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// Author:  Paul Oliver <contact@pauloliver.dev>
// Project: Salis

// Lightweight UI for the Salis simulator with minimal output.
// Can be interrupted through OS signals.
// Ideal for running Salis in the background.

volatile bool g_running;
uint64_t      g_step_block;

void sig_handler(int signo) {
    switch (signo) {
    case SIGINT:
    case SIGTERM:
        printf("Signal received, will stop simulator soon...\n");
        g_running = false;
        break;
    }
}

void step_block() {
    clock_t beg = clock();
    salis_step(g_step_block - (g_steps % g_step_block));
    clock_t end = clock();

    if ((end - beg) < (CLOCKS_PER_SEC * 4)) {
        g_step_block <<= 1;
    }

    if ((end - beg) >= (CLOCKS_PER_SEC * 2) && g_step_block != 1) {
        g_step_block >>= 1;
    }

    printf("Simulator running on step '%#lx'\n", g_steps);
}

int main() {
    {% if args.command == "new" %}
    salis_init();
    {% elif args.command == "load" %}
    salis_load();
    {% endif %}

    g_running    = true;
    g_step_block = 1;

    signal(SIGINT,  sig_handler);
    signal(SIGTERM, sig_handler);

    while (g_running) {
        step_block();
    }

    printf("Saving simulation...\n");
    salis_save("{{ sim_path }}");
    salis_free();

    printf("Exiting salis...\n");
    return 0;
}