// ignore_for_file: sort_constructors_first

import 'package:flutter/foundation.dart';
import 'package:relationship_saver/features/share_intake/domain/share_models.dart';

/// Polarity for inferred or confirmed preference signals.
enum PreferenceSignalPolarity { like, dislike, neutral }

/// Lifecycle state for machine-assisted preference signals.
enum PreferenceSignalStatus { inferred, confirmed, dismissed }

/// Primary profile object used across the relationship app.
@immutable
class PersonProfile {
  const PersonProfile({
    required this.id,
    required this.name,
    required this.relationship,
    required this.affinityScore,
    required this.nextMoment,
    required this.tags,
    required this.notes,
    this.aliases = const <String>[],
    this.location,
    this.lastUpdatedAt,
    this.lastInteractedAt,
  });

  final String id;
  final String name;
  final String relationship;
  final int affinityScore;
  final DateTime nextMoment;
  final List<String> tags;
  final String notes;
  final List<String> aliases;
  final String? location;
  final DateTime? lastUpdatedAt;
  final DateTime? lastInteractedAt;

  PersonProfile copyWith({
    String? id,
    String? name,
    String? relationship,
    int? affinityScore,
    DateTime? nextMoment,
    List<String>? tags,
    String? notes,
    List<String>? aliases,
    String? location,
    DateTime? lastUpdatedAt,
    DateTime? lastInteractedAt,
  }) {
    return PersonProfile(
      id: id ?? this.id,
      name: name ?? this.name,
      relationship: relationship ?? this.relationship,
      affinityScore: affinityScore ?? this.affinityScore,
      nextMoment: nextMoment ?? this.nextMoment,
      tags: tags ?? this.tags,
      notes: notes ?? this.notes,
      aliases: aliases ?? this.aliases,
      location: location ?? this.location,
      lastUpdatedAt: lastUpdatedAt ?? this.lastUpdatedAt,
      lastInteractedAt: lastInteractedAt ?? this.lastInteractedAt,
    );
  }

  Map<String, dynamic> toJson() {
    return <String, dynamic>{
      'id': id,
      'name': name,
      'relationship': relationship,
      'affinityScore': affinityScore,
      'nextMoment': nextMoment.toUtc().toIso8601String(),
      'tags': tags,
      'notes': notes,
      'aliases': aliases,
      'location': location,
      'lastUpdatedAt': lastUpdatedAt?.toUtc().toIso8601String(),
      'lastInteractedAt': lastInteractedAt?.toUtc().toIso8601String(),
    };
  }

  factory PersonProfile.fromJson(Map<String, dynamic> json) {
    return PersonProfile(
      id: json['id'] as String,
      name: json['name'] as String,
      relationship: json['relationship'] as String,
      affinityScore: (json['affinityScore'] as num).toInt(),
      nextMoment: DateTime.parse(json['nextMoment'] as String).toLocal(),
      tags: (json['tags'] as List<dynamic>? ?? <dynamic>[])
          .map((dynamic tag) => '$tag')
          .toList(growable: false),
      notes: json['notes'] as String? ?? '',
      aliases: (json['aliases'] as List<dynamic>? ?? <dynamic>[])
          .map((dynamic value) => '$value')
          .toList(growable: false),
      location: json['location'] as String?,
      lastUpdatedAt: json['lastUpdatedAt'] == null
          ? null
          : DateTime.parse(json['lastUpdatedAt'] as String).toLocal(),
      lastInteractedAt: json['lastInteractedAt'] == null
          ? null
          : DateTime.parse(json['lastInteractedAt'] as String).toLocal(),
    );
  }
}

/// Stable mapping between an external sender/thread identity and a person.
@immutable
class SourceProfileLink {
  const SourceProfileLink({
    required this.id,
    required this.sourceApp,
    required this.normalizedDisplayName,
    required this.profileId,
    required this.firstSeenAt,
    required this.lastSeenAt,
    this.sourceUserId,
    this.sourceThreadId,
    this.sourceFingerprint,
  });

  final String id;
  final String sourceApp;
  final String? sourceUserId;
  final String? sourceThreadId;
  final String? sourceFingerprint;
  final String normalizedDisplayName;
  final String profileId;
  final DateTime firstSeenAt;
  final DateTime lastSeenAt;

