/*
   Copyright 2023 Josh Deprez

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

	   http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

package plugctl

import (
	"bytes"
	"crypto/rand"
	"encoding/base64"
	"io"
	"testing"
)

func TestDecrypt(t *testing.T) {
	// on message from hs100.sh
	in64 := "AAAAKtDygfiL/5r31e+UtsWg1Iv5nPCR6LfEsNGlwOLYo4HyhueT9tTu36Lfog=="
	in, err := base64.StdEncoding.DecodeString(in64)
	if err != nil {
		t.Fatalf("base64.DecodeString(%q) error: %v", in64, err)
	}
	t.Logf("in[:4] = %v", in[:4])
	in = in[4:]
	want := []byte(`{"system":{"set_relay_state":{"state":1}}}`)
	got, err := io.ReadAll(newDecrypter(bytes.NewReader(in)))
	if err != nil {
		t.Fatalf("io.ReadAll(decryptReader) error: %v", err)
	}
	if !bytes.Equal(got, want) {
		t.Errorf("io.ReadAll(decryptReader) = %q, want %q", got, want)
	}
}

func TestEncrypt(t *testing.T) {
	// on message from hs100.sh
	want64 := "AAAAKtDygfiL/5r31e+UtsWg1Iv5nPCR6LfEsNGlwOLYo4HyhueT9tTu36Lfog=="
	want, err := base64.StdEncoding.DecodeString(want64)
	if err != nil {
		t.Fatalf("base64.DecodeString(%q) error: %v", want64, err)
	}
	want = want[4:]
	in := []byte(`{"system":{"set_relay_state":{"state":1}}}`)
	var buf bytes.Buffer
	if _, err := newEncrypter(&buf).Write(in); err != nil {
		t.Fatalf("newEncrypter(buf).Write(in) error = %v", err)
	}

	if got := buf.Bytes(); !bytes.Equal(got, want) {
		t.Errorf("buf.Bytes() = %02x, want %02x", got, want)
	}
}

func TestEncryptDecrypt(t *testing.T) {
	want := make([]byte, 64)
	if _, err := rand.Read(want); err != nil {
		t.Fatalf("rand.Read(want) error: %v", err)
	}

	var buf bytes.Buffer
	newEncrypter(&buf).Write(want)
	got, err := io.ReadAll(newDecrypter(&buf))
	if err != nil {
		t.Fatalf("io.ReadAll(newDecrypter(&buf))")
	}
	if !bytes.Equal(got, want) {
		t.Errorf("decrypt(encrypt(%02x)) = %02x, want %02x", want, got, want)
	}
}

func TestReadStatusFromRealPlug(t *testing.T) {
	t.Skip("Hits the real device")

	p := Plug{Addr: "192.168.86.10:9999"}

	si, err := p.SysInfo()
	if err != nil {
		t.Errorf("Plug.SysInfo() error = %v", err)
	}
	t.Logf("SysInfo = %#v", *si)
}

func TestTurnOn(t *testing.T) {
	t.Skip("Hits the real device")

	p := Plug{Addr: "192.168.86.10:9999"}

	if err := p.TurnOn(); err != nil {
		t.Errorf("Plug.TurnOn() error = %v", err)
	}
}

func TestTurnOff(t *testing.T) {
	t.Skip("Hits the real device")

	p := Plug{Addr: "192.168.86.10:9999"}

	if err := p.TurnOff(); err != nil {
		t.Errorf("Plug.TurnOff() error = %v", err)
	}
}