From b4ef16a5fb9e44e607ccb5696035c4621527fa4d Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 16:52:09 -0300
Subject: [PATCH 01/11] Implementando testfy

---
 backend/go.mod | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/backend/go.mod b/backend/go.mod
index 77c94c9..dbb08a9 100644
--- a/backend/go.mod
+++ b/backend/go.mod
@@ -27,6 +27,7 @@ require (
 	github.com/bytedance/sonic/loader v0.1.1 // indirect
 	github.com/cloudwego/base64x v0.1.4 // indirect
 	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.4 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
@@ -62,7 +63,9 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rogpeppe/go-internal v1.11.0 // indirect
+	github.com/stretchr/testify v1.9.0 // indirect
 	github.com/swaggo/files v1.0.1 // indirect
 	github.com/swaggo/gin-swagger v1.6.0 // indirect
 	github.com/swaggo/swag v1.16.3 // indirect

From c7a59b30f4d306de3586ae74dc90b469dc2b8518 Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 16:52:22 -0300
Subject: [PATCH 02/11] Implementando retorno em SetupOAuthConfig

---
 backend/cmd/api/main.go | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/backend/cmd/api/main.go b/backend/cmd/api/main.go
index 02d0b08..c33507d 100644
--- a/backend/cmd/api/main.go
+++ b/backend/cmd/api/main.go
@@ -13,7 +13,7 @@ import (
 
 func main() {
 
-	config.SetupOAuthConfig()
+	oauthConfig := config.SetupOAuthConfig()
 
 	token, err := models.LoadToken()
 
@@ -23,8 +23,14 @@ func main() {
 
 	if token == nil {
 		log.Println("Token not found, redirecting to authentication...")
-		fmt.Println("Please visit the following link to authorize your Google account: ", config.OAuthConfig.AuthCodeURL("state-token", oauth2.AccessTypeOffline))
+		fmt.Println("Please visit the following link to authorize your Google account: ", oauthConfig.AuthCodeURL("state-token", oauth2.AccessTypeOffline))
 	}
 
-	http.StartServer()
+	appAuthConfig := config.AuthConfig{
+		Config: oauthConfig,
+		Token:  token,
+	}
+
+	http.StartServer(appAuthConfig)
+
 }

From 984e9253665a00c33bb95fa5fa89c9d778fac518 Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 16:52:37 -0300
Subject: [PATCH 03/11] Implementando retorno em SetupOAuthConfig

---
 backend/config/config.go | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/backend/config/config.go b/backend/config/config.go
index f3310cb..b509cef 100644
--- a/backend/config/config.go
+++ b/backend/config/config.go
@@ -3,8 +3,19 @@ package config
 import (
 	"log"
 	"os"
+
+	"github.com/joho/godotenv"
+	"golang.org/x/oauth2"
+	"golang.org/x/oauth2/google"
+	"google.golang.org/api/calendar/v3"
+	"google.golang.org/api/gmail/v1"
 )
 
+type AuthConfig struct {
+	Config *oauth2.Config
+	Token  *oauth2.Token
+}
+
 func GetEventGoogleMeet() string {
 
 	meetEvent := os.Getenv("GOOGLE_MEET_EVENT")
@@ -15,3 +26,28 @@ func GetEventGoogleMeet() string {
 
 	return meetEvent
 }
+
+func SetupOAuthConfig() *oauth2.Config { // Função que lê as variáveis de ambiente e retorna um ponteiro para uma configuração OAuth2
+
+	err := godotenv.Load()
+
+	if err != nil {
+		log.Printf("Warning: No .env file found, reading from environment variables. Error: %v", err)
+	}
+
+	clientID := os.Getenv("GOOGLE_CLIENT_ID")
+	clientSecret := os.Getenv("GOOGLE_CLIENT_SECRET")
+	redirectURL := os.Getenv("GOOGLE_REDIRECT_URL")
+
+	if clientID == "" || clientSecret == "" || redirectURL == "" {
+		log.Fatal("Please set the GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, and GOOGLE_REDIRECT_URL environment variables")
+	}
+
+	return &oauth2.Config{
+		ClientID:     clientID,
+		ClientSecret: clientSecret,
+		RedirectURL:  redirectURL,
+		Scopes:       []string{gmail.GmailSendScope, calendar.CalendarScope},
+		Endpoint:     google.Endpoint,
+	}
+}

From fe2232e54fa0abefda8012cbc13cb181845d9387 Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 16:53:02 -0300
Subject: [PATCH 04/11] Implementando nova estrutura para auth

---
 backend/internal/auth/client.go | 17 +++++++++++++++++
 backend/internal/auth/token.go  | 25 +++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 backend/internal/auth/client.go
 create mode 100644 backend/internal/auth/token.go

diff --git a/backend/internal/auth/client.go b/backend/internal/auth/client.go
new file mode 100644
index 0000000..188c1fc
--- /dev/null
+++ b/backend/internal/auth/client.go
@@ -0,0 +1,17 @@
+package auth
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"golang.org/x/oauth2"
+)
+
+func CreateOAuthClient(ctx context.Context, oauthConfig *oauth2.Config, token *oauth2.Token) (*http.Client, error) {
+	client := oauthConfig.Client(ctx, token)
+	if client == nil {
+		return nil, fmt.Errorf("failed to create OAuth client")
+	}
+	return client, nil
+}
diff --git a/backend/internal/auth/token.go b/backend/internal/auth/token.go
new file mode 100644
index 0000000..77b0b18
--- /dev/null
+++ b/backend/internal/auth/token.go
@@ -0,0 +1,25 @@
+package auth
+
+import (
+	"context"
+	"fmt"
+
+	"golang.org/x/oauth2"
+)
+
+func ExchangeCodeForToken(ctx context.Context, oauthConfig *oauth2.Config, code string) (*oauth2.Token, error) {
+	token, err := oauthConfig.Exchange(ctx, code)
+	if err != nil {
+		return nil, fmt.Errorf("unable to retrieve token from web: %v", err)
+	}
+	return token, nil
+}
+
+func RefreshToken(ctx context.Context, oauthConfig *oauth2.Config, token *oauth2.Token) (*oauth2.Token, error) {
+	ts := oauthConfig.TokenSource(ctx, token)
+	newToken, err := ts.Token()
+	if err != nil {
+		return nil, fmt.Errorf("failed to refresh token: %v", err)
+	}
+	return newToken, nil
+}

From f2208cf86b5bdd5f67651a0c522ad83f234cffd6 Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 16:53:27 -0300
Subject: [PATCH 05/11] =?UTF-8?q?Refatorando=20servi=C3=A7os?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 backend/internal/services/calendar_service.go | 74 ++++++++++++++++
 backend/internal/services/email_service.go    | 10 +++
 backend/internal/services/gmail_service.go    | 82 +++++++++++++++++
 .../services/google_calendar_service.go       | 88 +++++++++++++++++++
 4 files changed, 254 insertions(+)
 create mode 100644 backend/internal/services/calendar_service.go
 create mode 100644 backend/internal/services/email_service.go
 create mode 100644 backend/internal/services/gmail_service.go
 create mode 100644 backend/internal/services/google_calendar_service.go

