#!/bin/bash

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

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

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

ynh_clean_setup () {
	true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

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

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
admin=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC
language=$YNH_APP_ARG_LANGUAGE
password=$(ynh_string_random 12)

app=$YNH_APP_INSTANCE_NAME

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

final_path=/var/www/$app
test ! -e "$final_path" || ynh_die "This path already contains a folder"

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

admin_password=$(openssl passwd -1 -salt xyz $password)

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

ynh_app_setting_set $app domain $domain
ynh_app_setting_set $app path $path_url
ynh_app_setting_set $app admin $admin
ynh_app_setting_set $app is_public $is_public
ynh_app_setting_set $app language $language

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

db_name=$(ynh_sanitize_dbid $app)
ynh_app_setting_set $app db_name $db_name
ynh_mysql_setup_db $db_name $db_name

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

ynh_app_setting_set $app final_path $final_path
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source "$final_path"
#Copy config.php to the final path
cp -r ../conf/config.php $final_path

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

### `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..."

# Create a system user
ynh_system_user_create $app

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

# Create a dedicated php-fpm config
ynh_add_fpm_config

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

# Set right permissions for curl install
chown -R $app: $final_path

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

ynh_replace_string "__dbuser__" "$db_name" "$final_path/config.php"
ynh_replace_string "__dbpass__" "$db_pwd" "$final_path/config.php"
ynh_replace_string "__admin__" "$admin" "$final_path/config.php"
ynh_replace_string "__lang__" "$language" "$final_path/config.php"
ynh_replace_string "^\$enabled = false;" "\$enabled = true;" "$final_path/scripts/setup.php"
# Replace variables in sql scripts
ynh_replace_string "__admin__" "$admin" ../conf/admin.sql
ynh_replace_string "__admin_pwd__" "$admin_password" ../conf/admin.sql

# Set the app as temporarily public for curl call
ynh_print_info "Configuring SSOwat..."

ynh_app_setting_set $app skipped_uris "/"
# Reload SSOwat config
yunohost app ssowatconf

# Reload Nginx
systemctl reload nginx

# Installation with curl
ynh_print_info "Finalizing installation..."

ynh_local_curl "/scripts/setup.php" "command=setup" 

# Remove the public access
if [ $is_public -eq 0 ]
then
	ynh_app_setting_delete $app skipped_uris
fi

#Add the admin account to the database
ynh_mysql_connect_as "$db_name" "$db_pwd" "$db_name" < "../conf/admin.sql"
#Disable setup for security
ynh_replace_string "^\$enabled = true;" "\$enabled = false;" "$final_path/scripts/setup.php"

#=================================================
# 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 "$final_path/config.php"

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

# Set permissions to app files
chown -R $app: $final_path

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

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	ynh_permission_update --permission="main" --add="visitors"
fi

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

systemctl reload nginx

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

message=" $app was successfully installed :)

Please open your $app domain: https://$domain$path_url

The admin username is: $admin
The admin password is: $password

If you are facing any problem or want to improve this app, please open a new issue here: https://github.com/YunoHost-Apps/ulogger_ynh/issues"

ynh_send_readme_to_admin "$message"

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

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