SIM Card Management¶

interface SimProfile {
  id: string;
  iccid: string;  // Integrated Circuit Card Identifier
  imsi: string;   // International Mobile Subscriber Identity
  msisdn?: string; // Mobile Station International Subscriber Directory Number
  status: 'ACTIVE' | 'INACTIVE' | 'BLOCKED' | 'EXPIRED';
  type: 'PHYSICAL' | 'ESIM';
  capabilities: {
    voice: boolean;
    sms: boolean;
    data: boolean;
    cat: boolean;  // Card Application Toolkit support
  };
  securityDomain: {
    mcc: string;   // Mobile Country Code
    mnc: string;   // Mobile Network Code
    keySet: number;
    algorithm: 'MILENAGE' | 'COMP128' | 'TUAK';
  };
  subscriptionInfo: {
    activationDate: string;
    expiryDate?: string;
    serviceClass: string;
    ratingGroup: number;
  };
}

interface EsimProfile extends SimProfile {
  eid: string;     // eUICC Identifier
  profileState: 'DOWNLOADED' | 'ENABLED' | 'DISABLED' | 'DELETED';
  smdsAddress: string;  // Subscription Manager Data Preparation address
  profileClass: 'OPERATIONAL' | 'PROVISIONING' | 'TESTING';
  profileNickname?: string;
}

interface SimOperation {
  id: string;
  type: 'ENABLE' | 'DISABLE' | 'DELETE' | 'UPDATE' | 'DOWNLOAD';
  status: 'PENDING' | 'IN_PROGRESS' | 'COMPLETED' | 'FAILED';
  timestamp: string;
  targetIccid: string;
  result?: {
    success: boolean;
    errorCode?: string;
    errorMessage?: string;
  };
}

class PhysicalSimManager {
  async activateProfile(iccid: string): Promise<SimOperation> {
    // Activate SIM profile
    // Send OTA commands
    // Update HLR/HSS records
  }

  async blockProfile(iccid: string, reason: string): Promise<SimOperation> {
    // Block SIM profile
    // Update security status
    // Notify network elements
  }

  async updateSubscription(iccid: string, updates: Partial<SimProfile>): Promise<SimOperation> {
    // Update subscription parameters
    // Send OTA updates
    // Sync with billing system
  }
}

class EsimManager {
  async downloadProfile(eid: string, profileData: Partial<EsimProfile>): Promise<SimOperation> {
    // Connect to SM-DP+
    // Initiate profile download
    // Monitor download status
  }

  async enableProfile(eid: string, iccid: string): Promise<SimOperation> {
    // Enable specific profile on eUICC
    // Update network registrations
    // Verify profile status
  }

  async deleteProfile(eid: string, iccid: string): Promise<SimOperation> {
    // Delete profile from eUICC
    // Clean up network registrations
    // Update profile inventory
  }
}

interface OtaCommand {
  id: string;
  type: 'STK' | 'RAM' | 'RFM';
  command: string;
  security: {
    kic: string;  // Key for Integrity and Confidentiality
    kid: string;  // Key for ICV Derivation
    spi: number;  // Security Parameter Indicator
  };
  targetIccid: string;
}

class OtaManager {
  async sendCommand(command: OtaCommand): Promise<SimOperation> {
    // Format OTA command
    // Apply security
    // Send through SMS or CAT_TP
    // Monitor delivery status
  }

  async updateKeys(iccid: string, keySet: number): Promise<SimOperation> {
    // Generate new key set
    // Send key update command
    // Verify key installation
  }
}

enum SimError {
  PROFILE_NOT_FOUND = 'PROFILE_NOT_FOUND',
  INVALID_STATE = 'INVALID_STATE',
  SECURITY_ERROR = 'SECURITY_ERROR',
  NETWORK_ERROR = 'NETWORK_ERROR',
  INCOMPATIBLE_DEVICE = 'INCOMPATIBLE_DEVICE',
  OPERATION_NOT_ALLOWED = 'OPERATION_NOT_ALLOWED'
}

interface SimErrorResponse {
  error: SimError;
  message: string;
  iccid?: string;
  eid?: string;
  operation?: string;
  timestamp: string;
  details?: {
    failureReason: string;
    recommendedAction?: string;
  };
}

class SimCardService {
  constructor(
    private physicalManager: PhysicalSimManager,
    private esimManager: EsimManager,
    private otaManager: OtaManager
  ) {}

  async provisionNewSubscriber(subscriberData: {
    type: 'PHYSICAL' | 'ESIM',
    msisdn: string,
    serviceClass: string
  }): Promise<SimProfile> {
    try {
      if (subscriberData.type === 'PHYSICAL') {
        // Provision physical SIM
        const profile = await this.physicalManager.activateProfile(/* ... */);
        await this.otaManager.sendCommand(/* initial setup command */);
        return profile;
      } else {
        // Provision eSIM
        const profile = await this.esimManager.downloadProfile(/* ... */);
        await this.esimManager.enableProfile(/* ... */);
        return profile;
      }
    } catch (error) {
      throw this.handleError(error);
    }
  }

  async updateSubscriberServices(iccid: string, services: string[]): Promise<void> {
    // Update subscriber services
    // Send OTA updates if needed
    // Update network elements
  }

  async handleProfileLifecycle(iccid: string, action: 'SUSPEND' | 'RESUME' | 'TERMINATE'): Promise<void> {
    // Handle profile lifecycle events
    // Update network registrations
    // Manage billing status
  }
}