diff --git a/backend/internal/services/calendar_service.go b/backend/internal/services/calendar_service.go
new file mode 100644
index 0000000..7a5a80a
--- /dev/null
+++ b/backend/internal/services/calendar_service.go
@@ -0,0 +1,74 @@
+package services
+
+import (
+	"context"
+
+	"golang.org/x/oauth2"
+	"google.golang.org/api/calendar/v3"
+)
+
+type CalendarService interface { // Interface que define os métodos que devem ser implementados por um serviço de calendário
+	InitializeService(ctx context.Context, config *oauth2.Config, token *oauth2.Token) (CalendarAPI, error)
+	AddGuestToEvent(ctx context.Context, service CalendarAPI, hangoutLink, email string) (*calendar.Event, error)
+	FindEventByHangoutLink(ctx context.Context, service CalendarAPI, hangoutLink string) (*calendar.Event, error)
+}
+
+type CalendarAPI interface {
+	EventsList(calendarID string) EventsListCall
+	GetEvent(calendarID, eventID string) EventCall
+	UpdateEvent(calendarID, eventID string, event *calendar.Event) EventCall
+}
+
+type EventsListCall interface {
+	Do() (*calendar.Events, error)
+}
+
+type EventCall interface {
+	Do() (*calendar.Event, error)
+}
+
+type RealCalendarService struct {
+	GoogleCalendar *calendar.Service
+}
+
+func (rcs *RealCalendarService) EventsList(calendarID string) EventsListCall {
+	return &realEventsListCall{
+		call: rcs.GoogleCalendar.Events.List(calendarID),
+	}
+}
+
+func (rcs *RealCalendarService) GetEvent(calendarID, eventID string) EventCall {
+	return &realEventCall{
+		getCall: rcs.GoogleCalendar.Events.Get(calendarID, eventID),
+	}
+}
+
+func (rcs *RealCalendarService) UpdateEvent(calendarID, eventID string, event *calendar.Event) EventCall {
+	return &realUpdateEventCall{
+		updateCall: rcs.GoogleCalendar.Events.Update(calendarID, eventID, event),
+	}
+}
+
+type realEventsListCall struct {
+	call *calendar.EventsListCall
+}
+
+func (rel *realEventsListCall) Do() (*calendar.Events, error) {
+	return rel.call.Do()
+}
+
+type realEventCall struct {
+	getCall *calendar.EventsGetCall
+}
+
+func (rec *realEventCall) Do() (*calendar.Event, error) {
+	return rec.getCall.Do()
+}
+
+type realUpdateEventCall struct {
+	updateCall *calendar.EventsUpdateCall
+}
+
+func (ruc *realUpdateEventCall) Do() (*calendar.Event, error) {
+	return ruc.updateCall.Do()
+}
diff --git a/backend/internal/services/email_service.go b/backend/internal/services/email_service.go
new file mode 100644
index 0000000..f95f7d6
--- /dev/null
+++ b/backend/internal/services/email_service.go
@@ -0,0 +1,10 @@
+package services
+
+import (
+	"golang.org/x/oauth2"
+	"google.golang.org/api/calendar/v3"
+)
+
+type EmailService interface { // Interface que define os métodos que devem ser implementados por um serviço de e-mail
+	SendMentorshipInvitation(recipient string, eventDetails *calendar.Event, token *oauth2.Token) error
+}
diff --git a/backend/internal/services/gmail_service.go b/backend/internal/services/gmail_service.go
new file mode 100644
index 0000000..ddde3fa
--- /dev/null
+++ b/backend/internal/services/gmail_service.go
@@ -0,0 +1,82 @@
+package services
+
+import (
+	"bytes"
+	"context"
+	"faladev/pkg/utils"
+	"fmt"
+	"html/template"
+	"log"
+
+	"golang.org/x/oauth2"
+	"google.golang.org/api/calendar/v3"
+	"google.golang.org/api/gmail/v1"
+	"google.golang.org/api/option"
+)
+
+type GmailService struct {
+	config *oauth2.Config
+	token  *oauth2.Token
+}
+
+func NewGmailService(config *oauth2.Config, token *oauth2.Token) EmailService { // Construtor responsável por encapsular a criação de uma instância de GmailService e retornar um ponteiro para ela
+	return &GmailService{
+		config: config,
+		token:  token,
+	}
+}
+
+func (gs *GmailService) SendMentorshipInvitation(recipient string, eventDetails *calendar.Event, token *oauth2.Token) error { // Método que envia um convite de mentoria por e-mail
+
+	ctx := context.Background()
+	client := gs.config.Client(ctx, token)
+
+	srv, err := gmail.NewService(ctx, option.WithHTTPClient(client))
+
+	if err != nil {
+		log.Fatalf("Unable to retrieve Gmail client: %v", err)
+		return fmt.Errorf("Unable to retrieve Gmail client: %v", err)
+	}
+
+	emailTo := recipient
+	emailFrom := "Marcos Fonseca <contato@marcosfonseca.com.br>"
+	subject := "Convite para Mentoria em Carreira e Tecnologia"
+
+	tmpl, err := template.ParseFiles("templates/email/mentorship.html")
+
+	if err != nil {
+		log.Fatalf("Error loading template: %v", err)
+	}
+
+	data := struct {
+		HangoutLink string
+		HtmlLink    string
+	}{
+		HangoutLink: eventDetails.HangoutLink,
+		HtmlLink:    eventDetails.HtmlLink,
+	}
+
+	var body bytes.Buffer
+
+	if err := tmpl.Execute(&body, data); err != nil {
+		log.Fatalf("Error executing template: %v", err)
+	}
+
+	emailHeader := fmt.Sprintf("From: %s\r\nTo: %s\r\nSubject: %s\r\nContent-Type: text/html; charset=\"UTF-8\"\r\n\r\n",
+		emailFrom, emailTo, subject)
+
+	fullEmail := emailHeader + body.String()
+
+	encodedEmail := utils.Base64URLEncode([]byte(fullEmail))
+
+	var message gmail.Message
+	message.Raw = encodedEmail
+
+	_, err = srv.Users.Messages.Send("me", &message).Do()
+
+	if err != nil {
+		return fmt.Errorf("failed to send email: %v", err)
+	}
+
+	return nil
+}
diff --git a/backend/internal/services/google_calendar_service.go b/backend/internal/services/google_calendar_service.go
new file mode 100644
index 0000000..b1e5267
--- /dev/null
+++ b/backend/internal/services/google_calendar_service.go
@@ -0,0 +1,88 @@
+package services
+
+import (
+	"context"
+	"faladev/internal/auth"
+	"fmt"
+
+	"github.com/pkg/errors"
+	log "github.com/sirupsen/logrus"
+	"golang.org/x/oauth2"
+	"google.golang.org/api/calendar/v3"
+	"google.golang.org/api/option"
+)
+
+type GoogleCalendarService struct{} // Estrutura que implementa a interface CalendarService
+
+func NewGoogleCalendarService() CalendarService { // Construtor responsável por encapsular a criação de uma instância de GoogleCalendarService e retornar um ponteiro para ela
+	return &GoogleCalendarService{}
+}
+
+func (gcs *GoogleCalendarService) InitializeService(ctx context.Context, config *oauth2.Config, token *oauth2.Token) (CalendarAPI, error) { // Método que inicializa o serviço de calendário
+
+	client, err := auth.CreateOAuthClient(ctx, config, token)
+
+	if err != nil {
+		return nil, fmt.Errorf("error creating OAuth client: %v", err)
+	}
+
+	service, err := calendar.NewService(ctx, option.WithHTTPClient(client))
+
+	if err != nil {
+		return nil, fmt.Errorf("error creating calendar service: %v", err)
+	}
+	return &RealCalendarService{GoogleCalendar: service}, nil
+}
+
+func (gcs *GoogleCalendarService) FindEventByHangoutLink(ctx context.Context, api CalendarAPI, hangoutLink string) (*calendar.Event, error) { // Método que recebe um link do Google Meet e retorna o evento correspondente
+
+	events, err := api.EventsList("primary").Do()
+
+	if err != nil {
+		return nil, errors.Wrap(err, "error listing events")
+	}
+
+	for _, event := range events.Items {
+		if event.HangoutLink == hangoutLink {
+			return event, nil
+		}
+	}
+
+	return nil, fmt.Errorf("event with HangoutLink %s not found", hangoutLink)
+}
+
+func (gcs *GoogleCalendarService) AddGuestToEvent(ctx context.Context, api CalendarAPI, hangoutLink, email string) (*calendar.Event, error) { // Método que adiciona um convidado a um evento
+
+	eventDetails, err := gcs.FindEventByHangoutLink(ctx, api, hangoutLink)
+
+	if err != nil {
+		return nil, err
+	}
+
+	updatedEvent, err := api.GetEvent("primary", eventDetails.Id).Do()
+
+	if err != nil {
+		return nil, errors.Wrap(err, "error getting event details")
+	}
+
+	for _, attendee := range updatedEvent.Attendees {
+		if attendee.Email == email {
+			log.Infof("Guest %s is already in the event %s - Meet: %s\n", email, eventDetails.Id, hangoutLink)
+			return updatedEvent, nil
+		}
+	}
+
+	attendee := &calendar.EventAttendee{Email: email}
+
+	updatedEvent.Attendees = append(updatedEvent.Attendees, attendee)
+
+	_, err = api.UpdateEvent("primary", updatedEvent.Id, updatedEvent).Do()
+
+	if err != nil {
+		return nil, errors.Wrap(err, "error adding guest to event")
+	}
+
+	log.Infof("Guest %s added to the event %s - Meet: %s\n", email, eventDetails.Id, hangoutLink)
+
+	return updatedEvent, nil
+}

