#!/bin/bash
set -e

NODES_PM="/usr/share/perl5/PVE/API2/Nodes.pm"

case "$1" in
    configure)
        # If a legacy bash-script installation is present, revert it cleanly first.
        if grep -qF '$res->{sensorsJSONOutput}' "$NODES_PM" 2>/dev/null || \
           grep -qF '$res->{systemInfo}' "$NODES_PM" 2>/dev/null; then
            echo "pve-mod: Legacy bash-script installation detected — reverting before upgrade."
            /usr/lib/pve-mod/revert-patches.sh || true
        fi

        # Apply patches for any enabled modules. Fails loudly on error.
        /usr/lib/pve-mod/apply-patches.sh

        if [ -z "$2" ]; then
            echo ""
            echo "pve-mod installed successfully."
            echo "Run 'pve-mod-configure' to enable and configure modules."
            echo ""
        fi
        ;;

    triggered)
        # Fired by dpkg when pve-manager is upgraded. Only re-apply patches
        # if the user has opted in via 'pve-mod-configure'.
        TRIGGER_ENABLED=$(awk -F= '/^\[pve_trigger\]/{s=1} s && /^enabled=/{print $2; exit}' \
            /etc/pve-mod/pve-mod.conf 2>/dev/null || echo 0)
        if [ "${TRIGGER_ENABLED}" = "1" ]; then
            echo "pve-mod: pve-manager upgrade detected — re-applying patches."
            if ! /usr/lib/pve-mod/apply-patches.sh; then
                echo "pve-mod: WARNING: Failed to re-apply patches. Run 'pve-mod-configure' to fix." >&2
            fi
        else
            echo "pve-mod: WARNING: pve-manager was upgraded but auto re-patching is disabled." >&2
            echo "pve-mod: The Proxmox UI modifications may no longer be active." >&2
            echo "pve-mod: Run 'pve-mod-configure' to re-apply patches." >&2
        fi
        ;;

    abort-upgrade|abort-remove|abort-deconfigure)
        ;;
esac

#DEBHELPER#
exit 0