#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

ynh_clean_setup () {
	### Remove this function if there's nothing to clean before calling the remove script.
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================

domain=$YNH_APP_ARG_DOMAIN
path_url="/"
admin=$YNH_APP_ARG_ADMIN
email=$(sudo yunohost user info $admin | grep "mail:" | cut -d' ' -f2)
upload="256M"
database="1"

### If it's a multi-instance app, meaning it can be installed several times independently
### The id of the app as stated in the manifest is available as $YNH_APP_ID
### The instance number is available as $YNH_APP_INSTANCE_NUMBER (equals "1", "2", ...)
### The app instance name is available as $YNH_APP_INSTANCE_NAME
###    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
###    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
###    - ynhexample__{N} for the subsequent installations, with N=3,4, ...
### The app instance name is probably what interests you most, since this is
### guaranteed to be unique. This is a good unique identifier to define installation path,
### db names, ...
app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
### About --weight and --time
### ynh_script_progression will show to your final users the progression of each scripts.
### In order to do that, --weight will represent the relative time of execution compared to the other steps in the script.
### --time is a packager option, it will show you the execution time since the previous call.
### This option should be removed before releasing your app.
### Use the execution time, given by --time, to estimate the weight of a step.
### A common way to do it is to set a weight equal to the execution time in second +1.
### The execution time is given for the duration since the previous call. So the weight should be applied to this previous call.
ynh_script_progression --message="Validating installation parameters..." --time --weight=1

### If the app uses nginx as web server (written in HTML/PHP in most cases), the final path should be "/var/www/$app".
### If the app provides an internal web server (or uses another application server such as uwsgi), the final path should be "/opt/yunohost/$app"
final_path=/var/www/$app
test ! -e "$final_path" || ynh_die --message="This path already contains a folder"

# Register (book) web path
ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_script_progression --message="Storing installation settings..." --time --weight=1

ynh_app_setting_set --app=$app --key=domain   --value=$domain
ynh_app_setting_set --app=$app --key=path     --value=$path_url
ynh_app_setting_set --app=$app --key=admin    --value=$admin
ynh_app_setting_set --app=$app --key=email    --value=$email
ynh_app_setting_set --app=$app --key=upload   --value=$upload
ynh_app_setting_set --app=$app --key=database --value=$database


#=================================================
# STANDARD MODIFICATIONS
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --time --weight=1

### `ynh_install_app_dependencies` allows you to add any "apt" dependencies to the package.
### Those deb packages will be installed as dependencies of this package.
### If you're not using this helper:
###		- Remove the section "REMOVE DEPENDENCIES" in the remove script
###		- Remove the variable "pkg_dependencies" in _common.sh
###		- As well as the section "REINSTALL DEPENDENCIES" in the restore script
###		- And the section "UPGRADE DEPENDENCIES" in the upgrade script

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# CREATE A MYSQL DATABASE
#=================================================
ynh_script_progression --message="Creating a MySQL database..." --time --weight=1

### Use these lines if you need a database for the application.
### `ynh_mysql_setup_db` will create a database, an associated user and a ramdom password.
### The password will be stored as 'mysqlpwd' into the app settings,
### and will be available as $db_pwd
### If you're not using these lines:
###		- Remove the section "BACKUP THE MYSQL DATABASE" in the backup script
###		- Remove also the section "REMOVE THE MYSQL DATABASE" in the remove script
###		- As well as the section "RESTORE THE MYSQL DATABASE" in the restore script

db_name=$(ynh_sanitize_dbid --db_name=$app)
db_user=$db_name
ynh_app_setting_set --app=$app --key=db_name --value=$db_name
ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name

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

# 1 - Hubzilla
ynh_script_progression --message="Setting up Hubzilla source files..."  --time --weight=1

### `ynh_setup_source` is used to install an app from a zip or tar.gz file,
### downloaded from an upstream source, like a git repository.
### `ynh_setup_source` use the file conf/app.src

ynh_app_setting_set --app=$app --key=final_path --value=$final_path
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$final_path"

# 2 - Hubzilla Addons

# Make addon Directory and unpack the Hubzilla addons to this directory
ynh_script_progression --message="Create addon directory inside Hubzilla root folder..." --time --weight=1
mkdir $final_path/addon
ynh_script_progression --message="Setting up Hubzilla addons source files..." --time --weight=1
ynh_setup_source --dest_dir="$final_path/addon" --source_id="app_addons"


# 3 - Some extra folders
ynh_script_progression --message="Creating smarty3 folder for personal data..." --time --weight=1
mkdir -p "${final_path}/store/[data]/smarty3"
chmod -R 777 $final_path/store

# Import database schema
ynh_script_progression --message="Importing database..." --time --weight=1
ynh_mysql_connect_as --user="$db_name" --password="$db_pwd" --database="$db_name" < $final_path/install/schema_mysql.sql

# Copy the template install/htconfig.sample.php to .htconfig.php
ynh_script_progression --message="Moving .htconfig.php to root of Hubzilla ..." --time --weight=1
cp $final_path/install/htconfig.sample.php $final_path/.htconfig.php

