gin-context

#! /bin/bash

NAME_ICON='Gin \U1F378'
SCHEDULER_ENDPOINT='127.0.0.1:50051'
executor_port_start=50052

usage() {
    echo "USAGE: $0 start [num_of_executors]"
    echo "       $0 stop"
    exit 1
}

case "$1" in
'start')
    # Start Gin Scheduler
    cargo run --release --quiet --bin scheduler &

    while ! pgrep scheduler >/dev/null; do
        echo "Waiting for scheduler to start..."
        sleep 1
    done

    # Start Gin Executors
    excs=${2:-1}
    for ((i = 0; i < $excs; i++)); do
        (( port = executor_port_start + i))
        cargo run --release --quiet --bin executor -- 127.0.0.1:$port $SCHEDULER_ENDPOINT &
    done

    printf "Welcome to $NAME_ICON\n"
    printf "Gin Context available at http://$SCHEDULER_ENDPOINT\n"
    ;;
'stop')
    pkill executor && sleep 1 && pkill scheduler
    printf "$NAME_ICON has stopped.\n"
    ;;
*)
    echo "Wrong call!"
    usage
    exit 1
    ;;
esac