#!/bin/bash

# AutoNAS Manager - System integration for udev/systemd events
# This script is called by udev rules when disks are attached/detached
# Uses autonas-core.sh for all business logic

# Load the AutoNAS core library
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "${SCRIPT_DIR}/autonas-core.sh" || {
    echo "Error: Cannot load AutoNAS core library" >&2
    exit 1
}

# Set LOG_TAG for this component
LOG_TAG="autonas-disk-handler"

# Main script logic
case "$1" in
    "attach")
        if [ -z "$2" ]; then
            log_message "Error: UUID required for attach operation" "err"
            exit 1
        fi
        log_message "AutoNAS attach operation started for UUID: $2" "info"
        handle_attach "$2"
        ;;
    "attach-deferred")
        if [ -z "$2" ]; then
            log_message "Error: UUID required for deferred attach operation" "err"
            exit 1
        fi
        log_message "AutoNAS deferred attach operation started for UUID: $2" "info"
        handle_attach "$2"
        ;;
    "detach")
        if [ -z "$2" ]; then
            log_message "Error: UUID or disk name required for detach operation" "err"
            exit 1
        fi
        log_message "AutoNAS detach operation started for identifier: $2" "info"
        
        # Check if identifier is UUID (contains hyphens and matches UUID pattern) or name
        if [[ "$2" =~ ^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$ ]] || [[ "$2" =~ ^[0-9a-fA-F]{4}-[0-9a-fA-F]{4}$ ]]; then
            # It's a UUID - use directly
            handle_detach "$2"
        else
            # It's a name - get UUID from config
            local config_line
            config_line=$(get_config_by_name "$2" 2>/dev/null)
            if [ -n "$config_line" ]; then
                local uuid=$(echo "$config_line" | cut -d: -f1)
                handle_detach "$uuid"
            else
                log_message "No configuration found for name: $2 - detach skipped" "info"
                log_message "This may be normal if the disk was not configured for AutoNAS" "info"
                exit 0
            fi
        fi
        ;;
    "import")
        if [ -z "$2" ] || [ -z "$3" ] || [ -z "$4" ]; then
            log_message "Error: UUID, mount_point, and destination required for import operation" "err"
            exit 1
        fi
        log_message "AutoNAS background import operation started for UUID: $2" "info"
        run_background_import "$2" "$3" "$4" "$5"
        ;;
    "reload")
        handle_reload
        ;;
    *)
        echo "Usage: $0 {attach|attach-deferred|detach|import|reload} <UUID|name> [args...]"
        echo "  attach <UUID>         - Attach disk by UUID (direct)"
        echo "  attach-deferred <UUID> - Attach disk by UUID (via systemd)"
        echo "  detach <UUID>         - Detach disk by UUID (via udev)"
        echo "  detach <name>         - Detach disk by name (for manual/clean unmount)"
        echo "  import <UUID> <mount> <dest> [script] - Run background camera import"
        echo "This script is typically called by udev rules or systemd"
        log_message "Invalid arguments provided: $*" "err"
        exit 1
        ;;
esac