Email integration with PEC and MAILGUN services using api call.

src/main/java/net/gepafin/tendermanagement/service/impl/PecEmailService.java

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+package net.gepafin.tendermanagement.service.impl;
+
+import lombok.extern.slf4j.Slf4j;
+import net.gepafin.tendermanagement.model.request.EmailConfig;
+import net.gepafin.tendermanagement.model.request.PecEmailRequest;
+import net.gepafin.tendermanagement.service.feignClient.PecFeignClient;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Slf4j
+@Service
+public class PecEmailService implements EmailService {
+    private final PecFeignClient pecFeignClient;
+
+    public PecEmailService(PecFeignClient pecFeignClient) {
+
+        this.pecFeignClient = pecFeignClient;
+    }
+
+    @Override
+    public void sendEmail(String subject, String body, List<String> recipientEmails, EmailConfig emailConfig) {
+        PecEmailRequest emailRequest = new PecEmailRequest();
+        emailRequest.setSender(emailConfig.getSender());
+        emailRequest.setRecipient(recipientEmails);
+        emailRequest.setSubject(subject);
+        emailRequest.setBody(body);
+        emailRequest.setUsername(emailConfig.getUsername());
+        emailRequest.setPassword(emailConfig.getPassword());
+
+        String authToken = emailConfig.getAuthToken();
+        ResponseEntity<Void> response = pecFeignClient.sendEmail("Bearer " + authToken, emailRequest);
+        log.info("Mail response status: {}, headers: {}, body: {}", response.getStatusCode(), response.getHeaders(), response.getBody());
+        if (!response.getStatusCode().is2xxSuccessful()) {
+            throw new RuntimeException("Failed to send email via PEC: " + response.getStatusCode());
+        }
+    }
+}
+
+