bug: implement comment edition

- add a new operation
- add a new "timeline" in the snapshot that hold a processed version of the operations

1 files changed, 25 insertions, 5 deletions

diff --git a/bug/snapshot.go b/bug/snapshot.go
index 59dcae7e..df39ff46 100644
--- a/bug/snapshot.go
+++ b/bug/snapshot.go
@@ -3,6 +3,8 @@ package bug
 import (
 	"fmt"
 	"time"
+
+	"github.com/MichaelMure/git-bug/util/git"
 )
 
 // Snapshot is a compiled form of the Bug data structure used for storage and merge
@@ -16,20 +18,22 @@ type Snapshot struct {
 	Author    Person
 	CreatedAt time.Time
 
+	Timeline []TimelineItem
+
 	Operations []Operation
 }
 
 // Return the Bug identifier
-func (snap Snapshot) Id() string {
+func (snap *Snapshot) Id() string {
 	return snap.id
 }
 
 // Return the Bug identifier truncated for human consumption
-func (snap Snapshot) HumanId() string {
+func (snap *Snapshot) HumanId() string {
 	return fmt.Sprintf("%.8s", snap.id)
 }
 
-func (snap Snapshot) Summary() string {
+func (snap *Snapshot) Summary() string {
 	return fmt.Sprintf("C:%d L:%d",
 		len(snap.Comments)-1,
 		len(snap.Labels),
@@ -37,7 +41,7 @@ func (snap Snapshot) Summary() string {
 }
 
 // Return the last time a bug was modified
-func (snap Snapshot) LastEditTime() time.Time {
+func (snap *Snapshot) LastEditTime() time.Time {
 	if len(snap.Operations) == 0 {
 		return time.Unix(0, 0)
 	}
@@ -46,10 +50,26 @@ func (snap Snapshot) LastEditTime() time.Time {
 }
 
 // Return the last timestamp a bug was modified
-func (snap Snapshot) LastEditUnix() int64 {
+func (snap *Snapshot) LastEditUnix() int64 {
 	if len(snap.Operations) == 0 {
 		return 0
 	}
 
 	return snap.Operations[len(snap.Operations)-1].GetUnixTime()
 }
+
+// SearchTimelineItem will search in the timeline for an item matching the given hash
+func (snap *Snapshot) SearchTimelineItem(hash git.Hash) (TimelineItem, error) {
+	for i := range snap.Timeline {
+		h, err := snap.Timeline[i].Hash()
+		if err != nil {
+			return nil, err
+		}
+
+		if h == hash {
+			return snap.Timeline[i], nil
+		}
+	}
+
+	return nil, fmt.Errorf("timeline item not found")
+}