#!/bin/bash

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

source _common.sh
source ynh_mongo_db__2
source /usr/share/yunohost/helpers

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICES
#=================================================
ynh_script_progression --message="Stopping systemd services..." --weight=1

for service_name in "${SERVICES_LIST[@]}"; do
    ynh_systemd_action --service_name="${app}-${service_name}" --action="stop" --log_path="/var/log/$app/$app.log"
done

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

# Missing settings ?
if [ -z "${public_key+x}" ]; then
    public_key=""
    ynh_app_setting_set --app="$app" --key=public_key --value="$public_key"
fi

# Set default tenant to empty if needed
if [ -z "${tenant+x}" ]; then
    tenant=""
    ynh_app_setting_set --app="$app" --key=tenant --value="$tenant"
fi

local new_db_pwd=$(ynh_string_random) # Generate a random password
	# If $db_pwd is not provided, use new_db_pwd instead for db_pwd
db_pwd="${db_pwd:-$new_db_pwd}"

if [[ -n "${document_path:-}" ]]; then
    # Renamed setting key
    document_dir="$document_path"
    ynh_app_setting_delete --app="$app" --key=document_path
    ynh_app_setting_set --app="$app" --key=document_dir --value="$document_dir"
fi

if [[ -n "${html_path:-}" ]]; then

    # document dir has moved from html_path to data_dir, so set the variable accordingly
    if [[ ${document_dir} == ${html_path}* ]]; then
        document_dir=$data_dir/docs
        ynh_app_setting_set --app="$app" --key=document_dir --value="$document_dir"
    fi

    # Migrate html_path to data_dir
    mv "$html_path/index.html" "$html_path/docs" "$data_dir"
    old_doc_dir="$html_path/docs"
    ynh_secure_remove --file="$html_path"
    ynh_app_setting_delete --app="$app" --key=html_path
    # FIXME: other settings

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

    # Update the path in .env file
    ynh_backup_if_checksum_is_different --file="$install_dir/.env"
    ynh_replace_string --match_string="$old_doc_dir" --replace_string="$document_dir" --target_file="$install_dir/.env"
    ynh_store_file_checksum --file="$install_dir/.env"

fi

# Recalculate the document_url if it was incorrectly set before
correct_document_url=$(append_uri "https://${domain}${path}" "docs")
if [ "$correct_document_url" != "$document_url" ]; then
    ynh_script_progression --message="Updading url for documents" --weight=1
    old_doc_url=$document_url
    document_url=$correct_document_url
    ynh_app_setting_set --app=$app --key=document_url --value=$document_url

fi

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

if [ "$upgrade_type" == "UPGRADE_APP" ]; then
    ynh_script_progression --message="Upgrading source files..." --weight=1

    # Download, check integrity, uncompress and patch the source from app.src
    ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep ".env .ssh/authorized_keys restart_services.sh"

    # Always update .env
    ynh_add_config --template=".env" --destination="$install_dir/.env"

    # FIXME: this should be handled by the core in the future
    # You may need to use chmod 600 instead of 400,
    # for example if the app is expected to be able to modify its own config
    chmod 400 "$install_dir/.env"
    chown $app:$app "$install_dir/.env"

fi

chmod -R o-rwx "$install_dir"
chown -R "$app:$app" "$install_dir"

#=================================================
# Configure document storage
#=================================================
ynh_script_progression --message="Configuring document storage..." --weight=1

ynh_add_config --template="index.html" --destination="$data_dir/index.html"

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

#=================================================
# ADD SSH ACCESS
#=================================================

if [ -n "$public_key" ]; then
    ynh_script_progression --message="Upgrading ssh access for dev..." --weight=1
    _install_restart_script_and_sudoers
fi

#=================================================
# UPGRADE MongoDB
#=================================================
ynh_script_progression --message="Upgrading MongoDB..." --weight=1

# Install the required version of Mongo
ynh_install_mongo --mongo_version=$mongo_version

# We are now assigning the user to the database, so update the user's rights
for db_name in "${MONGO_DB_LIST[@]}"; do
    ynh_mongo_setup_db --db_user="$db_user" --db_pwd="$db_pwd" --db_name="dontCode$tenant${db_name}"
done

#=================================================
# REAPPLY SYSTEM CONFIGURATIONS
#=================================================
ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1

ynh_add_nginx_config

ynh_use_logrotate --non-append

for i in "${!SERVICES_LIST[@]}"; do
    service_name="${SERVICES_LIST[i]}"
    port="${PORT_LIST[i]}"
    ynh_add_systemd_config --service="${app}-${service_name}"
    yunohost service add "${app}-${service_name}" --description="Dont-code platform ${service_name} service" --log="/var/log/${app}/${service_name}-${app}.log"
done

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

for service_name in "${SERVICES_LIST[@]}"; do
    ynh_systemd_action --service_name="${app}-${service_name}" --action="start" --log_path="/var/log/$app/$app.log"
done

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

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