customizing to have more events as templates

.env.example

@@ -1,2 +1,4 @@
 SENDGRID_API_KEY=
-SENDGRID_CERTIFICATE_TEMPLATE=
+SENDGRID_CERTIFICATE_TEMPLATE=
+SENDGRID_SENDER_NAME=
+SENDGRID_SENDER_EMAIL=

assets/json/example.json

@@ -3,10 +3,11 @@
         {
             "name": "Campo Mourão",
             "date": "13/09/2022",
+            "template": "devparana_na_estrada_2022",
             "attendants": [
                 {
-                    "name": "Guilherme Siquineli",
-                    "email": "guiseek@gmail.com",
+                    "name": "Fernando Fabricio",
+                    "email": "ferfabricio@gmail.com",
                     "code": "982143f3-fd81-45a6-85ef-7f6281d13235"
                 }
             ]

cmd/generate/main.go

@@ -22,7 +22,7 @@ func main() {
 
 	for i := 0; i < len(c.Cities); i++ {
 		for j := 0; j < len(c.Cities[i].Attendants); j++ {
-			err = pdf.SavePDF(c.Cities[i].Name, c.Cities[i].Date, c.Cities[i].Attendants[j])
+			err = pdf.SavePDF(&c.Cities[i], c.Cities[i].Attendants[j])
 			if err != nil {
 				panic(err)
 			}

internal/data/prepare.go

@@ -15,6 +15,7 @@ type Attendant struct {
 type City struct {
 	Name       string      `json:"name"`
 	Date       string      `json:"date"`
+	Template   string      `json:"template"`
 	Attendants []Attendant `json:"attendants"`
 }
 

internal/email/sender.go

@@ -14,7 +14,7 @@ func Send(a *data.Attendant) error {
 
 	m := mail.NewV3Mail()
 
-	from := mail.NewEmail("DevParaná", "[email protected]")
+	from := mail.NewEmail(os.Getenv("SENDGRID_SENDER_NAME"), os.Getenv("SENDGRID_SENDER_EMAIL"))
 	to := mail.NewEmail(a.Name, a.Email)
 
 	m.SetFrom(from)

internal/pdf/generate.go

@@ -4,53 +4,21 @@ import (
 	"fmt"
 
 	"github.com/ferfabricio/certificados-devparana-go/internal/data"
-	"github.com/signintech/gopdf"
+	"github.com/ferfabricio/certificados-devparana-go/internal/pdf/templates"
 )
 
 // SavePDF generate and save the PDF file
-func SavePDF(city string, date string, attendent data.Attendant) error {
+func SavePDF(city *data.City, attendent data.Attendant) error {
 	var err error
-	pdf := gopdf.GoPdf{}
-	pdf.Start(gopdf.Config{PageSize: *gopdf.PageSizeA4Landscape})
-	pdf.AddPage()
-
-	tpl := pdf.ImportPage("./assets/pdf/template.pdf", 1, "/MediaBox")
-	pdf.UseImportedTemplate(tpl, 0, 0, gopdf.PageSizeA4Landscape.W, gopdf.PageSizeA4Landscape.H)
-
-	err = pdf.AddTTFFont("aleo", "./assets/fonts/Aleo-Bold.ttf")
-	if err != nil {
-		return err
-	}
-	err = pdf.AddTTFFont("opensans", "./assets/fonts/Open-Sans.ttf")
-	if err != nil {
-		return err
-	}
-
-	err = pdf.SetFont("aleo", "", 25)
+	pdf, err := templates.Prepare(attendent, city)
 	if err != nil {
 		return err
 	}
 
-	s, err := pdf.MeasureTextWidth(attendent.Name)
+	err = pdf.WritePdf(fmt.Sprintf("./output/%s.pdf", attendent.Code))
 	if err != nil {
 		return err
 	}
 
-	pdf.SetXY((gopdf.PageSizeA4Landscape.W/2)-(s/2), 270)
-
-	pdf.Text(attendent.Name)
-
-	pdf.SetFont("opensans", "", 13)
-
-	pdf.SetXY(350, 400)
-
-	pdf.Text(city)
-
-	pdf.SetXY(350, 420)
-
-	pdf.Text(date)
-
-	pdf.WritePdf(fmt.Sprintf("./output/%s.pdf", attendent.Code))
-
 	return nil
 }

internal/pdf/templates/devparana_na_estrada.go

@@ -0,0 +1,64 @@
+package templates
+
+import (
+	"github.com/ferfabricio/certificados-devparana-go/internal/data"
+	"github.com/signintech/gopdf"
+)
+
+func DevParanaNaEstrada2022(attendent data.Attendant, city *data.City) (*gopdf.GoPdf, error) {
+	var err error
+
+	pdf := &gopdf.GoPdf{}
+	pdf.Start(gopdf.Config{PageSize: *gopdf.PageSizeA4Landscape})
+	pdf.AddPage()
+
+	tpl := pdf.ImportPage("./assets/pdf/template-devparana-na-estrada-2022.pdf", 1, "/MediaBox")
+	pdf.UseImportedTemplate(tpl, 0, 0, gopdf.PageSizeA4Landscape.W, gopdf.PageSizeA4Landscape.H)
+
+	err = pdf.AddTTFFont("aleo", "./assets/fonts/Aleo-Bold.ttf")
+	if err != nil {
+		return nil, err
+	}
+	err = pdf.AddTTFFont("opensans", "./assets/fonts/Open-Sans.ttf")
+	if err != nil {
+		return nil, err
+	}
+
+	err = pdf.SetFont("aleo", "", 25)
+	if err != nil {
+		return nil, err
+	}
+
+	s, err := pdf.MeasureTextWidth(attendent.Name)
+	if err != nil {
+		return nil, err
+	}
+
+	pdf.SetXY((gopdf.PageSizeA4Landscape.W/2)-(s/2), 270)
+
+	err = pdf.Text(attendent.Name)
+	if err != nil {
+		return nil, err
+	}
+
+	err = pdf.SetFont("opensans", "", 13)
+	if err != nil {
+		return nil, err
+	}
+
+	pdf.SetXY(350, 400)
+
+	err = pdf.Text(city.Name)
+	if err != nil {
+		return nil, err
+	}
+
+	pdf.SetXY(350, 420)
+
+	err = pdf.Text(city.Date)
+	if err != nil {
+		return nil, err
+	}
+
+	return pdf, nil
+}

internal/pdf/templates/factory.go

@@ -0,0 +1,22 @@
+package templates
+
+import (
+	"errors"
+
+	"github.com/ferfabricio/certificados-devparana-go/internal/data"
+	"github.com/signintech/gopdf"
+)
+
+func getTemplate(t string, a data.Attendant, c *data.City, p *gopdf.GoPdf) (*gopdf.GoPdf, error) {
+	switch t {
+	case "devparana_na_estrada_2022":
+		return DevParanaNaEstrada2022(a, c)
+	}
+	return nil, errors.New("template not implemented")
+}
+
+func Prepare(a data.Attendant, c *data.City) (*gopdf.GoPdf, error) {
+	pdf := &gopdf.GoPdf{}
+
+	return getTemplate(c.Template, a, c, pdf)
+}