feat(gateway): 优化gateway相关功能

drivers/email/email.go

@@ -3,38 +3,31 @@ package email
 import (
 	"context"
 	"fmt"
+	"sort"
 	"strings"
 	"sync"
 
-	"github.com/ssdomei232/goodBaby/model"
+	"github.com/ssdomei232/goodBaby/internal/retry"
 )
 
-// SendMail 向规则配置里的所有地址发送邮件。
+// SendMail 用给定 SMTP 账号向规则配置里的所有地址发送邮件。
 //
-// 每个地址单独重试，互不阻塞；全部失败/部分失败都会汇总成错误返回，
+// 每个地址单独重试、互不阻塞；全部失败/部分失败都会汇总成错误返回，
 // 由 runner 记录到执行日志中。
-func SendMail(ctx context.Context, rule *model.Rule) error {
-	emailRule, err := GetEmailRuleFromRule(rule)
-	if err != nil {
-		return fmt.Errorf("获取邮件规则配置失败: %w", err)
-	}
-
-	accountConfig, err := GetEmailAccountFromRule(rule)
-	if err != nil {
-		return fmt.Errorf("获取邮件账户配置失败: %w", err)
-	}
-
+func SendMail(ctx context.Context, account *EmailAccountConfig, config *EmailRule) error {
 	var (
 		wg    sync.WaitGroup
 		mu    sync.Mutex
 		fails []string
 	)
 
-	for _, destination := range emailRule.Destinations {
+	for _, destination := range config.Destinations {
 		wg.Add(1)
 		go func(address string) {
 			defer wg.Done()
-			if err := sendMailMsgWithRetry(ctx, accountConfig, emailRule, address); err != nil {
+			if err := retry.Do(ctx, func() error {
+				return sendMail(ctx, account, config, address)
+			}); err != nil {
 				mu.Lock()
 				fails = append(fails, fmt.Sprintf("%s: %v", address, err))
 				mu.Unlock()
@@ -44,8 +37,10 @@ func SendMail(ctx context.Context, rule *model.Rule) error {
 	wg.Wait()
 
 	if len(fails) > 0 {
+		// 并发发送的顺序不确定，排序后错误信息才是稳定的
+		sort.Strings(fails)
 		return fmt.Errorf("%d/%d 封邮件发送失败: %s",
-			len(fails), len(emailRule.Destinations), strings.Join(fails, "; "))
+			len(fails), len(config.Destinations), strings.Join(fails, "; "))
 	}
 	return nil
 }