From 3ad57c754f94ff07240bdce87545dfe0accae2d8 Mon Sep 17 00:00:00 2001
From: Muyao CHEN <muyao.chen@intersec.com>
Date: Mon, 1 Jul 2024 14:19:38 +0200
Subject: [PATCH] Displaying a response to user after posting form data

---
 cmd/web/main.go                         |  5 ++++
 cmd/web/routes.go                       |  1 +
 internal/handlers/handlers.go           | 34 ++++++++++++++++-----
 templates/reservation-summary.page.tmpl | 39 +++++++++++++++++++++++++
 4 files changed, 71 insertions(+), 8 deletions(-)
 create mode 100644 templates/reservation-summary.page.tmpl

diff --git a/cmd/web/main.go b/cmd/web/main.go
index ee18d48..c6972a1 100644
--- a/cmd/web/main.go
+++ b/cmd/web/main.go
@@ -1,9 +1,11 @@
 package main
 
 import (
+	"encoding/gob"
 	"fmt"
 	"go-udemy-web-1/internal/config"
 	"go-udemy-web-1/internal/handlers"
+	"go-udemy-web-1/internal/models"
 	"go-udemy-web-1/internal/render"
 	"log"
 	"net/http"
@@ -21,6 +23,9 @@ var (
 
 // main is the main application function
 func main() {
+    // what am I going to put in the session
+    gob.Register(models.Reservation{})
+
 	// change this to true when in production
 	app.InProduction = false
 
diff --git a/cmd/web/routes.go b/cmd/web/routes.go
index 5f8d939..f34ea36 100644
--- a/cmd/web/routes.go
+++ b/cmd/web/routes.go
@@ -27,6 +27,7 @@ func routes(app *config.AppConfig) http.Handler {
 	mux.Post("/availability-json", handlers.Repo.AvailabilityJSON)
 	mux.Get("/make-reservation", handlers.Repo.MakeReservation)
 	mux.Post("/make-reservation", handlers.Repo.PostMakeReservation)
+	mux.Get("/reservation-summary", handlers.Repo.ReservationSummary)
 
 	fileServer := http.FileServer(http.Dir("./static/"))
 	mux.Handle("/static/*", http.StripPrefix("/static", fileServer))
diff --git a/internal/handlers/handlers.go b/internal/handlers/handlers.go
index 5f7d15c..a310008 100644
--- a/internal/handlers/handlers.go
+++ b/internal/handlers/handlers.go
@@ -69,16 +69,16 @@ func (m *Repository) Majors(w http.ResponseWriter, r *http.Request) {
 
 // MakeReservation is the make reservation page handler
 func (m *Repository) MakeReservation(w http.ResponseWriter, r *http.Request) {
-    // For the first time render emptyReservation so that this object is
-    // filled with the info when sent back.
-    var emptyReservation models.Reservation
-    data := make(map[string]interface{})
+	// For the first time render emptyReservation so that this object is
+	// filled with the info when sent back.
+	var emptyReservation models.Reservation
+	data := make(map[string]interface{})
 
-    data["reservation"] = emptyReservation
+	data["reservation"] = emptyReservation
 
 	render.RenderTemplate(w, r, "make-reservation.page.tmpl", &models.TemplateData{
 		Form: forms.New(nil),
-        Data: data,
+		Data: data,
 	})
 }
 
@@ -100,8 +100,8 @@ func (m *Repository) PostMakeReservation(w http.ResponseWriter, r *http.Request)
 	form := forms.New(r.PostForm)
 
 	form.Required("first_name", "last_name", "email")
-    form.MinLength("first_name", 2, r)
-    form.IsEmail("email", r)
+	form.MinLength("first_name", 2, r)
+	form.IsEmail("email", r)
 
 	if !form.Valid() {
 		data := make(map[string]interface{})
@@ -113,6 +113,24 @@ func (m *Repository) PostMakeReservation(w http.ResponseWriter, r *http.Request)
 		})
 		return
 	}
+
+	m.App.Session.Put(r.Context(), "reservation", reservation)
+
+	http.Redirect(w, r, "/reservation-summary", http.StatusSeeOther)
+}
+
+func (m *Repository) ReservationSummary(w http.ResponseWriter, r *http.Request) {
+	reservation, ok := m.App.Session.Get(r.Context(), "reservation").(models.Reservation)
+	if !ok {
+		log.Println("connot get item from reservation")
+	}
+
+	data := make(map[string]interface{})
+	data["reservation"] = reservation
+
+	render.RenderTemplate(w, r, "reservation-summary.page.tmpl", &models.TemplateData{
+		Data: data,
+	})
 }
 
 // Availability is the search for availability page handler
diff --git a/templates/reservation-summary.page.tmpl b/templates/reservation-summary.page.tmpl
new file mode 100644
index 0000000..649668e
--- /dev/null
+++ b/templates/reservation-summary.page.tmpl
@@ -0,0 +1,39 @@
+{{template "base" .}}
+{{define "content"}}
+{{$res := index .Data "reservation"}}
+<div class="container">
+    <div class="row">
+        <div class="col mt-5">
+            <h1>Reservation Summary</h1>
+
+            <hr>
+
+            <table class="table table-striped">
+                <thead></thead>
+                <tbody>
+                    <tr>
+                        <td>Name: </td>
+                        <td>{{$res.LastName}} {{$res.FirstName}}</td>
+                    </tr>
+                    <tr>
+                        <td>Arrival: </td>
+                        <td></td>
+                    </tr>
+                    <tr>
+                        <td>Departure: </td>
+                        <td></td>
+                    </tr>
+                    <tr>
+                        <td>Email: </td>
+                        <td>{{$res.Email}}</td>
+                    </tr>
+                    <tr>
+                        <td>Phone: </td>
+                        <td>{{$res.Phone}}</td>
+                    </tr>
+                </tbody>
+            </table>
+        </div>
+    </div>
+</div>
+{{end}}