#!/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
#=================================================

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
admin=$YNH_APP_ARG_ADMIN

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 --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..." --weight=2

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

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# 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

# Setup a privileged user for phpmyadmin (to prevent using MySQL root user)
db_admin_user="${app}_root"
ynh_app_setting_set --app=$app --key=db_admin_user --value=$db_admin_user
db_admin_pwd="$(ynh_string_random)"
ynh_app_setting_set --app=$app --key=db_admin_pwd --value=$db_admin_pwd

if ! ynh_mysql_user_exists --user=$db_admin_user
then
  ynh_mysql_create_user $db_admin_user "$db_admin_pwd"
  ynh_mysql_execute_as_root --sql="GRANT ALL PRIVILEGES ON *.* TO '$db_admin_user'@'localhost' IDENTIFIED BY '$db_admin_pwd' WITH GRANT OPTION;
  FLUSH PRIVILEGES;" --database=mysql
fi

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=6

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..." --weight=3

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=3

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

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring PHP-FPM..." --weight=2

# Create a dedicated PHP-FPM config
ynh_add_fpm_config --package="$extra_php_dependencies"

#=================================================
# SPECIFIC SETUP
#=================================================
# POPULATE THE DATABASE
#=================================================
ynh_script_progression --message="Filling database..." --weight=3

ynh_replace_string --match_string="__YNH_PMA_USER__" --replace_string="$db_name" --target_file=../conf/create_db.sql
ynh_mysql_connect_as --user="$db_name" --password="$db_pwd" --database="$db_name" \
    < ../conf/create_db.sql
ynh_replace_string --match_string="phpmyadmin" --replace_string="$db_name" --target_file=$final_path/sql/create_tables.sql
ynh_mysql_connect_as --user="$db_name" --password="$db_pwd" --database="$db_name" \
    < $final_path/sql/create_tables.sql

#=================================================
# CONFIGURE PHPMYADMIN
#=================================================
ynh_script_progression --message="Configuring phpMyAdmin..."

ynh_replace_string --match_string="__YNH_PMA_ADMIN_USER__" --replace_string="$db_admin_user" --target_file=../conf/config.inc.php
ynh_replace_string --match_string="__YNH_PMA_ADMIN_PASSWORD__" --replace_string="$db_admin_pwd" --target_file=../conf/config.inc.php
ynh_replace_string --match_string="__YNH_PMA_USER__" --replace_string="$db_name" --target_file=../conf/config.inc.php
ynh_replace_string --match_string="__YNH_PMA_PASSWORD__" --replace_string="$db_pwd" --target_file=../conf/config.inc.php

cp ../conf/config.inc.php $final_path

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

#=================================================
# INSTALL DEPENDENCIES WITH COMPOSER
#=================================================
ynh_script_progression --message="Installing dependencies with Composer..." --weight=60

# Install Composer
ynh_install_composer

# Install dependencies
# ynh_exec_warn_less ynh_composer_exec --commands="update --no-dev"
ynh_composer_exec --commands="update --no-dev"

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

# Set permissions to app files
chown -R root: $final_path
# config.inc.php contains sensitive data, restrict its access
chown root:$app $final_path/config.inc.php
chmod 640 $final_path/config.inc.php
# Setup phpMyAdmin temporary folder
mkdir -p $final_path/tmp
chown $app: $final_path/tmp

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..." --weight=3

# Restrict access to admin only
ynh_permission_update --permission="main" --add=$admin --remove="all_users" --protected=true

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=2

ynh_systemd_action --service_name=nginx --action=reload

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

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