address, virus2Address;

int setupViruses(long memory[8000]) {
    srand(time(NULL));
    int randAddress = rand() % 8000;
    int virusLines = 0;
    long instruction;

    virus1Address = randAddress;

    FILE* virusFile = fopen("redcode/virus1.mars", "r");

    if (virusFile) {
        fseek(virusFile, 0L, SEEK_SET);
        while (!feof(virusFile)) {
            instruction = 0;
            fscanf(virusFile, "%ld", &instruction);
            memory[(randAddress + virusLines) % 8000] = instruction;
            virusLines++;
        }
    } else {
        puts("Could not load Virus 1.");
        return 0;
    }

    fclose(virusFile);
    srand(rand());

    virusFile = fopen("redcode/virus2.mars", "r");

    if (virusFile) {
        long trash;
        while(!feof(virusFile)) {
            fscanf(virusFile, "%ld", &trash);
            virusLines++;
        }

        fseek(virusFile, 0L, SEEK_SET);

        randAddress = (randAddress + rand()) % (8000 - virusLines);
        virus2Address = randAddress;
        virusLines = 0;
        
        while (!feof(virusFile)) {
            instruction = 0;
            fscanf(virusFile, "%ld", &instruction);
            memory[(randAddress + virusLines) % 8000] = instruction;
            virusLines++;
        }
    } else {
        puts("Could not load Virus 1.");
        return 0;
    }

    fclose(virusFile);
}

void execInst(int address, long instruction) {

}