package xiaomi

import "testing"

func TestFilterByHome(t *testing.T) {
	f := FilterByHome("home1")
	if !f(&DeviceInfo{HomeID: "home1"}) {
		t.Error("FilterByHome(home1) should match home1")
	}
	if f(&DeviceInfo{HomeID: "home2"}) {
		t.Error("FilterByHome(home1) should not match home2")
	}
	if f(&DeviceInfo{HomeID: ""}) {
		t.Error("FilterByHome(home1) should not match empty")
	}
}

func TestFilterByRoom(t *testing.T) {
	f := FilterByRoom("room1")
	if !f(&DeviceInfo{RoomID: "room1"}) {
		t.Error("FilterByRoom(room1) should match room1")
	}
	if f(&DeviceInfo{RoomID: "room2"}) {
		t.Error("FilterByRoom(room1) should not match room2")
	}
}

func TestFilterByOnline(t *testing.T) {
	f := FilterByOnline()
	if !f(&DeviceInfo{Online: true}) {
		t.Error("FilterByOnline should match online=true")
	}
	if f(&DeviceInfo{Online: false}) {
		t.Error("FilterByOnline should not match online=false")
	}
}

func TestFilterByModel(t *testing.T) {
	f := FilterByModel("xiaomi.light.v1")
	if !f(&DeviceInfo{Model: "xiaomi.light.v1"}) {
		t.Error("FilterByModel should match exact model")
	}
	if f(&DeviceInfo{Model: "xiaomi.light.v2"}) {
		t.Error("FilterByModel should not match different model")
	}
}

func TestDeviceFilterComposition(t *testing.T) {
	tests := []struct {
		name    string
		device  *DeviceInfo
		filters []DeviceFilter
		want    bool
	}{
		{
			"all pass",
			&DeviceInfo{HomeID: "home1", RoomID: "room1", Online: true},
			[]DeviceFilter{FilterByHome("home1"), FilterByRoom("room1"), FilterByOnline()},
			true,
		},
		{
			"one fails",
			&DeviceInfo{HomeID: "home1", RoomID: "room2", Online: true},
			[]DeviceFilter{FilterByHome("home1"), FilterByRoom("room1"), FilterByOnline()},
			false,
		},
		{
			"no filters",
			&DeviceInfo{HomeID: "home1"},
			nil,
			true, // empty filters = no-op
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			ok := true
			for _, f := range tt.filters {
				if !f(tt.device) {
					ok = false
					break
				}
			}
			if ok != tt.want {
				t.Errorf("got %v, want %v", ok, tt.want)
			}
		})
	}
}