  SourceProfileLink copyWith({
    String? id,
    String? sourceApp,
    String? sourceUserId,
    String? sourceThreadId,
    String? sourceFingerprint,
    String? normalizedDisplayName,
    String? profileId,
    DateTime? firstSeenAt,
    DateTime? lastSeenAt,
  }) {
    return SourceProfileLink(
      id: id ?? this.id,
      sourceApp: sourceApp ?? this.sourceApp,
      sourceUserId: sourceUserId ?? this.sourceUserId,
      sourceThreadId: sourceThreadId ?? this.sourceThreadId,
      sourceFingerprint: sourceFingerprint ?? this.sourceFingerprint,
      normalizedDisplayName:
          normalizedDisplayName ?? this.normalizedDisplayName,
      profileId: profileId ?? this.profileId,
      firstSeenAt: firstSeenAt ?? this.firstSeenAt,
      lastSeenAt: lastSeenAt ?? this.lastSeenAt,
    );
  }

  Map<String, dynamic> toJson() {
    return <String, dynamic>{
      'id': id,
      'sourceApp': sourceApp,
      'sourceUserId': sourceUserId,
      'sourceThreadId': sourceThreadId,
      'sourceFingerprint': sourceFingerprint,
      'normalizedDisplayName': normalizedDisplayName,
      'profileId': profileId,
      'firstSeenAt': firstSeenAt.toUtc().toIso8601String(),
      'lastSeenAt': lastSeenAt.toUtc().toIso8601String(),
    };
  }

  factory SourceProfileLink.fromJson(Map<String, dynamic> json) {
    return SourceProfileLink(
      id: json['id'] as String,
      sourceApp: json['sourceApp'] as String,
      sourceUserId: json['sourceUserId'] as String?,
      sourceThreadId: json['sourceThreadId'] as String?,
      sourceFingerprint: json['sourceFingerprint'] as String?,
      normalizedDisplayName: json['normalizedDisplayName'] as String? ?? '',
      profileId: json['profileId'] as String,
      firstSeenAt: DateTime.parse(json['firstSeenAt'] as String).toLocal(),
      lastSeenAt: DateTime.parse(json['lastSeenAt'] as String).toLocal(),
    );
  }
}

/// Structured fact captured about a person.
@immutable
class PersonFact {
  const PersonFact({
    required this.id,
    required this.personId,
    required this.type,
    required this.text,
    required this.sourceKind,
    required this.createdAt,
    required this.updatedAt,
    this.label,
    this.sourceApp,
    this.sourceUrl,
    this.sharedMessageId,
    this.inboxEntryId,
    this.confidence,
    this.needsReview = false,
    this.isSensitive = false,
  });

  final String id;
  final String personId;
  final CapturedFactType type;
  final String text;
  final String? label;
  final CaptureSourceKind sourceKind;
  final String? sourceApp;
  final String? sourceUrl;
  final String? sharedMessageId;
  final String? inboxEntryId;
  final double? confidence;
  final bool needsReview;
  final bool isSensitive;
  final DateTime createdAt;
  final DateTime updatedAt;

  PersonFact copyWith({
    String? id,
    String? personId,
    CapturedFactType? type,
    String? text,
    String? label,
    CaptureSourceKind? sourceKind,
    String? sourceApp,
    String? sourceUrl,
    String? sharedMessageId,
    String? inboxEntryId,
    double? confidence,
    bool? needsReview,
    bool? isSensitive,
    DateTime? createdAt,
    DateTime? updatedAt,
  }) {
    return PersonFact(
      id: id ?? this.id,
      personId: personId ?? this.personId,
      type: type ?? this.type,
      text: text ?? this.text,
      label: label ?? this.label,
      sourceKind: sourceKind ?? this.sourceKind,
      sourceApp: sourceApp ?? this.sourceApp,
      sourceUrl: sourceUrl ?? this.sourceUrl,
      sharedMessageId: sharedMessageId ?? this.sharedMessageId,
      inboxEntryId: inboxEntryId ?? this.inboxEntryId,
      confidence: confidence ?? this.confidence,
      needsReview: needsReview ?? this.needsReview,
      isSensitive: isSensitive ?? this.isSensitive,
      createdAt: createdAt ?? this.createdAt,
      updatedAt: updatedAt ?? this.updatedAt,
    );
  }

