diff options
Diffstat (limited to 'graphql/models')
| -rw-r--r-- | graphql/models/gen_models.go | 35 | ||||
| -rw-r--r-- | graphql/models/lazy_bug.go | 215 | ||||
| -rw-r--r-- | graphql/models/lazy_identity.go | 167 |
3 files changed, 399 insertions, 18 deletions
diff --git a/graphql/models/gen_models.go b/graphql/models/gen_models.go index 5498960b..b3e14655 100644 --- a/graphql/models/gen_models.go +++ b/graphql/models/gen_models.go @@ -8,7 +8,6 @@ import ( "strconv" "github.com/MichaelMure/git-bug/bug" - "github.com/MichaelMure/git-bug/identity" "github.com/MichaelMure/git-bug/util/git" ) @@ -34,7 +33,7 @@ type AddCommentPayload struct { // A unique identifier for the client performing the mutation. ClientMutationID *string `json:"clientMutationId"` // The affected bug. - Bug *bug.Snapshot `json:"bug"` + Bug BugWrapper `json:"bug"` // The resulting operation. Operation *bug.AddCommentOperation `json:"operation"` } @@ -42,8 +41,8 @@ type AddCommentPayload struct { // The connection type for Bug. type BugConnection struct { // A list of edges. - Edges []*BugEdge `json:"edges"` - Nodes []*bug.Snapshot `json:"nodes"` + Edges []*BugEdge `json:"edges"` + Nodes []BugWrapper `json:"nodes"` // Information to aid in pagination. PageInfo *PageInfo `json:"pageInfo"` // Identifies the total count of items in the connection. @@ -55,7 +54,7 @@ type BugEdge struct { // A cursor for use in pagination. Cursor string `json:"cursor"` // The item at the end of the edge. - Node *bug.Snapshot `json:"node"` + Node BugWrapper `json:"node"` } type ChangeLabelInput struct { @@ -75,7 +74,7 @@ type ChangeLabelPayload struct { // A unique identifier for the client performing the mutation. ClientMutationID *string `json:"clientMutationId"` // The affected bug. - Bug *bug.Snapshot `json:"bug"` + Bug BugWrapper `json:"bug"` // The resulting operation. Operation *bug.LabelChangeOperation `json:"operation"` // The effect each source label had. @@ -95,7 +94,7 @@ type CloseBugPayload struct { // A unique identifier for the client performing the mutation. ClientMutationID *string `json:"clientMutationId"` // The affected bug. - Bug *bug.Snapshot `json:"bug"` + Bug BugWrapper `json:"bug"` // The resulting operation. Operation *bug.SetStatusOperation `json:"operation"` } @@ -125,7 +124,7 @@ type CommitAsNeededPayload struct { // A unique identifier for the client performing the mutation. ClientMutationID *string `json:"clientMutationId"` // The affected bug. - Bug *bug.Snapshot `json:"bug"` + Bug BugWrapper `json:"bug"` } type CommitInput struct { @@ -141,19 +140,19 @@ type CommitPayload struct { // A unique identifier for the client performing the mutation. ClientMutationID *string `json:"clientMutationId"` // The affected bug. - Bug *bug.Snapshot `json:"bug"` + Bug BugWrapper `json:"bug"` } type IdentityConnection struct { - Edges []*IdentityEdge `json:"edges"` - Nodes []identity.Interface `json:"nodes"` - PageInfo *PageInfo `json:"pageInfo"` - TotalCount int `json:"totalCount"` + Edges []*IdentityEdge `json:"edges"` + Nodes []IdentityWrapper `json:"nodes"` + PageInfo *PageInfo `json:"pageInfo"` + TotalCount int `json:"totalCount"` } type IdentityEdge struct { - Cursor string `json:"cursor"` - Node identity.Interface `json:"node"` + Cursor string `json:"cursor"` + Node IdentityWrapper `json:"node"` } type LabelConnection struct { @@ -185,7 +184,7 @@ type NewBugPayload struct { // A