#!/bin/sh
# Startup nitter with guest accounts

GUEST_ACC_FOLDER=/guest_accs

__cleanup() {
    kill -s TERM "$NITTER_PID"
    [ -n "$LOCKFILE_PID" ] && kill "$LOCKFILE_PID"
    lockfile-remove "$GUEST_ACC_FILE"
    echo "unlocked \"$GUEST_ACC_FILE\""

    # Cleanup done, we can now wait for nitter. We might get killed in the
    # process :)
    wait "$NITTER_PID"
}

for accounts in $GUEST_ACC_FOLDER/*.jsonl; do
    if lockfile-create -r 0 "$accounts"; then
        GUEST_ACC_FILE="$accounts"
        break
    fi
done

if [ -z "$GUEST_ACC_FILE" ]; then
    echo "No guest accounts available! Exiting..."
    exit 1
fi

echo "Taking \"$GUEST_ACC_FILE\""

trap __cleanup EXIT TERM INT

lockfile-touch "$GUEST_ACC_FILE" &
LOCKFILE_PID="$!"

cp "$GUEST_ACC_FILE" ./guest_accounts.jsonl

./nitter &
NITTER_PID="$!"

# this will always terminate in the docker grace period on SIGTERM
wait "$NITTER_PID"