#!/bin/bash

# Test recording script using dsoundcard ALSA plugin
# This plugin bridges DEP audio without requiring hardware clocking

OUTPUT_DIR="./recordings"
DURATION=10  # seconds
TIMESTAMP=$(date +%Y%m%d_%H%M%S)
OUTPUT_FILE="${OUTPUT_DIR}/dsoundcard_${TIMESTAMP}.wav"

# Create output directory
mkdir -p "$OUTPUT_DIR"

echo "=========================================="
echo "DEP dsoundcard ALSA Plugin Test"
echo "=========================================="
echo "Recording from DEP via dsoundcard plugin"
echo "Duration: $DURATION seconds"
echo "Output file: $OUTPUT_FILE"
echo "=========================================="
echo ""

# Check if DEP is running
if ! pgrep -f "dep_manager" > /dev/null; then
    echo "ERROR: DEP is not running!"
    echo "Start DEP first: cd /home/caster/dante_beacon && sudo bash dep.sh start"
    exit 1
fi

# Check if dsoundcard is available
if ! aplay -L | grep -q "dsoundcard"; then
    echo "ERROR: dsoundcard ALSA plugin not found!"
    echo "Make sure dsoundcard.so is installed in /opt/dep/"
    echo "And ~/.asoundrc is configured correctly"
    exit 1
fi

echo "Starting recording..."
echo ""

# Record with larger buffer to avoid overruns
# -D: ALSA device
# -c: channels (6 for DEP RX)
# -f: format (S16_LE = 16-bit signed little endian)
# -r: sample rate (48000 Hz)
# -d: duration
# --buffer-size: larger buffer to prevent overruns
arecord -D dsoundcard -c 6 -f S16_LE -r 48000 -d $DURATION --buffer-size=4096 "$OUTPUT_FILE"

RECORD_EXIT=$?

echo ""
echo "=========================================="
if [ $RECORD_EXIT -eq 0 ]; then
    echo "Recording complete!"
else
    echo "Recording completed with warnings"
fi
echo "=========================================="

# Check if file was created
if [ -f "$OUTPUT_FILE" ]; then
    FILE_SIZE=$(ls -lh "$OUTPUT_FILE" | awk '{print $5}')
    echo "Output file: $OUTPUT_FILE"
    echo "File size: $FILE_SIZE"
    echo ""
    
    # Try to get audio info if sox is available
    if command -v sox &> /dev/null; then
        echo "Audio file info:"
        sox "$OUTPUT_FILE" -n stat 2>&1 | grep -E "Sample Rate|Channels|Duration|Length|Maximum amplitude|RMS"
    fi
    
    echo ""
    echo "To play the recording:"
    echo "  aplay $OUTPUT_FILE"
    echo ""
    echo "To split into individual channels:"
    echo "  for i in {1..6}; do"
    echo "    sox $OUTPUT_FILE ${OUTPUT_FILE%.wav}_ch\$i.wav remix \$i"
    echo "  done"
else
    echo "ERROR: Recording file was not created!"
fi

echo ""
echo "=========================================="
echo ""
echo "NOTE: The dsoundcard plugin provides direct access to DEP"
echo "audio buffers without requiring hardware clock synchronization."
echo "This is the recommended method for ALSA integration with DEP."
echo ""