package cardsvc

import (
	core "agent-system-core"
	"testing"
)

func TestTaskProjectionPreservesUserReadingPreferences(t *testing.T) {
	st, svc, _ := openTest(t)
	c := core.ActivityCard{ID: "card-task", ProjectID: "p1", ConversationID: "c1", Title: "任务", Kind: core.CardKindProgress}
	c.Task = &core.TaskSnapshot{SchemaVersion: 1, TaskID: "t1", AttemptID: "a1", CardID: c.ID, ProjectID: "p1", ConversationID: "c1", OwnerInstanceID: "i1", StreamScope: "conversation:c1", Revision: 1, ExecutionState: "queued", OutcomeCompleteness: "none", DeliveryState: "pending", Title: "任务"}
	if _, e := svc.CreateTask("o", c, ""); e != nil {
		t.Fatal(e)
	}
	current, e := st.GetCard("o", c.ID)
	if e != nil {
		t.Fatal("task card not saved", e)
	}
	current.Pinned = true
	current.Status = core.CardDismissed
	if e = st.SaveCard("o", &current, ""); e != nil {
		t.Fatal(e)
	}
	next := *current.Task
	next.Revision = 2
	next.ExecutionState = "completed"
	next.Conclusion = "有用成果"
	if e = svc.CommitTask("o", next, 1); e != nil {
		t.Fatal(e)
	}
	got, e := st.GetCard("o", c.ID)
	if e != nil || !got.Pinned || got.Status != core.CardDismissed || got.Task.ExecutionState != "completed" {
		t.Fatal("work update stole user state", got, e)
	}
}

func TestTaskProjectionUserPinHasAtomicEventWatermark(t *testing.T) {
	st, svc, _ := openTest(t)
	c := core.ActivityCard{ID: "card-pin", ProjectID: "p1", ConversationID: "c1", Title: "任务", Kind: core.CardKindProgress}
	c.Task = &core.TaskSnapshot{SchemaVersion: 1, TaskID: "t1", AttemptID: "a1", CardID: c.ID, ProjectID: "p1", ConversationID: "c1", OwnerInstanceID: "i1", StreamScope: "conversation:c1", Revision: 1, ExecutionState: "queued", OutcomeCompleteness: "none", DeliveryState: "pending", Title: "任务"}
	if _, e := svc.CreateTask("o", c, ""); e != nil {
		t.Fatal(e)
	}
	if _, e := svc.SetPinned("o", c.ID, true); e != nil {
		t.Fatal(e)
	}
	snapshot, e := st.CardsAtCursor("o", "c1")
	if e != nil || snapshot.ReplaySeq != 2 || len(snapshot.Cards) != 1 || !snapshot.Cards[0].Pinned {
		t.Fatal("pin not atomically replayable", snapshot, e)
	}
}

func TestTaskProjectionCannotCreateSecondExecutionOwner(t *testing.T) {
	_, svc, _ := openTest(t)
	c := core.ActivityCard{ID: "card-archive", ProjectID: "p1", ConversationID: "c1", Title: "任务", Kind: core.CardKindProgress}
	c.Task = &core.TaskSnapshot{SchemaVersion: 1, TaskID: "t1", AttemptID: "a1", CardID: c.ID, ProjectID: "p1", ConversationID: "c1", OwnerInstanceID: "i1", StreamScope: "conversation:c1", Revision: 1, ExecutionState: "queued", OutcomeCompleteness: "none", DeliveryState: "pending", Title: "任务"}
	if _, e := svc.CreateTask("o", c, ""); e != nil {
		t.Fatal(e)
	}
	if _, e := svc.ToProject("o", c.ID); e == nil {
		t.Fatal("task was copied with a second execution owner")
	}
}