Add PrestashopClient and PrestashopProxyController for API integration

api/src/main/java/fr/gameovergne/api/controller/PrestashopProxyController.java

@@ -0,0 +1,76 @@
+package fr.gameovergne.api.controller;
+
+import fr.gameovergne.api.service.PrestashopClient;
+import jakarta.servlet.http.HttpServletRequest;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/api/ps")
+public class PrestashopProxyController {
+
+    private final PrestashopClient prestashopClient;
+
+    public PrestashopProxyController(PrestashopClient prestashopClient) {
+        this.prestashopClient = prestashopClient;
+    }
+
+    private String extractPath(HttpServletRequest request) {
+        return request.getRequestURI().replaceFirst("^/api/ps", ""); // => /products, /categories, ...
+    }
+
+    // ---------- GET ----------
+    @GetMapping("/**")
+    public ResponseEntity<String> proxyGet(HttpServletRequest request) {
+        String path = extractPath(request);
+        String query = request.getQueryString();
+        String body = prestashopClient.get(path, query);
+
+        return ResponseEntity
+                .ok()
+                .contentType(MediaType.APPLICATION_JSON)
+                .body(body);
+    }
+
+    // ---------- POST ----------
+    @PostMapping("/**")
+    public ResponseEntity<String> proxyPost(HttpServletRequest request,
+                                            @RequestBody String xmlBody) {
+        String path = extractPath(request);
+        String query = request.getQueryString();
+        String body = prestashopClient.post(path, query, xmlBody);
+
+        return ResponseEntity
+                .ok()
+                .contentType(MediaType.APPLICATION_JSON)
+                .body(body);
+    }
+
+    // ---------- PUT ----------
+    @PutMapping("/**")
+    public ResponseEntity<String> proxyPut(HttpServletRequest request,
+                                           @RequestBody String xmlBody) {
+        String path = extractPath(request);
+        String query = request.getQueryString();
+        String body = prestashopClient.put(path, query, xmlBody);
+
+        return ResponseEntity
+                .ok()
+                .contentType(MediaType.APPLICATION_JSON)
+                .body(body);
+    }
+
+    // ---------- DELETE ----------
+    @DeleteMapping("/**")
+    public ResponseEntity<String> proxyDelete(HttpServletRequest request) {
+        String path = extractPath(request);
+        String query = request.getQueryString();
+        String body = prestashopClient.delete(path, query);
+
+        return ResponseEntity
+                .ok()
+                .contentType(MediaType.APPLICATION_JSON)
+                .body(body);
+    }
+}

