Files
probo/pkg/coredata/email.go
gearnode 9edb5f31d0 Add mailer system
Signed-off-by: gearnode <bryan@frimin.fr>
2025-03-12 09:04:51 +01:00

134 lines
3.1 KiB
Go

// Copyright (c) 2025 Probo Inc <hello@getprobo.com>.
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
package coredata
import (
"context"
"errors"
"fmt"
"time"
"github.com/getprobo/probo/pkg/gid"
"github.com/jackc/pgx/v5"
"go.gearno.de/kit/pg"
)
type (
Email struct {
ID gid.GID `db:"id"`
RecipientEmail string `db:"recipient_email"`
RecipientName string `db:"recipient_name"`
Subject string `db:"subject"`
TextBody string `db:"text_body"`
CreatedAt time.Time `db:"created_at"`
UpdatedAt time.Time `db:"updated_at"`
SentAt *time.Time `db:"sent_at"`
}
)
var (
ErrNoUnsentEmail = errors.New("no unsent email found")
)
func NewEmail(
recipientName string,
recipientEmail string,
subject string,
body string,
) *Email {
return &Email{
ID: gid.New(gid.NilTenant, EmailEntityType),
RecipientName: recipientName,
RecipientEmail: recipientEmail,
Subject: subject,
TextBody: body,
}
}
func (e *Email) Insert(
ctx context.Context,
conn pg.Conn,
) error {
q := `
INSERT INTO emails (id, recipient_email, recipient_name, subject, text_body, created_at, updated_at)
VALUES (@id, @recipient_email, @recipient_name, @subject, @text_body, @created_at, @updated_at)
`
args := pgx.StrictNamedArgs{
"id": e.ID,
"recipient_email": e.RecipientEmail,
"recipient_name": e.RecipientName,
"subject": e.Subject,
"text_body": e.TextBody,
"created_at": e.CreatedAt,
"updated_at": e.UpdatedAt,
}
_, err := conn.Exec(ctx, q, args)
return err
}
func (e *Email) LoadNextUnsentForUpdate(
ctx context.Context,
conn pg.Conn,
) error {
q := `
SELECT id, recipient_email, recipient_name, subject, text_body, created_at, updated_at, sent_at
FROM emails
WHERE sent_at IS NULL
ORDER BY created_at ASC
LIMIT 1
FOR UPDATE
`
rows, err := conn.Query(ctx, q)
if err != nil {
return err
}
email, err := pgx.CollectExactlyOneRow(rows, pgx.RowToStructByName[Email])
if err != nil {
if errors.Is(err, pgx.ErrNoRows) {
return ErrNoUnsentEmail
}
return fmt.Errorf("cannot collect email: %w", err)
}
*e = email
return nil
}
func (e *Email) Update(
ctx context.Context,
conn pg.Conn,
) error {
q := `
UPDATE emails
SET sent_at = @sent_at, updated_at = @updated_at
WHERE id = @id
`
args := pgx.StrictNamedArgs{
"id": e.ID,
"sent_at": e.SentAt,
"updated_at": e.UpdatedAt,
}
_, err := conn.Exec(ctx, q, args)
return err
}