package repository

import (
	"context"
	"time"

	"gateway/internal/model/member/domain/enum"
)

// OTPChallenge is persisted state for a single OTP issuance.
type OTPChallenge struct {
	TenantID string
	UID      string
	Purpose  enum.OTPPurpose
	Target   string
	CodeHash string
	Attempts int
}

// OTPChallengeStore stores OTP challenges (Redis).
type OTPChallengeStore interface {
	Save(ctx context.Context, challengeID string, ch *OTPChallenge, ttl time.Duration) error
	Get(ctx context.Context, challengeID string) (*OTPChallenge, error)
	// IncrementAttempts atomically increments failed-verify count; returns ErrChallengeNotFound when missing.
	IncrementAttempts(ctx context.Context, challengeID string) (int, error)
	Delete(ctx context.Context, challengeID string) error
}

// VerifyRateStore enforces resend cooldown and daily verification caps.
type VerifyRateStore interface {
	TryResendLock(ctx context.Context, key string, ttl time.Duration) (bool, error)
	IncrDaily(ctx context.Context, key string, ttl time.Duration) (int64, error)
}