bug: add a new BugExerpt that hold a subset of a bug state for efficient sorting and retrieval

7 files changed, 40 insertions, 7 deletions

diff --git a/bug/bug.go b/bug/bug.go
index 1137ecfa..2c71d71b 100644
--- a/bug/bug.go
+++ b/bug/bug.go
@@ -579,6 +579,16 @@ func formatHumanId(id string) string {
 	return fmt.Sprintf(format, id)
 }
 
+// CreateLamportTime return the Lamport time of creation
+func (bug *Bug) CreateLamportTime() util.LamportTime {
+	return bug.createTime
+}
+
+// EditLamportTime return the Lamport time of the last edit
+func (bug *Bug) EditLamportTime() util.LamportTime {
+	return bug.editTime
+}
+
 // Lookup for the very first operation of the bug.
 // For a valid Bug, this operation should be a CreateOp
 func (bug *Bug) FirstOp() Operation {
diff --git a/bug/interface.go b/bug/interface.go
index af10b895..79333d07 100644
--- a/bug/interface.go
+++ b/bug/interface.go
@@ -2,6 +2,7 @@ package bug
 
 import (
 	"github.com/MichaelMure/git-bug/repository"
+	"github.com/MichaelMure/git-bug/util"
 )
 
 type Interface interface {
@@ -38,6 +39,12 @@ type Interface interface {
 
 	// Compile a bug in a easily usable snapshot
 	Compile() Snapshot
+
+	// CreateLamportTime return the Lamport time of creation
+	CreateLamportTime() util.LamportTime
+
+	// EditLamportTime return the Lamport time of the last edit
+	EditLamportTime() util.LamportTime
 }
 
 func bugFromInterface(bug Interface) *Bug {
diff --git a/bug/operation.go b/bug/operation.go
index cdf87931..7d71e352 100644
--- a/bug/operation.go
+++ b/bug/operation.go
@@ -23,6 +23,8 @@ type Operation interface {
 	OpType() OperationType
 	// Time return the time when the operation was added
 	Time() time.Time
+	// unixTime return the unix timestamp when the operation was added
+	UnixTime() int64
 	// Apply the operation to a Snapshot to create the final state
 	Apply(snapshot Snapshot) Snapshot
 	// Files return the files needed by this operation
@@ -36,7 +38,7 @@ type Operation interface {
 type OpBase struct {
 	OperationType OperationType
 	Author        Person
-	UnixTime      int64
+	unixTime      int64
 }
 
 // NewOpBase is the constructor for an OpBase
@@ -44,7 +46,7 @@ func NewOpBase(opType OperationType, author Person) OpBase {
 	return OpBase{
 		OperationType: opType,
 		Author:        author,
-		UnixTime:      time.Now().Unix(),
+		unixTime:      time.Now().Unix(),
 	}
 }
 
@@ -55,7 +57,12 @@ func (op OpBase) OpType() OperationType {
 
 // Time return the time when the operation was added
 func (op OpBase) Time() time.Time {
-	return time.Unix(op.UnixTime, 0)
+	return time.Unix(op.unixTime, 0)
+}
+
+// unixTime return the unix timestamp when the operation was added
+func (op OpBase) UnixTime() int64 {
+	return op.unixTime
 }
 
 // Files return the files needed by this operation
diff --git a/bug/operations/add_comment.go b/bug/operations/add_comment.go
index b4126a8e..5ecc471a 100644
--- a/bug/operations/add_comment.go
+++ b/bug/operations/add_comment.go
@@ -21,7 +21,7 @@ func (op AddCommentOperation) Apply(snapshot bug.Snapshot) bug.Snapshot {
 		Message:  op.Message,
 		Author:   op.Author,
 		Files:    op.files,
-		UnixTime: op.UnixTime,
+		UnixTime: op.UnixTime(),
 	}
 
 	snapshot.Comments = append(snapshot.Comments, comment)
diff --git a/bug/operations/create.go b/bug/operations/create.go
index ecbafb6f..5fc939dd 100644
--- a/bug/operations/create.go
+++ b/bug/operations/create.go
@@ -22,7 +22,7 @@ func (op CreateOperation) Apply(snapshot bug.Snapshot) bug.Snapshot {
 		{
 			Message:  op.Message,
 			Author:   op.Author,
-			UnixTime: op.UnixTime,
+			UnixTime: op.UnixTime(),
 		},
 	}
 	snapshot.Author = op.Author
diff --git a/bug/operations/create_test.go b/bug/operations/create_test.go
index a20472d3..319cdb7f 100644
--- a/bug/operations/create_test.go
+++ b/bug/operations/create_test.go
@@ -21,7 +21,7 @@ func TestCreate(t *testing.T) {
 	expected := bug.Snapshot{
 		Title: "title",
 		Comments: []bug.Comment{
-			{Author: rene, Message: "message", UnixTime: create.UnixTime},
+			{Author: rene, Message: "message", UnixTime: create.UnixTime()},
 		},
 		Author:    rene,
 		CreatedAt: create.Time(),
diff --git a/bug/snapshot.go b/bug/snapshot.go
index 7f1d6099..1ef4534b 100644
--- a/bug/snapshot.go
+++ b/bug/snapshot.go
@@ -37,10 +37,19 @@ func (snap Snapshot) Summary() string {
 }
 
 // Return the last time a bug was modified
-func (snap Snapshot) LastEdit() time.Time {
+func (snap Snapshot) LastEditTime() time.Time {
 	if len(snap.Operations) == 0 {
 		return time.Unix(0, 0)
 	}
 
 	return snap.Operations[len(snap.Operations)-1].Time()
 }
+
+// Return the last timestamp a bug was modified
+func (snap Snapshot) LastEditUnix() int64 {
+	if len(snap.Operations) == 0 {
+		return 0
+	}
+
+	return snap.Operations[len(snap.Operations)-1].UnixTime()
+}