1 files changed, 97 insertions, 0 deletions
diff --git a/internal/router/handlers/api-v1-email-send-verification-code.go b/internal/router/handlers/api-v1-email-send-verification-code.go
new file mode 100644
index 0000000..20c5fb6
--- /dev/null
+++ b/internal/router/handlers/api-v1-email-send-verification-code.go
@@ -0,0 +1,97 @@
+package handlers
+
+import (
+	"fmt"
+	"html/template"
+	"log/slog"
+	"strings"
+
+	"github.com/SayaAndy/saya-today-web/internal/router"
+	"github.com/gofiber/fiber/v2"
+)
+
+type SendVerificationCodeHandler struct {
+	router.BasicHandler
+}
+
+func init() {
+	router.Routes = append(router.Routes, &SendVerificationCodeHandler{})
+}
+
+func (r *SendVerificationCodeHandler) Filter() (method string, path string) {
+	return "POST", "/api/v1/email/send-verification-code"
+}
+
+func (r *SendVerificationCodeHandler) IsTemplated() bool {
+	return false
+}
+
+func (r *SendVerificationCodeHandler) TemplatesToInject() []string {
+	return []string{"views/partials/personal-page-status.html"}
+}
+
+func (r *SendVerificationCodeHandler) ToCache() router.CacheSetting {
+	return router.Disabled
+}
+
+func (r *SendVerificationCodeHandler) ToValidateLang() router.LangSetting {
+	return router.InReferer
+}
+
+func (r *SendVerificationCodeHandler) Render(c *fiber.Ctx, supplements *router.Supplements, lang string, templateMap fiber.Map) (statusCode int, err error) {
+	id := c.IP()
+	templateMap["StatusId"] = "email-message"
+
+	email := c.FormValue("email")
+	if email == "" {
+		templateMap["Status"] = "Failed"
+		templateMap["Message"] = supplements.Localization[lang].UserProfile.EmailEmpty
+		return fiber.StatusUnprocessableEntity, nil
+	}
+
+	isTaken, err := supplements.Mailer.MailIsTaken(email)
+	if err != nil {
+		templateMap["Status"] = "Failed"
+		templateMap["Message"] = supplements.Localization[lang].UserProfile.VerificationCodeSendingError
+		slog.Error("failed to check if address is already taken", slog.String("error", err.Error()))
+		return fiber.StatusUnprocessableEntity, nil
+	}
+
+	if isTaken {
+		templateMap["Status"] = "Failed"
+		templateMap["Message"] = supplements.Localization[lang].UserProfile.EmailTaken
+		return fiber.StatusUnprocessableEntity, nil
+	}
+
+	if isAllowed, whenAllowed, _ := supplements.Mailer.IsAllowedToRetryVerification(id); !isAllowed {
+		templateMap["Status"] = "Failed"
+		templateMap["Message"] = strings.ReplaceAll(supplements.Localization[lang].UserProfile.DelayTilVerification, "{}", whenAllowed.Format("2006-01-02 15:04:05 MST"))
+		templateMap["DataAttributes"] = map[string]any{
+			"striked-end-time": template.HTMLAttr(fmt.Sprintf("data-striked-end-time=\"%d\"", whenAllowed.UnixMilli())),
+		}
+		return fiber.StatusUnprocessableEntity, nil
+	}
+
+	if previousEmail, _, _ := supplements.Mailer.GetInfo(supplements.Mailer.GetHash(id)); previousEmail == email {
+		templateMap["Status"] = "Failed"
+		templateMap["Message"] = supplements.Localization[lang].UserProfile.EmailAlreadyValidated
+		return fiber.StatusUnprocessableEntity, nil
+	}
+
+	if err = supplements.Mailer.SendVerificationCode(id, email, lang); err != nil {
+		templateMap["Status"] = "Failed"
+		templateMap["Message"] = supplements.Localization[lang].UserProfile.VerificationCodeSendingError
+		slog.Error("failed to send a verification code", slog.String("error", err.Error()))
+		return fiber.StatusUnprocessableEntity, nil
+	}
+
+	_, endTime, codeExpiry := supplements.Mailer.IsAllowedToRetryVerification(id)
+	templateMap["Status"] = "OK"
+	templateMap["Message"] = supplements.Localization[lang].UserProfile.VerificationCodeSent
+	templateMap["DataAttributes"] = map[string]any{
+		"striked-end-time": template.HTMLAttr(fmt.Sprintf("data-striked-end-time=\"%d\"", endTime.UnixMilli())),
+		"code-expiry-time": template.HTMLAttr(fmt.Sprintf("data-code-expiry-time=\"%d\"", codeExpiry.UnixMilli())),
+	}
+
+	return fiber.StatusOK, nil
+}