# Create php.log inside Hubzilla for logs
ynh_script_progression --message="Create php.log for the Hubzilla debuging..." --time --weight=1
touch "$final_path/php.log"

#=================================================
# MODIFY A CONFIG FILE
#=================================================

### `ynh_replace_string` is used to replace a string in a file.
### (It's compatible with sed regular expressions syntax)

sed -i "s/your.mysqlhost.com/localhost/g" $final_path/.htconfig.php
sed -i "s/mysqlpassword/$db_pwd/g" $final_path/.htconfig.php
sed -i "s/mysqlusername/$db_name/g" $final_path/.htconfig.php
sed -i "s/mysqldatabasename/$db_name/g" $final_path/.htconfig.php
sed -i "s/mysite.example/$domain/g" $final_path/.htconfig.php
sed -i "s/if the auto install failed, put a unique random string here/$(ynh_string_random)$(ynh_string_random)$(ynh_string_random)/g" $final_path/.htconfig.php
sed -i "s/\['admin_email'\] = '';/\['admin_email'\] = '$email';/g" $final_path/.htconfig.php
sed -i "s@//error_reporting(E_ERROR | E_WARNING | E_PARSE );@error_reporting(E_ERROR | E_WARNING | E_PARSE );@g" $final_path/.htconfig.php
sed -i "s@//ini_set('error_log','php.out');@ini_set('error_log','php.log');@g" $final_path/.htconfig.php
sed -i "s@//ini_set('log_errors','1');@ini_set('log_errors','1');@g" $final_path/.htconfig.php
sed -i "s@//ini_set('display_errors', '0');@ini_set('display_errors', '0');@g" $final_path/.htconfig.php

# addon ldap config
ynh_script_progression --message="Push Ldap configuration to .htconfig.php..." --time --weight=1
sudo su -c "cat ../conf/ldap_conf.php >> $final_path/.htconfig.php"


#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring nginx web server..." --time --weight=1

### `ynh_add_nginx_config` will use the file conf/nginx.conf

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --time --weight=1

# Create a system user
ynh_system_user_create --username=$app

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring php-fpm..." --time --weight=1

### `ynh_add_fpm_config` is used to set up a PHP config.
### You can remove it if your app doesn't use PHP.
### `ynh_add_fpm_config` will use the files conf/php-fpm.conf
### If you're not using these lines:
###		- You can remove these files in conf/.
###		- Remove the section "BACKUP THE PHP-FPM CONFIGURATION" in the backup script
###		- Remove also the section "REMOVE PHP-FPM CONFIGURATION" in the remove script
###		- As well as the section "RESTORE THE PHP-FPM CONFIGURATION" in the restore script
###		With the reload at the end of the script.
###		- And the section "PHP-FPM CONFIGURATION" in the upgrade script

# Create a dedicated php-fpm config
ynh_add_fpm_config

# Set right permissions for Hubzilla
ynh_script_progression --message="Set right for Hubzilla..." --time --weight=1
chown -R $app: $final_path

# Set up cron job
ynh_script_progression --message="Setting up cron job..."  --time --weight=1
ynh_replace_string --match_string="YNH_WWW_PATH" --replace_string="$final_path"  --target_file="../conf/poller-cron"
ynh_replace_string --match_string="__USER__" --replace_string="$app"  --target_file="../conf/poller-cron"
cp ../conf/poller-cron /etc/cron.d/$app 

#=================================================
# STORE THE CONFIG FILE CHECKSUM
#=================================================

### `ynh_store_file_checksum` is used to store the checksum of a file.
### That way, during the upgrade script, by using `ynh_backup_if_checksum_is_different`,
### you can make a backup of this file before modifying it again if the admin had modified it.

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum --file="$final_path/.htconfig.php"

#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Configuring log rotation..." --time --weight=1

### `ynh_use_logrotate` is used to configure a logrotate configuration for the logs of this app.
### Use this helper only if there is effectively a log file for this app.
### If you're not using this helper:
###		- Remove the section "BACKUP LOGROTATE" in the backup script
###		- Remove also the section "REMOVE LOGROTATE CONFIGURATION" in the remove script
###		- As well as the section "RESTORE THE LOGROTATE CONFIGURATION" in the restore script
###		- And the section "SETUP LOGROTATE" in the upgrade script

# Use logrotate to manage application logfile(s)
ynh_use_logrotate "$final_path/php.log"

#=================================================
# SETUP FAIL2BAN
#=================================================
ynh_script_progression --message="Add Fail2Ban..." --time --weight=1
ynh_add_fail2ban_config --logpath="$final_path/php.log" --failregex="^.*auth\.php.*failed login attempt.*from IP <HOST>.*$" --max_retry="5"

#=================================================
# SETUP SSOWAT
#=================================================
# As Hubzilla is social network and have its own permission there is no need to keep Hubzilla behind SSO
ynh_script_progression --message="Configuring SSOwat..."  --time --weight=1
ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading nginx web server..." --time --weight=1

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Installation of $app completed" --time --last