package store

import (
	"context"
	"testing"
	"time"
)

func TestRoutingTraceRoundTrip(t *testing.T) {
	s := newTestStore(t)
	ctx := context.Background()
	now := time.Date(2026, 8, 6, 12, 0, 0, 0, time.UTC)

	in := RoutingTrace{
		Ts:                now,
		Utterance:         "напомни в 11:00 позвонить маме",
		Source:            "tap:voice",
		Winner:            "stage0:reminder-grammar",
		Intent:            "reminder",
		ClaimedBeforeHead: true,
		EncoderID:         "e5-small",
		Outcome:           "reminder",
		Claims:            []byte(`[{"stage":"stage0","claimant":"reminder-grammar","outcome":"won"}]`),
	}
	if _, err := s.WriteRoutingTrace(ctx, in); err != nil {
		t.Fatal(err)
	}
	got, err := s.RecentRoutingTraces(ctx, 10)
	if err != nil {
		t.Fatal(err)
	}
	if len(got) != 1 {
		t.Fatalf("got %d traces, want 1", len(got))
	}
	// The utterance is stored in clear on purpose: a vector is not redaction.
	if got[0].Utterance != in.Utterance {
		t.Errorf("utterance %q, want %q", got[0].Utterance, in.Utterance)
	}
	if !got[0].ClaimedBeforeHead {
		t.Error("claimed_before_head lost, and V-632 needs exactly that share")
	}
	if got[0].EncoderID != in.EncoderID {
		t.Errorf("encoder_id %q, want %q", got[0].EncoderID, in.EncoderID)
	}
	if string(got[0].Claims) != string(in.Claims) {
		t.Errorf("claims %s, want %s", got[0].Claims, in.Claims)
	}
	if got[0].Correction != "" {
		t.Errorf("correction %q on an uncorrected turn", got[0].Correction)
	}
}

// The bound is an age, not a row count: the useful question is what she did this
// week, and a busy Tuesday must not push last Friday out.
func TestPruneRoutingTracesByAge(t *testing.T) {
	s := newTestStore(t)
	ctx := context.Background()
	now := time.Date(2026, 8, 6, 12, 0, 0, 0, time.UTC)

	for _, age := range []time.Duration{0, 13 * 24 * time.Hour, 15 * 24 * time.Hour} {
		if _, err := s.WriteRoutingTrace(ctx, RoutingTrace{Ts: now.Add(-age), Utterance: "привет"}); err != nil {
			t.Fatal(err)
		}
	}
	if err := s.PruneRoutingTraces(ctx, now.Add(-RoutingTraceRetention)); err != nil {
		t.Fatal(err)
	}
	got, err := s.RecentRoutingTraces(ctx, 10)
	if err != nil {
		t.Fatal(err)
	}
	if len(got) != 2 {
		t.Fatalf("kept %d traces, want the two inside 14 days", len(got))
	}
}