customer-im-client-dev/apps/im_app/lib/data/remote/cipher_api_requests.dart

import 'package:networks_sdk/networks_sdk.dart';

/// 对齐老项目 /app/api/cipher/v2/* API 端点
///
/// /app/api/cipher/v2/key/set 是预发布接口，仅测试阶段使用。

// ── GET /app/api/cipher/v2/key/my — 获取自己的公钥 ────────────────────────

class CipherMyKeyResponse {
  final String publicKey;
  final String? encPrivate;
  final int? uid;

  const CipherMyKeyResponse({
    required this.publicKey,
    this.encPrivate,
    this.uid,
  });

  factory CipherMyKeyResponse.fromJson(Map<String, dynamic> json) =>
      CipherMyKeyResponse(
        publicKey: (json['public_key'] ?? '') as String,
        encPrivate: json['enc_pk'] as String?,
        uid: json['uid'] as int?,
      );
}

class CipherGetMyKeyRequest extends ApiRequestable<CipherMyKeyResponse?> {
  @override
  String get path => '/app/api/cipher/v2/key/my';

  @override
  HttpMethod get method => HttpMethod.get;

  @override
  Map<String, dynamic> get parameters => {};

  @override
  CipherMyKeyResponse? decodeResponse(dynamic response) {
    final data = (response as dynamic).data;
    if (data is! Map<String, dynamic>) return null;
    return CipherMyKeyResponse.fromJson(data);
  }
}

// ── POST /app/api/cipher/v2/key/set — 上传公钥 ─────────────────────────────

class CipherSetKeyRequest extends ApiRequestable<void> {
  final String publicKey;
  final String encPk;

  CipherSetKeyRequest({required this.publicKey, required this.encPk});

  @override
  String get path => '/app/api/cipher/v2/key/set';

  @override
  HttpMethod get method => HttpMethod.post;

  @override
  Map<String, dynamic> get parameters => {
        'public_key': publicKey,
        'enc_pk': encPk,
      };

  @override
  void decodeResponse(dynamic response) {}
}

// ── GET /app/api/cipher/v2/chat/my — 获取所有聊天的加密密钥 ─────────────────

class CipherChatKeyItem {
  final int? chatId;
  final String? session;
  final int? round;

  const CipherChatKeyItem({this.chatId, this.session, this.round});

  factory CipherChatKeyItem.fromJson(Map<String, dynamic> json) =>
      CipherChatKeyItem(
        chatId: json['chat_id'] as int?,
        session: json['session'] as String?,
        round: json['round'] as int?,
      );
}

class CipherGetMyChatKeysRequest
    extends ApiRequestable<List<CipherChatKeyItem>?> {
  @override
  String get path => '/app/api/cipher/v2/chat/my';

  @override
  HttpMethod get method => HttpMethod.get;

  @override
  Map<String, dynamic> get parameters => {};

  @override
  List<CipherChatKeyItem>? decodeResponse(dynamic response) {
    final data = (response as dynamic).data;
    if (data is! List) return null;
    return data
        .cast<Map<String, dynamic>>()
        .map(CipherChatKeyItem.fromJson)
        .toList();
  }
}

// ── GET /app/api/cipher/v2/key/gets — 获取其他用户的公钥 ─────────────────────

class CipherUserKeyResponse {
  final int? uid;
  final String? publicKey;

  const CipherUserKeyResponse({this.uid, this.publicKey});

  factory CipherUserKeyResponse.fromJson(Map<String, dynamic> json) =>
      CipherUserKeyResponse(
        uid: json['uid'] as int?,
        publicKey: json['public_key'] as String?,
      );
}

class CipherGetUsersKeysRequest
    extends ApiRequestable<List<CipherUserKeyResponse>?> {
  final List<int> userIds;

  CipherGetUsersKeysRequest({required this.userIds});

  @override
  String get path => '/app/api/cipher/v2/key/gets';

  @override
  HttpMethod get method => HttpMethod.get;

  @override
  Map<String, dynamic> get parameters => {
        'uids': userIds.join(','),
      };

  @override
  List<CipherUserKeyResponse>? decodeResponse(dynamic response) {
    final data = (response as dynamic).data;
    if (data is! List) return null;
    return data
        .cast<Map<String, dynamic>>()
        .map(CipherUserKeyResponse.fromJson)
        .toList();
  }
}

// ── POST /app/api/cipher/v2/chat/update — 更新聊天加密密钥 ──────────────────

class CipherUpdateChatKeysRequest extends ApiRequestable<void> {
  final List<Map<String, dynamic>> sessions;

  CipherUpdateChatKeysRequest({required this.sessions});

  @override
  String get path => '/app/api/cipher/v2/chat/update';

  @override
  HttpMethod get method => HttpMethod.post;

  @override
  Map<String, dynamic> get parameters => {'sessions': sessions};

  @override
  void decodeResponse(dynamic response) {}
}