From ecc04aa6690ef0dc9ad8b65d272858bbb870162c Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 16:53:46 -0300
Subject: [PATCH 06/11] =?UTF-8?q?Implementa=C3=A7=C3=A3o=20de=20tests=20e?=
 =?UTF-8?q?=20mocks=20para=20calendar=20service?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../tests/google_calendar_service_mocks.go    | 57 ++++++++++++
 backend/tests/google_calendar_service_test.go | 87 +++++++++++++++++++
 2 files changed, 144 insertions(+)
 create mode 100644 backend/tests/google_calendar_service_mocks.go
 create mode 100644 backend/tests/google_calendar_service_test.go

diff --git a/backend/tests/google_calendar_service_mocks.go b/backend/tests/google_calendar_service_mocks.go
new file mode 100644
index 0000000..f2d9355
--- /dev/null
+++ b/backend/tests/google_calendar_service_mocks.go
@@ -0,0 +1,57 @@
+package services
+
+import (
+	"faladev/internal/services"
+	"fmt"
+
+	"google.golang.org/api/calendar/v3"
+)
+
+type FakeCalendarService struct {
+	EventsListMock  func(calendarID string) services.EventsListCall
+	GetEventMock    func(calendarID, eventID string) services.EventCall
+	UpdateEventMock func(calendarID, eventID string, event *calendar.Event) services.EventCall
+}
+
+func (f *FakeCalendarService) EventsList(calendarID string) services.EventsListCall {
+	if f.EventsListMock != nil {
+		return f.EventsListMock(calendarID)
+	}
+	return nil
+}
+
+func (f *FakeCalendarService) GetEvent(calendarID, eventID string) services.EventCall {
+	if f.GetEventMock != nil {
+		return f.GetEventMock(calendarID, eventID)
+	}
+	return nil
+}
+
+func (f *FakeCalendarService) UpdateEvent(calendarID, eventID string, event *calendar.Event) services.EventCall {
+	if f.UpdateEventMock != nil {
+		return f.UpdateEventMock(calendarID, eventID, event)
+	}
+	return nil
+}
+
+type FakeEventsListCall struct {
+	DoFunc func() (*calendar.Events, error)
+}
+
+func (f *FakeEventsListCall) Do() (*calendar.Events, error) {
+	if f.DoFunc != nil {
+		return f.DoFunc()
+	}
+	return nil, fmt.Errorf("Do function not implemented")
+}
+
+type FakeEventCall struct {
+	DoFunc func() (*calendar.Event, error)
+}
+
+func (f *FakeEventCall) Do() (*calendar.Event, error) {
+	if f.DoFunc != nil {
+		return f.DoFunc()
+	}
+	return nil, fmt.Errorf("Do function not implemented")
+}
diff --git a/backend/tests/google_calendar_service_test.go b/backend/tests/google_calendar_service_test.go
new file mode 100644
index 0000000..73743ba
--- /dev/null
+++ b/backend/tests/google_calendar_service_test.go
@@ -0,0 +1,87 @@
+package services
+
+import (
+	"context"
+	"faladev/internal/services"
+	"testing"
+
+	"github.com/pkg/errors"
+	log "github.com/sirupsen/logrus"
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/api/calendar/v3"
+)
+
+func TestFindEventByHangoutLink(t *testing.T) {
+	tests := []struct {
+		name          string
+		hangoutLink   string
+		mockDoFunc    func() (*calendar.Events, error)
+		expectedEvent *calendar.Event
+		expectedError string
+	}{
+		{
+			name:        "Event Found",
+			hangoutLink: "https://meet.google.com/xxx-yyyy-zzz",
+			mockDoFunc: func() (*calendar.Events, error) {
+				return &calendar.Events{
+					Items: []*calendar.Event{
+						{HangoutLink: "https://meet.google.com/xxx-yyyy-zzz"},
+					},
+				}, nil
+			},
+			expectedEvent: &calendar.Event{HangoutLink: "https://meet.google.com/xxx-yyyy-zzz"},
+			expectedError: "",
+		},
+		{
+			name:        "Event Not Found",
+			hangoutLink: "https://meet.google.com/non-existent",
+			mockDoFunc: func() (*calendar.Events, error) {
+				return &calendar.Events{
+					Items: []*calendar.Event{
+						{HangoutLink: "https://meet.google.com/xxx-yyyy-zzz"},
+					},
+				}, nil
+			},
+			expectedEvent: nil,
+			expectedError: "event with HangoutLink https://meet.google.com/non-existent not found",
+		},
+		{
+			name:        "API Error",
+			hangoutLink: "https://meet.google.com/xxx-yyyy-zzz",
+			mockDoFunc: func() (*calendar.Events, error) {
+				return nil, errors.New("API error")
+			},
+			expectedEvent: nil,
+			expectedError: "error listing events: API error",
+		},
+	}
+
+	for _, tt := range tests {
+
+		t.Run(tt.name, func(t *testing.T) {
+			mockService := &FakeCalendarService{
+				EventsListMock: func(calendarID string) services.EventsListCall {
+					return &FakeEventsListCall{
+						DoFunc: tt.mockDoFunc,
+					}
+				},
+			}
+
+			gcs := services.GoogleCalendarService{}
+
+			event, err := gcs.FindEventByHangoutLink(context.Background(), mockService, tt.hangoutLink)
+
+			if tt.expectedError != "" {
+				log.Infof("Error: %v", err)
+				log.Info("Event: ", event)
+				assert.EqualError(t, err, tt.expectedError)
+				assert.Error(t, err)
+				assert.Nil(t, event)
+			} else {
+				assert.NoError(t, err)
+				assert.Equal(t, tt.expectedEvent, event)
+			}
+		})
+	}
+
+}

From 2dde5a6fe9f3ad602f4052fe2aad33067cd1f67a Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 16:54:49 -0300
Subject: [PATCH 07/11] Refatorando http handler

