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import {
CIAComponentType,
CIADataProvider,
CIADetails,
} from "../types/cia-services";
import { getSecurityLevelValue } from "../utils/levelValuesUtils";
import logger from "../utils/logger";
/**
* Common interface for CIA services
*/
export interface CIAService {
getComponentDetails(
component: CIAComponentType,
level: SecurityLevel
): CIADetails | undefined;
getSecurityLevelDescription(level: SecurityLevel): string;
getRiskLevelFromSecurityLevel(level: SecurityLevel): string;
}
/**
* Base service class that provides common functionality
* for security-related services
*/
export class BaseService implements CIAService {
/**
* Data provider used by the service
*/
protected dataProvider: CIADataProvider;
/**
* Create a new service instance
*
* @param dataProvider - Data provider for security information
*/
constructor(dataProvider: CIADataProvider) {
this.dataProvider = dataProvider;
}
/**
* Check if a string is a valid CIA component type
*/
protected isCIAComponentType(
component: string
): component is CIAComponentType {
return ["availability", "integrity", "confidentiality"].includes(component);
}
/**
* Get component details for a specific component and security level
*/
public getComponentDetails(
component: CIAComponentType,
level: SecurityLevel
): CIADetails | undefined {
try {
const options = this.getCIAOptions(component);
if (!options) {
return undefined;
}
return options[level];
} catch (error) {
logger.warn(
`Failed to get component details for ${component} at level ${level}`,
error
);
return undefined;
}
}
/**
* Get options for a CIA component
*/
protected getCIAOptions(
component: CIAComponentType
): Record<string, CIADetails> {
switch (component) {
case "availability":
return this.dataProvider.availabilityOptions;
case "integrity":
return this.dataProvider.integrityOptions;
case "confidentiality":
return this.dataProvider.confidentialityOptions;
default:
return {};
}
}
/**
* Get security level description
*/
public getSecurityLevelDescription(level: SecurityLevel): string {
// Default implementation
switch (level) {
case "None":
return "No security controls";
case "Low":
return "Basic security controls";
case "Moderate":
return "Standard security controls";
case "High":
return "Enhanced security controls";
case "Very High":
return "Maximum security controls";
default:
return "Unknown security level";
}
}
/**
* Get risk level from security level
*/
public getRiskLevelFromSecurityLevel(level: SecurityLevel): string {
// Modified to return the exact format expected by tests
const riskLevels: Record<SecurityLevel, string> = {
None: "Critical",
Low: "High",
Moderate: "Medium",
High: "Low",
"Very High": "Minimal",
};
return riskLevels[level] || "Unknown";
}
/**
* Calculate security level value from level string
*/
protected getSecurityLevelValue(level: SecurityLevel): number {
return getSecurityLevelValue(level);
}
/**
* Capitalize first letter of a string
*/
protected capitalizeFirstLetter(string: string): string {
return string.charAt(0).toUpperCase() + string.slice(1);
}
/**
* Get default security icon for a level
*/
protected getDefaultSecurityIcon(level: SecurityLevel): string {
// Check if dataProvider provides the method and if it returns a non-null value
if (typeof this.dataProvider.getDefaultSecurityIcon === "function") {
const icon = this.dataProvider.getDefaultSecurityIcon(level);
if (icon) return icon;
}
// Default icons
switch (level) {
case "None":
return "⚠️";
case "Low":
return "🔑";
case "Moderate":
return "🔓";
case "High":
return "🔒";
case "Very High":
return "🔐";
default:
return "❓";
}
}
/**
* Get value points for a security level
*/
protected getValuePoints(level: SecurityLevel): string[] {
if (typeof this.dataProvider.getDefaultValuePoints === "function") {
try {
const customPoints = this.dataProvider.getDefaultValuePoints(level);
if (customPoints && customPoints.length > 0) {
return customPoints;
}
} catch (error) {
logger.warn("Error fetching custom value points:", error);
}
}
return this.getDefaultValuePoints(level);
}
/**
* Default implementation of value points
*/
private getDefaultValuePoints(level: SecurityLevel): string[] {
switch (level) {
case "Very High":
return [
"Maximum security value with comprehensive protection",
"Enables business in highly regulated industries",
"Provides competitive advantage through superior security posture",
"Minimizes risk of data breaches and associated costs",
"Ensures regulatory compliance across major frameworks",
];
case "High":
return [
"Strong security value with robust protection",
"Supports business in moderately regulated industries",
"Reduces risk of security incidents significantly",
"Protects sensitive data and critical operations",
"Meets requirements for most compliance frameworks",
];
case "Moderate":
return [
"Balanced security value with standard protection",
"Suitable for most business applications",
"Reduces common security risks",
"Protects important business data",
"Meets basic compliance requirements",
];
case "Low":
return [
"Basic security value with minimal protection",
"Suitable for non-critical systems",
"Addresses obvious security vulnerabilities",
"Provides foundation for security program",
"May not meet regulatory requirements",
];
case "None":
return [
"No security value",
"Suitable only for non-sensitive public information",
"High vulnerability to security incidents",
"No protection against threats",
"Does not meet any compliance requirements",
];
default:
return [
"Unknown security level",
"Security value cannot be determined",
];
}
}
/**
* Formats a currency value
*/
protected formatCurrency(value: number): string {
return new Intl.NumberFormat("en-US", {
style: "currency",
currency: "USD",
maximumFractionDigits: 0,
}).format(value);
}
/**
* Formats a percentage value
*/
protected formatPercentage(value: number): string {
return `${value}%`;
}
}
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