  Map<String, dynamic> toJson() {
    return <String, dynamic>{
      'id': id,
      'personId': personId,
      'type': type.name,
      'text': text,
      'label': label,
      'sourceKind': sourceKind.name,
      'sourceApp': sourceApp,
      'sourceUrl': sourceUrl,
      'sharedMessageId': sharedMessageId,
      'inboxEntryId': inboxEntryId,
      'confidence': confidence,
      'needsReview': needsReview,
      'isSensitive': isSensitive,
      'createdAt': createdAt.toUtc().toIso8601String(),
      'updatedAt': updatedAt.toUtc().toIso8601String(),
    };
  }

  factory PersonFact.fromJson(Map<String, dynamic> json) {
    final String typeName =
        json['type'] as String? ?? CapturedFactType.note.name;
    final String sourceKindName =
        json['sourceKind'] as String? ?? CaptureSourceKind.manual.name;
    return PersonFact(
      id: json['id'] as String,
      personId: json['personId'] as String,
      type: CapturedFactType.values.firstWhere(
        (CapturedFactType value) => value.name == typeName,
        orElse: () => CapturedFactType.note,
      ),
      text: json['text'] as String? ?? '',
      label: json['label'] as String?,
      sourceKind: CaptureSourceKind.values.firstWhere(
        (CaptureSourceKind value) => value.name == sourceKindName,
        orElse: () => CaptureSourceKind.manual,
      ),
      sourceApp: json['sourceApp'] as String?,
      sourceUrl: json['sourceUrl'] as String?,
      sharedMessageId: json['sharedMessageId'] as String?,
      inboxEntryId: json['inboxEntryId'] as String?,
      confidence: (json['confidence'] as num?)?.toDouble(),
      needsReview: json['needsReview'] as bool? ?? false,
      isSensitive: json['isSensitive'] as bool? ?? false,
      createdAt: DateTime.parse(json['createdAt'] as String).toLocal(),
      updatedAt: DateTime.parse(json['updatedAt'] as String).toLocal(),
    );
  }
}

/// Important date owned by a person profile.
@immutable
class PersonImportantDate {
  const PersonImportantDate({
    required this.id,
    required this.personId,
    required this.label,
    required this.date,
    required this.classification,
    required this.sourceKind,
    required this.createdAt,
    required this.updatedAt,
    this.sourceApp,
    this.inboxEntryId,
    this.isSensitive = false,
  });

  final String id;
  final String personId;
  final String label;
  final DateTime date;
  final String classification;
  final CaptureSourceKind sourceKind;
  final String? sourceApp;
  final String? inboxEntryId;
  final bool isSensitive;
  final DateTime createdAt;
  final DateTime updatedAt;

  PersonImportantDate copyWith({
    String? id,
    String? personId,
    String? label,
    DateTime? date,
    String? classification,
    CaptureSourceKind? sourceKind,
    String? sourceApp,
    String? inboxEntryId,
    bool? isSensitive,
    DateTime? createdAt,
    DateTime? updatedAt,
  }) {
    return PersonImportantDate(
      id: id ?? this.id,
      personId: personId ?? this.personId,
      label: label ?? this.label,
      date: date ?? this.date,
      classification: classification ?? this.classification,
      sourceKind: sourceKind ?? this.sourceKind,
      sourceApp: sourceApp ?? this.sourceApp,
      inboxEntryId: inboxEntryId ?? this.inboxEntryId,
      isSensitive: isSensitive ?? this.isSensitive,
      createdAt: createdAt ?? this.createdAt,
      updatedAt: updatedAt ?? this.updatedAt,
    );
  }

  Map<String, dynamic> toJson() {
    return <String, dynamic>{
      'id': id,
      'personId': personId,
      'label': label,
      'date': date.toUtc().toIso8601String(),
      'classification': classification,
      'sourceKind': sourceKind.name,
      'sourceApp': sourceApp,
      'inboxEntryId': inboxEntryId,
      'isSensitive': isSensitive,
      'createdAt': createdAt.toUtc().toIso8601String(),
      'updatedAt': updatedAt.toUtc().toIso8601String(),
    };
  }

  factory PersonImportantDate.fromJson(Map<String, dynamic> json) {
    final String sourceKindName =
        json['sourceKind'] as String? ?? CaptureSourceKind.manual.name;
    return PersonImportantDate(
      id: json['id'] as String,
      personId: json['personId'] as String,
      label: json['label'] as String? ?? '',
      date: DateTime.parse(json['date'] as String).toLocal(),
      classification: json['classification'] as String? ?? 'important',
      sourceKind: CaptureSourceKind.values.firstWhere(
        (CaptureSourceKind value) => value.name == sourceKindName,
        orElse: () => CaptureSourceKind.manual,
      ),
      sourceApp: json['sourceApp'] as String?,
      inboxEntryId: json['inboxEntryId'] as String?,
      isSensitive: json['isSensitive'] as bool? ?? false,
      createdAt: DateTime.parse(json['createdAt'] as String).toLocal(),
      updatedAt: DateTime.parse(json['updatedAt'] as String).toLocal(),
    );
  }
}

