#!/usr/bin/env bash
set -euo pipefail

MAX_WAIT_SEC=90
SLEEP_STEP=2
DARKICE_CMD="/usr/bin/darkice -c /home/pi/darkice.cfg"

log() { echo "[$(date '+%H:%M:%S')] $*" >&2; }

log "⏳ Waiting for ALSA card 0 (USB audio)..."

elapsed=0
while ! arecord -l 2>/dev/null | grep -q "^card 0:"; do
  if (( elapsed >= MAX_WAIT_SEC )); then
    log "💥 FATAL: No card 0 after ${MAX_WAIT_SEC}s"
    arecord -l || true
    exit 1
  fi
  sleep "${SLEEP_STEP}"
  elapsed=$((elapsed + SLEEP_STEP))
done

log "✅ Card 0 ready! Launching DarkIce."
exec ${DARKICE_CMD}