short links

src/main/java/group/goforward/battlbuilder/BattlBuilderApplication.java

@@ -1,13 +1,16 @@
 package group.goforward.battlbuilder;
 
+import group.goforward.battlbuilder.config.ShortLinksProperties;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.autoconfigure.domain.EntityScan;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.cache.annotation.EnableCaching;
 import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
 
 @SpringBootApplication
 @EnableCaching
+@EnableConfigurationProperties(ShortLinksProperties.class)
 @EntityScan(basePackages = {
         "group.goforward.battlbuilder.model",
         "group.goforward.battlbuilder.enrichment"

src/main/java/group/goforward/battlbuilder/config/SecurityConfig.java

@@ -1,4 +1,4 @@
-package group.goforward.battlbuilder.configuration;
+package group.goforward.battlbuilder.config;
 
 import group.goforward.battlbuilder.security.JwtAuthenticationFilter;
 import org.springframework.context.annotation.Bean;
@@ -50,6 +50,10 @@ public class SecurityConfig {
                         .requestMatchers(HttpMethod.GET, "/api/v1/builds").permitAll()
                         .requestMatchers(HttpMethod.GET, "/api/v1/builds/*").permitAll()
 
+                        // Short links (public redirect)
+                        .requestMatchers(HttpMethod.GET, "/go/**").permitAll()
+                        .requestMatchers(HttpMethod.HEAD, "/go/**").permitAll()
+
                         // ----------------------------
                         // Protected
                         // ----------------------------

src/main/java/group/goforward/battlbuilder/config/ShortLinksProperties.java

@@ -0,0 +1,36 @@
+package group.goforward.battlbuilder.config;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+@ConfigurationProperties(prefix = "shortlinks")
+public class ShortLinksProperties {
+
+    /**
+     * Master switch to enable short links.
+     */
+    private boolean enabled = true;
+
+    /**
+     * The public base URL used when generating links (differs in dev vs prod).
+     * Examples:
+     *  - http://localhost:8080
+     *  - https://bb.ooo
+     */
+    private String publicBaseUrl = "http://localhost:8080";
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    public void setEnabled(boolean enabled) {
+        this.enabled = enabled;
+    }
+
+    public String getPublicBaseUrl() {
+        return publicBaseUrl;
+    }
+
+    public void setPublicBaseUrl(String publicBaseUrl) {
+        this.publicBaseUrl = publicBaseUrl;
+    }
+}

src/main/java/group/goforward/battlbuilder/controllers/GoController.java

@@ -0,0 +1,38 @@
+package group.goforward.battlbuilder.controllers;
+
+import group.goforward.battlbuilder.model.ShortLink;
+import group.goforward.battlbuilder.repos.ShortLinkRepository;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+
+@Controller
+public class GoController {
+
+    private final ShortLinkRepository repo;
+
+    public GoController(ShortLinkRepository repo) {
+        this.repo = repo;
+    }
+
+    @GetMapping("/go/{code}")
+    public ResponseEntity<Void> go(@PathVariable String code) {
+        ShortLink link = repo.findByCodeAndIsActiveTrue(code).orElse(null);
+        if (link == null) return ResponseEntity.notFound().build();
+
+        String dest = link.getDestinationUrl();
+
+        // Future: BUILD share links can compute a frontend URL here
+        // if ("BUILD".equalsIgnoreCase(link.getType()) && link.getBuildUuid() != null) {
+        //     dest = "https://app.battlbuilder.com/build/" + link.getBuildUuid();
+        // }
+
+        if (dest == null || dest.isBlank()) return ResponseEntity.notFound().build();
+
+        return ResponseEntity.status(302)
+                .header(HttpHeaders.LOCATION, dest)
+                .build();
+    }
+}

src/main/java/group/goforward/battlbuilder/controllers/ShortLinkRedirectController.java

@@ -0,0 +1,48 @@
+package group.goforward.battlbuilder.controllers;
+
+import group.goforward.battlbuilder.repos.ShortLinkRepository;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.net.URI;
+
+@RestController
+public class ShortLinkRedirectController {
+
+    private final ShortLinkRepository repo;
+
+    public ShortLinkRedirectController(ShortLinkRepository repo) {
+        this.repo = repo;
+    }
+
+    @GetMapping("/go/{code}")
+    public ResponseEntity<Void> go(@PathVariable String code) {
+        var link = repo.findByCodeAndIsActiveTrue(code)
+                .orElseThrow(() -> new ResponseStatusException(HttpStatus.NOT_FOUND));
+
+        if (!"BUY".equals(link.getType()) || link.getDestinationUrl() == null) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND);
+        }
+
+        return ResponseEntity.status(HttpStatus.FOUND)
+                .location(URI.create(link.getDestinationUrl()))
+                .build();
+    }
+
+    @GetMapping("/b/{code}")
+    public ResponseEntity<Void> build(@PathVariable String code) {
+        var link = repo.findByCodeAndIsActiveTrue(code)
+                .orElseThrow(() -> new ResponseStatusException(HttpStatus.NOT_FOUND));
+
+        if (!"BUILD".equals(link.getType()) || link.getBuildUuid() == null) {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND);
+        }
+
+        // Adjust to your actual frontend route
+        return ResponseEntity.status(HttpStatus.FOUND)
+                .location(URI.create("/builds/" + link.getBuildUuid()))
+                .build();
+    }
+}