---
 backend/config/oauth.go               |  39 ------
 backend/internal/services/calendar.go |  62 ----------
 backend/internal/services/email.go    |  65 ----------
 backend/internal/services/oauth.go    |  49 --------
 backend/internal/services/service.go  |  20 ---
 backend/pkg/http/http.go              | 170 +++++++++++++++++++++++---
 6 files changed, 156 insertions(+), 249 deletions(-)
 delete mode 100644 backend/config/oauth.go
 delete mode 100644 backend/internal/services/calendar.go
 delete mode 100644 backend/internal/services/email.go
 delete mode 100644 backend/internal/services/oauth.go
 delete mode 100644 backend/internal/services/service.go

diff --git a/backend/config/oauth.go b/backend/config/oauth.go
deleted file mode 100644
index e79a6b0..0000000
--- a/backend/config/oauth.go
+++ /dev/null
@@ -1,39 +0,0 @@
-package config
-
-import (
-	"log"
-	"os"
-
-	"github.com/joho/godotenv"
-	"golang.org/x/oauth2"
-	"golang.org/x/oauth2/google"
-	"google.golang.org/api/calendar/v3"
-	"google.golang.org/api/gmail/v1"
-)
-
-var OAuthConfig *oauth2.Config
-
-func SetupOAuthConfig() {
-
-	err := godotenv.Load()
-
-	if err != nil {
-		log.Printf("Warning: No .env file found, reading from environment variables. Error: %v", err)
-	}
-
-	clientID := os.Getenv("GOOGLE_CLIENT_ID")
-	clientSecret := os.Getenv("GOOGLE_CLIENT_SECRET")
-	redirectURL := os.Getenv("GOOGLE_REDIRECT_URL")
-
-	if clientID == "" || clientSecret == "" || redirectURL == "" {
-		log.Fatal("Please set the GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, and GOOGLE_REDIRECT_URL environment variables")
-	}
-
-	OAuthConfig = &oauth2.Config{
-		ClientID:     clientID,
-		ClientSecret: clientSecret,
-		RedirectURL:  redirectURL,
-		Scopes:       []string{gmail.GmailSendScope, calendar.CalendarScope},
-		Endpoint:     google.Endpoint,
-	}
-}
diff --git a/backend/internal/services/calendar.go b/backend/internal/services/calendar.go
deleted file mode 100644
index 4c4d6f3..0000000
--- a/backend/internal/services/calendar.go
+++ /dev/null
@@ -1,62 +0,0 @@
-package services
-
-import (
-	"fmt"
-
-	"github.com/pkg/errors"
-	log "github.com/sirupsen/logrus"
-	"google.golang.org/api/calendar/v3"
-)
-
-func findEventByHangoutLink(calendarService *calendar.Service, hangoutLink string) (*calendar.Event, error) {
-
-	events, err := calendarService.Events.List("primary").Do()
-
-	if err != nil {
-		return nil, errors.Wrap(err, "error listing events")
-	}
-
-	for _, event := range events.Items {
-		if event.HangoutLink == hangoutLink {
-			return event, nil
-		}
-	}
-
-	return nil, fmt.Errorf("event with HangoutLink %s not found", hangoutLink)
-}
-
-func AddGuestToEvent(calendarService *calendar.Service, hangoutLink, email string) (*calendar.Event, error) {
-
-	eventDetails, err := findEventByHangoutLink(calendarService, hangoutLink)
-
-	if err != nil {
-		return nil, err
-	}
-
-	updatedEvent, err := calendarService.Events.Get("primary", eventDetails.Id).Do()
-
-	if err != nil {
-		return nil, errors.Wrap(err, "error getting event details")
-	}
-
-	for _, attendee := range updatedEvent.Attendees {
-		if attendee.Email == email {
-			log.Infof("Guest %s is already in the event %s - Meet: %s\n", email, eventDetails.Id, hangoutLink)
-			return updatedEvent, nil
-		}
-	}
-
-	attendee := &calendar.EventAttendee{Email: email}
-
-	updatedEvent.Attendees = append(updatedEvent.Attendees, attendee)
-
-	_, err = calendarService.Events.Update("primary", updatedEvent.Id, updatedEvent).Do()
-
-	if err != nil {
-		return nil, errors.Wrap(err, "error adding guest to event")
-	}
-
-	log.Infof("Guest %s added to the event %s - Meet: %s\n", email, eventDetails.Id, hangoutLink)
-
-	return updatedEvent, nil
-}
diff --git a/backend/internal/services/email.go b/backend/internal/services/email.go
deleted file mode 100644
index 84f692c..0000000
--- a/backend/internal/services/email.go
+++ /dev/null
@@ -1,65 +0,0 @@
-package services
-
-import (
-	"bytes"
-	"faladev/pkg/utils"
-	"fmt"
-	"html/template"
-	"log"
-	"net/http"
-
-	"golang.org/x/oauth2"
-	"google.golang.org/api/calendar/v3"
-	"google.golang.org/api/gmail/v1"
-)
-
-func SendMailMentorship(recipient string, eventDetails *calendar.Event, tok *oauth2.Token, client *http.Client) error {
-
-	srv, err := gmail.New(client)
-
-	if err != nil {
-		log.Fatalf("Unable to retrieve Gmail client: %v", err)
-	}
-
-	emailTo := recipient
-	emailFrom := "Marcos Fonseca <contato@marcosfonseca.com.br>"
-	subject := "Convite para Mentoria em Carreira e Tecnologia"
-
-	tmpl, err := template.ParseFiles("templates/email/mentorship.html")
-
-	if err != nil {
-		log.Fatalf("Error loading template: %v", err)
-	}
-
-	data := struct {
-		HangoutLink string
-		HtmlLink    string
-	}{
-		HangoutLink: eventDetails.HangoutLink,
-		HtmlLink:    eventDetails.HtmlLink,
-	}
-
-	var body bytes.Buffer
-
-	if err := tmpl.Execute(&body, data); err != nil {
-		log.Fatalf("Error executing template: %v", err)
-	}
-
-	emailHeader := fmt.Sprintf("From: %s\r\nTo: %s\r\nSubject: %s\r\nContent-Type: text/html; charset=\"UTF-8\"\r\n\r\n",
-		emailFrom, emailTo, subject)
-
-	fullEmail := emailHeader + body.String()
-
-	encodedEmail := utils.Base64URLEncode([]byte(fullEmail))
-
-	var message gmail.Message
-	message.Raw = encodedEmail
-
-	_, err = srv.Users.Messages.Send("me", &message).Do()
-
-	if err != nil {
-		return fmt.Errorf("failed to send email: %v", err)
-	}
-
-	return nil
-}
diff --git a/backend/internal/services/oauth.go b/backend/internal/services/oauth.go
deleted file mode 100644
index f4508d5..0000000
--- a/backend/internal/services/oauth.go
+++ /dev/null
@@ -1,49 +0,0 @@
-package services
-
-import (
-	"context"
-	"faladev/config"
-	"faladev/internal/models"
-	"fmt"
-	"net/http"
-
-	"golang.org/x/oauth2"
-)
-
-func ExchangeCodeForToken(oauthConfig *oauth2.Config, code string) (*oauth2.Token, error) {
-	token, err := oauthConfig.Exchange(context.Background(), code)
-	if err != nil {
-		return nil, fmt.Errorf("unable to retrieve token from web: %v", err)
-	}
-	return token, nil
-}
-
-func CreateOAuthClient(oauthConfig *oauth2.Config, token *oauth2.Token) (*http.Client, error) {
-	client := oauthConfig.Client(context.Background(), token)
-	if client == nil {
-		return nil, fmt.Errorf("failed to create OAuth client")
-	}
-	return client, nil
-}
-
-func RefreshToken(token *oauth2.Token) (*oauth2.Token, error) {
-
-	ts := config.OAuthConfig.TokenSource(context.Background(), token)
-
-	newToken, err := ts.Token()
-
-	if err != nil {
-		return nil, fmt.Errorf("failed to refresh token: %v", err)
-	}
-
-	if newToken.AccessToken != token.AccessToken {
-
-		err = models.SaveToken(newToken)
-
-		if err != nil {
-			return nil, fmt.Errorf("failed to save new token: %v", err)
-		}
-	}
-
-	return newToken, nil
-}
diff --git a/backend/internal/services/service.go b/backend/internal/services/service.go
deleted file mode 100644
index d5d651d..0000000
--- a/backend/internal/services/service.go
+++ /dev/null
@@ -1,20 +0,0 @@
-package services
-
-import (
-	"context"
-	"fmt"
-
-	"golang.org/x/oauth2"
-	"google.golang.org/api/calendar/v3"
-)
-
-var Token *oauth2.Token
-
-func InitializeCalendarService(ctx context.Context, config *oauth2.Config, token *oauth2.Token) (*calendar.Service, error) {
-	client := config.Client(ctx, token)
-	service, err := calendar.New(client)
-	if err != nil {
-		return nil, fmt.Errorf("erro ao criar o serviço do Google Calendar: %v", err)
-	}
-	return service, nil
-}
diff --git a/backend/pkg/http/http.go b/backend/pkg/http/http.go
index 7b313c6..745fe29 100644
--- a/backend/pkg/http/http.go
+++ b/backend/pkg/http/http.go
@@ -1,24 +1,166 @@
 package http
 
