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path: root/internal/storage/events_test.go
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package storage

import (
	"encoding/json"
	"testing"
	"time"

	"github.com/thepeterstone/claudomator/internal/event"
	"github.com/thepeterstone/claudomator/internal/task"
)

// makeTaskForEvent creates a minimal task row so events can satisfy the FK.
func makeTaskForEvent(t *testing.T, db *DB, id string) {
	t.Helper()
	now := time.Now().UTC().Truncate(time.Second)
	tk := &task.Task{
		ID:        id,
		Name:      id,
		Agent:     task.AgentConfig{Type: "claude", Instructions: "noop"},
		Priority:  task.PriorityNormal,
		State:     task.StatePending,
		CreatedAt: now,
		UpdatedAt: now,
	}
	if err := db.CreateTask(tk); err != nil {
		t.Fatalf("creating task: %v", err)
	}
}

func TestCreateEvent_AssignsSeqAndDefaults(t *testing.T) {
	db := testDB(t)
	makeTaskForEvent(t, db, "task-1")

	e := &event.Event{
		TaskID: "task-1",
		Kind:   event.KindStateChange,
		Actor:  event.ActorSystem,
	}
	if err := db.CreateEvent(e); err != nil {
		t.Fatalf("CreateEvent: %v", err)
	}
	if e.ID == "" {
		t.Error("expected ID populated")
	}
	if e.Seq != 1 {
		t.Errorf("expected seq=1, got %d", e.Seq)
	}
	if e.Timestamp.IsZero() {
		t.Error("expected Timestamp populated")
	}
	if string(e.Payload) != "{}" {
		t.Errorf("expected default payload {}, got %s", e.Payload)
	}
}

func TestCreateEvent_SeqIsMonotonicPerTask(t *testing.T) {
	db := testDB(t)
	makeTaskForEvent(t, db, "task-A")
	makeTaskForEvent(t, db, "task-B")

	// 3 events on task-A, 2 on task-B, interleaved.
	for _, taskID := range []string{"task-A", "task-A", "task-B", "task-A", "task-B"} {
		e := &event.Event{
			TaskID: taskID,
			Kind:   event.KindAgentMessage,
			Actor:  event.ActorAgent,
		}
		if err := db.CreateEvent(e); err != nil {
			t.Fatalf("CreateEvent: %v", err)
		}
	}

	a, err := db.ListEvents("task-A", 0)
	if err != nil {
		t.Fatalf("ListEvents A: %v", err)
	}
	if len(a) != 3 {
		t.Fatalf("expected 3 events on task-A, got %d", len(a))
	}
	for i, e := range a {
		want := int64(i + 1)
		if e.Seq != want {
			t.Errorf("task-A event %d: seq=%d want %d", i, e.Seq, want)
		}
	}

	b, err := db.ListEvents("task-B", 0)
	if err != nil {
		t.Fatalf("ListEvents B: %v", err)
	}
	if len(b) != 2 {
		t.Fatalf("expected 2 events on task-B, got %d", len(b))
	}
	for i, e := range b {
		want := int64(i + 1)
		if e.Seq != want {
			t.Errorf("task-B event %d: seq=%d want %d", i, e.Seq, want)
		}
	}
}

func TestListEvents_SinceSeq(t *testing.T) {
	db := testDB(t)
	makeTaskForEvent(t, db, "task-1")

	for i := 0; i < 5; i++ {
		e := &event.Event{
			TaskID: "task-1",
			Kind:   event.KindAgentMessage,
			Actor:  event.ActorAgent,
		}
		if err := db.CreateEvent(e); err != nil {
			t.Fatalf("CreateEvent: %v", err)
		}
	}

	got, err := db.ListEvents("task-1", 3)
	if err != nil {
		t.Fatalf("ListEvents: %v", err)
	}
	if len(got) != 2 {
		t.Fatalf("expected 2 events with seq>3, got %d", len(got))
	}
	if got[0].Seq != 4 || got[1].Seq != 5 {
		t.Errorf("expected seqs 4,5; got %d,%d", got[0].Seq, got[1].Seq)
	}
}

func TestListEvents_PreservesPayloadAndKind(t *testing.T) {
	db := testDB(t)
	makeTaskForEvent(t, db, "task-1")

	payload := json.RawMessage(`{"question":"which env?","options":["dev","prod"]}`)
	written := &event.Event{
		TaskID:  "task-1",
		Kind:    event.KindClarificationRequest,
		Actor:   event.ActorAgent,
		Payload: payload,
	}
	if err := db.CreateEvent(written); err != nil {
		t.Fatalf("CreateEvent: %v", err)
	}

	got, err := db.ListEvents("task-1", 0)
	if err != nil {
		t.Fatalf("ListEvents: %v", err)
	}
	if len(got) != 1 {
		t.Fatalf("expected 1 event, got %d", len(got))
	}
	e := got[0]
	if e.Kind != event.KindClarificationRequest {
		t.Errorf("kind: got %v want %v", e.Kind, event.KindClarificationRequest)
	}
	if e.Actor != event.ActorAgent {
		t.Errorf("actor: got %v want %v", e.Actor, event.ActorAgent)
	}
	if string(e.Payload) != string(payload) {
		t.Errorf("payload: got %s want %s", e.Payload, payload)
	}
}

func TestCreateEvent_RequiresFields(t *testing.T) {
	db := testDB(t)

	cases := []struct {
		name string
		e    *event.Event
	}{
		{"nil", nil},
		{"empty taskID", &event.Event{Kind: event.KindAgentMessage, Actor: event.ActorAgent}},
		{"empty kind", &event.Event{TaskID: "t", Actor: event.ActorAgent}},
		{"empty actor", &event.Event{TaskID: "t", Kind: event.KindAgentMessage}},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			if err := db.CreateEvent(tc.e); err == nil {
				t.Errorf("expected error, got nil")
			}
		})
	}
}