#!/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=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
admin=$YNH_APP_ARG_ADMIN
email=`ynh_user_get_info "$admin" 'mail'`
is_public=$YNH_APP_ARG_IS_PUBLIC
language=$YNH_APP_ARG_LANGUAGE
password=$YNH_APP_ARG_PASSWORD
q2a_name=${YNH_APP_ARG_Q2A_NAME// /%20}

### 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..." --weight=2

### 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..." --weight=3

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=$app --key=language --value=$language

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# CREATE A MYSQL DATABASE
#=================================================
ynh_script_progression --message="Creating a MySQL database..." --weight=3

### 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
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=3

### `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"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=14

### `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..." --weight=5

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

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

### `ynh_add_fpm_config` will use the files conf/php-fpm.conf

# Create a dedicated PHP-FPM config
ynh_add_fpm_config

#=================================================
# DOWNLOAD TRANSLATIONS
#=================================================
ynh_script_progression --message="Installing Translations..." --weight=6

### French

if [ $language == "fr" ]; then
	ynh_print_OFF
	git clone https://github.com/mrflos/q2a-lang-fr $final_path/qa-lang/fr
	ynh_print_ON
fi

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

mv $final_path/qa-config-example.php $final_path/qa-config.php
mv $final_path/.htaccess-example $final_path/.htaccess

ynh_replace_string --match_string="your-mysql-username" --replace_string=$db_user --target_file="$final_path/qa-config.php"
ynh_replace_string --match_string="your-mysql-password" --replace_string=$db_pwd --target_file="$final_path/qa-config.php"
ynh_replace_string --match_string="your-mysql-db-name" --replace_string=$db_name --target_file="$final_path/qa-config.php"

#=================================================
# SETUP APPLICATION WITH CURL
#=================================================

### Use these lines only if the app installation needs to be finalized through
### web forms. We generally don't want to ask the final user,
### so we're going to use curl to automatically fill the fields and submit the
### forms.

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

# Set the app as temporarily public for curl call
ynh_script_progression --message="Configuring SSOwat..." --weight=4
# Making the app public for curl
ynh_permission_update --permission="main" --add="visitors"
# Reload SSOwat config
yunohost app ssowatconf

# Reload NGINX
ynh_systemd_action --service_name=nginx --action=reload

# Installation with curl
ynh_script_progression --message="Finalizing installation..." --weight=4

ynh_local_curl "/index.php?qa=install" "create=Set+up+the+Database+including+User+Management"
ynh_local_curl "/index.php?qa=install" "handle=$admin" "password=$password" "email=$email" "super=Set+up+the+Super+Administrator"
ynh_local_curl_csrf "/index.php?qa=admin&qa_1=general"\
	"option_site_title=$q2a_name"\
	"option_site_url=https%3A%2F%2F$domain$path_url"\
	"option_neat_urls=0"\
	"option_site_language=$language"\
	"option_site_theme=SnowFlat"\
	"option_site_theme_mobile=SnowFlat"\
	"option_site_text_direction=ltr"\
	"option_tags_or_categories=tc"\
	"dosaveoptions=1"\
	"has_js=0"


# Remove the public access
ynh_permission_update --permission="main" --remove="visitors"

#=================================================
# 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="$final_path/qa-config.php"
ynh_store_file_checksum --file="$final_path/.htaccess"

#=================================================
# 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 root: $final_path

# Remove database initialization file
#rm $final_path/qa-include/qa-install.php

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..." --weight=2

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# Everyone can access the app.
	# The "main" permission is automatically created before the install script.
	ynh_permission_update --permission="main" --add="visitors"
fi

# Only the admin can access the admin panel of the app (if the app has an admin panel)
ynh_permission_create --permission="admin" --url="/index.php/admin" --allowed=$admin

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=5

ynh_systemd_action --service_name=nginx --action=reload

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

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