#!/usr/bin/env bash

# Enable ADB over TCP (run once usually)
adb tcpip 5555
sleep 1
adb connect 10.0.0.30:5555 || { echo "Connection failed - check IP/Wi-Fi"; exit 1; }

read -p "Disconnect USB now if desired, then press Enter..."

set -e
trap 'kill 0' EXIT INT TERM

stream_play() {
    ffplay \
        -fflags nobuffer+discardcorrupt+flush_packets \
        -flags low_delay \
        -framedrop \
        -probesize 32 \
        -analyzeduration 0 \
        -sync ext \
        -vf "setpts=PTS-STARTPTS" \
        -
}

# Optional audio (low buffer, background)
# scrcpy --no-video --audio-buffer=80 --audio-bit-rate=128K &

echo "Starting low-latency Quest mirror (Wi-Fi). Ctrl+C to stop."
echo "Expect 150–500 ms latency depending on network."

while true; do
    echo "[$(date '+%H:%M:%S')] (Re)starting screenrecord segment..."

    adb exec-out screenrecord \
        --bit-rate=8M \
        --output-format=h264 \
        --size 1280x720 \
        --time-limit 120 \
        - | stream_play

    # Small delay to let ffplay drain & avoid rapid respawn spam on error
    sleep 0.5
done