postinst

#!/bin/sh
set -e

TARGET_FILE="/usr/share/pve-manager/js/pvemanagerlib.js"
PATCH_FILE="/usr/share/libpve-storage-custom-moosefs-perl/pve-moosefs.patch"

case "$1" in
    configure)
        if [ -f "$TARGET_FILE" ] && ! grep -q "moosefs:" "$TARGET_FILE"; then
            echo "Applying MooseFS patch to $TARGET_FILE"
            
            # Create a backup with dpkg extension (standard Debian approach)
            cp -a "$TARGET_FILE" "$TARGET_FILE.dpkg-backup"
            
            # Apply the patch using patch from Debian core utilities
            if patch -p1 "$TARGET_FILE" < "$PATCH_FILE"; then
                echo "MooseFS patch applied successfully"
                
                # Register the file modification with dpkg
                if type dpkg-trigger >/dev/null 2>&1; then
                    dpkg-trigger --no-await update-pvemanager
                fi
                
                # Restart the pveproxy service
                if systemctl is-active pveproxy >/dev/null 2>&1; then
                    systemctl restart pveproxy
                fi
            else
                echo "Error: Failed to apply patch, restoring from backup"
                cp "$TARGET_FILE.dpkg-backup" "$TARGET_FILE"
            fi
        elif [ -f "$TARGET_FILE" ]; then
            echo "MooseFS support already present in $TARGET_FILE, skipping patch"
        else
            echo "Warning: Target file $TARGET_FILE not found, cannot apply patch"
        fi
        ;;
esac

exit 0