-import (
-	docs "faladev/cmd/docs"
-	"faladev/pkg/handlers"
-	"fmt"
-	swaggerfiles "github.com/swaggo/files"
-	ginSwagger "github.com/swaggo/gin-swagger"
-	"os"
+type ErrorResponse struct {
+	Error string
+}
 
-	"github.com/gin-gonic/gin"
-)
+type App struct {
+	config          *oauth2.Config
+	calendarService services.CalendarService
+	emailService    services.EmailService
+}
 
-func StartServer() {
+func NewApp(config *oauth2.Config, calendar services.CalendarService, email services.EmailService) *App {
+	return &App{
+		config:          config,
+		calendarService: calendar,
+		emailService:    email,
+	}
+}
 
-	router := gin.Default()
+// FormHandler handles the form page.
+// @Summary Render form page
+// @Description Renders the form.html page to display user information form.
+// @Produce html
+// @Success 200 {string} html "HTML content of the form page"
+// @Router /form [get]
+func (app *App) FormHandler(c *gin.Context) {
+
+	tmpl, err := template.ParseFiles("templates/web/form.html")
+
+	if err != nil {
+		c.AbortWithError(http.StatusInternalServerError, fmt.Errorf("error parsing template: %v", err))
+		return
+	}
+
+	tmpl.Execute(c.Writer, nil)
+}
+
+// EventHandler handles the event handling endpoint.
+// @Summary Handle event creation and interaction
+// @Description Handles event creation, guest addition, email sending, and redirects to Google Meet link.
+// @Accept json
+// @Produce json
+// @Param name formData string true "Name of the student"
+// @Param email formData string true "Email of the student"
+// @Param phone formData string true "Phone number of the student"
+// @Success 303 {string} string "Redirects to Google Meet link"
+// @Failure 400 {object} ErrorResponse "No Google Meet link available or other errors"
+// @Failure 500 {object} ErrorResponse "Internal server error"
+// @Router /event-handler [post]
+func (app *App) EventHandler(c *gin.Context) {
+
+	name := c.PostForm("name")
+	email := c.PostForm("email")
+	phone := c.PostForm("phone")
+
+	if err := models.InsertOrUpdateStudent(name, email, phone); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Error inserting record into database: " + err.Error()})
+		return
+	}
+
+	token, err := models.LoadToken()
+
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to load token: " + err.Error()})
+		return
+	}
+
+	if !token.Valid() {
+
+		token, err = auth.RefreshToken(c.Request.Context(), app.config, token)
+
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to refresh token: " + err.Error()})
+			return
+		}
+
+		err = models.SaveToken(token)
+
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to save token: " + err.Error()})
+			return
+		}
+	}
+
+	calendarService, err := app.calendarService.InitializeService(context.Background(), app.config, token)
+
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Error initializing Google Calendar service: " + err.Error()})
+		return
+	}
 
-	router.GET("/", handlers.FormHandler)
+	eventID := config.GetEventGoogleMeet()
+	eventDetails, err := app.calendarService.AddGuestToEvent(context.Background(), calendarService, eventID, email)
+
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Error getting event details: " + err.Error()})
+		return
+	}
+
+	if err = app.emailService.SendMentorshipInvitation(email, eventDetails, token); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to send email: " + err.Error()})
+		return
+	}
+
+	if eventDetails.HangoutLink == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "No Google Meet link available for this event"})
+		return
+	}
+
+	c.Redirect(http.StatusSeeOther, eventDetails.HangoutLink)
+}
+
+// OAuthCallbackHandler handles the OAuth2 callback endpoint.
+// @Summary Handle OAuth2 callback
+// @Description Exchange code for token and save it
+// @Accept  json
+// @Produce  json
+// @Param state query string true "State token"
+// @Param code query string true "Authorization code"
+// @Success 303  "Redirects to /"
+// @Failure 400 {object} ErrorResponse "State token doesn't match"
+// @Failure 500 {object} ErrorResponse "Unable to retrieve or save token"
+// @Router /oauth/callback [get]
+func (app *App) OAuthCallbackHandler(c *gin.Context) {
+
+	if c.Query("state") != "state-token" {
+		c.JSON(http.StatusBadRequest, &ErrorResponse{
+			Error: "State token doesn't match",
+		})
+		return
+	}
+
+	code := c.Query("code")
+
+	token, err := auth.ExchangeCodeForToken(c.Request.Context(), app.config, code)
+
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("Unable to retrieve token from web: %v", err)})
+		return
+	}
+
+	err = models.SaveToken(token)
+
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("Unable to save token: %v", err)})
+		return
+	}
+
+	fmt.Println("OAuth2 configured successfully with redirect URL:", app.config.RedirectURL)
+
+	c.Redirect(http.StatusSeeOther, "/")
+}
+
+func StartServer(appAuthConfig config.AuthConfig) {
+
+	app := NewApp(appAuthConfig.Config, services.NewGoogleCalendarService(), services.NewGmailService(appAuthConfig.Config, appAuthConfig.Token))
+
+	router := gin.Default()
 
-	router.GET("/callback", handlers.OAuthCallbackHandler)
-	router.POST("/event", handlers.EventHandler)
+	router.GET("/", app.FormHandler)
+	router.GET("/callback", app.OAuthCallbackHandler)
+	router.POST("/event", app.EventHandler)
 
 	router.Static("/static/", "static")
 

From 3416d695bab930e6d3469fa25bbd74ba14b7eb1e Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 17:11:50 -0300
Subject: [PATCH 08/11] Adicionando testify

