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email.go
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package emailt
import (
"fmt"
"io"
"github.com/gochore/emailt/internal/rend"
"github.com/gochore/emailt/style"
)
type Email struct {
elements []Element
theme style.Theme
}
type Option func(email *Email)
func WithTheme(theme style.Theme) Option {
return func(email *Email) {
email.theme = theme
}
}
func NewEmail(options ...Option) *Email {
ret := &Email{
theme: DefaultTheme,
}
for _, option := range options {
option(ret)
}
return ret
}
func (e *Email) Add(element ...Element) *Email {
e.elements = append(e.elements, element...)
return e
}
func (e *Email) Render(writer io.Writer) error {
render := rend.NewFmtWriter(writer)
render.Print(`
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
</head>
<body>
`)
for _, element := range e.elements {
if err := element.Render(writer, e.theme); err != nil {
return fmt.Errorf("render: %w", err)
}
}
render.Print(`
</body>
</html>
`)
return render.Err()
}