#!/bin/bash

echo "####################################################################"
echo "# docker_mariadb_setup_script                                      #"
echo "# Dennis Buchhorn - bucde@b-eit.de                                 #"
echo "####################################################################"
echo "# WARNING: password is plain text input!                           #"
echo "#                                                                  #"
echo "# Config will be saved in 'config' file.                           #"
echo "# (everything in plain text, even the password)                    #"
#echo "#  #"
echo "####################################################################"
echo ""

DATE=$(date +'%y%m%d%H%M%S')

CONFIG_EXISTS="false"
USE_EXISTING_CONFIG=""
DELETE_CONFIG=""

MARIADB_PROJECT_NAME="mariadb_${DATE}"
MARIADB_PROJECT_NAME_SUFFIX=""
MARIADB_CONTAINER_NAME="${MARIADB_PROJECT_NAME}_db"
MARIADB_VERSION=""
MARIADB_HOST_IP_ADDRESS=""
MARIADB_HOST_PORT=""
MARIADB_ROOT_PASSWORD=""

read -p "Enter mariadb project name suffix (leave empty for none): " MARIADB_PROJECT_NAME_SUFFIX

if [ -n "$MARIADB_PROJECT_NAME_SUFFIX" ]; then
    MARIADB_PROJECT_NAME="${MARIADB_PROJECT_NAME}_${MARIADB_PROJECT_NAME_SUFFIX}"
    MARIADB_CONTAINER_NAME="${MARIADB_CONTAINER_NAME}_${MARIADB_PROJECT_NAME_SUFFIX}"
fi

rm -f .env
touch .env
echo "COMPOSE_PROJECT_NAME="$MARIADB_PROJECT_NAME >> .env
echo "MARIADB_CONTAINER_NAME="$MARIADB_CONTAINER_NAME >> .env

if [ -f "config" ]; then
    CONFIG_EXISTS="true"
    read -p "Config file 'config' already exists! Would you like to use this? (y/n)" USE_EXISTING_CONFIG
fi

if [ $CONFIG_EXISTS == "false" ] || [ $USE_EXISTING_CONFIG == "n" ]; then
    read -p "Enter mariadb version which should be used: " MARIADB_VERSION
    read -p "Enter host (vm) ip address on which mariadb should be accessible: " MARIADB_HOST_IP_ADDRESS
    read -p "Enter host (vm) port on which mariadb should be accessible: " MARIADB_HOST_PORT
    read -p "Enter root password for mariadb: " MARIADB_ROOT_PASSWORD

    rm -f config
    touch config
    echo "MARIADB_VERSION="$MARIADB_VERSION >> config
    echo "MARIADB_HOST_IP_ADDRESS="$MARIADB_HOST_IP_ADDRESS >> config
    echo "MARIADB_HOST_PORT="$MARIADB_HOST_PORT >> config
    echo "MARIADB_ROOT_PASSWORD="$MARIADB_ROOT_PASSWORD >> config

    echo "Config file 'config' created!"
else
    echo "Use existing config file 'config'!"

    while read line; do
        if [[ $line == *"MARIADB_ROOT_PASSWORD="* ]]; then
            MARIADB_ROOT_PASSWORD=$(echo $line | cut -c 23-)
        fi
    done < "config"
fi

cat "config" >> ".env"

read -p "Should the config file 'config' be deleted after creating the container? (y/n)" DELETE_CONFIG

docker-compose up -d

echo -n "Wait until mariadb is ready ..."

# wait two times, because mariadb restarts once after configuration
while ! docker exec $MARIADB_CONTAINER_NAME mysql --password=$MARIADB_ROOT_PASSWORD -e "SELECT 1" > /dev/null 2>&1; do
    echo -n "."
    sleep 1
done

echo -n "."
sleep 1
echo -n "."
sleep 1
echo -n "."
sleep 1
echo -n "."
sleep 1

while ! docker exec $MARIADB_CONTAINER_NAME mysql --password=$MARIADB_ROOT_PASSWORD -e "SELECT 1" > /dev/null 2>&1; do
    echo -n "."
    sleep 1
done

echo -e "\nMariadb is ready!"

if [ $DELETE_CONFIG == "y" ]; then
    rm -f config

    echo "Config file 'config' deleted!"
fi

rm -f .env

echo "Done!"