src/main/java/group/goforward/battlbuilder/model/ShortLink.java

@@ -0,0 +1,74 @@
+package group.goforward.battlbuilder.model;
+
+import jakarta.persistence.*;
+import org.hibernate.annotations.ColumnDefault;
+import org.hibernate.annotations.UuidGenerator;
+
+import java.time.OffsetDateTime;
+import java.util.UUID;
+
+@Entity
+@Table(
+        name = "short_links",
+        indexes = {
+                @Index(name = "idx_short_links_code", columnList = "code"),
+                @Index(name = "idx_short_links_type_offer", columnList = "type,product_offer_id"),
+                @Index(name = "idx_short_links_type_build", columnList = "type,build_uuid")
+        }
+)
+public class ShortLink {
+
+    @Id
+    @GeneratedValue
+    @UuidGenerator
+    @Column(name = "id", nullable = false)
+    private UUID id;
+
+    @Column(name = "code", nullable = false, unique = true, length = 12)
+    private String code;
+
+    // BUY | BUILD
+    @Column(name = "type", nullable = false, length = 20)
+    private String type;
+
+    @Column(name = "destination_url")
+    private String destinationUrl;
+
+    @Column(name = "product_offer_id")
+    private Integer productOfferId;
+
+    @Column(name = "build_uuid")
+    private UUID buildUuid;
+
+    @ColumnDefault("true")
+    @Column(name = "is_active", nullable = false)
+    private Boolean isActive = true;
+
+    @ColumnDefault("now()")
+    @Column(name = "created_at", nullable = false)
+    private OffsetDateTime createdAt = OffsetDateTime.now();
+
+    public UUID getId() { return id; }
+    public void setId(UUID id) { this.id = id; }
+
+    public String getCode() { return code; }
+    public void setCode(String code) { this.code = code; }
+
+    public String getType() { return type; }
+    public void setType(String type) { this.type = type; }
+
+    public String getDestinationUrl() { return destinationUrl; }
+    public void setDestinationUrl(String destinationUrl) { this.destinationUrl = destinationUrl; }
+
+    public Integer getProductOfferId() { return productOfferId; }
+    public void setProductOfferId(Integer productOfferId) { this.productOfferId = productOfferId; }
+
+    public UUID getBuildUuid() { return buildUuid; }
+    public void setBuildUuid(UUID buildUuid) { this.buildUuid = buildUuid; }
+
+    public Boolean getIsActive() { return isActive; }
+    public void setIsActive(Boolean active) { isActive = active; }
+
+    public OffsetDateTime getCreatedAt() { return createdAt; }
+    public void setCreatedAt(OffsetDateTime createdAt) { this.createdAt = createdAt; }
+}

src/main/java/group/goforward/battlbuilder/repos/ShortLinkRepository.java

@@ -0,0 +1,17 @@
+package group.goforward.battlbuilder.repos;
+
+import group.goforward.battlbuilder.model.ShortLink;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+import java.util.UUID;
+
+public interface ShortLinkRepository extends JpaRepository<ShortLink, UUID> {
+
+    Optional<ShortLink> findByCodeAndIsActiveTrue(String code);
+
+    Optional<ShortLink> findByTypeAndProductOfferId(String type, Integer productOfferId);
+
+    // Future short URL support for build sharing
+    Optional<ShortLink> findByTypeAndBuildUuid(String type, UUID buildUuid);
+}