/// Inferred preference signal that can later drive recommendations or prompts.
@immutable
class PersonPreferenceSignal {
  const PersonPreferenceSignal({
    required this.id,
    required this.personId,
    required this.key,
    required this.label,
    required this.category,
    required this.polarity,
    required this.confidence,
    required this.status,
    required this.firstSeenAt,
    required this.lastSeenAt,
    required this.occurrenceCount,
    this.sourceApps = const <String>[],
    this.evidenceMessageIds = const <String>[],
    this.evidenceSnippets = const <String>[],
  });

  final String id;
  final String personId;
  final String key;
  final String label;
  final String category;
  final PreferenceSignalPolarity polarity;
  final double confidence;
  final PreferenceSignalStatus status;
  final DateTime firstSeenAt;
  final DateTime lastSeenAt;
  final int occurrenceCount;
  final List<String> sourceApps;
  final List<String> evidenceMessageIds;
  final List<String> evidenceSnippets;

  PersonPreferenceSignal copyWith({
    String? id,
    String? personId,
    String? key,
    String? label,
    String? category,
    PreferenceSignalPolarity? polarity,
    double? confidence,
    PreferenceSignalStatus? status,
    DateTime? firstSeenAt,
    DateTime? lastSeenAt,
    int? occurrenceCount,
    List<String>? sourceApps,
    List<String>? evidenceMessageIds,
    List<String>? evidenceSnippets,
  }) {
    return PersonPreferenceSignal(
      id: id ?? this.id,
      personId: personId ?? this.personId,
      key: key ?? this.key,
      label: label ?? this.label,
      category: category ?? this.category,
      polarity: polarity ?? this.polarity,
      confidence: confidence ?? this.confidence,
      status: status ?? this.status,
      firstSeenAt: firstSeenAt ?? this.firstSeenAt,
      lastSeenAt: lastSeenAt ?? this.lastSeenAt,
      occurrenceCount: occurrenceCount ?? this.occurrenceCount,
      sourceApps: sourceApps ?? this.sourceApps,
      evidenceMessageIds: evidenceMessageIds ?? this.evidenceMessageIds,
      evidenceSnippets: evidenceSnippets ?? this.evidenceSnippets,
    );
  }

  Map<String, dynamic> toJson() {
    return <String, dynamic>{
      'id': id,
      'personId': personId,
      'key': key,
      'label': label,
      'category': category,
      'polarity': polarity.name,
      'confidence': confidence,
      'status': status.name,
      'firstSeenAt': firstSeenAt.toUtc().toIso8601String(),
      'lastSeenAt': lastSeenAt.toUtc().toIso8601String(),
      'occurrenceCount': occurrenceCount,
      'sourceApps': sourceApps,
      'evidenceMessageIds': evidenceMessageIds,
      'evidenceSnippets': evidenceSnippets,
    };
  }

  factory PersonPreferenceSignal.fromJson(Map<String, dynamic> json) {
    final String polarityName =
        json['polarity'] as String? ?? PreferenceSignalPolarity.neutral.name;
    final String statusName =
        json['status'] as String? ?? PreferenceSignalStatus.inferred.name;
    return PersonPreferenceSignal(
      id: json['id'] as String,
      personId: json['personId'] as String,
      key: json['key'] as String,
      label: json['label'] as String? ?? '',
      category: json['category'] as String? ?? 'general',
      polarity: PreferenceSignalPolarity.values.firstWhere(
        (PreferenceSignalPolarity item) => item.name == polarityName,
        orElse: () => PreferenceSignalPolarity.neutral,
      ),
      confidence: (json['confidence'] as num?)?.toDouble() ?? 0,
      status: PreferenceSignalStatus.values.firstWhere(
        (PreferenceSignalStatus item) => item.name == statusName,
        orElse: () => PreferenceSignalStatus.inferred,
      ),
      firstSeenAt: DateTime.parse(
        json['firstSeenAt'] as String? ??
            DateTime.now().toUtc().toIso8601String(),
      ).toLocal(),
      lastSeenAt: DateTime.parse(
        json['lastSeenAt'] as String? ??
            DateTime.now().toUtc().toIso8601String(),
      ).toLocal(),
      occurrenceCount: (json['occurrenceCount'] as num?)?.toInt() ?? 1,
      sourceApps: (json['sourceApps'] as List<dynamic>? ?? <dynamic>[])
          .map((dynamic item) => '$item')
          .toList(growable: false),
      evidenceMessageIds:
          (json['evidenceMessageIds'] as List<dynamic>? ?? <dynamic>[])
              .map((dynamic item) => '$item')
              .toList(growable: false),
      evidenceSnippets:
          (json['evidenceSnippets'] as List<dynamic>? ?? <dynamic>[])
              .map((dynamic item) => '$item')
              .toList(growable: false),
    );
  }
}