#!/bin/bash
shopt -s extglob  # sets extended pattern matching options in the bash shell

# Exit on command errors and treat unset variables as an error
set -eu
#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# LOAD SETTINGS
#=================================================
# Set app specific variables
app=$YNH_APP_INSTANCE_NAME

# Check destination directory
DESTDIR="/var/www/$app"
[[ ! -d $DESTDIR ]] && ynh_die \
"The destination directory '$DESTDIR' does not exist.\
 The app is not correctly installed, you should remove it first."

# Retrieve arguments
domain=$(ynh_app_setting_get "$app" domain)
path_url=$(ynh_app_setting_get "$app" path_url)
# Compatibility with previous version
if [ -z "$path_url" ] ; then
  path_url=$(ynh_app_setting_get "$app" path)
  ynh_app_setting_set $app path_url "$path_url"
fi
path_url=$(ynh_normalize_url_path $path_url)
final_path=$(ynh_app_setting_get "$app" final_path)
# Compatibility with previous version
if [ -z "$final_path" ] ; then
  final_path="/var/www/$app"
  ynh_app_setting_set $app final_path "$final_path"
fi
db_name=$(ynh_app_setting_get "$app" db_name)
# Compatibility with previous version
if [ -z "$db_name" ] ; then
  db_name=$app
  ynh_app_setting_set "$app" db_name "$db_name"
fi
db_user="$db_name"
db_pwd=$(ynh_app_setting_get "$app" mysqlpwd)
admin=$(ynh_app_setting_get "$app" admin)
admin_pwd=$(ynh_app_setting_get "$app" admin_pwd)
# Compatibility with previous version; password not set
if [ -z "$admin_pwd" ] ; then
  # Generate a new password
  admin_pwd=$(dd if=/dev/urandom bs=1 count=200 2> /dev/null | tr -c -d 'A-Za-z0-9' | sed -n 's/\(.\{24\}\).*/\1/p')
  # Compute password hash with the Piwigo function
  sudo cp ../conf/hash_password.php $final_path
  hashed_password=$(cd $final_path ; php hash_password.php $admin_pwd)
  # Update password hash in database
  ynh_mysql_connect_as $db_name $db_pwd $db_user <<< "UPDATE users SET password='$hashed_password' WHERE username='$admin';"
  ynh_app_setting_set $app admin_pwd "$admin_pwd"
  ynh_secure_remove "$final_path/hash_password.php"
fi
language=$(ynh_app_setting_get "$app" language)
if [ "$language" = "fr" ] ; then
  applanguage="fr_FR"
else
  applanguage="en_UK"
fi



is_public=$(ynh_app_setting_get "$app" is_public)
#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

# Use prior backup and restore on error only if backup feature
# exists on installed instance
if [ -f "/etc/yunohost/apps/$app/scripts/backup" ] ; then
  ynh_backup_before_upgrade # Backup the current version of the app
  ynh_clean_setup () {
      ynh_backup_after_failed_upgrade
  }
  ynh_abort_if_errors	# Stop script if an error is detected
fi

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

# Create tmp directory and fetch app inside
TMPDIR=$(ynh_mkdir_tmp)
ynh_setup_source "$TMPDIR"

#=================================================
# CREATE DEDICATED USER
#=================================================

ynh_system_user_create $app # Create dedicated user if not existing

#=================================================
# SPECIFIC SETUP
#=================================================

# Install files and set permissions
sudo cp -a $TMPDIR/!(upload|galleries) $final_path

sudo cp -a $TMPDIR/galleries/* $final_path/galleries/

sudo chown -R $app: $final_path
sudo chown -R $app: /home/yunohost.app/$app
sudo chmod 755 -R $final_path/galleries

#=================================================
# NGINX CONFIGURATION
#=================================================

ynh_add_nginx_config
ynh_store_file_checksum "/etc/nginx/conf.d/$domain.d/$app.conf"

# Copy and set php-fpm configuration
ynh_add_fpm_config

# Set permissions and reload nginx (needed at this stage for the PHP piwigo installation process)
sudo systemctl reload nginx
sleep 5s
sudo systemctl reload php5-fpm
ynh_app_setting_set "$app" unprotected_uris "/"
sudo yunohost app ssowatconf

# Configure piwigo via curl
sleep 5s
ynh_local_curl "/upgrade.php?language=$applanguage&now=true" "language=$applanguage" "username=$admin" "password=$admin_pwd"

# Change local config
sudo cp ../conf/config.inc.php $final_path/local/config/

# Setup database in local/config/database.inc.php
ynh_replace_string "DBTOCHANGE" "$db_name" ../conf/database.inc.php
ynh_replace_string "USERTOCHANGE" "$db_user" ../conf/database.inc.php
ynh_replace_string "PASSTOCHANGE" "$db_pwd" ../conf/database.inc.php
sudo cp ../conf/database.inc.php $final_path/local/config/database.inc.php

# Activate ldap plugin
ynh_mysql_connect_as $db_name $db_pwd $db_user <<< "UPDATE plugins SET state='active' WHERE id='Ldap_Login';"

# Protect URIs if private
if [ $is_public -eq 0 ];
then
  ynh_app_setting_delete "$app" unprotected_uris
  ynh_app_setting_set "$app" protected_uris "/"
fi

#=================================================
# RELOAD NGINX
#=================================================
sudo systemctl restart php5-fpm
sudo systemctl reload nginx