customer/internal/interface/client/mail.go
2024-11-26 18:28:42 +03:00

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package client
import (
"bytes"
"fmt"
"gitea.pena/PenaSide/customer/internal/errors"
"gitea.pena/PenaSide/customer/internal/models"
"github.com/gofiber/fiber/v2"
"go.uber.org/zap"
"mime/multipart"
)
type MailClient struct {
apiUrl string
sender string
auth *models.PlainAuth
apiKey string
fiberClient *fiber.Client
logger *zap.Logger
mailAddress string
}
func NewMailClient(deps models.MailClientCfg, logger *zap.Logger) *MailClient {
if deps.FiberClient == nil {
deps.FiberClient = fiber.AcquireClient()
}
return &MailClient{
apiUrl: deps.ApiUrl,
sender: deps.Sender,
auth: deps.Auth,
apiKey: deps.ApiKey,
fiberClient: deps.FiberClient,
logger: logger,
mailAddress: deps.MailAddress,
}
}
func (receiver *MailClient) SendMessage(userEmail string, verification *models.Verification, money float32) errors.Error {
body := fmt.Sprintf("<p>Поступила заявка на оплату через Р/С от пользователя с почтой %s (%s)</p>"+
"<p>Вот файлы его верификации:</p>"+
"<p>Запрос на оплату: %f рублей</p>", userEmail, verification.UserID, money)
for _, file := range verification.Files {
body += fmt.Sprintf("<p>%s: <a href=\"%s\">%s</a></p>", file.Name, file.URL, file.URL)
}
form := new(bytes.Buffer)
writer := multipart.NewWriter(form)
defer writer.Close()
fields := map[string]string{
"from": receiver.sender,
"to": receiver.mailAddress,
"subject": "Новая заявка на оплату через Р/С",
"html": body,
}
for key, value := range fields {
if err := writer.WriteField(key, value); err != nil {
return handleError(receiver.logger, "Error writing form field", err)
}
}
if err := writer.Close(); err != nil {
return handleError(receiver.logger, "Error closing form writer", err)
}
fmt.Println("SEEEEEND", receiver.apiUrl)
req := receiver.fiberClient.Post(receiver.apiUrl).Body(form.Bytes()).ContentType(writer.FormDataContentType())
if receiver.apiKey != "" {
req.Set("Authorization", receiver.apiKey)
}
statusCode, _, errs := req.Bytes()
if errs != nil {
return handleError(receiver.logger, "Error sending request", errs[0])
}
if statusCode != fiber.StatusOK {
err := fmt.Errorf("the SMTP service returned an error: %d", statusCode)
return handleError(receiver.logger, "Error sending email", err)
}
return nil
}
func handleError(logger *zap.Logger, message string, err error) errors.Error {
logger.Error(message, zap.Error(err))
return errors.New(
fmt.Errorf("failed to send email on <SendMessage> of <MailClient>: %w", err),
errors.ErrInternalError,
)
}