#!/bin/bash

if [[ "$#" != 1 ]]
then
    echo >&2 "usage:"
    echo >&2 "$0 install"
    echo >&2 "$0 uninstall"
    exit 1
fi

if [[ "$1" == "install" ]]
then
    INSTALL=true
elif [[ "$1" == "uninstall" ]]
then
    INSTALL=false
else
    echo >&2 "unknown argument : $1"
    exit 1
fi

cd -P "$(dirname "$(readlink -f "$0")" )"

if [[ "$PWD" != "$(printf %q "$PWD" )" ]]
then
    echo >&2 "WARNING: path seems unsafe: $PWD"
fi

SCRIPT_ROOT="$PWD"
cd ..
INFRA_ROOT="$PWD"

CRON_LINES=()

if [[ "$INSTALL" == true ]]
then
    while IFS="" read -u 3 -r MONITOR_SCRIPT_PATH
    do
	if [[ "$MONITOR_SCRIPT_PATH" != "$(printf %q "$MONITOR_SCRIPT_PATH" )" ]]
	then
	    echo >&2 "WARNING: path seems unsafe: $MONITOR_SCRIPT_PATH"
	fi

	CRON_LINES+=( "0 0 * * * $SCRIPT_ROOT/run_and_output_only_on_error.sh $INFRA_ROOT/$MONITOR_SCRIPT_PATH # monitoring_crontask" )

    done 3< <( find */ -iname "monitor_check_once.sh" )
fi

{
    crontab -l | fgrep -v "# monitoring_crontask"
    printf '%s\n' "${CRON_LINES[@]}"
} | crontab -