54 lines
2.0 KiB
Go
54 lines
2.0 KiB
Go
package canvas
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import (
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"infinite-canvas/backend/internal/assets"
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"infinite-canvas/backend/internal/model"
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"infinite-canvas/backend/internal/repository"
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)
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// Host 由组合根注入，避免 canvas → service 回环。
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type Host interface {
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EncryptSecret(value string) (string, error)
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DecryptSecret(value string) (string, error)
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OpenResourceRange(userID string, resource *model.Resource, rangeHeader string) (*assets.ResourceStream, error)
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PrepareResourceDelivery(userID string, resource *model.Resource, options assets.ResourceDeliveryOptions) (*assets.ResourceDelivery, error)
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WithStorageLock(fn func() error) error
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StructuredQuota(userID, kind string, creating bool, deltaBytes int64) error
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StructuredReplacementQuota(userID, kind string, count int, bytes int64) error
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DeleteUserAssetWithResources(userID, assetID string) error
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RecordActivity(userID, event string, count int)
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}
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type nopHost struct{}
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func (nopHost) EncryptSecret(value string) (string, error) { return value, nil }
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func (nopHost) DecryptSecret(value string) (string, error) { return value, nil }
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func (nopHost) OpenResourceRange(string, *model.Resource, string) (*assets.ResourceStream, error) {
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return nil, nil
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}
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func (nopHost) PrepareResourceDelivery(string, *model.Resource, assets.ResourceDeliveryOptions) (*assets.ResourceDelivery, error) {
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return nil, nil
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}
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func (nopHost) WithStorageLock(fn func() error) error {
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if fn == nil {
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return nil
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}
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return fn()
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}
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func (nopHost) StructuredQuota(string, string, bool, int64) error { return nil }
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func (nopHost) StructuredReplacementQuota(string, string, int, int64) error { return nil }
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func (nopHost) DeleteUserAssetWithResources(string, string) error { return nil }
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func (nopHost) RecordActivity(string, string, int) {}
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type Service struct {
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repo *repository.Repository
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host Host
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}
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func New(repo *repository.Repository, host Host) *Service {
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if host == nil {
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host = nopHost{}
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}
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return &Service{repo: repo, host: host}
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}
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