import 'osm_node.dart';

/// Sentinel value for copyWith methods to distinguish between null and not provided
const Object _notProvided = Object();

/// A bundle of preset OSM tags that describe a particular surveillance node model/type.
class NodeProfile {
  final String id;
  final String name;
  final Map<String, String> tags;
  final bool builtin;
  final bool requiresDirection;
  final bool submittable;
  final bool editable;
  final double? fov; // Field-of-view in degrees (null means use dev_config default)

  NodeProfile({
    required this.id,
    required this.name,
    required this.tags,
    this.builtin = false,
    this.requiresDirection = true,
    this.submittable = true,
    this.editable = true,
    this.fov,
  });

  /// Get all built-in default node profiles
  static List<NodeProfile> getDefaults() => [
        NodeProfile(
          id: 'builtin-generic-alpr',
          name: 'Generic ALPR',
          tags: const {
            'man_made': 'surveillance',
            'surveillance:type': 'ALPR',
          },
          builtin: true,
          requiresDirection: true,
          submittable: false,
          editable: false,
        ),
        NodeProfile(
          id: 'builtin-flock',
          name: 'Flock',
          tags: const {
            'man_made': 'surveillance',
            'surveillance': 'public',
            'surveillance:type': 'ALPR',
            'surveillance:zone': 'traffic',
            'camera:type': 'fixed',
            'camera:mount': '', // Empty value for refinement
            'manufacturer': 'Flock Safety',
            'manufacturer:wikidata': 'Q108485435',
          },
          builtin: true,
          requiresDirection: true,
          submittable: true,
          editable: true,
        ),
        NodeProfile(
          id: 'builtin-motorola',
          name: 'Motorola/Vigilant',
          tags: const {
            'man_made': 'surveillance',
            'surveillance': 'public',
            'surveillance:type': 'ALPR',
            'surveillance:zone': 'traffic',
            'camera:type': 'fixed',
            'camera:mount': '', // Empty value for refinement
            'manufacturer': 'Motorola Solutions',
            'manufacturer:wikidata': 'Q634815',
          },
          builtin: true,
          requiresDirection: true,
          submittable: true,
          editable: true,
        ),
        NodeProfile(
          id: 'builtin-genetec',
          name: 'Genetec',
          tags: const {
            'man_made': 'surveillance',
            'surveillance': 'public',
            'surveillance:type': 'ALPR',
            'surveillance:zone': 'traffic',
            'camera:type': 'fixed',
            'camera:mount': '', // Empty value for refinement
            'manufacturer': 'Genetec',
            'manufacturer:wikidata': 'Q30295174',
          },
          builtin: true,
          requiresDirection: true,
          submittable: true,
          editable: true,
        ),
        NodeProfile(
          id: 'builtin-leonardo',
          name: 'Leonardo/ELSAG',
          tags: const {
            'man_made': 'surveillance',
            'surveillance': 'public',
            'surveillance:type': 'ALPR',
            'surveillance:zone': 'traffic',
            'camera:type': 'fixed',
            'camera:mount': '', // Empty value for refinement
            'manufacturer': 'Leonardo',
            'manufacturer:wikidata': 'Q910379',
          },
          builtin: true,
          requiresDirection: true,
          submittable: true,
          editable: true,
        ),
        NodeProfile(
          id: 'builtin-neology',
          name: 'Neology',
          tags: const {
            'man_made': 'surveillance',
            'surveillance': 'public',
            'surveillance:type': 'ALPR',
            'surveillance:zone': 'traffic',
            'camera:type': 'fixed',
            'camera:mount': '', // Empty value for refinement
            'manufacturer': 'Neology, Inc.',
          },
          builtin: true,
          requiresDirection: true,
          submittable: true,
          editable: true,
        ),
        NodeProfile(
          id: 'builtin-rekor',
          name: 'Rekor',
          tags: const {
            'man_made': 'surveillance',
            'surveillance': 'public',
            'surveillance:type': 'ALPR',
            'surveillance:zone': 'traffic',
            'camera:type': 'fixed',
            'camera:mount': '', // Empty value for refinement
            'manufacturer': 'Rekor',
          },
          builtin: true,
          requiresDirection: true,
          submittable: true,
          editable: true,
        ),
        NodeProfile(
          id: 'builtin-axis',
          name: 'Axis Communications',
          tags: const {
            'man_made': 'surveillance',
            'surveillance': 'public',
            'surveillance:type': 'ALPR',
            'surveillance:zone': 'traffic',
            'camera:type': 'fixed',
            'camera:mount': '', // Empty value for refinement
            'manufacturer': 'Axis Communications',
            'manufacturer:wikidata': 'Q2347731',
          },
          builtin: true,
          requiresDirection: true,
          submittable: true,
          editable: true,
        ),
        NodeProfile(
          id: 'builtin-generic-gunshot',
          name: 'Generic Gunshot Detector',
          tags: const {
            'man_made': 'surveillance',
            'surveillance:type': 'gunshot_detector',
          },
          builtin: true,
          requiresDirection: false,
          submittable: false,
          editable: false,
        ),
        NodeProfile(
          id: 'builtin-shotspotter',
          name: 'ShotSpotter',
          tags: const {
            'man_made': 'surveillance',
            'surveillance': 'public',
            'surveillance:type': 'gunshot_detector',
            'surveillance:brand': 'ShotSpotter',
            'surveillance:brand:wikidata': 'Q107740188',
          },
          builtin: true,
          requiresDirection: false,
          submittable: true,
          editable: true,
        ),
        NodeProfile(
          id: 'builtin-flock-raven',
          name: 'Flock Raven',
          tags: const {
            'man_made': 'surveillance',
            'surveillance': 'public',
            'surveillance:type': 'gunshot_detector',
            'brand': 'Flock Safety',
            'brand:wikidata': 'Q108485435',
          },
          builtin: true,
          requiresDirection: false,
          submittable: true,
          editable: true,
        ),
      ];



