#include <stdio.h>
#include <stdlib.h>
#include "types.h"
#include "tokenizer.h"
#include "interpreter.h"
#include "native_functions.h"

int main(int argc, char **argv) {
    if (argc < 2) {
        printf("Usage: rc <file.rc>\n");
        return 1;
    }

    FILE *f = fopen(argv[1], "rb");
    if (!f) {
        printf("Could not open file.\n");
        return 1;
    }

    src_code = malloc(MAX_SRC + 1);
    if (!src_code) {
        printf("Memory allocation failed.\n");
        fclose(f);
        return 1;
    }

    size_t n = fread(src_code, 1, MAX_SRC, f);
    if (n >= MAX_SRC) n = MAX_SRC - 1;
    src_code[n] = 0;
    fclose(f);

    register_native_functions();

    tokenize(src_code);
    scan_functions();

    int main_idx = find_func("main", 4);
    if (main_idx == -1 || main_idx >= func_cnt) {
        printf("No main function found.\n");
        return 1;
    }

    pc = funcs[main_idx].entry_point;

    if (sp + 2 >= MEM_SIZE) {
        printf("Stack overflow during initialization.\n");
        return 1;
    }
    memory[sp++] = 0;
    memory[sp++] = 0;

    ax = 0;
    statement();

    free(src_code);
    return 0;
}