progress on integration to sbz

src/main/java/zw/qantra/tm/domain/services/ProviderService.java

@@ -1,5 +1,6 @@
 package zw.qantra.tm.domain.services;
 
+import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 
 import org.springframework.beans.factory.annotation.Value;
@@ -11,25 +12,22 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 
 import zw.qantra.tm.domain.dtos.SBZProductDto;
 import zw.qantra.tm.domain.models.Provider;
-import zw.qantra.tm.domain.repositories.ChargeRepository;
 import zw.qantra.tm.domain.repositories.ProviderRepository;
 import zw.qantra.tm.rest.RestService;
 
 import java.util.*;
+import java.util.stream.Collectors;
 
 @Service
 @RequiredArgsConstructor
 public class ProviderService {
+    @Getter
     private final ProviderRepository providerRepository;
     private final RestService restService;
 
     @Value("${sbz.aggregator.url}")
     private String aggregatorUrl;
 
-    public ProviderRepository getProviderRepository() {
-        return providerRepository;
-    }
-
     public List<SBZProductDto> getProviderProducts(UUID providerId) {
         String token = restService.getMerchantToken();
 
@@ -57,8 +55,36 @@ public class ProviderService {
         return products;
     }
 
-    public List<Provider> getProviders() {
-        return providerRepository.findAll();
+    public Object getProviders(String category) {
+        String token = restService.getMerchantToken();
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.setContentType(MediaType.APPLICATION_JSON);
+        headers.setAccept(Collections.singletonList(MediaType.APPLICATION_JSON));
+        headers.setBearerAuth(token);
+
+        List<Provider> existingProviders;
+        if (category != null) {
+            existingProviders = getProviderRepository().findByCategory(category);
+        } else {
+            existingProviders = getProviderRepository().findAll();
+        }
+
+        List<String> existingProviderIds = existingProviders.stream()
+            .map(Provider::getClientId)
+            .collect(Collectors.toList());
+        String existingProviderIdsString = String.join(",", existingProviderIds);
+
+        LinkedHashMap response = this.restService.getAs(
+            aggregatorUrl + "/merchant/aggregation/providers?supportedCurrencies=USD&clientIdIn=" + existingProviderIdsString,
+            headers,
+            LinkedHashMap.class
+        );
+
+        LinkedHashMap body = (LinkedHashMap) response.get("body");
+        List<LinkedHashMap> content = (List<LinkedHashMap>) body.get("content");
+
+        return content;
     }
 
     public Optional<Provider> getProvider(UUID id) {