import type { aiTokens } from "@folo-services/drizzle"

// Analytics query parameters
export interface AnalyticsRequest {
  days?: string // Number of days to analyze (1-365), defaults to "30"
}

// Usage pattern by operation type
export interface UsagePattern {
  operationType: string // Type of AI operation (chat, summary, translation, etc.)
  totalTokens: number // Total tokens used for this operation type
  operationCount: number // Number of operations performed
  percentage: number // Percentage of total usage
  avgTokensPerOperation: number // Average tokens per operation
}

// Daily usage pattern
export interface DailyPattern {
  date: string // Date in YYYY-MM-DD format
  totalTokens: number // Total tokens used on this day
  operationCount: number // Number of operations on this day
  peakHour: number | null // Hour of day (0-23) with most usage
}

// Model usage pattern
export interface ModelPattern {
  model: string // AI model name
  totalTokens: number // Total tokens used with this model
  operationCount: number // Number of operations with this model
  percentage: number // Percentage of total usage
  avgEfficiency: number // Average tokens per operation for this model
}

// Analytics response data
export interface AnalyticsData {
  patterns: {
    daily: DailyPattern[] // Daily usage patterns
    byOperation: UsagePattern[] // Usage patterns by operation type
    byModel: ModelPattern[] // Usage patterns by AI model
  }
  usageHistory: typeof aiTokens.$inferSelect[]
}

export type AnalyticsResponse = AnalyticsData