I have butchered together a couple of things, this should take a list of sequences or everything with a name matching the pattern put it in a random list and then play through them if a button is pressed. Should only play if nothing is playing or if the Background playlist is playing.
If needed I can go through and neaten it all up but hey it seems to work.
edit: i just realised you wanted this script to play the background playlist again after. I start work in 5mins but that should be simple. I use another script to check if nothing is playing and then play the background playlist automatically which I find more useful.
If needed I can go through and neaten it all up but hey it seems to work.
edit: i just realised you wanted this script to play the background playlist again after. I start work in 5mins but that should be simple. I use another script to check if nothing is playing and then play the background playlist automatically which I find more useful.
Code:
#!/bin/bash
################################################################
Play random from list only if idle or playing background
################################################################
# Get our current status
STATUS=$(fpp -s | cut -d',' -f2)
PLAYLIST=$(fpp -s | cut -d',' -f4)
# Check that we got something meaningful
if [ -z "${STATUS}" ]; then
echo "Error with status value" >&2
exit 1
fi
shopt -s nullglob
cd ${MEDIADIR}/sequences
# The only configuration expected by the user is to set the
# SEQUENCES variable here at the top of the script. Here are
# examples on ways to set that variable:
# File glob to include all sequences
#SEQUENCES=(*)
# File glob to include Donation Box effects sequences
#SEQUENCES=(DonationEffect_*)
# Specific sequences to include, including one with a space in the name
# NOTE: You must include the .fseq file extension since this is a list
# of file names.
SEQUENCES=("Its Beginning to Look a Lot like Christmas.fseq" "Christmas Every Day-ShowStopper.fseq")
database=$(dirname $(mktemp -u))/button1sequence_db.txt
check_sequence_and_create_database()
{
# Check if the database file doesn't exist (reboot, or first-run) or if
# the database only has 1 (or somehow 0) entries. If so, we will then
# (re)create it ensuring that if we have a song queued, we don't use the
# next queued entry as the first in the new set of data, thus avoiding
# duplicate plays in a row.
if [ ! -e ${database} ] || [ $(cat ${database} | wc -l) -lt 2 ]; then
TEMP=$(mktemp)
TNEXT=""
# Handle the case where we don't have a variable passed in. For this we
# will blindly create the list. We also handle the case of less sequences
# than 2 because if we have 0 or 1 we will get stuck in the while loop
# below forever.
if [ -z "$1" ] || [ $(ls -1 "${SEQUENCES[@]}" | wc -l) -lt 2 ]; then
(ls -1 "${SEQUENCES[@]}") | shuf > ${TEMP}
# Handle the case where we have more than 1 sequence and need to re-queued
# random data ensuring the first of the new entries is not the next sequence
# so we don't play the same sequence twice.
else
# Loop through until the first song of the new random set is not the
# same as the next song queued.
while [ -z "${TNEXT}" ] || [ "x${TNEXT}" == "x$1" ]; do
(ls -1 "${SEQUENCES[@]}") | shuf > ${TEMP}
TNEXT="$(head -n 1 ${TEMP})"
done
fi
# Now that we've populated our temp file with the new random set, add it to
# our existing database and remove the temporary file.
cat ${TEMP} >> ${database}
rm -f ${TEMP}
fi
}
# Run this once at the beginning of the world in case this is the first time we
# are running this script. In that case we will populate the database the first
# time.
check_sequence_and_create_database
# Get our next sequence as the first in our database
next_sequence="$(head -n 1 ${database})"
# Remove the first line ("Take one down, pass it around...")
printf '%s\n' "$(sed '1d' ${database})" > ${database}
# Run the randomization again. We run it now so that when there is only one
# entry left in the file we queue up the new set with a different SEQUENCES
# than the last in our current set to avoid repeats.
check_sequence_and_create_database "$(head -n 1 ${database})"
# Check that we got something meaningful
if [ -z "${STATUS}" ]; then
echo "Error with status value" >&2
exit 1
fi
# Act on the current status
case ${STATUS} in
# IDLE
0)
fpp -P "${next_sequence}"
;;
# PLAYING
1)
if [[ "${PLAYLIST}" == "Background" ]]; then
echo "BackgroundPlaying" >&2
fpp -P "${next_sequence}"
fi
;;
# STOPPING GRACEFULLY
2|*)
# Do nothing for stopping gracefully for now, or unknown
;;
esac
