package devices

import (
	"testing"

	"git.zeroonesoft.cn/golib/xiaomihome/miot"
	"git.zeroonesoft.cn/golib/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) {
	if ACModeCool != "cool" || ACModeHeat != "heat" || ACModeDry != "dry" || ACModeAuto != "auto" {
		t.Error("AC mode constants mismatch")
	}
}

func TestFanSpeedConstants(t *testing.T) {
	if ACFanLow != "low" || ACFanAuto != "auto" {
		t.Error("Fan speed constants mismatch")
	}
}

func TestSwingModeConstants(t *testing.T) {
	if ACSwingOff != "off" || ACSwingVertical != "vertical" {
		t.Error("Swing mode constants mismatch")
	}
}

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,
		},
		{
			"tofan-wk01 not fan", // "tofan" 含 "fan" 子串，不得误匹配 fan 系列
			"urn:miot-spec-v2:device:thermostat:0000A031:tofan-wk01:1:0000C822",
			[]string{"fan", "ceiling-fan", "ventilator", "air-fresh", "air-purifier"},
			false,
		},
		{
			"tofan-wk01 thermostat",
			"urn:miot-spec-v2:device:thermostat:0000A031:tofan-wk01:1:0000C822",
			[]string{"heater", "electric-blanket", "thermostat"},
			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")
	}
}

func TestServiceShortName(t *testing.T) {
	cases := []struct {
		urn  string
		want string
	}{
		{"urn:miot-spec-v2:service:thermostat:0000784A:tofan-wk01:1", "thermostat"},
		{"urn:miot-spec-v2:service:air-conditioner:0000780F:tofan-wk01:1", "air-conditioner"},
		{"urn:tofan-spec:service:adv-setting:00007801:tofan-wk01:1", "adv-setting"},
		{"urn:miot-spec-v2:property:on:00000006:tofan-wk01:1", "urn:miot-spec-v2:property:on:00000006:tofan-wk01:1"},
	}
	for _, c := range cases {
		if got := serviceShortName(c.urn); got != c.want {
			t.Errorf("serviceShortName(%q) = %q, want %q", c.urn, got, c.want)
		}
	}
}

func TestValMapperLevelFallback(t *testing.T) {
	// klwdz1.airc.001 场景：Auto + Level1~Level5
	vl := miot.MIoTSpecValueList{
		{Value: 0, Desc: "Auto"}, {Value: 1, Desc: "Level1"}, {Value: 2, Desc: "Level2"},
		{Value: 3, Desc: "Level3"}, {Value: 4, Desc: "Level4"}, {Value: 5, Desc: "Level5"},
	}
	vm := newValMapperLevel(vl)
	cases := []struct {
		name string
		want int
		ok   bool
	}{
		{"auto", 0, true}, {"Auto", 0, true},
		{"low", 1, true}, {"medium", 3, true}, {"high", 5, true},
		{"level3", 3, true},
	}
	for _, c := range cases {
		got, ok := vm.val(c.name)
		if ok != c.ok || (ok && got != c.want) {
			t.Errorf("val(%q) = (%d,%v), want (%d,%v)", c.name, got, ok, c.want, c.ok)
		}
	}
	// 反向解析（MQTT 上报值 → 语义枚举），与 val() 正向对称
	rname := []struct {
		v    int
		want string
	}{
		{0, "auto"}, {1, "low"}, {3, "medium"}, {5, "high"}, {2, "Level2"},
	}
	for _, c := range rname {
		if got := vm.name(c.v); got != c.want {
			t.Errorf("name(%d) = %q, want %q", c.v, got, c.want)
		}
	}
	// mode 枚举不受影响（无 low/medium/high fallback 副作用）
	mvl := miot.MIoTSpecValueList{
		{Value: 0, Desc: "Auto"}, {Value: 1, Desc: "Cool"}, {Value: 2, Desc: "Heat"},
	}
	mvm := newValMapper(mvl)
	if _, ok := mvm.val("low"); ok {
		t.Error("mode mapper should not resolve 'low'")
	}
	if v, ok := mvm.val("cool"); !ok || v != 1 {
		t.Errorf("mode val(cool) = (%d,%v), want (1,true)", v, ok)
	}
}