47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
package email
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import (
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"context"
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"fmt"
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"sort"
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"strings"
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"sync"
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"github.com/ssdomei232/goodBaby/internal/retry"
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)
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// SendMail 用给定 SMTP 账号向规则配置里的所有地址发送邮件。
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//
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// 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，
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// 由 runner 记录到执行日志中。
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func SendMail(ctx context.Context, account *EmailAccountConfig, config *EmailRule) error {
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var (
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wg sync.WaitGroup
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mu sync.Mutex
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fails []string
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)
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for _, destination := range config.Destinations {
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wg.Add(1)
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go func(address string) {
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defer wg.Done()
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if err := retry.Do(ctx, func() error {
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return sendMail(ctx, account, config, address)
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}); err != nil {
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mu.Lock()
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fails = append(fails, fmt.Sprintf("%s: %v", address, err))
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mu.Unlock()
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}
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}(destination)
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}
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wg.Wait()
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if len(fails) > 0 {
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// 并发发送的顺序不确定，排序后错误信息才是稳定的
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sort.Strings(fails)
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return fmt.Errorf("%d/%d 封邮件发送失败: %s",
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len(fails), len(config.Destinations), strings.Join(fails, "; "))
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}
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return nil
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}
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