---
 backend/go.mod           | 13 ++++---------
 backend/go.sum           | 28 +++++-----------------------
 backend/pkg/http/http.go | 19 +++++++++++++++++++
 3 files changed, 28 insertions(+), 32 deletions(-)

diff --git a/backend/go.mod b/backend/go.mod
index dbb08a9..d7888e3 100644
--- a/backend/go.mod
+++ b/backend/go.mod
@@ -10,6 +10,10 @@ require (
 	github.com/lib/pq v1.10.9
 	github.com/pkg/errors v0.9.1
 	github.com/sirupsen/logrus v1.9.3
+	github.com/stretchr/testify v1.9.0
+	github.com/swaggo/files v1.0.1
+	github.com/swaggo/gin-swagger v1.6.0
+	github.com/swaggo/swag v1.16.3
 	golang.org/x/oauth2 v0.21.0
 	google.golang.org/api v0.186.0
 	gorm.io/driver/postgres v1.5.9
@@ -21,8 +25,6 @@ require (
 	cloud.google.com/go/auth/oauth2adapt v0.2.2 // indirect
 	cloud.google.com/go/compute/metadata v0.3.0 // indirect
 	github.com/KyleBanks/depth v1.2.1 // indirect
-	github.com/PuerkitoBio/purell v1.2.1 // indirect
-	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
 	github.com/bytedance/sonic v1.11.9 // indirect
 	github.com/bytedance/sonic/loader v0.1.1 // indirect
 	github.com/cloudwego/base64x v0.1.4 // indirect
@@ -56,7 +58,6 @@ require (
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.8 // indirect
-	github.com/kr/text v0.2.0 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
@@ -64,11 +65,6 @@ require (
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/rogpeppe/go-internal v1.11.0 // indirect
-	github.com/stretchr/testify v1.9.0 // indirect
-	github.com/swaggo/files v1.0.1 // indirect
-	github.com/swaggo/gin-swagger v1.6.0 // indirect
-	github.com/swaggo/swag v1.16.3 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.12 // indirect
 	go.opencensus.io v0.24.0 // indirect
@@ -86,6 +82,5 @@ require (
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240624140628-dc46fd24d27d // indirect
 	google.golang.org/grpc v1.64.0 // indirect
 	google.golang.org/protobuf v1.34.2 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/backend/go.sum b/backend/go.sum
index beb3b9b..bf2ec86 100644
--- a/backend/go.sum
+++ b/backend/go.sum
@@ -8,10 +8,6 @@ cloud.google.com/go/compute/metadata v0.3.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1h
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/KyleBanks/depth v1.2.1 h1:5h8fQADFrWtarTdtDudMmGsC7GPbOAu6RVB3ffsVFHc=
 github.com/KyleBanks/depth v1.2.1/go.mod h1:jzSb9d0L43HxTQfT+oSA1EEp2q+ne2uh6XgeJcm8brE=
-github.com/PuerkitoBio/purell v1.2.1 h1:QsZ4TjvwiMpat6gBCBxEQI0rcS9ehtkKtSpiUnd9N28=
-github.com/PuerkitoBio/purell v1.2.1/go.mod h1:ZwHcC/82TOaovDi//J/804umJFFmbOHPngi8iYYv/Eo=
-github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
-github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/bytedance/sonic v1.11.9 h1:LFHENlIY/SLzDWverzdOvgMztTxcfcF+cqNsz9pK5zg=
 github.com/bytedance/sonic v1.11.9/go.mod h1:LysEHSvpvDySVdC2f87zGWf6CIKJcAvqab1ZaiQtds4=
 github.com/bytedance/sonic/loader v0.1.1 h1:c+e5Pt1k/cy5wMveRDyk2X4B9hF4g7an8N3zCYjJFNM=
@@ -23,7 +19,6 @@ github.com/cloudwego/base64x v0.1.4/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJ
 github.com/cloudwego/iasm v0.2.0 h1:1KNIy1I1H9hNNFEEH3DVnI4UujN+1zjpuk6gwHLTssg=
 github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQPiEFhY=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -35,6 +30,8 @@ github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2
 github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
 github.com/gabriel-vasile/mimetype v1.4.4 h1:QjV6pZ7/XZ7ryI2KuyeEDE8wnh7fHP9YnQy+R0LnH8I=
 github.com/gabriel-vasile/mimetype v1.4.4/go.mod h1:JwLei5XPtWdGiMFB5Pjle1oEeoSeEuJfJE+TtfvdB/s=
+github.com/gin-contrib/gzip v0.0.6 h1:NjcunTcGAj5CO1gn4N8jHOSIeRFHIbn51z6K+xaN4d4=
+github.com/gin-contrib/gzip v0.0.6/go.mod h1:QOJlmV2xmayAjkNS2Y8NQsMneuRShOU/kjovCXNuzzk=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
 github.com/gin-gonic/gin v1.10.0 h1:nTuyha1TYqgedzytsKYqna+DfLos46nTv2ygFy86HFU=
@@ -118,12 +115,8 @@ github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa02
 github.com/klauspost/cpuid/v2 v2.2.8 h1:+StwCXwm9PdpiEkPyzBXIy+M9KUb4ODm0Zarf1kS5BM=
 github.com/klauspost/cpuid/v2 v2.2.8/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
 github.com/knz/go-libedit v1.10.1/go.mod h1:MZTVkCWyz0oBc7JOWP3wNAzd002ZbM/5hgShxwh4x8M=
-github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
-github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
-github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
@@ -141,14 +134,11 @@ github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9G
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
 github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6Wq+LM=
 github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
-github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
-github.com/rogpeppe/go-internal v1.8.0 h1:FCbCCtXNOY3UtUuHUYaghJg4y7Fd14rXifAYUAtL9R8=
-github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6poM+XZ2dLUbcbE=
 github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
 github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
@@ -192,8 +182,6 @@ golang.org/x/arch v0.8.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.24.0 h1:mnl8DM0o513X8fdIkmyFE/5hTYxbwYOjDS/+rK6qpRI=
-golang.org/x/crypto v0.24.0/go.mod h1:Z1PMYSOR5nyMcyAVAIQSKCDwalqy85Aqn1x3Ws4L5DM=
 golang.org/x/crypto v0.25.0 h1:ypSNr+bnYL2YhwoMt2zPxHFmbAN1KZs/njMG3hxUp30=
 golang.org/x/crypto v0.25.0/go.mod h1:T+wALwcMOSE0kXgUAnPAHqTLW+XHgcELELW8VaDgm/M=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -201,6 +189,8 @@ golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTk
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
+golang.org/x/mod v0.19.0 h1:fEdghXQSo20giMthA7cd28ZC+jts4amQ3YMXiP5oMQ8=
+golang.org/x/mod v0.19.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -211,8 +201,6 @@ golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwY
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.26.0 h1:soB7SVo0PWrY4vPW/+ay0jKDNScG2X9wFeYlXIvJsOQ=
-golang.org/x/net v0.26.0/go.mod h1:5YKkiSynbBIh3p6iOc/vibscux0x38BZDkn8sCUPxHE=
 golang.org/x/net v0.27.0 h1:5K3Njcw06/l2y9vpGCSdcxWOYHOUk3dVNGDXN+FvAys=
 golang.org/x/net v0.27.0/go.mod h1:dDi0PyhWNoiUOrAS8uXv/vnScO4wnHQO4mj9fn/RytE=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -235,8 +223,6 @@ golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
-golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
 golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
@@ -290,12 +276,8 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba
 google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg=
 google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
-gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
-gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
-gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/backend/pkg/http/http.go b/backend/pkg/http/http.go
index 745fe29..684201e 100644
--- a/backend/pkg/http/http.go
+++ b/backend/pkg/http/http.go
@@ -1,5 +1,24 @@
 package http
 
