#pragma once

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

typedef struct {
    uint16_t offset;
    char* ident;
} HeaderGlobalSym;

typedef struct {
    uint16_t id;
    char* ident;
} HeaderExternSym;

typedef struct {
    uint16_t id;
    uint16_t offset;
} HeaderExternRef;

typedef struct {
    uint16_t header_size;
    uint16_t global_syms_size;
    HeaderGlobalSym* global_syms;
    uint16_t extern_syms_size;
    HeaderExternSym* extern_syms;
    uint16_t extern_refs_size;
    HeaderExternRef* extern_refs;
    uint16_t program_size;
} Header;

void header_destroy(Header* header);
int header_read_from(Header* header, FILE* fp, const char* filename);
void header_print(const Header* header);