any-sync/common/commonspace/service.go

package commonspace

import (
	"context"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/account"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/app"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/app/logger"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/commonspace/diffservice"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/commonspace/spacesyncproto"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/commonspace/statusservice"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/commonspace/storage"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/commonspace/syncservice"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/commonspace/treegetter"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/config"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/net/peer"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/net/pool"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/nodeconf"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/pkg/acl/aclrecordproto"
	"github.com/anytypeio/go-anytype-infrastructure-experiments/common/pkg/acl/treechangeproto"
)

const CName = "common.commonspace"

var log = logger.NewNamed(CName)

func New() Service {
	return &service{}
}

type ctxKey int

const AddSpaceCtxKey ctxKey = 0

type Service interface {
	DeriveSpace(ctx context.Context, payload SpaceDerivePayload) (string, error)
	CreateSpace(ctx context.Context, payload SpaceCreatePayload) (string, error)
	NewSpace(ctx context.Context, id string) (sp Space, err error)
	app.Component
}

type service struct {
	config               config.Space
	account              account.Service
	configurationService nodeconf.Service
	storageProvider      storage.SpaceStorageProvider
	treeGetter           treegetter.TreeGetter
	pool                 pool.Pool
}

func (s *service) Init(a *app.App) (err error) {
	s.config = a.MustComponent(config.CName).(*config.Config).Space
	s.account = a.MustComponent(account.CName).(account.Service)
	s.storageProvider = a.MustComponent(storage.CName).(storage.SpaceStorageProvider)
	s.configurationService = a.MustComponent(nodeconf.CName).(nodeconf.Service)
	s.treeGetter = a.MustComponent(treegetter.CName).(treegetter.TreeGetter)
	s.pool = a.MustComponent(pool.CName).(pool.Pool)
	return nil
}

func (s *service) Name() (name string) {
	return CName
}

func (s *service) CreateSpace(ctx context.Context, payload SpaceCreatePayload) (id string, err error) {
	storageCreate, err := storagePayloadForSpaceCreate(payload)
	if err != nil {
		return
	}
	store, err := s.storageProvider.CreateSpaceStorage(storageCreate)
	if err != nil {
		return
	}

	return store.Id(), nil
}

func (s *service) DeriveSpace(ctx context.Context, payload SpaceDerivePayload) (id string, err error) {
	storageCreate, err := storagePayloadForSpaceDerive(payload)
	if err != nil {
		return
	}
	store, err := s.storageProvider.CreateSpaceStorage(storageCreate)
	if err != nil {
		return
	}

	return store.Id(), nil
}

func (s *service) NewSpace(ctx context.Context, id string) (Space, error) {
	st, err := s.storageProvider.SpaceStorage(id)
	if err != nil {
		if err != storage.ErrSpaceStorageMissing {
			return nil, err
		}

		if description, ok := ctx.Value(AddSpaceCtxKey).(SpaceDescription); ok {
			st, err = s.addSpaceStorage(ctx, description)
			if err != nil {
				return nil, err
			}
		} else {
			st, err = s.getSpaceStorageFromRemote(ctx, id)
			if err != nil {
				return nil, err
			}
		}
	}

	lastConfiguration := s.configurationService.GetLast()
	confConnector := nodeconf.NewConfConnector(lastConfiguration, s.pool)

	var statusService statusservice.StatusService
	// this will work only for clients, not the best solution, but...
	// TODO: maybe change this to dependency injection where we would inject the method `ProvideStatusService`
	//  and for nodes there would be NoOpStatusService
	if !lastConfiguration.IsResponsible(st.Id()) {
		statusService = statusservice.NewStatusService(st.Id(), lastConfiguration)
	}

	diffService := diffservice.NewDiffService(id, s.config.SyncPeriod, st, confConnector, s.treeGetter, log)
	syncService := syncservice.NewSyncService(id, confConnector, s.config.SyncPeriod)
	sp := &space{
		id:            id,
		syncService:   syncService,
		diffService:   diffService,
		statusService: statusService,
		cache:         s.treeGetter,
		account:       s.account,
		configuration: lastConfiguration,
		storage:       st,
	}
	return sp, nil
}

func (s *service) addSpaceStorage(ctx context.Context, spaceDescription SpaceDescription) (st storage.SpaceStorage, err error) {
	payload := storage.SpaceStorageCreatePayload{
		AclWithId: &aclrecordproto.RawACLRecordWithId{
			Payload: spaceDescription.AclPayload,
			Id:      spaceDescription.AclId,
		},
		SpaceHeaderWithId: spaceDescription.SpaceHeader,
		SpaceSettingsWithId: &treechangeproto.RawTreeChangeWithId{
			RawChange: spaceDescription.SpaceSettingsPayload,
			Id:        spaceDescription.SpaceSettingsId,
		},
	}
	st, err = s.storageProvider.CreateSpaceStorage(payload)
	if err != nil {
		err = spacesyncproto.ErrUnexpected
		if err == storage.ErrSpaceStorageExists {
			err = spacesyncproto.ErrSpaceExists
		}
		return
	}
	return
}

func (s *service) getSpaceStorageFromRemote(ctx context.Context, id string) (st storage.SpaceStorage, err error) {
	var p peer.Peer
	lastConfiguration := s.configurationService.GetLast()
	// we can't connect to client if it is a node
	if lastConfiguration.IsResponsible(id) {
		err = spacesyncproto.ErrSpaceMissing
		return
	}

	p, err = s.pool.DialOneOf(ctx, lastConfiguration.NodeIds(id))
	if err != nil {
		return
	}

	cl := spacesyncproto.NewDRPCSpaceClient(p)
	res, err := cl.PullSpace(ctx, &spacesyncproto.PullSpaceRequest{Id: id})
	if err != nil {
		return
	}

	st, err = s.storageProvider.CreateSpaceStorage(storage.SpaceStorageCreatePayload{
		AclWithId: &aclrecordproto.RawACLRecordWithId{
			Payload: res.Payload.AclPayload,
			Id:      res.Payload.AclPayloadId,
		},
		SpaceSettingsWithId: &treechangeproto.RawTreeChangeWithId{
			RawChange: res.Payload.SpaceSettingsPayload,
			Id:        res.Payload.SpaceSettingsPayloadId,
		},
		SpaceHeaderWithId: res.Payload.SpaceHeader,
	})
	return
}