pop/email.go

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package main
import (
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"bytes"
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"os"
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"path/filepath"
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"strings"
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tea "github.com/charmbracelet/bubbletea"
"github.com/resendlabs/resend-go"
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"github.com/yuin/goldmark"
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)
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const TO_SEPARATOR = ","
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// sendEmailSuccessMsg is the tea.Msg handled by Bubble Tea when the email has
// been sent successfully.
type sendEmailSuccessMsg struct{}
// sendEmailFailureMsg is the tea.Msg handled by Bubble Tea when the email has
// failed to send.
type sendEmailFailureMsg error
// sendEmailCmd returns a tea.Cmd that sends the email.
func (m Model) sendEmailCmd() tea.Cmd {
return func() tea.Msg {
attachments := make([]string, len(m.Attachments.Items()))
for i, a := range m.Attachments.Items() {
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attachments[i] = a.FilterValue()
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}
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err := sendEmail(strings.Split(m.To.Value(), TO_SEPARATOR), m.From.Value(), m.Subject.Value(), m.Body.Value(), attachments)
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if err != nil {
return sendEmailFailureMsg(err)
}
return sendEmailSuccessMsg{}
}
}
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func sendEmail(to []string, from, subject, body string, paths []string) error {
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client := resend.NewClient(os.Getenv(RESEND_API_KEY))
html := bytes.NewBufferString("")
// If the conversion fails, we'll simply send the plain-text body.
_ = goldmark.Convert([]byte(body), html)
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attachments := make([]resend.Attachment, len(paths))
for i, a := range paths {
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f, err := os.ReadFile(a)
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if err != nil {
continue
}
attachments[i] = resend.Attachment{
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Content: string(f),
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Filename: filepath.Base(a),
}
}
if len(attachments) == 0 {
attachments = nil
}
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request := &resend.SendEmailRequest{
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From: from,
To: to,
Subject: subject,
Html: html.String(),
Text: body,
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Attachments: attachments,
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}
_, err := client.Emails.Send(request)
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if err != nil {
return err
}
return nil
}