core/subscriptions/subscriptions.go

package subscriptions

import (
	"context"
	"time"

	"github.com/google/uuid"
)

// Subscriptions provides subscription tier and billing plan access for plugins.
type Subscriptions interface {
	GetUserTierLevel(ctx context.Context, userID uuid.UUID) (*TierLevel, error)
	GetTierBySlug(ctx context.Context, slug string) (*Tier, error)
	ListActivePlans(ctx context.Context, tierID uuid.UUID) ([]Plan, error)
}

// TierLevel is the resolved tier for a user.
type TierLevel struct {
	Level    int
	Features []byte
}

// Tier is a subscription tier definition.
type Tier struct {
	ID          uuid.UUID
	Name        string
	Slug        string
	Level       int
	Description string
	Features    []byte
	IsDefault   bool
	Position    int
}

// Plan is an active billing plan within a tier.
type Plan struct {
	ID              uuid.UUID
	TierID          uuid.UUID
	BillingInterval string
	Amount          int32
	Currency        string
	IsActive        bool
	CreatedAt       time.Time
}