#!/bin/bash

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

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

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

ynh_systemd_action --service_name=$app --action="stop" --log_path=systemd

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

# Cleanup
ynh_secure_remove --file="$install_dir/$app/priv/data/GeoLite2-City.mmdb"
ynh_secure_remove --file="/usr/share/GeoIP"

# Move legacy configuration files
if [ ! -f "$install_dir/config.exs" ]; then
    if [ -f "$install_dir/live/config/prod.secret.exs" ]; then
        ynh_delete_file_checksum --file="$install_dir/live/config/prod.secret.exs"
        mv -f "$install_dir/live/config/prod.secret.exs" "$install_dir/config.exs"
    fi
    if [ -f "$install_dir/live/config/runtime.exs" ]; then
        ynh_delete_file_checksum --file="$install_dir/live/config/runtime.exs"
        mv -f "$install_dir/live/config/runtime.exs" "$install_dir/config.exs"
    fi
    if [ -f "/etc/$app/config.exs" ]; then
        ynh_delete_file_checksum --file="/etc/$app/config.exs"
        mv -f "/etc/$app/config.exs" "$install_dir/config.exs"
        ynh_secure_remove --file="/etc/$app"
    fi
    chown -R "$app:$app" "$install_dir/config.exs"
    ynh_store_file_checksum --file="$install_dir/config.exs"
fi
# Check if previous "if block" did the job
if [ ! -f "$install_dir/config.exs" ]; then
    ynh_die --message="Could not find a previous configuration file. Please contact maintainers on the forum."
fi

# Migrate data to data_dir
# FIXME: could be old, might be nice to remove
if [ -e "$install_dir/$app/uploads/" ] && [ -n "$(ls -A "$install_dir/$app/uploads/")" ]; then
    ynh_script_progression --message="Moving data directory..."
    rsync -a "$install_dir/$app/uploads/" "$data_dir/uploads/"
    ynh_secure_remove "$install_dir/$app/uploads"

    if grep "Mobilizon.Web.Upload.Uploader.Local" "$MOBILIZON_CONFIG_PATH" >/dev/null; then
        ynh_replace_string --target_file="$MOBILIZON_CONFIG_PATH" \
            --match_string="uploads: \".*/uploads\"" \
            --replace_string="$data_dir/uploads"
    else
        ynh_add_config --template="uploads.exs" --destination="$install_dir/uploads.exs"
        cat "$install_dir/uploads.exs" >> "$MOBILIZON_CONFIG_PATH"
        ynh_secure_remove --file="$install_dir/uploads.exs"
    fi
fi

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Upgrading source files..."

# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$install_dir/live" --full_replace=1

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

#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..."

ynh_backup_if_checksum_is_different --file="$MOBILIZON_CONFIG_PATH"
ynh_replace_string --match_string="adapter: Bamboo.SMTPAdapter," --replace_string="adapter: Swoosh.Adapters.SMTP," --target_file="$MOBILIZON_CONFIG_PATH"
ynh_replace_string --match_string="server: \"127.0.0.1\"," --replace_string="relay: \"127.0.0.1\"," --target_file="$MOBILIZON_CONFIG_PATH"
ynh_store_file_checksum --file="$MOBILIZON_CONFIG_PATH"

chmod 400 "$MOBILIZON_CONFIG_PATH"
chown "$app:$app" "$MOBILIZON_CONFIG_PATH"

#=================================================
# MAKE SETUP
#=================================================
ynh_script_progression --message="Migrating app..."

ynh_exec_as "$app" MOBILIZON_CONFIG_PATH="$MOBILIZON_CONFIG_PATH" "$install_dir/live/bin/mobilizon_ctl" migrate

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

# Create a dedicated NGINX config
ynh_add_nginx_config

# Create a dedicated systemd config
ynh_add_systemd_config
yunohost service add "$app" --description="$app daemon for Mobilizon"

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

ynh_systemd_action --service_name="$app" --action="start" --log_path=systemd --line_match="Access Mobilizon.Web.Endpoint at"

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

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