package devices

import (
	"testing"

	"xiaomihome/xiaomi"
)

func TestToInt(t *testing.T) {
	tests := []struct {
		name  string
		value interface{}
		want  int
	}{
		{"float64", float64(42), 42},
		{"int", int(42), 42},
		{"int64", int64(42), 42},
		{"uint8", uint8(100), 100},
		{"uint16", uint16(1000), 1000},
		{"nil", nil, 0},
		{"string", "hello", 0},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := toInt(tt.value)
			if got != tt.want {
				t.Errorf("toInt(%v) = %d, want %d", tt.value, got, tt.want)
			}
		})
	}
}

func TestToFloat(t *testing.T) {
	tests := []struct {
		name  string
		value interface{}
		want  float64
	}{
		{"float64", float64(26.5), 26.5},
		{"float32", float32(30.0), 30.0},
		{"int", int(25), 25.0},
		{"int64", int64(20), 20.0},
		{"string", "26.5", 0.0},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := toFloat(tt.value)
			if got != tt.want {
				t.Errorf("toFloat(%v) = %f, want %f", tt.value, got, tt.want)
			}
		})
	}
}

func TestAirConditionerModeConstants(t *testing.T) {
	// Verify all mode values have reverse mappings
	for _, m := range []ACMode{ModeCool, ModeHeat, ModeFan, ModeDry, ModeAuto} {
		if _, ok := modeReverseMap[m]; !ok {
			t.Errorf("missing reverse mapping for %s", m)
		}
	}

	// Verify all value entries map back correctly
	for v, m := range modeValueMap {
		if r, ok := modeReverseMap[m]; !ok || r != v {
			t.Errorf("modeReverseMap[modeValueMap[%d]] = %v, want %d", v, r, v)
		}
	}
}

func TestFanSpeedConstants(t *testing.T) {
	for _, s := range []FanSpeed{SpeedLow, SpeedMedium, SpeedHigh, SpeedAuto} {
		if _, ok := fanSpeedReverseMap[s]; !ok {
			t.Errorf("missing reverse mapping for %s", s)
		}
	}
}

func TestSwingModeConstants(t *testing.T) {
	for _, s := range []SwingMode{SwingOff, SwingVertical, SwingHorizontal, SwingBoth} {
		if _, ok := swingReverseMap[s]; !ok {
			t.Errorf("missing reverse mapping for %s", s)
		}
	}
}

func TestMatchURN(t *testing.T) {
	tests := []struct {
		name  string
		urn   string
		types []string
		want  bool
	}{
		{
			"air-conditioner",
			"urn:miot-spec-v2:device:air-conditioner:0000A004:xiaomi-c1:1",
			[]string{"air-conditioner"},
			true,
		},
		{
			"light",
			"urn:miot-spec-v2:device:light:0000A001:philips-bulb:1",
			[]string{"light"},
			true,
		},
		{
			"switch outlet",
			"urn:miot-spec-v2:device:outlet:0000A002:xiaomi-plug:1",
			[]string{"switch", "outlet"},
			true,
		},
		{
			"fan",
			"urn:miot-spec-v2:device:fan:0000A003:xiaomi-fan:1",
			[]string{"fan"},
			true,
		},
		{
			"curtain",
			"urn:miot-spec-v2:device:curtain:0000A005:aqara-c1:1",
			[]string{"curtain"},
			true,
		},
		{
			"humidifier",
			"urn:miot-spec-v2:device:humidifier:0000A006:xiaomi-h1:1",
			[]string{"humidifier"},
			true,
		},
		{
			"vacuum",
			"urn:miot-spec-v2:device:vacuum:0000A007:roborock-s5:1",
			[]string{"vacuum"},
			true,
		},
		{
			"water-heater",
			"urn:miot-spec-v2:device:water-heater:0000A008:xiaomi-wh1:1",
			[]string{"water-heater"},
			true,
		},
		{
			"heater thermostat",
			"urn:miot-spec-v2:device:heater:0000A009:xiaomi-h1:1",
			[]string{"heater"},
			true,
		},
		{
			"no match",
			"urn:miot-spec-v2:device:unknown:0000A099:test:1",
			[]string{"air-conditioner", "light", "switch"},
			false,
		},
		{
			"empty URN",
			"",
			[]string{"light"},
			false,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := matchURN(tt.urn, tt.types...)
			if got != tt.want {
				t.Errorf("matchURN(%q, %v) = %v, want %v", tt.urn, tt.types, got, tt.want)
			}
		})
	}
}

func TestFactoryNilClientPanic(t *testing.T) {
	// Create with a nil client should panic (calling methods on nil client)
	// This is a documentation test noting expected behavior
	t.Skip("requires real or mock client")
}

func TestCreateNilInfo(t *testing.T) {
	client := &xiaomi.Client{}
	result, err := Create(client, nil)
	if result != nil {
		t.Errorf("expected nil result, got %v", result)
	}
	if err == nil {
		t.Error("expected error for nil info")
	}
}