1 files changed, 86 insertions, 0 deletions
diff --git a/api/graphql/schema/timeline.graphql b/api/graphql/schema/timeline.graphql
new file mode 100644
index 00000000..12462aa3
--- /dev/null
+++ b/api/graphql/schema/timeline.graphql
@@ -0,0 +1,86 @@
+"""An item in the timeline of events"""
+interface TimelineItem {
+    """The identifier of the source operation"""
+    id: String!
+}
+
+"""CommentHistoryStep hold one version of a message in the history"""
+type CommentHistoryStep {
+    message: String!
+    date: Time!
+}
+
+# Connection
+
+"""The connection type for TimelineItem"""
+type TimelineItemConnection {
+    edges: [TimelineItemEdge!]!
+    nodes: [TimelineItem!]!
+    pageInfo: PageInfo!
+    totalCount: Int!
+}
+
+"""Represent a TimelineItem"""
+type TimelineItemEdge {
+    cursor: String!
+    node: TimelineItem!
+}
+
+# Items
+
+"""CreateTimelineItem is a TimelineItem that represent the creation of a bug and its message edition history"""
+type CreateTimelineItem implements TimelineItem & Authored {
+    """The identifier of the source operation"""
+    id: String!
+    author: Identity!
+    message: String!
+    messageIsEmpty: Boolean!
+    files: [Hash!]!
+    createdAt: Time!
+    lastEdit: Time!
+    edited: Boolean!
+    history: [CommentHistoryStep!]!
+}
+
+"""AddCommentTimelineItem is a TimelineItem that represent a Comment and its edition history"""
+type AddCommentTimelineItem implements TimelineItem & Authored {
+    """The identifier of the source operation"""
+    id: String!
+    author: Identity!
+    message: String!
+    messageIsEmpty: Boolean!
+    files: [Hash!]!
+    createdAt: Time!
+    lastEdit: Time!
+    edited: Boolean!
+    history: [CommentHistoryStep!]!
+}
+
+"""LabelChangeTimelineItem is a TimelineItem that represent a change in the labels of a bug"""
+type LabelChangeTimelineItem implements TimelineItem & Authored {
+    """The identifier of the source operation"""
+    id: String!
+    author: Identity!
+    date: Time!
+    added: [Label!]!
+    removed: [Label!]!
+}
+
+"""SetStatusTimelineItem is a TimelineItem that represent a change in the status of a bug"""
+type SetStatusTimelineItem implements TimelineItem & Authored {
+    """The identifier of the source operation"""
+    id: String!
+    author: Identity!
+    date: Time!
+    status: Status!
+}
+
+"""LabelChangeTimelineItem is a TimelineItem that represent a change in the title of a bug"""
+type SetTitleTimelineItem implements TimelineItem & Authored {
+    """The identifier of the source operation"""
+    id: String!
+    author: Identity!
+    date: Time!
+    title: String!
+    was: String!
+}