#!/bin/bash

# PHP + Nginx + SQL, Docker Local Test Server Setup/Management File
# Based on nginx docker because I don't know how to use docker compose .d
# TODO Make docker compose file for running components under different dockers

CONTAINER_PREFIX="YURTDLE"    # nginx docker name prefix
MOUNT_PATH="/source"          # binded mount path in nginx docker
SCRIPT_NAME="dockerserver.sh" # name of the *this* file
SCRIPT_DIR="Yurtdle"          # containing directory of the *this* file
DEBUG="FALSE"                 # debug mode
BUILD_DIR="."                 # build results of local source code (insert a dot (.) if you do not need to build your application)
DATABASE_TYPE="postgresql"    # database type, either mysql or postgresql
MAIN_NAME="yurtdle"           # main program name
PORT1="8000"                  # TODO what is the difference between 8000 and 80
PORT2="80"

### REMOTE RELEASE ###
LATEST_RELEASE="-"
FILE_NAME="$MAIN_NAME-$LATEST_RELEASE.zip"
DOWNLOAD_LINK=https://git.aliberksandikci.com.tr/ifl/$MAIN_NAME/releases/download/$LATEST_RELEASE/$FILE_NAME
WEB_ROOT_DIR="/usr/share/nginx/html/"

############################
############################

# COLORS
_RED='\033[0;31m'
_NC='\033[0m \e[0m' # No Color, No Effect

HELP="""
Usage:
  dock [command] [subcommand]

COMMANDS:
    ${_RED}ini:${_NC}         initialize dock command
    install:    install $MAIN_NAME
      local:    get from local /source/
      remote:   get from git service
    reconf :    reconfigure configs
    debug:      change application debug status [ON / OFF]
    restart:    restart services (nginx, $DATABASE_TYPE, php-fpm)
    update:     update source files with new build on /source/
    status:     see current webserver status
    help:       see this help text
    root:       cd to web root folder     

BUNDLE COMMANDS:
    complete-restart: update + reconf + restart + root    
"""

NGINX_CONFIG_FILE="""
server {
    listen $PORT2;
    server_name localhost:$PORT1;

    location / {
        alias $WEB_ROOT_DIR;
        #root $WEB_ROOT_DIR;
        index index.php;

        # Common parameter to increase upload size limit in conjunction with dedicated php-fpm file
        client_max_body_size 50M;

        try_files \$uri \$uri/ index.php;
        location ~ [^/]\.php(/|\$) {
            fastcgi_split_path_info ^(.+?\.php)(/.*)\$;
            fastcgi_pass unix:/var/run/php/php8.2-fpm-$MAIN_NAME.sock;

            fastcgi_index index.php;
            include fastcgi_params;
            fastcgi_param REMOTE_USER \$remote_user;
            fastcgi_param PATH_INFO \$fastcgi_path_info;
            fastcgi_param SCRIPT_FILENAME \$request_filename;
        }
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   $WEB_ROOT_DIR;
    }
}
"""

PHP_FPM_CONFIG_FILE="""
[$MAIN_NAME]

user = $MAIN_NAME
group = $MAIN_NAME

chdir = /usr/share/nginx/html

listen = /var/run/php/php8.2-fpm-$MAIN_NAME.sock
listen.owner = nginx
listen.group = nginx
listen.mode = 0660

pm = ondemand
pm.max_children = 8
pm.max_requests = 500
request_terminate_timeout = 1d


pm.process_idle_timeout = 10s

; Additional php.ini defines, specific to this pool of workers.

php_admin_value[upload_max_filesize] = 50M
php_admin_value[post_max_size] = 50M
"""

_exit() {
  echo
  echo
  echo -e "${_RED}exiting...${_NC}"
  exit
}

_status() {
  set +x
  echo
  echo
  echo "----------------------------------"
  echo -e "${_RED}SYSTEM STATUS HEAD${_NC}"
  echo "----------------------------------"
  service nginx status
  service mariadb status
  service php8.2-fpm status
  echo "----------------------------------"
  echo -e "${_RED}SYSTEM STATUS HEAD${_NC}"
  echo "----------------------------------"
  echo
  echo
  set -x
}

if [[ $# -eq 0 ]]; then
  if [[ $(pwd) != *$SCRIPT_DIR ]]; then
    echo "PLEASE CHANGE DIRECTORY TO \`$SCRIPT_DIR/\` BEFORE STARTING SCRIPT"
    exit
  fi
  # TODO silmeden önce onay iste!
  # TODO extra docker oluşturma ve istenilen docker'a attach

  echo -e "${_RED}CONTAINER WILL BE REMOVED !!!${_NC} (10)"
  sleep 10
  docker stop $CONTAINER_PREFIX
  docker rm $CONTAINER_PREFIX
  echo "removed"

  docker run -it -d --name "$CONTAINER_PREFIX" --mount type=bind,source=".",target=/source/,readonly --publish $PORT1:$PORT2 nginx bash
  echo -e "RUN SCRIPT: \`${_RED}bash $MOUNT_PATH/$SCRIPT_NAME docker ini${_NC}\`"
  docker attach $CONTAINER_PREFIX --detach-keys="ctrl-k"
  _exit