+import (
+	"context"
+	docs "faladev/cmd/docs"
+	"faladev/config"
+	"faladev/internal/auth"
+	"faladev/internal/models"
+	"faladev/internal/services"
+	"fmt"
+	"html/template"
+	"net/http"
+	"os"
+
+	swaggerfiles "github.com/swaggo/files"
+	ginSwagger "github.com/swaggo/gin-swagger"
+	"golang.org/x/oauth2"
+
+	"github.com/gin-gonic/gin"
+)
+
 type ErrorResponse struct {
 	Error string
 }

From ae52be1162dd642299a2e5b20fd190f6276184f2 Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 17:12:09 -0300
Subject: [PATCH 09/11] Removendo package handlers

---
 backend/pkg/handlers/handlers.go | 148 -------------------------------
 1 file changed, 148 deletions(-)
 delete mode 100644 backend/pkg/handlers/handlers.go

diff --git a/backend/pkg/handlers/handlers.go b/backend/pkg/handlers/handlers.go
deleted file mode 100644
index b1abc70..0000000
--- a/backend/pkg/handlers/handlers.go
+++ /dev/null
@@ -1,148 +0,0 @@
-package handlers
-
-import (
-	"context"
-	"fmt"
-	"html/template"
-	"net/http"
-
-	"github.com/gin-gonic/gin"
-
-	"faladev/config"
-	"faladev/internal/models"
-	"faladev/internal/services"
-)
-
-type ErrorResponse struct {
-	Error string
-}
-
-// FormHandler handles the form page.
-// @Summary Render form page
-// @Description Renders the form.html page to display user information form.
-// @Produce html
-// @Success 200 {string} html "HTML content of the form page"
-// @Router /form [get]
-func FormHandler(c *gin.Context) {
-	tmpl, err := template.ParseFiles("templates/web/form.html")
-
-	if err != nil {
-		c.AbortWithError(http.StatusInternalServerError, fmt.Errorf("error parsing template: %v", err))
-		return
-	}
-	
-	tmpl.Execute(c.Writer, nil)
-}
-
-// EventHandler handles the event handling endpoint.
-// @Summary Handle event creation and interaction
-// @Description Handles event creation, guest addition, email sending, and redirects to Google Meet link.
-// @Accept json
-// @Produce json
-// @Param name formData string true "Name of the student"
-// @Param email formData string true "Email of the student"
-// @Param phone formData string true "Phone number of the student"
-// @Success 303 {string} string "Redirects to Google Meet link"
-// @Failure 400 {object} ErrorResponse "No Google Meet link available or other errors"
-// @Failure 500 {object} ErrorResponse "Internal server error"
-// @Router /event-handler [post]
-func EventHandler(c *gin.Context) {
-
-	name := c.PostForm("name")
-	email := c.PostForm("email")
-	phone := c.PostForm("phone")
-
-	if err := models.InsertOrUpdateStudent(name, email, phone); err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "Error inserting record into database: " + err.Error()})
-		return
-	}
-
-	token, err := models.LoadToken()
-
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to load token: " + err.Error()})
-		return
-	}
-
-	if !token.Valid() {
-		token, err = services.RefreshToken(token)
-		if err != nil {
-			c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to refresh token: " + err.Error()})
-			return
-		}
-	}
-
-	calendarService, err := services.InitializeCalendarService(context.Background(), config.OAuthConfig, token)
-
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "Error initializing Google Calendar service: " + err.Error()})
-		return
-	}
-
-	eventDetails, err := services.AddGuestToEvent(calendarService, config.GetEventGoogleMeet(), email)
-
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "Error getting event details: " + err.Error()})
-		return
-	}
-
-	client, err := services.CreateOAuthClient(config.OAuthConfig, token)
-
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to create OAuth client: " + err.Error()})
-		return
-	}
-
-	if err = services.SendMailMentorship(email, eventDetails, token, client); err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to send email: " + err.Error()})
-		return
-	}
-
-	if eventDetails.HangoutLink == "" {
-		c.JSON(http.StatusBadRequest, gin.H{"error": "No Google Meet link available for this event"})
-		return
-	}
-
-	c.Redirect(http.StatusSeeOther, eventDetails.HangoutLink)
-}
-
-// OAuthCallbackHandler handles the OAuth2 callback endpoint.
-// @Summary Handle OAuth2 callback
-// @Description Exchange code for token and save it
-// @Accept  json
-// @Produce  json
-// @Param state query string true "State token"
-// @Param code query string true "Authorization code"
-// @Success 303  "Redirects to /"
-// @Failure 400 {object} ErrorResponse "State token doesn't match"
-// @Failure 500 {object} ErrorResponse "Unable to retrieve or save token"
-// @Router /oauth/callback [get]
-func OAuthCallbackHandler(c *gin.Context) {
-
-	if c.Query("state") != "state-token" {
-		c.JSON(http.StatusBadRequest, &ErrorResponse{
-			Error: "State token doesn't match",
-		})
-		return
-	}
-
-	code := c.Query("code")
-
-	token, err := config.OAuthConfig.Exchange(context.Background(), code)
-
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("Unable to retrieve token from web: %v", err)})
-		return
-	}
-
-	err = models.SaveToken(token)
-
-	if err != nil {
-		c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("Unable to save token: %v", err)})
-		return
-	}
-
-	fmt.Println("OAuth2 configured successfully with redirect URL:", config.OAuthConfig.RedirectURL)
-
-	c.Redirect(http.StatusSeeOther, "/")
-}

From 5b6617f76f7cab4721d9d304c2a701b5f75f3630 Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 17:24:09 -0300
Subject: [PATCH 10/11] =?UTF-8?q?Removendo=20coment=C3=A1rios?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 backend/config/config.go                             |  2 +-
 backend/internal/services/calendar_service.go        |  2 +-
 backend/internal/services/email_service.go           |  2 +-
 backend/internal/services/gmail_service.go           |  4 ++--
 backend/internal/services/google_calendar_service.go | 10 +++++-----
 5 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/backend/config/config.go b/backend/config/config.go
index b509cef..1b2d6bb 100644
--- a/backend/config/config.go
+++ b/backend/config/config.go
@@ -27,7 +27,7 @@ func GetEventGoogleMeet() string {
 	return meetEvent
 }
 
-func SetupOAuthConfig() *oauth2.Config { // Função que lê as variáveis de ambiente e retorna um ponteiro para uma configuração OAuth2
+func SetupOAuthConfig() *oauth2.Config {
 
 	err := godotenv.Load()
 
diff --git a/backend/internal/services/calendar_service.go b/backend/internal/services/calendar_service.go
index 7a5a80a..90ed3dd 100644
--- a/backend/internal/services/calendar_service.go
+++ b/backend/internal/services/calendar_service.go
@@ -7,7 +7,7 @@ import (
 	"google.golang.org/api/calendar/v3"
 )
 
-type CalendarService interface { // Interface que define os métodos que devem ser implementados por um serviço de calendário
+type CalendarService interface {
 	InitializeService(ctx context.Context, config *oauth2.Config, token *oauth2.Token) (CalendarAPI, error)
 	AddGuestToEvent(ctx context.Context, service CalendarAPI, hangoutLink, email string) (*calendar.Event, error)
 	FindEventByHangoutLink(ctx context.Context, service CalendarAPI, hangoutLink string) (*calendar.Event, error)
diff --git a/backend/internal/services/email_service.go b/backend/internal/services/email_service.go
index f95f7d6..6e5def1 100644
--- a/backend/internal/services/email_service.go
+++ b/backend/internal/services/email_service.go
@@ -5,6 +5,6 @@ import (
 	"google.golang.org/api/calendar/v3"
 )
 
