package main

import (
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"net/http/httptest"
	"reflect"
	"testing"

	"git.andreafazzi.eu/andrea/testhub/logger"
	"git.andreafazzi.eu/andrea/testhub/models"
	"git.andreafazzi.eu/andrea/testhub/store"
	"github.com/remogatto/prettytest"
)

type testSuite struct {
	prettytest.Suite
}

type StubTestHubCollectorStore struct {
	tests []*models.Test
}

func (store *StubTestHubCollectorStore) CreateTest(test *store.CreateTestRequest) *models.Test {
	return nil
}

func (store *StubTestHubCollectorStore) GetTests() []*models.Test {
	return store.tests
}

func TestRunner(t *testing.T) {
	prettytest.Run(
		t,
		new(testSuite),
		new(integrationTestSuite),
	)
}

func (t *testSuite) BeforeAll() {
	logger.SetLevel(logger.Disabled)
}

func (t *testSuite) TestGETQuestions() {
	expectedResult := []*models.Test{
		{
			Question: &models.Question{ID: "1", Text: "Question 1"},
			Answers:  []*models.Answer{{}, {}, {}},
		},
	}

	store := &StubTestHubCollectorStore{[]*models.Test{
		{
			Question: &models.Question{ID: "1", Text: "Question 1"},
			Answers:  []*models.Answer{{}, {}, {}},
		},
	}}

	server := NewTestHubCollectorServer(store)

	request, _ := http.NewRequest(http.MethodGet, "/tests", nil)
	response := httptest.NewRecorder()

	server.ServeHTTP(response, request)

	result := getTestsFromResponse(response.Body)

	t.True(testsAreEqual(expectedResult, result))
	t.Equal(http.StatusOK, response.Code)
}

func getTestsFromResponse(body io.Reader) (tests []*models.Test) {
	err := json.NewDecoder(body).Decode(&tests)

	if err != nil {
		panic(fmt.Errorf("Unable to parse response from server %q into slice of Test, '%v'", body, err))
	}

	return
}

func testsAreEqual(got, want []*models.Test) bool {
	return reflect.DeepEqual(got, want)
}