elif [[ $1 == "attach" ]]; then
  if [ -n "$(docker ps -f "name=$CONTAINER_PREFIX" -f "status=running" -q)" ]; then
    echo "the container is already running!"
  else
    docker start $CONTAINER_PREFIX
  fi

  docker attach $CONTAINER_PREFIX --detach-keys="ctrl-k"

elif [[ $1 == "docker" ]]; then
  set -x

  if [[ $2 == "ini" ]]; then
    echo "alias dock=\"bash /source/$SCRIPT_NAME docker\"" >>/root/.bashrc
    echo "alias root=\"cd $WEB_ROOT_DIR\"" >>/root/.bashrc
    sleep 1
    exec bash

  elif [[ $2 == "debug" ]]; then
    case "$3" in
    ["oO"]["nN"] | ["tT"]["rR"]["uU"]["eE"] | 1) sed -i "s/\(DEBUG_MODE *    = *\).*/\1TRUE;/" "$WEB_ROOT_DIR/config.php" ;;
    ["oO"]["fF"]["fF"] | ["fF"]["aA"]["lL"]["sS"]["eE"] | 0) sed -i "s/\(DEBUG_MODE *    = *\).*/\1FALSE;/" "$WEB_ROOT_DIR/config.php" ;;
    *) echo -e "$_RED please input ON or OFF $_NC" ;;
    esac

  elif [[ $2 == "restart" ]]; then
    service mariadb restart
    sleep 3
    service php8.2-fpm restart
    sleep 3
    service nginx restart

    _status

  elif [[ $2 == "reconf" ]]; then

    echo -e "$CONFIG_FILE_CONTENT" >"$WEB_ROOT_DIR/config.php"
    echo -e "$NGINX_CONFIG_FILE" >"/etc/nginx/conf.d/default.conf"
    echo -e "$PHP_FPM_CONFIG_FILE" >"/etc/php/8.2/fpm/pool.d/$MAIN_NAME.conf"
    echo RECONFIGURED
    echo
    _exit
  elif [[ $2 == "complete-restart" ]]; then
    echo "updating sources!"
    rsync -a --progress /source/build/ $WEB_ROOT_DIR --exclude config.php --exclude storage

    sleep 1

    echo -e "$CONFIG_FILE_CONTENT" >"$WEB_ROOT_DIR/config.php"
    echo -e "$NGINX_CONFIG_FILE" >"/etc/nginx/conf.d/default.conf"
    echo -e "$PHP_FPM_CONFIG_FILE" >"/etc/php/8.2/fpm/pool.d/$MAIN_NAME.conf"
    echo RECONFIGURED
    echo

    service mariadb restart
    sleep 3
    service php8.2-fpm restart
    sleep 3
    service nginx restart

    _status

  elif [[ $2 == "update" ]]; then
    echo "updating sources!"
    rsync -a --progress /source/build/ $WEB_ROOT_DIR --exclude config.php --exclude storage
  elif [[ $2 == "status" ]]; then
    _status

  elif [[ $2 == "install" ]]; then
    if [[ $# -eq 2 || ! ($3 == "local" || $3 == "remote") ]]; then
      echo -e "use $_RED dock install local $NC or $_RED dock install remote"
      _exit
    fi
    sleep 1
    apt update
    apt install nano exa tree wget unzip less rsync -y
    rm -rf $WEB_ROOT_DIR
    mkdir -p $WEB_ROOT_DIR
    cd $WEB_ROOT_DIR || exit
    if [[ $3 == "local" ]]; then
      cp -r /source/$BUILD_DIR/* $WEB_ROOT_DIR/
    elif [[ $3 == "remote" ]]; then
      wget "$DOWNLOAD_LINK"
      sleep 3
      unzip $FILE_NAME
      mv $FILE_NAME ../

    else
      echo -e "${_RED}use docker local or docker remote${_NC}"
    fi

    ### CONFIGURATIONS ###
    apt install php php-fpm -y
    if [[ $DATABASE_TYPE == "mysql" ]]; then
      apt install mariadb-server php-mysql -y
      service mariadb start
      mysql -u root -e "create database $MAIN_NAME"
      mysql -u root -e "set password for root@localhost = password('root');"
    elif [[ $DATABASE_TYPE == "postgresql" ]]; then
      apt install postgresql php-pgsql -y
    fi

    echo -e "$CONFIG_FILE_CONTENT" >"$WEB_ROOT_DIR/config.php"
    echo -e "$NGINX_CONFIG_FILE" >"/etc/nginx/conf.d/default.conf"
    echo -e "$PHP_FPM_CONFIG_FILE" >"/etc/php/8.2/fpm/pool.d/$MAIN_NAME.conf"
    groupadd $MAIN_NAME
    useradd -g $MAIN_NAME $MAIN_NAME
    cd $WEB_ROOT_DIR || exit
    chown $MAIN_NAME:nginx -R .
    chmod 770 storage

    service php8.2-fpm start
    service nginx start
    service nginx status
    service nginx restart
    echo -e "${_RED}DONE! - OPEN localhost:$PORT1 TO TEST${_NC}"
  elif [[ $2 == "help" ]]; then
    echo -e "$HELP!"
  else
    echo -e "$_RED ! COMMAND NOT FOUND ! $_NC"
    echo
    echo -e "$HELP"
  fi

else
  echo -e "$_RED ! COMMAND NOT FOUND ! $_NC"

fi