/*
 * Copyright (c) 2026, Apollo Telephone Laboratories.
 * Provided under the BSD-3 clause.
 */

#include <atas/state.h>
#include <stdlib.h>
#include <errno.h>
#include <assert.h>

int
atas_state_init(const char *in_file, struct atas_state *state)
{
    if (in_file == NULL || state == NULL) {
        errno = EINVAL;
        return -1;
    }

    state->in_file = fopen(in_file, "r");
    if (state->in_file == NULL) {
        return -1;
    }

    return 0;
}

void
atas_state_destroy(struct atas_state *state)
{
    if (state == NULL) {
        return;
    }

    fclose(state->in_file);
    state->in_file = NULL;
}

void
atas_fatal(struct atas_state *state)
{
    assert(state != NULL && "state cannot be NULL\n");
    atas_state_destroy(state);
    exit(1);
}