优化结构

internal/biz/email.go

@@ -1,48 +0,0 @@
-package biz
-
-import (
-	"context"
-	"errors"
-	"strings"
-)
-
-type EmailRepo interface {
-	Send(context.Context, []string, string, string) error
-	DefaultRecipients() []string
-	Enabled() bool
-}
-
-type EmailUsecase struct{ repo EmailRepo }
-
-func NewEmailUsecase(repo EmailRepo) *EmailUsecase { return &EmailUsecase{repo: repo} }
-
-func (uc *EmailUsecase) Send(ctx context.Context, to, subject, body string) error {
-	return uc.repo.Send(ctx, strings.Split(to, ","), subject, body)
-}
-
-func (uc *EmailUsecase) Test(ctx context.Context) error {
-	recipients := uc.repo.DefaultRecipients()
-	if len(recipients) == 0 {
-		return errors.New("未配置测试邮件收件人")
-	}
-	return uc.repo.Send(ctx, recipients, "test", "test")
-}
-
-func (uc *EmailUsecase) Alert(ctx context.Context, subject, body string) error {
-	if !uc.repo.Enabled() {
-		return nil
-	}
-	// ErrorToEmail splits the configured comma-separated recipient
-	// string, while its explicit test endpoint deliberately sends the whole
-	// value as one recipient. Keep those two contracts separate.
-	configured := uc.repo.DefaultRecipients()
-	recipients := make([]string, 0, len(configured))
-	for _, value := range configured {
-		parts := strings.Split(value, ",")
-		if len(parts) > 1 && parts[len(parts)-1] == "" {
-			parts = parts[:len(parts)-1]
-		}
-		recipients = append(recipients, parts...)
-	}
-	return uc.repo.Send(ctx, recipients, subject, body)
-}