package appstore

import (
	"errors"
	"os"
	"reflect"
	"testing"
	"time"
)

func TestHandleError(t *testing.T) {
	var expected, actual error

	// status 0
	expected = nil
	actual = HandleError(0)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status 21000
	expected = errors.New("The App Store could not read the JSON object you provided.")
	actual = HandleError(21000)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status 21002
	expected = errors.New("The data in the receipt-data property was malformed or missing.")
	actual = HandleError(21002)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status 21003
	expected = errors.New("The receipt could not be authenticated.")
	actual = HandleError(21003)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status 21004
	expected = errors.New("The shared secret you provided does not match the shared secret on file for your account.")
	actual = HandleError(21004)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status 21005
	expected = errors.New("The receipt server is not currently available.")
	actual = HandleError(21005)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status 21006
	expected = errors.New("This receipt is valid but the subscription has expired. When this status code is returned to your server, the receipt data is also decoded and returned as part of the response.")
	actual = HandleError(21006)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status 21007
	expected = errors.New("This receipt is from the test environment, but it was sent to the production environment for verification. Send it to the test environment instead.")
	actual = HandleError(21007)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status 21008
	expected = errors.New("This receipt is from the production environment, but it was sent to the test environment for verification. Send it to the production environment instead.")
	actual = HandleError(21008)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status 21010
	expected = errors.New("This receipt could not be authorized. Treat this the same as if a purchase was never made.")
	actual = HandleError(21010)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status 21100 - 21199
	expected = errors.New("Internal data access error.")
	actual = HandleError(21155)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}

	// status unknown
	expected = errors.New("An unknown error occurred")
	actual = HandleError(100)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}
}

func TestNew(t *testing.T) {
	expected := Client{
		URL:     "https://sandbox.itunes.apple.com/verifyReceipt",
		TimeOut: time.Second * 5,
	}

	actual := New()
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}
}

func TestNewWithEnvironment(t *testing.T) {
	expected := Client{
		URL:     "https://buy.itunes.apple.com/verifyReceipt",
		TimeOut: time.Second * 5,
	}

	os.Setenv("IAP_ENVIRONMENT", "production")
	actual := New()
	os.Clearenv()

	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}
}

func TestNewWithConfig(t *testing.T) {
	config := Config{
		IsProduction: true,
		TimeOut:      time.Second * 2,
	}

	expected := Client{
		URL:     "https://buy.itunes.apple.com/verifyReceipt",
		TimeOut: time.Second * 2,
	}

	actual := NewWithConfig(config)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}
}

func TestNewWithConfigTimeout(t *testing.T) {
	config := Config{
		IsProduction: true,
	}

	expected := Client{
		URL:     "https://buy.itunes.apple.com/verifyReceipt",
		TimeOut: time.Second * 5,
	}

	actual := NewWithConfig(config)
	if !reflect.DeepEqual(actual, expected) {
		t.Errorf("got %v\nwant %v", actual, expected)
	}
}

func TestVerify(t *testing.T) {
	client := New()
	client.TimeOut = time.Millisecond * 100

	req := IAPRequest{
		ReceiptData: "dummy data",
	}
	result := &IAPResponse{}
	err := client.Verify(req, result)
	if err == nil {
		t.Errorf("error should be occurred because of timeout")
	}

	client = New()
	expected := &IAPResponse{
		Status: 21002,
	}
	client.Verify(req, result)
	if !reflect.DeepEqual(result, expected) {
		t.Errorf("got %v\nwant %v", result, expected)
	}
}