package ports

import (
	"context"
	"time"
)

// SubscriptionCacheData represents cached subscription data
type SubscriptionCacheData struct {
	Status       string
	ExpiresAt    time.Time
	DailyUsage   float64
	WeeklyUsage  float64
	MonthlyUsage float64
	Version      int64
}

// BillingCache defines cache operations for billing service
type BillingCache interface {
	// Balance operations
	GetUserBalance(ctx context.Context, userID int64) (float64, error)
	SetUserBalance(ctx context.Context, userID int64, balance float64) error
	DeductUserBalance(ctx context.Context, userID int64, amount float64) error
	InvalidateUserBalance(ctx context.Context, userID int64) error

	// Subscription operations
	GetSubscriptionCache(ctx context.Context, userID, groupID int64) (*SubscriptionCacheData, error)
	SetSubscriptionCache(ctx context.Context, userID, groupID int64, data *SubscriptionCacheData) error
	UpdateSubscriptionUsage(ctx context.Context, userID, groupID int64, cost float64) error
	InvalidateSubscriptionCache(ctx context.Context, userID, groupID int64) error
}