#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..."

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
admin=$(ynh_app_setting_get --app=$app --key=admin)
password=$(ynh_app_setting_get --app=$app --key=password)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
users_status=$(ynh_app_setting_get --app=$app --key=users_status)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_user=$db_name
db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)

#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking version..."

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..."

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
	if [ $migration_process -eq 1 ]; then
		yunohost app remove $app
		# Reload some values changed by the migration process
		app=$YNH_APP_INSTANCE_NAME
	fi
	# Restore it if the upgrade fails
	ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..."

# Remove is_public
if [ -n "$(ynh_app_setting_get --app=$app --key=is_public)" ]; then
	ynh_app_setting_delete --app=$app --key=is_public
fi

# If db_name doesn't exist, create it
if [ -z $db_name ]; then
	db_name=$app
	ynh_app_setting_set --app=$app --key=db_name --value=$db_name
fi

# If final_path doesn't exist, create it
if [ -z $final_path ]; then
	final_path=/var/www/$app
	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
fi

# If users_status doesn't exist, create it
if [ -z $users_status ]; then
	users_status="Editor"
	ynh_app_setting_set --app=$app --key=users_status --value=$users_status
fi

if [ -z $password ]; then
	# Generate random password
	password=$(ynh_string_random --length=8)

	echo "The new version of SPIP provide a new password. You can change it in the private area." > mail_to_send
	echo "" >> mail_to_send
	echo "This password is: $password" >> mail_to_send

	ynh_send_readme_to_admin --app_message="mail_to_send" --type="upgrade"
	
	ynh_app_setting_set --app=$app --key=password --value=$password
fi

# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
	ynh_legacy_permissions_delete_all
fi

#=================================================
# HANDLE MIGRATION FROM SPIP2
#=================================================

ynh_handle_app_migration "spip2" "spip2_migration"
if [ $migration_process -eq 1 ]; then
	# If a migration has been perform
	# Reload some values changed by the migration process
	final_path=$(ynh_app_setting_get --app=$app --key=final_path)
	db_name=$(ynh_app_setting_get --app=$app --key=db_name)
fi

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..."

# Create a dedicated user (if not existing)
ynh_system_user_create --username=$app --home_dir=$final_path

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..."

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

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..."

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..."

ynh_install_app_dependencies $pkg_dependencies

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading PHP-FPM configuration..."

# Create a dedicated PHP-FPM config
ynh_add_fpm_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# SETUP APPLICATION WITH CURL
#=================================================
ynh_script_progression --message="Setuping application with CURL..."

# Set right permissions for curl install
mkdir -p $final_path/plugins/auto
chown -R $app:www-data "$final_path"

# Set the app as temporarily public for curl call
ynh_script_progression --message="Configuring SSOwat..."

ynh_backup_if_checksum_is_different --file="$final_path/config/connect.php"

mv $final_path/config/connect.php $final_path/config/connect.php.ynh_bkp

# Installation with curl
ynh_script_progression --message="Finalizing installation..."
ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=chmod"
ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=2" "chmod=750" "adresse_db=localhost" "login_db=$db_name" "pass_db=$db_pwd" "server_db=mysql"
ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=3" "adresse_db=localhost" "login_db=$db_name" "pass_db=$db_pwd" "server_db=mysql" "choix_db=$db_name" "tprefix=$db_name"
# For now spip have a problem with LDAP
#ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=ldap1"
#ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=ldap2" "adresse_ldap=localhost" "port_ldap=389" "tls_ldap=no" "protocole_ldap=3"
#ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=ldap3" "adresse_ldap=localhost" "port_ldap=389" "tls_ldap=no" "protocole_ldap=3"
#ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=ldap4" "adresse_ldap=localhost" "port_ldap=389" "tls_ldap=no" "protocole_ldap=3" "base_ldap=dc=yunohost,dc=org"
#
## statut_ldap can take: 0minirezo for Administrator, 1comite for Editor, 6forum for Visitor
#if [ $users_status = "Administrator" ]; then
#	status="0minirezo"
#elif [ $users_status = "Editor" ]; then
#	status="1comite"
#else
#	status="6forum"
#fi
#ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=ldap5" "adresse_ldap=localhost" "port_ldap=389" "tls_ldap=no" "protocole_ldap=3" "base_ldap=dc=yunohost,dc=org" "statut_ldap=$status" "ldap_login=sAMAccountName,uid,login,userid,cn,sn" "ldap_nom=cn" "ldap_email=mail" "ldap_bio=description"
#ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=3" "ldap_present=true"

# Fix db initialization
ynh_local_curl "/ecrire/?exec=install" "etape=3b"

email=$(yunohost user info $admin | grep mail: | cut -d' ' -f2 | tr -d '\n')
ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=3b" "adresse_db=localhost" "login_db=$db_name" "pass_db=$db_pwd" "server_db=mysql" "sel_db=$db_name" "nom=$admin" "email=$email" "login=$admin" "pass=$password" "pass_verif=$password"
ynh_local_curl "/ecrire/?suivant" "exec=install" "etape=fin"

#=================================================
# UPDATE A CONFIG FILE
#=================================================

#ynh_replace_string --match_string="'','utf8');" --replace_string="'ldap.php','utf8');" --target_file=$final_path/config/connect.php
cp ../conf/mes_options.php $final_path/config/mes_options.php

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

if [ ! -f $final_path/config/connect.php ]; then
	mv $final_path/config/connect.php.ynh_bkp $final_path/config/connect.php
else
	ynh_secure_remove --file="$final_path/config/connect.php.ynh_bkp"
fi

ynh_store_file_checksum --file="$final_path/config/connect.php"

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

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# SEND INFORMATION
#=================================================

echo "To finish the upgrade, you may have to update the database by clicking on the button (if asked) at this location: https://$domain$path_url/ecrire/" > mail_to_send

ynh_send_readme_to_admin --app_message="mail_to_send" --type="upgrade"

if [ $migration_process -eq 1 ]
then
    ynh_script_progression --message="Spip2 has been successfully migrated to Spip! \
A last scheduled operation will run in a couple of minutes to finish the \
migration in YunoHost side. Do not proceed any application operation while \
you don't see Spip as installed."

    # Execute a post migration script after the end of this upgrade.
    # Mainly for some cleaning
    script_post_migration=spip2_post_migration.sh
    cp ../conf/$script_post_migration /tmp
    ynh_replace_string --match_string="__OLD_APP__" --replace_string="$old_app" --target_file=/tmp/$script_post_migration
    ynh_replace_string --match_string="__NEW_APP__" --replace_string="$app" --target_file=/tmp/$script_post_migration
    chmod +x /tmp/$script_post_migration
    (cd /tmp; echo "/tmp/$script_post_migration > /tmp/$script_post_migration.log 2>&1" | at now + 2 minutes)
fi

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

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