#!/bin/bash

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

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

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

# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

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

# Retrieve arguments
domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
is_public=$YNH_APP_ARG_IS_PUBLIC
admin_username=$YNH_APP_ARG_USERNAME
admin_name=$YNH_APP_ARG_NAME
admin_email=$YNH_APP_ARG_EMAIL
password=$(ynh_string_random 24)
admin_password=$(openssl passwd -1 -salt xyz $password)

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..."

### 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..."

ynh_app_setting_set --app=$app --key=is_public --value=$is_public
ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..."

ynh_install_app_dependencies $pkg_dependencies

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

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

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..."

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"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..."

# Create a dedicated nginx config
ynh_add_nginx_config

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

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

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring PHP-FPM..." 

# Create a dedicated php-fpm config
ynh_add_fpm_config
phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)

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

# Adding the details of the database to the config file
ynh_replace_string "__dbuser__" "$db_name"  "../conf/config.ini.php"
ynh_replace_string "__dbpass__" "$db_pwd"   "../conf/config.ini.php"
ynh_replace_string "__dbname__" "$db_name"  "../conf/config.ini.php"

# Copy the config file to the final path
cp ../conf/config.ini.php $final_path/data/.

# Load initial SQL into the new database
ynh_mysql_connect_as "$db_name" "$db_pwd" "$db_name" < "../conf/sql/webtrees.sql"

# Replace variables in sql scripts
ynh_replace_string "__USER_NAME__"  "$admin_username" "../conf/sql/admin.sql"
ynh_replace_string "__NAME__"       "$admin_name"     "../conf/sql/admin.sql"
ynh_replace_string "__USER_EMAIL__" "$admin_email"    "../conf/sql/admin.sql"
ynh_replace_string "__PASSWORD__"   "$admin_password" "../conf/sql/admin.sql"

ynh_mysql_connect_as "$db_name" "$db_pwd" "$db_name" < "../conf/sql/admin.sql"

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

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

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

### For security reason, any app should set the permissions to root: before anything else.
### Then, if write authorization is needed, any access should be given only to directories
### that really need such authorization.

# Set permissions to app files
chown -R $app: $final_path
chmod -R 700 $final_path/data

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring SSOwat..."

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway.
	ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# SEND A README FOR THE ADMIN
#=================================================

message="Webtrees was successfully installed :)

Please open https://$domain$path_url 

Your credentials for the admin panel are:
- admin username: $admin_username
- admin password: $password

If you facing an issue or want to improve Webtrees, please open a new issue in this project: https://github.com/YunoHost-Apps/webtrees_ynh"

ynh_send_readme_to_admin "$message"

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

ynh_script_progression --message="Installation of Webtrees completed"