#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

# Load common variables for all scripts.
source _variables

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

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

app=$YNH_APP_INSTANCE_NAME

unattended_verbosity=$(ynh_app_setting_get --app=$app --key=unattended_verbosity)
overwrite_periodic=$(ynh_app_setting_get --app=$app --key=overwrite_periodic)

#=================================================
# CHECK VERSION
#=================================================

upgrade_type=$(ynh_check_app_version_changed)

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

# If overwrite_periodic doesn't exist, create it
if [ -z "$overwrite_periodic" ]; then
    overwrite_periodic=1
    ynh_app_setting_set --app=$app --key=overwrite_periodic --value=$overwrite_periodic
fi

# If admin_mail_html doesn't exist, create it
if [ -z "$admin_mail_html" ]; then
    admin_mail_html=1
    ynh_app_setting_set --app=$app --key=admin_mail_html --value=$admin_mail_html
fi

# Make a non perfect backup for apticron.conf if non existent
if [ ! -e "../conf/apticron.conf.backup" ]; then
    # Create a backup of the config file for the reset action
    cp "/etc/apticron/apticron.conf" "../conf/apticron.conf.backup"
    sed --in-place '/^CUSTOM_SUBJECT=/d' "../conf/apticron.conf.backup"
    sed --in-place '/^CUSTOM_NO_UPDATES_SUBJECT=/d' "../conf/apticron.conf.backup"
fi

# Make a non perfect backup for apticron cron file if non existent
if [ ! -e "../conf/apticron.crond.backup" ]; then
    # Create a backup of the config file for the reset action
    cp "/etc/cron.d/apticron" "../conf/apticron.crond.backup"
    sed --in-place '/^[[:digit:]]/d' "../conf/apticron.crond.backup"
    ynh_replace_string --match_string="^#\([[:digit:]].*\)" --replace_string="\1" --target_file="../conf/apticron.crond.backup"
fi

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=3

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
    # 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
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --weight=5

ynh_install_app_dependencies $app_depencencies

#=================================================
# SPECIFIC UPGRADE
#=================================================
# UPGRADE APTICRON
#=================================================

# Nothing to do here...

#=================================================
# UPGRADE UNATTENDED-UPGRADES
#=================================================

# Nothing to do here...

#=================================================
# UPGRADE APT PERIODIC FOR UNATTENDED
#=================================================

# Overwrite 02periodic config file only if it's allowed
if [ $overwrite_periodic -eq 1 ]
then
    ynh_script_progression --message="Upgrading APT Periodic for Unattended..." --weight=3
    ynh_backup_if_checksum_is_different --file="/etc/apt/apt.conf.d/02periodic"

    cp "../conf/02periodic" "/etc/apt/apt.conf.d/02periodic"
    ynh_replace_string --match_string="__VERBOSITY__" --replace_string="$unattended_verbosity" --target_file="/etc/apt/apt.conf.d/02periodic"
    # This config file is used by /etc/cron.daily/apt

    ynh_store_file_checksum --file="/etc/apt/apt.conf.d/02periodic"
fi

#=================================================
# UPGRADE APTICRON CRON FILE
#=================================================

# Nothing to do here...

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

# Get main domain and buid the url of the admin panel of the app.
admin_panel="https://$(grep portal_domain /etc/ssowat/conf.json | cut -d'"' -f4)/yunohost/admin/#/apps/$app"

# If a html email is required. Apply html to the changelog.
if [ "$admin_mail_html" -eq 1 ]; then
    format=html
else
    format=plain
fi
ynh_app_changelog --format=$format

echo "To modify any option of unattended-upgrades, please have a look to /etc/apt/apt.conf.d/50unattended-upgrades and 
/etc/apt/apt.conf.d/02periodic
Unattended-upgrades will be executed every day at midnight.

To modify the configuration of apticron, please have a look to /etc/apticron/apticron.conf.
Apticron will be executed, depending of the requested configuration at 8 p.m. and 2 a.m. If you want to change this schedule, please have a look to the cron file /etc/cron.d/apticron.

You can configure this app easily by using the experimental __URL_TAG1__config-panel feature__URL_TAG2__$admin_panel/config-panel__URL_TAG3__.
You can also find some specific actions for this app by using the experimental __URL_TAG1__action feature__URL_TAG2__$admin_panel/actions__URL_TAG3__.

If you're facing an issue or want to improve this app, please open a new issue in this __URL_TAG1__project__URL_TAG2__https://github.com/YunoHost-Apps/unattended_upgrades_ynh__URL_TAG3__.

---

Changelog since your last upgrade:
$(cat changelog)" > mail_to_send

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

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

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