api/src/main/java/fr/gameovergne/api/service/PrestashopClient.java

@@ -0,0 +1,168 @@
+package fr.gameovergne.api.service;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.*;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import java.util.List;
+
+@Service
+public class PrestashopClient {
+
+    private static final Logger log = LoggerFactory.getLogger(PrestashopClient.class);
+
+    private final RestTemplate restTemplate = new RestTemplate();
+    private final String baseUrl;
+    private final String basicAuth; // base64 SANS le "Basic "
+
+    public PrestashopClient(
+            @Value("${prestashop.base-url}") String baseUrl,
+            @Value("${prestashop.basic-auth}") String basicAuth
+    ) {
+        this.baseUrl = baseUrl;
+        this.basicAuth = basicAuth;
+    }
+
+    // ========== GET ==========
+    public String get(String path, String ignoredQuery) {
+        UriComponentsBuilder builder = UriComponentsBuilder
+                .fromHttpUrl(baseUrl)
+                .path("/api")
+                .path(path)
+                .queryParam("output_format", "JSON")
+                .queryParam("display", "full");
+
+        String url = builder.build(true).toUriString();
+        log.info("[PrestaShop] GET {}");
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.set(HttpHeaders.AUTHORIZATION, "Basic " + basicAuth);
+        headers.setAccept(List.of(MediaType.APPLICATION_JSON));
+
+        HttpEntity<Void> entity = new HttpEntity<>(headers);
+
+        ResponseEntity<String> response = restTemplate.exchange(
+                url,
+                HttpMethod.GET,
+                entity,
+                String.class
+        );
+        log.info("[PrestaShop] Réponse GET {} pour {}");
+        if (!response.getStatusCode().is2xxSuccessful()) {
+            throw new RuntimeException("PrestaShop returned non-2xx status: "
+                    + response.getStatusCode() + " for URL " + url);
+        }
+
+        return response.getBody();
+    }
+
+    // ========== POST ==========
+    public String post(String path, String query, String xmlBody) {
+        UriComponentsBuilder builder = UriComponentsBuilder
+                .fromHttpUrl(baseUrl)
+                .path("/api")
+                .path(path);
+
+        if (query != null && !query.isBlank()) {
+            builder.query(query); // on laisse Angular décider si besoin
+        }
+
+        String url = builder.build(true).toUriString();
+        log.info("[PrestaShop] POST {}");
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.set(HttpHeaders.AUTHORIZATION, "Basic " + basicAuth);
+        headers.setContentType(MediaType.APPLICATION_XML);          // <-- XML obligatoire
+        headers.setAccept(List.of(MediaType.APPLICATION_JSON));
+
+        HttpEntity<String> entity = new HttpEntity<>(xmlBody, headers);
+
+        ResponseEntity<String> response = restTemplate.exchange(
+                url,
+                HttpMethod.POST,
+                entity,
+                String.class
+        );
+        log.info("[PrestaShop] Réponse POST {} pour {}");
+        if (!response.getStatusCode().is2xxSuccessful()) {
+            throw new RuntimeException("PrestaShop returned non-2xx status: "
+                    + response.getStatusCode() + " for URL " + url);
+        }
+
+        return response.getBody();
+    }
+
+    // ========== PUT ==========
+    public String put(String path, String query, String xmlBody) {
+        UriComponentsBuilder builder = UriComponentsBuilder
+                .fromHttpUrl(baseUrl)
+                .path("/api")
+                .path(path);
+
+        if (query != null && !query.isBlank()) {
+            builder.query(query);
+        }
+
+        String url = builder.build(true).toUriString();
+        log.info("[PrestaShop] PUT {}");
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.set(HttpHeaders.AUTHORIZATION, "Basic " + basicAuth);
+        headers.setContentType(MediaType.APPLICATION_XML);          // <-- XML
+        headers.setAccept(List.of(MediaType.APPLICATION_JSON));
+
+        HttpEntity<String> entity = new HttpEntity<>(xmlBody, headers);
+
+        ResponseEntity<String> response = restTemplate.exchange(
+                url,
+                HttpMethod.PUT,
+                entity,
+                String.class
+        );
+        log.info("[PrestaShop] Réponse PUT {} pour {}");
+        if (!response.getStatusCode().is2xxSuccessful()) {
+            throw new RuntimeException("PrestaShop returned non-2xx status: "
+                    + response.getStatusCode() + " for URL " + url);
+        }
+
+        return response.getBody();
+    }
+
+    // ========== DELETE ==========
+    public String delete(String path, String query) {
+        UriComponentsBuilder builder = UriComponentsBuilder
+                .fromHttpUrl(baseUrl)
+                .path("/api")
+                .path(path);
+
+        if (query != null && !query.isBlank()) {
+            builder.query(query);
+        }
+
+        String url = builder.build(true).toUriString();
+        log.info("[PrestaShop] DELETE {}");
+
+        HttpHeaders headers = new HttpHeaders();
+        headers.set(HttpHeaders.AUTHORIZATION, "Basic " + basicAuth);
+
+        HttpEntity<Void> entity = new HttpEntity<>(headers);
+
+        ResponseEntity<String> response = restTemplate.exchange(
+                url,
+                HttpMethod.DELETE,
+                entity,
+                String.class
+        );
+        log.info("[PrestaShop] Réponse DELETE {} pour {}");
+        if (!response.getStatusCode().is2xxSuccessful()) {
+            throw new RuntimeException("PrestaShop returned non-2xx status: "
+                    + response.getStatusCode() + " for URL " + url);
+        }
+
+        return response.getBody();
+    }
+}