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feat: record and expose timestamped unit events over the agent socket #27149

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feat: record and expose timestamped unit events over the agent socket #27149

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cab048c
feat(agent): record and expose timestamped unit events
SasSwart Jul 10, 2026
34e6342
refactor: rename unit event fields for clarity
SasSwart Jul 12, 2026
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49 changes: 49 additions & 0 deletions agent/agentsocket/client.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ package agentsocket

import (
"context"
"time"

"golang.org/x/xerrors"
"storj.io/drpc"
Expand Down Expand Up @@ -134,14 +135,48 @@ func (c *Client) SyncStatus(ctx context.Context, unitName unit.ID) (SyncStatusRe
})
}

var history []UnitEvent
for _, ev := range resp.History {
history = append(history, unitEventFromProto(ev))
}

return SyncStatusResponse{
UnitName: unitName,
Status: unit.Status(resp.Status),
IsReady: resp.IsReady,
Dependencies: dependencies,
History: history,
}, nil
}

// SyncTimeline returns the full event log of unit status transitions and
// dependency declarations across all units, ordered by sequence number.
func (c *Client) SyncTimeline(ctx context.Context) ([]UnitEvent, error) {
resp, err := c.client.SyncTimeline(ctx, &proto.SyncTimelineRequest{})
if err != nil {
return nil, err
}

events := make([]UnitEvent, 0, len(resp.Events))
for _, ev := range resp.Events {
events = append(events, unitEventFromProto(ev))
}
return events, nil
}

func unitEventFromProto(ev *proto.UnitEvent) UnitEvent {
return UnitEvent{
SequenceNumber: ev.GetSequenceNumber(),
Time: ev.GetTime().AsTime(),
Kind: unit.EventKind(ev.GetKind()),
UnitID: unit.ID(ev.GetUnitId()),
FromStatus: unit.Status(ev.GetFromStatus()),
ToStatus: unit.Status(ev.GetToStatus()),
DependsOnUnit: unit.ID(ev.GetDependsOnUnit()),
RequiredStatus: unit.Status(ev.GetRequiredStatus()),
}
}

// SyncList returns all registered units and their current statuses.
func (c *Client) SyncList(ctx context.Context) ([]SyncListItem, error) {
resp, err := c.client.SyncList(ctx, &proto.SyncListRequest{})
Expand Down Expand Up @@ -258,6 +293,7 @@ type SyncStatusResponse struct {
Status unit.Status `table:"status" json:"status"`
IsReady bool `table:"ready" json:"is_ready"`
Dependencies []DependencyInfo `table:"dependencies" json:"dependencies"`
History []UnitEvent `table:"history" json:"history"`
}

// SyncListItem contains summary information for a single unit.
Expand All @@ -275,6 +311,19 @@ type DependencyInfo struct {
IsSatisfied bool `table:"satisfied" json:"is_satisfied"`
}

// UnitEvent is an immutable record of a change to the dependency graph:
// either a unit status transition or a dependency declaration.
type UnitEvent struct {
SequenceNumber uint64 `table:"sequence_number,default_sort" json:"sequence_number"`
Time time.Time `table:"time" json:"time"`
Kind unit.EventKind `table:"kind" json:"kind"`
UnitID unit.ID `table:"unit" json:"unit_id"`
FromStatus unit.Status `table:"from" json:"from_status,omitempty"`
ToStatus unit.Status `table:"to" json:"to_status,omitempty"`
DependsOnUnit unit.ID `table:"depends on" json:"depends_on_unit,omitempty"`
RequiredStatus unit.Status `table:"required status" json:"required_status,omitempty"`
}

// ContextSource is a registered workspace-context scan root.
type ContextSource struct {
Path string `table:"path,default_sort" json:"path"`
Expand Down
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