#!/usr/bin/env bash

# Define your audio devices
SYNTH_SRC="your_system_output.monitor"
MIC_SRC="your_microphone_input"

SESSION_NAME="live_session_$(date +%Y%m%d_%H%M%S)"

echo "--> Initializing synced audio + terminal recording..."

# 1. Start FFmpeg in the background silently
ffmpeg -y -f pulse -i "$SYNTH_SRC" -f pulse -i "$MIC_SRC" \
       -filter_complex "[0:a]volume=1.0[synth]; [1:a]volume=0.4[mic]; [synth][mic]amix=inputs=2:duration=longest[out]" \
       -map "[out]" -acodec libmp3lame -b:a 192k "${SESSION_NAME}.mp3" > /dev/null 2>&1 &
FFMPEG_PID=$!

# 2. Immediately launch asciinema in the foreground
# This keeps you in the active terminal environment
asciinema rec "${SESSION_NAME}.cast"

# 3. Once you exit the asciinema session, the script resumes here:
echo "--> Terminal session ended. Wrapping up audio..."

# Send a polite SIGTERM to FFmpeg so it flushes the MP3 buffer safely
kill -15 $FFMPEG_PID
wait $FFMPEG_PID

echo "--> Done! Saved files:"
echo "    ${SESSION_NAME}.cast (Terminal)"
echo "    ${SESSION_NAME}.mp3  (Audio Mix)"