import { z } from 'zod';

// Environment variables for SpamShield
const envSchema = z.object({
  HIYA_API_KEY: z.string(),
  HIYA_API_URL: z.string().default('https://api.hiya.com/v1'),
  TRUECALLER_API_KEY: z.string().optional(),
  BERT_MODEL_PATH: z.string().default('./models/spam-classifier'),
  SPAM_THRESHOLD_AUTO_BLOCK: z.string().transform(Number).default(0.85),
  SPAM_THRESHOLD_FLAG: z.string().transform(Number).default(0.6),
  CALL_ANALYSIS_TIMEOUT_MS: z.string().transform(Number).default(200),
});

export const spamShieldEnv = envSchema.parse({
  HIYA_API_KEY: process.env.HIYA_API_KEY,
  HIYA_API_URL: process.env.HIYA_API_URL,
  TRUECALLER_API_KEY: process.env.TRUECALLER_API_KEY,
  BERT_MODEL_PATH: process.env.BERT_MODEL_PATH,
  SPAM_THRESHOLD_AUTO_BLOCK: process.env.SPAM_THRESHOLD_AUTO_BLOCK,
  SPAM_THRESHOLD_FLAG: process.env.SPAM_THRESHOLD_FLAG,
  CALL_ANALYSIS_TIMEOUT_MS: process.env.CALL_ANALYSIS_TIMEOUT_MS,
});

// Spam detection layers
export enum SpamLayer {
  NUMBER_REPUTATION = 'number_reputation',
  CONTENT_CLASSIFICATION = 'content_classification',
  BEHAVIORAL_ANALYSIS = 'behavioral_analysis',
  COMMUNITY_INTELLIGENCE = 'community_intelligence',
}

// Spam decision types
export enum SpamDecision {
  ALLOW = 'allow',
  FLAG = 'flag',
  BLOCK = 'block',
  CHALLENGE = 'challenge',
}

// Confidence levels
export enum ConfidenceLevel {
  LOW = 'low',
  MEDIUM = 'medium',
  HIGH = 'high',
  VERY_HIGH = 'very_high',
}

// Feature flags for spam detection
export const spamFeatureFlags = {
  enableNumberReputation: true,
  enableContentClassification: true,
  enableBehavioralAnalysis: true,
  enableCommunityIntelligence: true,
  enableRealTimeBlocking: true,
};

// Rate limits for spam analysis
export const spamRateLimits = {
  basic: {
    analysesPerMinute: 10,
    analysesPerDay: 100,
  },
  plus: {
    analysesPerMinute: 50,
    analysesPerDay: 1000,
  },
  premium: {
    analysesPerMinute: 200,
    analysesPerDay: 10000,
  },
};