package bug import ( "github.com/MichaelMure/git-bug/util/git" "github.com/pkg/errors" "fmt" "time" ) // OperationType is an operation type identifier type OperationType int const ( _ OperationType = iota CreateOp SetTitleOp AddCommentOp SetStatusOp LabelChangeOp ) // Operation define the interface to fulfill for an edit operation of a Bug type Operation interface { // OpType return the type of operation OpType() OperationType // Time return the time when the operation was added Time() time.Time // GetUnixTime return the unix timestamp when the operation was added GetUnixTime() int64 // GetAuthor return the author of the operation GetAuthor() Person // GetFiles return the files needed by this operation GetFiles() []git.Hash // Apply the operation to a Snapshot to create the final state Apply(snapshot Snapshot) Snapshot // Validate check if the operation is valid (ex: a title is a single line) Validate() error } // OpBase implement the common code for all operations type OpBase struct { OperationType OperationType `json:"type"` Author Person `json:"author"` UnixTime int64 `json:"timestamp"` } // NewOpBase is the constructor for an OpBase func NewOpBase(opType OperationType, author Person) OpBase { return OpBase{ OperationType: opType, Author: author, UnixTime: time.Now().Unix(), } } // OpType return the type of operation func (op OpBase) OpType() OperationType { return op.OperationType } // Time return the time when the operation was added func (op OpBase) Time() time.Time { return time.Unix(op.UnixTime, 0) } // GetUnixTime return the unix timestamp when the operation was added func (op OpBase) GetUnixTime() int64 { return op.UnixTime } // GetAuthor return the author of the operation func (op OpBase) GetAuthor() Person { return op.Author } // GetFiles return the files needed by this operation func (op OpBase) GetFiles() []git.Hash { return nil } // Validate check the OpBase for errors func OpBaseValidate(op Operation, opType OperationType) error { if op.OpType() != opType { return fmt.Errorf("incorrect operation type (expected: %v, actual: %v)", opType, op.OpType()) } if op.GetUnixTime() == 0 { return fmt.Errorf("time not set") } if err := op.GetAuthor().Validate(); err != nil { return errors.Wrap(err, "author") } for _, hash := range op.GetFiles() { if !hash.IsValid() { return fmt.Errorf("file with invalid hash %v", hash) } } return nil }