#!/bin/sh

CHAT_EXPORT="$1"

jq \
  -r '.messages | map(select(.media_type == "video_file")) | .[].file' \
  "$CHAT_EXPORT/result.json" | while read -r file; do

  FILE="$CHAT_EXPORT/$file"

  ffprobe \
    -v quiet \
    -print_format json \
    -select_streams a \
    -show_streams \
    "$FILE" > "$FILE.tmp.json"

  HAS_AUDIO="$(jq '.streams | length > 0' "$FILE.tmp.json")"

  if [ "$HAS_AUDIO" = "true" ]; then

    cp "$FILE" videos/$(basename "$FILE")

  fi

  rm "$FILE.tmp.json"

done