#!/bin/bash

echo "Welcome to the Docker Installer:"
echo ""

echo "1. The installer will update all Repos"
apt update 

echo "2. The installer will install CURL and GIT"
apt install curl git -y

echo "3. The installer will install Docker and Docker Compose"
apt install docker docker-compose -y

echo "4. The installer will clone the Docker-Compose Repository"
HOME_DIR=/opt/odc
if [ -d $HOME_DIR/docker-compose ]
then
  cd /$HOME_DIR/docker-compose
  git add .
  git stash
  git pull
else
  mkdir /opt/odc && cd /opt/odc
  git clone https://git.h2-invent.com/datenschutzcenter/docker-compose.git
  cd docker-compose
fi

echo "5. The installer will setup all scripts, so you can docker-compose up"
echo ""
FILE=env.local
if [ -f "$FILE" ]; then
    source $FILE
else
    touch $FILE
    KEYCLOAK_PW=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
    ODC_DB_PW=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
    KEYCLOAK_ADMIN_PW=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
    OAUTH_KEYCLOAK_CLIENT_ID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

    echo "KEYCLOAK_PW=$KEYCLOAK_PW" >> $FILE
    echo "KEYCLOAK_ADMIN_PW=$KEYCLOAK_ADMIN_PW" >> $FILE
    echo "OAUTH_KEYCLOAK_CLIENT_ID=$OAUTH_KEYCLOAK_CLIENT_ID" >> $FILE
    echo "ODC_DB_PW=$ODC_DB_PW" >> $FILE
    source $FILE
fi

  HTTP_METHOD=${HTTP_METHOD:=http}
  read -p "Enter http/https for testing on local environment ALWAYS use http [$HTTP_METHOD]: " input
  HTTP_METHOD=${input:=$HTTP_METHOD}
  sed -i '/HTTP_METHOD/d' $FILE
  echo "HTTP_METHOD=$HTTP_METHOD" >> $FILE

  PUBLIC_URL=${PUBLIC_URL:=dev.domain.de}
  read -p "Enter the url you want to enter the open-datenschutzcenter without http://, https:// or ports [$PUBLIC_URL]: " input
  PUBLIC_URL=${input:=$PUBLIC_URL}
  sed -i '/PUBLIC_URL/d' $FILE
  echo "PUBLIC_URL=$PUBLIC_URL" >> $FILE


HOST_IP=$(ip a | grep -Eo 'inet (addr:)?([0-9]*\.){3}[0-9]*' | grep -Eo '([0-9]*\.){3}[0-9]*' | grep -v '127.0.0.1' | head -n 1)

echo ------------------------------------------------------------
echo --- 1. Build the Keycloak ----------------------------------
echo ------------------------------------------------------------
echo ""

sed -i "s|<clientsecret>|$OAUTH_KEYCLOAK_CLIENT_ID|g" keycloak/realm-export.json
sed -i "s|<clientUrl>|$HTTP_METHOD://$PUBLIC_URL|g" keycloak/realm-export.json

echo ------------------------------------------------------------
echo ------ 2. Build Mysql Init DB ------------------------------
echo ------------------------------------------------------------
echo ""

sed -i "s|<open-datenschutzcenter-pw>|$ODC_DB_PW|g" mysql-initdb/init-userdb.sql
sed -i "s|<keycloak-pw>|$KEYCLOAK_PW|g" mysql-initdb/init-userdb.sql

echo ------------------------------------------------------------
echo --------- 3. Build Docker Compose File ---------------------
echo ------------------------------------------------------------
echo ""

cp docker-compose.$HTTP_METHOD.yml docker-compose.yml

sed -i "s|<keycloakAdminPw>|$KEYCLOAK_ADMIN_PW|g" docker-compose.yml
sed -i "s|<keycloak-pw>|$KEYCLOAK_PW|g" docker-compose.yml
sed -i "s|<clientsecret>|$OAUTH_KEYCLOAK_CLIENT_ID|g" docker-compose.yml
sed -i "s|<clientUrl>|$PUBLIC_URL|g" docker-compose.yml
sed -i "s|<httpMethod>|$HTTP_METHOD|g" docker-compose.yml
sed -i "s|<odcMySqlPw>|$ODC_DB_PW|g" docker-compose.yml
sed -i "s|<hostIp>|$HOST_IP|g" docker-compose.yml

echo ------------------------------------------------------------
echo ------------ 4. Remove Setup Script ------------------------
echo ------------------------------------------------------------
echo ""

rm setup.sh

echo ""
echo ""
echo ------------------------------------------------------------
echo FINALY: Select and SPrepare tart Docker Compose ------------
echo ------------------------------------------------------------
echo ""
echo "DOCKER COMPOSE"
echo "run 'docker-compose up --detach' to start the containers"
echo ""
echo "IMPORTANT"
echo "1. Wait for at least 10 Minutes for the containers to be up and healthy"
echo "2. Backup ALL Volumes and most important the DB and secretStorage"