#!/bin/bash

set -eu

COIN_DIR=/opt/coin
NGINX_COIN_FILE=/etc/nginx/conf.d/coin.local.d/coin.conf

function use_git() {
    local COIN_GIT=$(realpath $1)
	if [ -f "${COIN_DIR}/manage.py" ] || [ -L "${COIN_DIR}/manage.py" ]; then
        cp ${COIN_DIR}/coin/settings_local.py ${COIN_DIR}/settings_local.py || true
		for subpath in $(ls ${COIN_GIT}/); do 
            rm -Rf ${COIN_DIR}/$subpath || true 
            ln -s ${COIN_GIT}/$subpath ${COIN_DIR}/$subpath
        done
        cp ${COIN_DIR}/settings_local.py ${COIN_DIR}/coin/settings_local.py
	    bash --init-file <(echo "cd ${COIN_DIR}; source venv/bin/activate; pip install -r requirements.txt; exit")
	fi
}

function restore() {
    # Restore db
    if [ -f $(pwd)/../dump.sql ]; then
		PGPASSWORD=$(grep -oP "'PASSWORD': '\K[^']+" ${COIN_DIR}/coin/settings_local.py) dropdb -Ucoin coin || true
		sudo su -c "createdb -O coin coin" - postgres
        PGPASSWORD=$(grep -oP "'PASSWORD': '\K[^']+" ${COIN_DIR}/coin/settings_local.py) psql -Ucoin coin < $(pwd)/../dump.sql
	fi

    # Restore settings
    if [ -f $(pwd)/dev_settings.py ]; then
        sed '/# START DEV SETTINGS/,$d' ${COIN_DIR}/coin/settings_local.py
        echo '# START DEV SETTINGS' >> ${COIN_DIR}/coin/settings_local.py
        cat $(pwd)/dev_settings.py >> ${COIN_DIR}/coin/settings_local.py
    fi
}

function exit_usage() {
	echo -e "usage: coin-dev [-g GIT_COIN_DIR] [-r] [-h]"
	echo -e "Run coin in development mode"
	echo -e ""
	echo -e "Options:"
	echo -e " -r Restore a db located in /opt/coin/dump.sql"
	echo -e " -g Replace coin with the git repository "
	echo -e " -h Display this help"
	exit 0
}

restore=false
while getopts "g:rh" opt; do
  case $opt in
    g) use_git $OPTARG ;;
    r) restore=true ;;
    h) exit_usage ;;
    \?) exit_usage ;;
  esac
done

if $restore; then
    restore
fi

if [ -f ${COIN_DIR}/manage.py ]; then
	sed -i "s@http://unix:${COIN_DIR}/sock@http://127.0.0.1:8000@" ${NGINX_COIN_FILE}
    service nginx reload
	service coin stop
	bash --init-file <(echo "cd ${COIN_DIR}; source venv/bin/activate; python manage.py migrate; python manage.py runserver 0.0.0.0:8000")
fi