unique identifier for the client performing the mutation. ClientMutationID *string `json:"clientMutationId"` // The created bug. - Bug *bug.Snapshot `json:"bug"` + Bug BugWrapper `json:"bug"` // The resulting operation. Operation *bug.CreateOperation `json:"operation"` } @@ -203,7 +202,7 @@ type OpenBugPayload struct { // A unique identifier for the client performing the mutation. ClientMutationID *string `json:"clientMutationId"` // The affected bug. - Bug *bug.Snapshot `json:"bug"` + Bug BugWrapper `json:"bug"` // The resulting operation. Operation *bug.SetStatusOperation `json:"operation"` } @@ -249,7 +248,7 @@ type SetTitlePayload struct { // A unique identifier for the client performing the mutation. ClientMutationID *string `json:"clientMutationId"` // The affected bug. - Bug *bug.Snapshot `json:"bug"` + Bug BugWrapper `json:"bug"` // The resulting operation Operation *bug.SetTitleOperation `json:"operation"` } diff --git a/graphql/models/lazy_bug.go b/graphql/models/lazy_bug.go new file mode 100644 index 00000000..6034e80d --- /dev/null +++ b/graphql/models/lazy_bug.go @@ -0,0 +1,215 @@ +package models + +import ( + "sync" + "time" + + "github.com/MichaelMure/git-bug/bug" + "github.com/MichaelMure/git-bug/cache" + "github.com/MichaelMure/git-bug/entity" +) + +// BugWrapper is an interface used by the GraphQL resolvers to handle a bug. +// Depending on the situation, a Bug can already be fully loaded in memory or not. +// This interface is used to wrap either a lazyBug or a loadedBug depending on the situation. +type BugWrapper interface { + Id() entity.Id + LastEdit() time.Time + Status() bug.Status + Title() string + Comments() ([]bug.Comment, error) + Labels() []bug.Label + Author() (IdentityWrapper, error) + Actors() ([]IdentityWrapper, error) + Participants() ([]IdentityWrapper, error) + CreatedAt() time.Time + Timeline() ([]bug.TimelineItem, error) + Operations() ([]bug.Operation, error) + + IsAuthored() +} + +var _ BugWrapper = &lazyBug{} + +// lazyBug is a lazy-loading wrapper that fetch data from the cache (BugExcerpt) in priority, +// and load the complete bug and snapshot only when necessary. +type lazyBug struct { + cache *cache.RepoCache + excerpt *cache.BugExcerpt + + mu sync.Mutex + snap *bug.Snapshot +} + +func NewLazyBug(cache *cache.RepoCache, excerpt *cache.BugExcerpt) *lazyBug { + return &lazyBug{ + cache: cache, + excerpt: excerpt, + } +} + +func (lb *lazyBug) load() error { + if lb.snap != nil { + return nil + } + + lb.mu.Lock() + defer lb.mu.Unlock() + + b, err := lb.cache.ResolveBug(lb.excerpt.Id) + if err != nil { + return err + } + + lb.snap = b.Snapshot() + return nil +} + +func (lb *lazyBug) identity(id entity.Id) (IdentityWrapper, error) { + i, err := lb.cache.ResolveIdentityExcerpt(id) + if err != nil { + return nil, err + } + return &lazyIdentity{cache: lb.cache, excerpt: i}, nil +} + +// Sign post method for gqlgen +func (lb *lazyBug) IsAuthored() {} + +func (lb *lazyBug) Id() entity.Id { + return lb.excerpt.Id +} + +func (lb *lazyBug) LastEdit() time.Time { + return time.Unix(lb.excerpt.EditUnixTime, 0) +} + +func (lb *lazyBug) Status() bug.Status { + return lb.excerpt.Status +} + +func (lb *lazyBug) Title() string { + return lb.excerpt.Title +} + +func (lb *lazyBug) Comments() ([]bug.Comment, error) { + err := lb.load() + if err != nil { + return nil, err + } + return lb.snap.Comments, nil +} + +func (lb *lazyBug) Labels() []bug.Label { + return lb.excerpt.Labels +} + +func (lb *lazyBug) Author() (IdentityWrapper, error) { + return lb.identity(lb.excerpt.AuthorId) +} + +func (lb *lazyBug) Actors() ([]IdentityWrapper, error) { + result := make([]IdentityWrapper, len(lb.excerpt.Actors)) + for i, actorId := range lb.excerpt.Actors { + actor, err := lb.identity(actorId) + if err != nil { + return nil, err + } + result[i] = actor + } + return result, nil +} + +func (lb *lazyBug) Participants() ([]IdentityWrapper, error) { + result := make([]IdentityWrapper, len(lb.excerpt.Participants)) + for i, participantId := range lb.excerpt.Participants { + participant, err := lb.identity(participantId) + if err != nil { + return nil, err + } + result[i] = participant + } + return result, nil +} + +func (lb *lazyBug) CreatedAt() time.Time { + return time.Unix(lb.excerpt.CreateUnixTime, 0) +} + +func (lb *lazyBug) Timeline() ([]bug.TimelineItem, error) { + err := lb.load() + if err != nil { + return nil, err + } + return lb.snap.Timeline, nil +} + +func (lb *lazyBug) Operations() ([]bug.Operation, error) { + err := lb.load() + if err != nil { + return nil, err + } + return lb.snap.Operations, nil +} + +var _ BugWrapper = &loadedBug{} + +type loadedBug struct { + *bug.Snapshot +} + +func NewLoadedBug(snap *bug.Snapshot) *loadedBug { + return &loadedBug{Snapshot: snap} +} + +func (l *loadedBug) LastEdit() time.Time { + return l.Snapshot.LastEditTime() +} + +func (l *loadedBug) Status() bug.Status { + return l.Snapshot.Status +} + +func (l *loadedBug) Title() string { + return l.Snapshot.Title +} + +func (l *loadedBug) Comments() ([]bug.Comment, error) { + return l.Snapshot.Comments, nil +} + +func (l *loadedBug) Labels() []bug.Label { + return l.Snapshot.Labels +} + +func (l *loadedBug) Author() (IdentityWrapper, error) { + return NewLoadedIdentity(l.Snapshot.Author), nil +} + +func (l *loadedBug) Actors() ([]IdentityWrapper, error) { + res := make([]IdentityWrapper, len(l.Snapshot.Actors)) + for i, actor := range l.Snapshot.Actors { + res[i] = NewLoadedIdentity(actor) + } + return res, nil +} + +func (l *loadedBug) Participants() ([]IdentityWrapper, error) { + res := make([]IdentityWrapper, len(l.Snapshot.Participants)) + for i, participant := range l.Snapshot.Participants { + res[i] = NewLoadedIdentity(participant) + } + return res, nil +} + +func (l *loadedBug) CreatedAt() time.Time { + return l.Snapshot.CreatedAt +} + +func (l *loadedBug) Timeline() ([]bug.TimelineItem, error) { + return l.Snapshot.Timeline, nil +} + +func (l *loadedBug) Operations() ([]bug.Operation, error) { + return l.Snapshot.Operations, nil +} diff --git a/graphql/models/lazy_identity.go b/graphql/models/lazy_identity.go new file mode 100644 index 00000000..bbd36be3 --- /dev/null +++ b/graphql/models/lazy_identity.go @@ -0,0 +1,167 @@ +package models + +import ( + "fmt" + "sync" + + "github.com/MichaelMure/git-bug/cache" + "github.com/MichaelMure/git-bug/entity" + "github.com/MichaelMure/git-bug/identity" + "github.com/MichaelMure/git-bug/util/lamport" + "github.com/MichaelMure/git-bug/util/timestamp" +) + +// IdentityWrapper is an interface used by the GraphQL resolvers to handle an identity. +// Depending on the situation, an Identity can already be fully loaded in memory or not. +// This interface is used to wrap either a lazyIdentity or a loadedIdentity depending on the situation. +type