package main

import (
	"context"
	"strings"
	"testing"
	"time"

	"github.com/kami/maven/internal/ipc"
	"github.com/kami/maven/internal/memory"
	"github.com/kami/maven/internal/phraser"
	"github.com/kami/maven/internal/router"
	"github.com/kami/maven/internal/store"
	"github.com/kami/maven/internal/tool"
	"github.com/kami/maven/internal/voice"
)

func TestReactiveNotesReminders(t *testing.T) {
	ctx := context.Background()
	st := newTestStore(t)
	api := ipc.NewStoreAPI(st)
	now := time.Now()

	emb := router.NewHashEmbedder(1024)
	matcher := tool.NewMatcher(api)
	rtr := buildRouter(emb, matcher, 0.55, nil, nil)

	h := &reactiveHandler{
		api:       api,
		recall:    recallWiring{embedder: emb, memStore: memory.NewInMemoryStore()},
		router:    rtr,
		replier:   voice.NewStubReplier(),
		now:       func() time.Time { return now },
		dataStore: st,
	}

	t.Run("reminder capture", func(t *testing.T) {
		fireAt := now.Add(24 * time.Hour).Truncate(time.Millisecond)
		dec := router.Decision{
			Intent:    router.IntentReminder,
			Utterance: "напомни завтра позвонить маме",
			Slots: router.Slots{
				Text:    "завтра позвонить маме",
				Time:    fireAt,
				HasTime: true,
			},
		}
		// The confirmation is phrased from the row now (Vikunja #507), so it
		// names the stored hour rather than leaving the replier to read one
		// out of the sentence.
		reply := h.applyAction(ctx, dec)
		if want := "хорошо, напомню завтра в " + fireAt.Format("15:04") + "."; reply != want {
			t.Errorf("reply = %q, want %q", reply, want)
		}
		reminders, err := st.ListReminders(ctx, 10)
		if err != nil {
			t.Fatalf("ListReminders: %v", err)
		}
		if len(reminders) == 0 {
			t.Fatal("expected at least one reminder, got none")
		}
		last := reminders[0]
		if last.FireTs.UnixMilli() != fireAt.UnixMilli() {
			t.Errorf("reminder FireTs = %v, want %v", last.FireTs, fireAt)
		}
		if last.Status != "pending" {
			t.Errorf("reminder Status = %q, want pending", last.Status)
		}
	})

	t.Run("note capture", func(t *testing.T) {
		dec := router.Decision{
			Intent:    router.IntentNote,
			Utterance: "запомни что кофе закончился",
		}
		reply := h.applyAction(ctx, dec)
		if reply != "" {
			t.Errorf("expected empty reply from applyAction, got %q", reply)
		}
		notes, err := st.RecentNotes(ctx, 10)
		if err != nil {
			t.Fatalf("RecentNotes: %v", err)
		}
		if len(notes) == 0 {
			t.Fatal("expected at least one note, got none")
		}
		last := notes[0]
		if last.Text != "кофе закончился" {
			t.Errorf("note text = %q, want %q", last.Text, "кофе закончился")
		}
	})
}

// TestRunTurnExplicitNoteStoresOnlyTheBody pins the live failure end to end:
// a routed text turn reaches actionNote, stores only the dictated body in both
// durable and vector memory, and cannot ask the resident model to choose the
// acknowledgement's grammatical gender (V-721).
func TestRunTurnExplicitNoteStoresOnlyTheBody(t *testing.T) {
	ctx := context.Background()
	st := newTestStore(t)
	api := ipc.NewStoreAPI(st)
	now := time.Date(2026, 8, 15, 8, 0, 0, 0, time.FixedZone("+04", 4*60*60))
	emb := router.NewHashEmbedder(1024)
	mem := memory.NewInMemoryStore()
	rtr := router.New(router.Config{
		Grammars: []router.Grammar{{
			Name: "explicit-note-test",
			Decide: func(string) (router.Decision, bool) {
				return router.Decision{
					Stage: 0, Intent: router.IntentNote, Confidence: 1,
					// Deliberately hostile model slot: neither persistence nor
					// acknowledgement may use it.
					Slots: router.Slots{Text: "ты поедешь на дачу"},
				}, true
			},
		}},
		Threshold: 0.55,
	})
	model := &countingCompleter{out: `{"response":"Хорошо, сохранил.","mood":"neutral"}`}
	h := &reactiveHandler{
		api: api, router: rtr,
		recall:    recallWiring{embedder: emb, memStore: mem},
		replier:   newLLMReplier(model, nil),
		now:       func() time.Time { return now },
		dataStore: st,
	}

	const utterance = "запомни: запасной ключ лежит в синей коробке"
	if reply := h.runTurn(ctx, utterance, sourceText); reply != "сохранила заметку." {
		t.Fatalf("reply = %q, want the fixed feminine acknowledgement", reply)
	}
	if model.calls != 0 {
		t.Fatalf("resident model was called %d time(s) for a note acknowledgement", model.calls)
	}
	notes, err := st.RecentNotes(ctx, 10)
	if err != nil {
		t.Fatalf("RecentNotes: %v", err)
	}
	const body = "запасной ключ лежит в синей коробке"
	if len(notes) != 1 || notes[0].Text != body || notes[0].Source != "tap:voice" || !notes[0].Ts.Equal(now) {
		t.Fatalf("stored notes = %+v, want one exact body at the turn time", notes)
	}
	records, err := mem.ByPrefix(ctx, "note:")
	if err != nil {
		t.Fatalf("vector catalog: %v", err)
	}
	if len(records) != 1 || records[0].Meta["text"] != body {
		t.Fatalf("vector records = %+v, want the same extracted body", records)
	}
	if records[0].Meta["text"] == utterance || records[0].Meta["text"] == "ты поедешь на дачу" {
		t.Fatalf("vector metadata used a command or model rewrite: %+v", records[0].Meta)
	}
	if !phraser.IsAck(phraser.AckNote, nil, "сохранила заметку.") {
		t.Fatal("fixed acknowledgement is not registered as the note acknowledgement")
	}
}

// TestSpokenTaskCaptureFilesATask — the whole path, from the utterance to the
// task table. It went dead when the router started claiming the marker as an
// act: capture rides the note intent, so nothing below actionNote was ever
// reached and every capture answered "Что сделать?" (Vikunja #467).
func TestSpokenTaskCaptureFilesATask(t *testing.T) {
	ctx := context.Background()
	st := newTestStore(t)
	api := ipc.NewStoreAPI(st)
	now := time.Now()
	emb := router.NewHashEmbedder(1024)
	matcher := tool.NewMatcher(api)
	h := &reactiveHandler{
		api:       api,
		recall:    recallWiring{embedder: emb, memStore: memory.NewInMemoryStore()},
		router:    buildRouter(emb, matcher, 0.55, nil, nil),
		replier:   voice.NewStubReplier(),
		now:       func() time.Time { return now },
		dataStore: st,
	}

	reply := h.handleText(ctx, "web", "добавь в задачи купить молоко")
	if !strings.Contains(reply, "купить молоко") {
		t.Fatalf("capture did not claim the turn: %q", reply)
	}
	open, err := st.ListTasks(ctx, store.TaskOpen)
	if err != nil || len(open) != 1 {
		t.Fatalf("task was not filed: tasks=%v err=%v", open, err)
	}
	// The words he said, not the model's rewrite of them.
	if open[0].Text != "купить молоко" {
		t.Fatalf("task text was rewritten: %q", open[0].Text)
	}
}