package sessions

import (
	"context"
	"errors"
	"testing"
	"time"

	"basicstack.de/proofedmesh/services/approval-service/internal/store"
)

func TestStartSession_UsesTTL(t *testing.T) {
	st := store.NewMemory()
	m := New(st)
	m.SessionTTL = 5 * time.Minute
	m.Now = func() time.Time { return time.Date(2026, 1, 1, 12, 0, 0, 0, time.UTC) }
	s, err := m.StartSession(context.Background(), "alice")
	if err != nil {
		t.Fatalf("StartSession: %v", err)
	}
	want := time.Date(2026, 1, 1, 12, 5, 0, 0, time.UTC)
	if !s.ActiveUntil.Equal(want) {
		t.Errorf("ActiveUntil = %v want %v", s.ActiveUntil, want)
	}
	if s.UserSub != "alice" {
		t.Errorf("UserSub = %q", s.UserSub)
	}
}

func TestGetActiveSession_WrongUser(t *testing.T) {
	st := store.NewMemory()
	m := New(st)
	m.Now = func() time.Time { return time.Date(2026, 1, 1, 12, 0, 0, 0, time.UTC) }
	s, err := m.StartSession(context.Background(), "alice")
	if err != nil {
		t.Fatalf("StartSession: %v", err)
	}
	_, err = m.GetActiveSession(context.Background(), s.ID, "bob")
	if !errors.Is(err, store.ErrNotFound) {
		t.Fatalf("want ErrNotFound, got %v", err)
	}
}

func TestGetActiveSession_Expired(t *testing.T) {
	st := store.NewMemory()
	m := New(st)
	m.SessionTTL = time.Minute
	t0 := time.Date(2026, 1, 1, 12, 0, 0, 0, time.UTC)
	m.Now = func() time.Time { return t0 }
	s, err := m.StartSession(context.Background(), "alice")
	if err != nil {
		t.Fatal(err)
	}
	m.Now = func() time.Time { return t0.Add(2 * time.Minute) }
	_, err = m.GetActiveSession(context.Background(), s.ID, "alice")
	if !errors.Is(err, ErrSessionExpired) {
		t.Fatalf("want ErrSessionExpired, got %v", err)
	}
}