IdentityWrapper interface { + Id() entity.Id + Name() string + Email() (string, error) + AvatarUrl() (string, error) + Keys() ([]*identity.Key, error) + ValidKeysAtTime(time lamport.Time) ([]*identity.Key, error) + DisplayName() string + IsProtected() (bool, error) + LastModificationLamport() (lamport.Time, error) + LastModification() (timestamp.Timestamp, error) +} + +var _ IdentityWrapper = &lazyIdentity{} + +type lazyIdentity struct { + cache *cache.RepoCache + excerpt *cache.IdentityExcerpt + + mu sync.Mutex + id *cache.IdentityCache +} + +func NewLazyIdentity(cache *cache.RepoCache, excerpt *cache.IdentityExcerpt) *lazyIdentity { + return &lazyIdentity{ + cache: cache, + excerpt: excerpt, + } +} + +func (li *lazyIdentity) load() (*cache.IdentityCache, error) { + if li.id != nil { + return li.id, nil + } + + li.mu.Lock() + defer li.mu.Unlock() + + id, err := li.cache.ResolveIdentity(li.excerpt.Id) + if err != nil { + return nil, fmt.Errorf("cache: missing identity %v", li.excerpt.Id) + } + li.id = id + return id, nil +} + +func (li *lazyIdentity) Id() entity.Id { + return li.excerpt.Id +} + +func (li *lazyIdentity) Name() string { + return li.excerpt.Name +} + +func (li *lazyIdentity) Email() (string, error) { + id, err := li.load() + if err != nil { + return "", err + } + return id.Email(), nil +} + +func (li *lazyIdentity) AvatarUrl() (string, error) { + id, err := li.load() + if err != nil { + return "", err + } + return id.AvatarUrl(), nil +} + +func (li *lazyIdentity) Keys() ([]*identity.Key, error) { + id, err := li.load() + if err != nil { + return nil, err + } + return id.Keys(), nil +} + +func (li *lazyIdentity) ValidKeysAtTime(time lamport.Time) ([]*identity.Key, error) { + id, err := li.load() + if err != nil { + return nil, err + } + return id.ValidKeysAtTime(time), nil +} + +func (li *lazyIdentity) DisplayName() string { + return li.excerpt.DisplayName() +} + +func (li *lazyIdentity) IsProtected() (bool, error) { + id, err := li.load() + if err != nil { + return false, err + } + return id.IsProtected(), nil +} + +func (li *lazyIdentity) LastModificationLamport() (lamport.Time, error) { + id, err := li.load() + if err != nil { + return 0, err + } + return id.LastModificationLamport(), nil +} + +func (li *lazyIdentity) LastModification() (timestamp.Timestamp, error) { + id, err := li.load() + if err != nil { + return 0, err + } + return id.LastModification(), nil +} + +var _ IdentityWrapper = &loadedIdentity{} + +type loadedIdentity struct { + identity.Interface +} + +func NewLoadedIdentity(id identity.Interface) *loadedIdentity { + return &loadedIdentity{Interface: id} +} + +func (l loadedIdentity) Email() (string, error) { + return l.Interface.Email(), nil +} + +func (l loadedIdentity) AvatarUrl() (string, error) { + return l.Interface.AvatarUrl(), nil +} + +func (l loadedIdentity) Keys() ([]*identity.Key, error) { + return l.Interface.Keys(), nil +} + +func (l loadedIdentity) ValidKeysAtTime(time lamport.Time) ([]*identity.Key, error) { + return l.Interface.ValidKeysAtTime(time), nil +} + +func (l loadedIdentity) IsProtected() (bool, error) { + return l.Interface.IsProtected(), nil +} + +func (l loadedIdentity) LastModificationLamport() (lamport.Time, error) { + return l.Interface.LastModificationLamport(), nil +} + +func (l loadedIdentity) LastModification() (timestamp.Timestamp, error) { + return l.Interface.LastModification(), nil +} |