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+<?php
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+/**
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+ * lib/mailer.php
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+ *
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+ * PHPMailer wrapper. All email sending goes through sendMail().
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+ *
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+ * Requires: vendor/autoload.php (run `composer install`)
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+ * config/mail.php (SMTP constants)
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+ */
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+
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+use PHPMailer\PHPMailer\PHPMailer;
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+use PHPMailer\PHPMailer\SMTP;
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+use PHPMailer\PHPMailer\Exception as MailerException;
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+
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+require_once __DIR__ . '/../config/mail.php';
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+
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+/**
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+ * Send an email via SMTP.
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+ *
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+ * @param string $toEmail Recipient address
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+ * @param string $toName Recipient display name
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+ * @param string $subject Email subject
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+ * @param string $htmlBody HTML message body
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+ * @param string|null $textBody Plain-text fallback (auto-stripped from HTML if null)
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+ *
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+ * @return array{success: bool, error: string}
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+ */
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+function sendMail(string $toEmail, string $toName, string $subject, string $htmlBody, ?string $textBody = null): array
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+{
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+ $mail = new PHPMailer(true);
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+
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+ try {
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+ $mail->isSMTP();
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+ $mail->Host = MAIL_HOST;
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+ $mail->SMTPAuth = true;
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+ $mail->Username = MAIL_USERNAME;
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+ $mail->Password = MAIL_PASSWORD;
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+ $mail->SMTPSecure = MAIL_ENCRYPTION === 'ssl' ? PHPMailer::ENCRYPTION_SMTPS : PHPMailer::ENCRYPTION_STARTTLS;
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+ $mail->Port = MAIL_PORT;
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+ $mail->CharSet = 'UTF-8';
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+
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+ $mail->setFrom(MAIL_FROM, MAIL_FROM_NAME);
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+ $mail->addAddress($toEmail, $toName);
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+
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+ $mail->isHTML(true);
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+ $mail->Subject = $subject;
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+ $mail->Body = $htmlBody;
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+ $mail->AltBody = $textBody ?? strip_tags($htmlBody);
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+
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+ $mail->send();
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+ return ['success' => true, 'error' => ''];
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+
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+ } catch (MailerException $e) {
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+ error_log('Mailer error to ' . $toEmail . ': ' . $mail->ErrorInfo);
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+ return ['success' => false, 'error' => $mail->ErrorInfo];
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+ }
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+}
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+
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+/**
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+ * Send a password reset email.
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+ */
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+function sendPasswordResetEmail(string $email, string $token): bool
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+{
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+ $resetUrl = 'https://cropmonitor.com.au/login/reset-password.php?token=' . urlencode($token);
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+
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+ $html = '
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+<!DOCTYPE html>
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+<html>
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+<body style="font-family:Arial,sans-serif;background:#f4f4f4;padding:20px;">
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+ <div style="max-width:560px;margin:0 auto;background:#fff;border-radius:6px;padding:32px;">
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+ <h2 style="color:#2d6a2d;">Crop Monitor — Password Reset</h2>
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+ <p>We received a request to reset your password. Click the button below to choose a new one.</p>
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+ <p style="margin:28px 0;text-align:center;">
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+ <a href="' . htmlspecialchars($resetUrl, ENT_QUOTES, 'UTF-8') . '"
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+ style="background:#2d6a2d;color:#fff;padding:12px 28px;border-radius:4px;text-decoration:none;font-size:15px;">
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+ Reset My Password
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+ </a>
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+ </p>
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+ <p style="color:#666;font-size:13px;">This link expires in <strong>1 hour</strong>. If you did not request a password reset, you can safely ignore this email.</p>
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+ <hr style="border:none;border-top:1px solid #eee;margin:24px 0;">
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+ <p style="color:#999;font-size:12px;">Crop Monitor — Australian Crop Management Platform</p>
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+ </div>
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+</body>
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+</html>';
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+
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+ $text = "Crop Monitor — Password Reset\n\n"
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+ . "Click the link below to reset your password (expires in 1 hour):\n\n"
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+ . $resetUrl . "\n\n"
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+ . "If you did not request this, ignore this email.";
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+
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+ $result = sendMail($email, $email, 'Reset your Crop Monitor password', $html, $text);
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+ return $result['success'];
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+}
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+
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+/**
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+ * Send a welcome email after registration.
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+ */
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+function sendWelcomeEmail(string $email, string $fullname): bool
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+{
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+ $loginUrl = 'https://cropmonitor.com.au/login/login.php';
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+
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+ $html = '
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+<!DOCTYPE html>
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+<html>
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+<body style="font-family:Arial,sans-serif;background:#f4f4f4;padding:20px;">
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+ <div style="max-width:560px;margin:0 auto;background:#fff;border-radius:6px;padding:32px;">
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+ <h2 style="color:#2d6a2d;">Welcome to Crop Monitor!</h2>
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+ <p>Hi ' . htmlspecialchars($fullname, ENT_QUOTES, 'UTF-8') . ',</p>
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+ <p>Your account has been created. You can now log in and start managing your crop analysis records.</p>
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+ <p style="margin:28px 0;text-align:center;">
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+ <a href="' . htmlspecialchars($loginUrl, ENT_QUOTES, 'UTF-8') . '"
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+ style="background:#2d6a2d;color:#fff;padding:12px 28px;border-radius:4px;text-decoration:none;font-size:15px;">
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+ Go to Crop Monitor
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+ </a>
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+ </p>
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+ <p style="color:#666;font-size:13px;">If you have any questions, reply to this email and we will get back to you.</p>
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+ <hr style="border:none;border-top:1px solid #eee;margin:24px 0;">
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+ <p style="color:#999;font-size:12px;">Crop Monitor — Australian Crop Management Platform</p>
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+ </div>
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+</body>
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+</html>';
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+
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+ $text = "Welcome to Crop Monitor, {$fullname}!\n\n"
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+ . "Your account has been created. Log in here:\n\n"
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+ . $loginUrl . "\n\n"
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+ . "If you have any questions, reply to this email.";
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+
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+ $result = sendMail($email, $fullname, 'Welcome to Crop Monitor', $html, $text);
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+ return $result['success'];
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+}
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