#!/bin/sh

set -eu

die() {
    echo >&2 "$@"
    exit 1
}

about() {
    die "usage: $0 [ start <port> | stop ]"
}

#shellcheck disable=SC1007
THIS_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
cd "${THIS_DIR}"

#shellcheck disable=SC1090
. "${THIS_DIR}/.environment.sh"

# you have not removed set -u above, have you?

[ -z "${LOG_DIR-}" ] && die "\$LOG_DIR must be defined."
[ -z "${PID_DIR-}" ] && die "\$PID_DIR must be defined."

if ! command -v python3 >/dev/null 2>&2; then
    die "The python3 executable is is missing. Please install it and try again."
fi

DAEMON_PID=${PID_DIR}/mock-http.pid

start_instance() {
    [ $# -lt 1 ] && about
    OUT_FILE="${LOG_DIR}/mock-http.out" \
        DAEMON_PID="${DAEMON_PID}" \
        "${TEST_DIR}/run-as-daemon" /usr/bin/env python3 -u "${THIS_DIR}/mock-http.py" "$1"
    ./lib/util/wait-for-port "$1"
#    echo "mock http started on port $1"
}

stop_instance() {
    if [ -f "${DAEMON_PID}" ]; then
        # terminate with extreme prejudice, all the application data will be thrown away anyway
        kill -9 "$(cat "${DAEMON_PID}")" > /dev/null 2>&1
        rm -f -- "${DAEMON_PID}"
    fi
}


# ---------------------------

[ $# -lt 1 ] && about

case "$1" in
    start)
        shift
        start_instance "$@"
        ;;
    stop)
        stop_instance
        ;;
    *)
        about
        ;;
esac;