-type EmailService interface { // Interface que define os métodos que devem ser implementados por um serviço de e-mail
+type EmailService interface {
 	SendMentorshipInvitation(recipient string, eventDetails *calendar.Event, token *oauth2.Token) error
 }
diff --git a/backend/internal/services/gmail_service.go b/backend/internal/services/gmail_service.go
index ddde3fa..523915f 100644
--- a/backend/internal/services/gmail_service.go
+++ b/backend/internal/services/gmail_service.go
@@ -19,14 +19,14 @@ type GmailService struct {
 	token  *oauth2.Token
 }
 
-func NewGmailService(config *oauth2.Config, token *oauth2.Token) EmailService { // Construtor responsável por encapsular a criação de uma instância de GmailService e retornar um ponteiro para ela
+func NewGmailService(config *oauth2.Config, token *oauth2.Token) EmailService {
 	return &GmailService{
 		config: config,
 		token:  token,
 	}
 }
 
-func (gs *GmailService) SendMentorshipInvitation(recipient string, eventDetails *calendar.Event, token *oauth2.Token) error { // Método que envia um convite de mentoria por e-mail
+func (gs *GmailService) SendMentorshipInvitation(recipient string, eventDetails *calendar.Event, token *oauth2.Token) error {
 
 	ctx := context.Background()
 	client := gs.config.Client(ctx, token)
diff --git a/backend/internal/services/google_calendar_service.go b/backend/internal/services/google_calendar_service.go
index b1e5267..dfb3389 100644
--- a/backend/internal/services/google_calendar_service.go
+++ b/backend/internal/services/google_calendar_service.go
@@ -12,13 +12,13 @@ import (
 	"google.golang.org/api/option"
 )
 
-type GoogleCalendarService struct{} // Estrutura que implementa a interface CalendarService
+type GoogleCalendarService struct{}
 
-func NewGoogleCalendarService() CalendarService { // Construtor responsável por encapsular a criação de uma instância de GoogleCalendarService e retornar um ponteiro para ela
+func NewGoogleCalendarService() CalendarService {
 	return &GoogleCalendarService{}
 }
 
-func (gcs *GoogleCalendarService) InitializeService(ctx context.Context, config *oauth2.Config, token *oauth2.Token) (CalendarAPI, error) { // Método que inicializa o serviço de calendário
+func (gcs *GoogleCalendarService) InitializeService(ctx context.Context, config *oauth2.Config, token *oauth2.Token) (CalendarAPI, error) {
 
 	client, err := auth.CreateOAuthClient(ctx, config, token)
 
@@ -34,7 +34,7 @@ func (gcs *GoogleCalendarService) InitializeService(ctx context.Context, config
 	return &RealCalendarService{GoogleCalendar: service}, nil
 }
 
-func (gcs *GoogleCalendarService) FindEventByHangoutLink(ctx context.Context, api CalendarAPI, hangoutLink string) (*calendar.Event, error) { // Método que recebe um link do Google Meet e retorna o evento correspondente
+func (gcs *GoogleCalendarService) FindEventByHangoutLink(ctx context.Context, api CalendarAPI, hangoutLink string) (*calendar.Event, error) {
 
 	events, err := api.EventsList("primary").Do()
 
@@ -51,7 +51,7 @@ func (gcs *GoogleCalendarService) FindEventByHangoutLink(ctx context.Context, ap
 	return nil, fmt.Errorf("event with HangoutLink %s not found", hangoutLink)
 }
 
-func (gcs *GoogleCalendarService) AddGuestToEvent(ctx context.Context, api CalendarAPI, hangoutLink, email string) (*calendar.Event, error) { // Método que adiciona um convidado a um evento
+func (gcs *GoogleCalendarService) AddGuestToEvent(ctx context.Context, api CalendarAPI, hangoutLink, email string) (*calendar.Event, error) {
 
 	eventDetails, err := gcs.FindEventByHangoutLink(ctx, api, hangoutLink)
 

From e39e812a8522587c56b051ed3d1ffe4083bd78fb Mon Sep 17 00:00:00 2001
From: Marcos Fonseca <contato@marcosfonseca.com.br>
Date: Wed, 24 Jul 2024 17:28:58 -0300
Subject: [PATCH 11/11] Movendo template de PR para .github

---
 .../pull_request_template.md                  | 62 -------------------
 1 file changed, 62 deletions(-)
 delete mode 100644 .github/PULL_REQUEST_TEMPLATE/pull_request_template.md

diff --git a/.github/PULL_REQUEST_TEMPLATE/pull_request_template.md b/.github/PULL_REQUEST_TEMPLATE/pull_request_template.md
deleted file mode 100644
index c3e7a7f..0000000
--- a/.github/PULL_REQUEST_TEMPLATE/pull_request_template.md
+++ /dev/null
@@ -1,62 +0,0 @@
-## Descrição
-
-Este pull request introduz melhorias no template HTML da página de erro. A principal melhoria é o aumento do tamanho da fonte do código de erro e da mensagem para torná-los mais destacados e fáceis de ler.
-
-## Mudanças Realizadas
-
-1. **Aumento do Tamanho da Fonte**:
-    - Adicionadas estilos CSS personalizados para aumentar o tamanho da fonte do código de erro e da mensagem.
-    - Aplicadas classes utilitárias do Tailwind CSS para garantir que o texto esteja centralizado.
-
-### Arquivos Modificados
-
-- `templates/web/error.html`: Estrutura HTML atualizada e adição de estilos personalizados.
-
-### Mudanças Detalhadas
-
-- **Tamanho da Fonte do Código de Erro**:
-    - Adicionada a classe CSS `.error-code` com `font-size: 4rem;` para aumentar o tamanho da fonte do código de erro.
-- **Tamanho da Fonte da Mensagem de Erro**:
-    - Adicionada a classe CSS `.error-message` com `font-size: 1.5rem;` para aumentar o tamanho da fonte da mensagem de erro.
-- **Alinhamento Central**:
-    - Aplicada a classe `text-center` do Tailwind CSS para centralizar o texto dentro do contêiner.
-
-## Antes e Depois
-
-### Antes
-
-![Screenshot Antes](link_para_screenshot_antes)
-
-### Depois
-
-![Screenshot Depois](link_para_screenshot_depois)
-
-## Motivação e Contexto
-
-O tamanho da fonte anterior para o código de erro e a mensagem era muito pequeno, dificultando para os usuários identificarem e entenderem rapidamente o erro. Aumentar o tamanho da fonte melhora a legibilidade e a experiência do usuário.
-
-## Como Isso Foi Testado?
-
-- Testado manualmente a página de erro para garantir que os novos tamanhos de fonte sejam aplicados corretamente e o texto permaneça centralizado.
-
-## Issue Relacionada
-
-- [Issue #123](link_para_issue_relacionada)
-
-## Tipos de Mudanças
-
-- [ ] Correção de bug (mudança que não quebra a compatibilidade e corrige um problema)
-- [x] Nova funcionalidade (mudança que não quebra a compatibilidade e adiciona uma funcionalidade)
-- [ ] Mudança que quebra a compatibilidade (correção ou funcionalidade que causa uma mudança em funcionalidades existentes)
-
-## Checklist
-
-- [x] Meu código segue o estilo de código deste projeto.
-- [x] Minha mudança requer uma mudança na documentação.
-- [x] Eu atualizei a documentação conforme necessário.
-- [ ] Eu adicionei testes para cobrir minhas mudanças.
-- [x] Todos os novos e antigos testes passaram.
-
-## Notas Adicionais
-
-- Qualquer informação ou contexto adicional que os revisores possam precisar saber.