package web

import (
	"path/filepath"
	"testing"

	"github.com/yuanyuanxiang/SimpleRemoter/server/go/connection"
	"github.com/yuanyuanxiang/SimpleRemoter/server/go/devicehistory"
	"github.com/yuanyuanxiang/SimpleRemoter/server/go/hub"
)

func TestListDevicesWithOffline(t *testing.T) {
	h := hub.New()
	hist, err := devicehistory.Open(filepath.Join(t.TempDir(), "devices.json"), 100, nil)
	if err != nil {
		t.Fatalf("Open history: %v", err)
	}
	t.Cleanup(func() { _ = hist.Close() })
	h.Subscribe(hist)

	h.Register(&hub.Device{ID: "online", Name: "Online"},
		&connection.Context{RemoteAddr: "10.0.0.1:1000"})
	h.Register(&hub.Device{ID: "gone", Name: "Gone"},
		&connection.Context{RemoteAddr: "10.0.0.2:1000"})
	h.Unregister("gone")

	wh := &wsHub{devices: h, history: hist}
	got := wh.listDevicesWithOffline()
	if len(got) != 2 {
		t.Fatalf("devices = %d, want 2 (1 online + 1 offline)", len(got))
	}
	if got[0].ID != "online" || !got[0].Online {
		t.Fatalf("first = %+v, want online device", got[0])
	}
	if got[1].ID != "gone" || got[1].Online {
		t.Fatalf("second = %+v, want offline device", got[1])
	}
	if got[1].LastSeen == 0 {
		t.Fatal("offline device missing last_seen")
	}
}

func TestListDevicesWithoutHistoryIsOnlineOnly(t *testing.T) {
	h := hub.New()
	h.Register(&hub.Device{ID: "online", Name: "Online"},
		&connection.Context{RemoteAddr: "10.0.0.1:1000"})

	wh := &wsHub{devices: h}
	got := wh.listDevicesWithOffline()
	if len(got) != 1 || got[0].ID != "online" {
		t.Fatalf("devices = %+v, want just the online device", got)
	}
}