package product

import (
	"context"
	"tyapi-server/internal/application/product/dto/commands"
	"tyapi-server/internal/application/product/dto/queries"
	"tyapi-server/internal/application/product/dto/responses"
)

// SubscriptionApplicationService 订阅应用服务接口
type SubscriptionApplicationService interface {
	// 订阅管理
	UpdateSubscriptionPrice(ctx context.Context, cmd *commands.UpdateSubscriptionPriceCommand) error

	// 订阅管理
	CreateSubscription(ctx context.Context, cmd *commands.CreateSubscriptionCommand) error
	GetSubscriptionByID(ctx context.Context, query *queries.GetSubscriptionQuery) (*responses.SubscriptionInfoResponse, error)
	ListSubscriptions(ctx context.Context, query *queries.ListSubscriptionsQuery) (*responses.SubscriptionListResponse, error)

	// 我的订阅（用户专用）
	ListMySubscriptions(ctx context.Context, userID string, query *queries.ListSubscriptionsQuery) (*responses.SubscriptionListResponse, error)
	GetMySubscriptionStats(ctx context.Context, userID string) (*responses.SubscriptionStatsResponse, error)

	// 业务查询
	GetUserSubscriptions(ctx context.Context, query *queries.GetUserSubscriptionsQuery) ([]*responses.SubscriptionInfoResponse, error)
	GetProductSubscriptions(ctx context.Context, query *queries.GetProductSubscriptionsQuery) ([]*responses.SubscriptionInfoResponse, error)
	GetSubscriptionUsage(ctx context.Context, subscriptionID string) (*responses.SubscriptionUsageResponse, error)

	// 统计
	GetSubscriptionStats(ctx context.Context) (*responses.SubscriptionStatsResponse, error)

	// 一键改价
	BatchUpdateSubscriptionPrices(ctx context.Context, cmd *commands.BatchUpdateSubscriptionPricesCommand) error
}