#! /bin/bash

#######################################################################################################
##                                                                                                   ##
##                                           WHAT IS THIS?                                           ##
##                                                                                                   ##
#######################################################################################################
## Bash script to help Parlameter front-end developers. It launches mongo, parlasite, parlanode,     ##
## has option to reload/reboot and/or stop. Download, edit config part then `chmod +x parladev.sh`.  ##
## Use like so: `./parladev.sh` to run, `./parladev.sh -r` to reload and `./parladev.sh -s` to stop. ##
#######################################################################################################

#########################
## CONFIG HAPPENS HERE ##
#########################

## global folders
DEV_ROOT="/home/muki/code/djnd"
DB_ROOT="/home/muki/db/parlanode"

## mongo passwords
MONGO_USERNAME="parladaddy"
MONGO_PASSWORD="parlapassword"

######################
## CONFIG ENDS HERE ##
######################

## flags
REBOOT="false"
STOP="false"

while getopts 'rs' flag; do
    case "${flag}" in
        r) REBOOT="true" && echo "$REBOOT $STOP" ;;
        s) STOP="true" && echo "$REBOOT $STOP" ;;
        *) echo "Unexpected option ${flag}. I don't know what to do. Valid options are -r for reboot and -s to stop." 1>&2 && exit 11 ;;
    esac
done
## if both flags are true, something will break. error now.
if [ $REBOOT == "true" ] && [ $STOP == "true" ] ; then
    echo "You can't reboot and stop at the same time." 1>&2
    exit 12
fi

## if not rebooting or stopping start everything
if [ $REBOOT == "false" ] && [ $STOP == "false" ] ; then
    mongod --dbpath $DB_ROOT --fork --logpath $DB_ROOT/parlanode.log

    cd "$DEV_ROOT/parlanode"
    NODE_ENV=development MONGO_USERNAME=$MONGO_USERNAME MONGO_PASSWORD=$MONGO_PASSWORD pm2 start run.js -n parlanode

    cd "$DEV_ROOT/parlasite"
    NODE_ENV=development MONGO_USERNAME=$MONGO_USERNAME MONGO_PASSWORD=$MONGO_PASSWORD pm2 start run.js -n parlasite
fi

## if rebooting or stopping kill pm2
if [ $REBOOT == "true" ] ; then
    cd "$DEV_ROOT/parlanode"
    pm2 restart parlanode

    cd "$DEV_ROOT/parlasite"
    pm2 restart parlasite
fi

if [ $STOP == "true" ] ; then
    pm2 kill
    mongod --shutdown
fi


## notes
## you want "" around the variable in a test because if it's empty you get a syntax error because of [ == "true ]
## however, since we define them in the beginning of the file, we'll ignore that for better readability