completed initial charge logic

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

@@ -1,11 +1,87 @@
 package zw.qantra.tm.domain.services;
 
 import lombok.RequiredArgsConstructor;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
 import org.springframework.stereotype.Service;
+
+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.*;
 
 @Service
 @RequiredArgsConstructor
 public class ProviderService {
     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();
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.setContentType(MediaType.APPLICATION_JSON);
+        headers.setAccept(Collections.singletonList(MediaType.APPLICATION_JSON));
+        headers.setBearerAuth(token);
+
+        LinkedHashMap response = this.restService.getAs(
+            aggregatorUrl + "/merchant/aggregation/products?size=100&clientUid=" + providerId.toString(),
+            headers,
+            LinkedHashMap.class
+        );
+
+        LinkedHashMap body = (LinkedHashMap) response.get("body");
+        List<LinkedHashMap> content = (List<LinkedHashMap>) body.get("content");
+
+        List<SBZProductDto> products = new ArrayList<>();
+        for (LinkedHashMap product : content) {
+            ObjectMapper mapper = new ObjectMapper();
+            SBZProductDto productDto = mapper.convertValue(product, SBZProductDto.class);
+            products.add(productDto);
+        }
+
+        return products;
+    }
+
+    public List<Provider> getProviders() {
+        return providerRepository.findAll();
+    }
+
+    public Optional<Provider> getProvider(UUID id) {
+        return providerRepository.findById(id);
+    }
+
+    public Provider createProvider(Provider provider) {
+        return providerRepository.save(provider);
+    }
+
+    public Provider updateProvider(UUID id, Provider provider) {
+        if (providerRepository.existsById(id)) {
+            provider.setId(id);
+            return providerRepository.save(provider);
+        }
+        return null;
+    }
+
+    public boolean deleteProvider(UUID id) {
+        if (providerRepository.existsById(id)) {
+            providerRepository.deleteById(id);
+            return true;
+        }
+        return false;
+    }
 }