  /// Returns true if this profile can be used for submissions
  bool get isSubmittable => submittable;

  NodeProfile copyWith({
    String? id,
    String? name,
    Map<String, String>? tags,
    bool? builtin,
    bool? requiresDirection,
    bool? submittable,
    bool? editable,
    Object? fov = _notProvided,
  }) =>
      NodeProfile(
        id: id ?? this.id,
        name: name ?? this.name,
        tags: tags ?? this.tags,
        builtin: builtin ?? this.builtin,
        requiresDirection: requiresDirection ?? this.requiresDirection,
        submittable: submittable ?? this.submittable,
        editable: editable ?? this.editable,
        fov: fov == _notProvided ? this.fov : fov as double?,
      );

  Map<String, dynamic> toJson() => {
        'id': id,
        'name': name,
        'tags': tags,
        'builtin': builtin,
        'requiresDirection': requiresDirection,
        'submittable': submittable,
        'editable': editable,
        'fov': fov,
      };

  factory NodeProfile.fromJson(Map<String, dynamic> j) => NodeProfile(
        id: j['id'],
        name: j['name'],
        tags: Map<String, String>.from(j['tags']),
        builtin: j['builtin'] ?? false,
        requiresDirection: j['requiresDirection'] ?? true, // Default to true for backward compatibility
        submittable: j['submittable'] ?? true, // Default to true for backward compatibility
        editable: j['editable'] ?? true, // Default to true for backward compatibility
        fov: j['fov']?.toDouble(), // Can be null for backward compatibility
      );

  @override
  bool operator ==(Object other) =>
      identical(this, other) ||
      other is NodeProfile &&
          runtimeType == other.runtimeType &&
          id == other.id;

  @override
  int get hashCode => id.hashCode;

  /// Create a temporary empty profile for editing existing nodes
  /// Used as the default "<Existing tags>" option when editing nodes
  /// All existing tags will flow through as additionalExistingTags
  static NodeProfile createExistingTagsProfile(OsmNode node) {
    // Calculate FOV from existing direction ranges if applicable
    double? calculatedFov;
    
    // If node has direction/FOV pairs, check if they all have the same FOV
    if (node.directionFovPairs.isNotEmpty) {
      final firstFov = node.directionFovPairs.first.fovDegrees;
      
      // If all directions have the same FOV, use it for the profile
      if (node.directionFovPairs.every((df) => df.fovDegrees == firstFov)) {
        calculatedFov = firstFov;
      }
    }
    
    return NodeProfile(
      id: 'temp-empty-${node.id}',
      name: '<Existing tags>', // Will be localized in UI
      tags: {}, // Completely empty - all existing tags become additional
      builtin: false,
      requiresDirection: true,
      submittable: true,
      editable: false,
      fov: calculatedFov, // Use calculated FOV from existing direction ranges
    );
  }


}