#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <sys/wait.h>

int main(void) {
    /* Integration test for the looper binary */
    printf("Integration test placeholder\n");
    // We need to:
    // 1. Start the looper binary (./looper)
    // 2. Connect a MIDI output (e.g., via ALSA) to its 'control' port
    // 3. Send note-on (0x90, 1, 127) → should set 'record'
    // 4. Send note-on again → 'looping'
    // 5. Send note-on again → 'paused'
    // 6. Send note-on again → 'looping' (toggle)
    // 7. Verify audio pass-through (open a connection and measure signal)
    // For now we just check the binary exists and can be launched.
    if (system("test -x ./looper") != 0) {
        fprintf(stderr, "FATAL: looper binary not found\n");
        return 1;
    }
    pid_t pid = fork();
    if (pid == 0) {
        execl("./looper", "looper", NULL);
        perror("execl");
        _exit(1);
    }
    sleep(2);  // give it time to register ports
    printf("Looper started (pid %d)\n", (int)pid);

    // send commands using helper script (requires external program)
    // For illustration:
    // system("jack_midi_send -c looper:control -m 'note on 1 100'");
    // sleep(1);
    // system("jack_midi_send -c looper:control -m 'note on 1 100'");
    // sleep(1);
    // etc.

    kill(pid, SIGTERM);
    int status;
    waitpid(pid, &status, 0);
    printf("Integration test completed (simulated PASS)\n");
    return 0;
}