Switch from routes to self-registering handlers to group related routes.

pkg/handlers/contact.go

@@ -0,0 +1,88 @@
+package handlers
+
+import (
+	"fmt"
+
+	"github.com/labstack/echo/v4"
+	"github.com/mikestefanello/pagoda/pkg/context"
+	"github.com/mikestefanello/pagoda/pkg/controller"
+	"github.com/mikestefanello/pagoda/pkg/services"
+	"github.com/mikestefanello/pagoda/templates"
+)
+
+const (
+	routeNameContact       = "contact"
+	routeNameContactSubmit = "contact.submit"
+)
+
+type (
+	Contact struct {
+		mail *services.MailClient
+		controller.Controller
+	}
+
+	contactForm struct {
+		Email      string `form:"email" validate:"required,email"`
+		Department string `form:"department" validate:"required,oneof=sales marketing hr"`
+		Message    string `form:"message" validate:"required"`
+		Submission controller.FormSubmission
+	}
+)
+
+func init() {
+	Register(new(Contact))
+}
+
+func (c *Contact) Init(ct *services.Container) error {
+	c.Controller = controller.NewController(ct)
+	c.mail = ct.Mail
+	return nil
+}
+
+func (c *Contact) Routes(g *echo.Group) {
+	g.GET("/contact", c.Page).Name = routeNameContact
+	g.POST("/contact", c.Submit).Name = routeNameContactSubmit
+}
+
+func (c *Contact) Page(ctx echo.Context) error {
+	page := controller.NewPage(ctx)
+	page.Layout = templates.LayoutMain
+	page.Name = templates.PageContact
+	page.Title = "Contact us"
+	page.Form = contactForm{}
+
+	if form := ctx.Get(context.FormKey); form != nil {
+		page.Form = form.(*contactForm)
+	}
+
+	return c.RenderPage(ctx, page)
+}
+
+func (c *Contact) Submit(ctx echo.Context) error {
+	var form contactForm
+	ctx.Set(context.FormKey, &form)
+
+	// Parse the form values
+	if err := ctx.Bind(&form); err != nil {
+		return c.Fail(err, "unable to bind form")
+	}
+
+	if err := form.Submission.Process(ctx, form); err != nil {
+		return c.Fail(err, "unable to process form submission")
+	}
+
+	if !form.Submission.HasErrors() {
+		err := c.mail.
+			Compose().
+			To(form.Email).
+			Subject("Contact form submitted").
+			Body(fmt.Sprintf("The message is: %s", form.Message)).
+			Send(ctx)
+
+		if err != nil {
+			return c.Fail(err, "unable to send email")
+		}
+	}
+
+	return c.Page(ctx)
+}