package memory

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

func TestFakeRecordThenRecentNewestFirstByKind(t *testing.T) {
	f := NewFake()
	ctx := context.Background()
	_ = f.Record(ctx, Event{Kind: "proposal_made", At: time.Unix(1, 0), Data: map[string]any{"n": "a"}})
	_ = f.Record(ctx, Event{Kind: "action_taken", At: time.Unix(2, 0)})
	_ = f.Record(ctx, Event{Kind: "proposal_made", At: time.Unix(3, 0), Data: map[string]any{"n": "b"}})

	got, err := f.Recent(ctx, "proposal_made", 5)
	if err != nil {
		t.Fatalf("Recent: %v", err)
	}
	if len(got) != 2 || got[0].Data["n"] != "b" {
		t.Fatalf("want newest-first [b,a], got %+v", got)
	}
}

func TestFakeRecentRespectsLimit(t *testing.T) {
	f := NewFake()
	ctx := context.Background()
	for i := 0; i < 4; i++ {
		_ = f.Record(ctx, Event{Kind: "proposal_made", At: time.Unix(int64(i), 0)})
	}
	got, _ := f.Recent(ctx, "proposal_made", 2)
	if len(got) != 2 {
		t.Fatalf("limit not honored: %d", len(got))
	}
}

func TestNopStoreIsInert(t *testing.T) {
	s := NewNop()
	if err := s.Record(context.Background(), Event{Kind: "x"}); err != nil {
		t.Fatalf("nop Record: %v", err)
	}
	got, err := s.Recent(context.Background(), "x", 5)
	if err != nil || len(got) != 0 {
		t.Fatalf("nop Recent = %+v, %v", got, err)
	}
}