#!/bin/bash

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

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

mautrix_version=$(ynh_app_upstream_version)
synapse_db_name="$(get_synapse_db_name $synapse_instance)"
server_name=$(ynh_app_setting_get --app $synapse_instance --key server_name)
domain=$(ynh_app_setting_get --app $synapse_instance --key domain)

#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking version..." --weight=1

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..." --weight=1

ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..." --weight=1

# TODO: check if there are some file that need some chown chmod
# TODO: look at whatsapp to compare

# Check if an old version of the bridge is in use
# In this case it needs to be upgraded from python to go
# Note that 0.5.0 was never released, but it makes for a good cut-off
if ynh_compare_current_package_version --comparison lt --version 0.5.0~ynh1
then
    source upgrade-pre-0.5.sh
fi

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=2

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

chmod 750 "$install_dir"
chmod -R 750 "$install_dir"
chown -R $app:$app "$install_dir"

#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..." --weight=2
echo "botusers=$botusers"
if [[ -z "$botusers" ]] || [ "$botusers" == "admin" ]; then
    if_botusers="# "
else
    if_botusers=""
fi

ynh_add_config --template="config.yaml" --destination="$install_dir/config.yaml"

chmod 400 "$install_dir/config.yaml"
chown "$app:$app" "$install_dir/config.yaml"

#=================================================
# REGISTER SYNAPSE APP-SERVICE
#=================================================
ynh_script_progression --message="Registering Synapse app-service" --weight=1

$install_dir/mautrix-signal -g -c $install_dir/config.yaml -r /etc/matrix-$synapse_instance/app-service/$app.yaml
/opt/yunohost/matrix-$synapse_instance/update_synapse_for_appservice.sh || ynh_die --message="Synapse can't restart with the appservice configuration"

chown -R $app:$app "$install_dir"
ynh_store_file_checksum --file="/etc/matrix-$synapse_instance/app-service/$app.yaml"
ynh_store_file_checksum --file="$install_dir/config.yaml"

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Upgrading logrotate configuration..." --weight=1

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --logfile "/var/log/$app/$app.log" --nonappend --specific_user $app/$app
chmod -R 600 "/var/log/$app"
chmod 700 "/var/log/$app"
chown -R $app:$app /var/log/$app

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=1

yunohost service add "$app" --description="$app daemon for bridging Signal and Matrix messages" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

# Start a systemd service
ynh_systemd_action --service_name="$app" --action="start"

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

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