src/main/java/group/goforward/battlbuilder/services/ShortLinkService.java

@@ -0,0 +1,67 @@
+package group.goforward.battlbuilder.services;
+
+import group.goforward.battlbuilder.config.ShortLinksProperties;
+import group.goforward.battlbuilder.model.ShortLink;
+import group.goforward.battlbuilder.repos.ShortLinkRepository;
+import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.stereotype.Service;
+
+import java.security.SecureRandom;
+import java.util.UUID;
+
+@Service
+public class ShortLinkService {
+
+    private static final String TYPE_BUY = "BUY";
+    private static final String ALPHABET = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+    private static final SecureRandom RNG = new SecureRandom();
+
+    private final ShortLinkRepository repo;
+    private final ShortLinksProperties props;
+
+    public ShortLinkService(ShortLinkRepository repo, ShortLinksProperties props) {
+        this.repo = repo;
+        this.props = props;
+    }
+
+    public String shortBuyUrlForOffer(Integer offerId, String destinationUrl) {
+        if (!props.isEnabled()) return destinationUrl;
+        if (offerId == null || destinationUrl == null || destinationUrl.isBlank()) return destinationUrl;
+
+        var existing = repo.findByTypeAndProductOfferId(TYPE_BUY, offerId).orElse(null);
+        if (existing != null) return publicUrl(existing.getCode());
+
+        for (int attempt = 0; attempt < 5; attempt++) {
+            try {
+                ShortLink link = new ShortLink();
+                link.setType(TYPE_BUY);
+                link.setProductOfferId(offerId);
+                link.setDestinationUrl(destinationUrl);
+                link.setCode(code(8));
+
+                repo.saveAndFlush(link); //  flush forces the constraint check *here*
+                return publicUrl(link.getCode());
+
+            } catch (DataIntegrityViolationException ignored) {
+                // another thread/process created it first
+                var raced = repo.findByTypeAndProductOfferId(TYPE_BUY, offerId).orElse(null);
+                if (raced != null) return publicUrl(raced.getCode());
+            }
+        }
+
+        return destinationUrl;
+    }
+
+    private String publicUrl(String code) {
+        String base = props.getPublicBaseUrl();
+        if (base == null) base = "";
+        base = base.endsWith("/") ? base.substring(0, base.length() - 1) : base;
+        return base + "/go/" + code;
+    }
+
+    private String code(int len) {
+        StringBuilder sb = new StringBuilder(len);
+        for (int i = 0; i < len; i++) sb.append(ALPHABET.charAt(RNG.nextInt(ALPHABET.length())));
+        return sb.toString();
+    }
+}

src/main/java/group/goforward/battlbuilder/services/impl/CatalogQueryServiceImpl.java

@@ -6,10 +6,10 @@ import group.goforward.battlbuilder.repos.ProductOfferRepository;
 import group.goforward.battlbuilder.repos.ProductRepository;
 import group.goforward.battlbuilder.repos.spec.CatalogProductSpecifications;
 import group.goforward.battlbuilder.services.CatalogQueryService;
+import group.goforward.battlbuilder.services.ShortLinkService;
 import group.goforward.battlbuilder.web.dto.ProductSummaryDto;
 import group.goforward.battlbuilder.web.dto.catalog.CatalogProductIdsRequest;
 import group.goforward.battlbuilder.web.mapper.ProductMapper;
-
 import org.springframework.data.domain.*;
 import org.springframework.data.jpa.domain.Specification;
 import org.springframework.stereotype.Service;
@@ -24,11 +24,16 @@ public class CatalogQueryServiceImpl implements CatalogQueryService {
 
     private final ProductRepository productRepository;
     private final ProductOfferRepository productOfferRepository;
+    private final ShortLinkService shortLinkService;
 
-    public CatalogQueryServiceImpl(ProductRepository productRepository,
-                                   ProductOfferRepository productOfferRepository) {
+    public CatalogQueryServiceImpl(
+            ProductRepository productRepository,
+            ProductOfferRepository productOfferRepository,
+            ShortLinkService shortLinkService
+    ) {
         this.productRepository = productRepository;
         this.productOfferRepository = productOfferRepository;
+        this.shortLinkService = shortLinkService;
     }
 
     @Override
@@ -81,7 +86,11 @@ public class CatalogQueryServiceImpl implements CatalogQueryService {
             ProductOffer best = bestOfferByProductId.get(p.getId());
             BigDecimal price = best != null ? best.getEffectivePrice() : null;
             String buyUrl = best != null ? best.getBuyUrl() : null;
-            return ProductMapper.toSummary(p, price, buyUrl);
+            String buyShortUrl = best != null
+                    ? shortLinkService.shortBuyUrlForOffer(best.getId(), buyUrl)
+                    : null;
+
+            return ProductMapper.toSummary(p, price, buyUrl, buyShortUrl);
         }).toList();
 
         return new PageImpl<>(dtos, pageable, page.getTotalElements());
@@ -111,8 +120,11 @@ public class CatalogQueryServiceImpl implements CatalogQueryService {
             ProductOffer best = bestOfferByProductId.get(id);
             BigDecimal price = best != null ? best.getEffectivePrice() : null;
             String buyUrl = best != null ? best.getBuyUrl() : null;
+            String buyShortUrl = best != null
+                    ? shortLinkService.shortBuyUrlForOffer(best.getId(), buyUrl)
+                    : null;
 
-            out.add(ProductMapper.toSummary(p, price, buyUrl));
+            out.add(ProductMapper.toSummary(p, price, buyUrl, buyShortUrl));
         }
 
         return out;
@@ -135,7 +147,6 @@ public class CatalogQueryServiceImpl implements CatalogQueryService {
                 continue;
             }
 
-            // ---- ranking rules (in order) ----
             // 1) prefer in-stock
             boolean oStock = Boolean.TRUE.equals(o.getInStock());
             boolean cStock = Boolean.TRUE.equals(current.getInStock());
@@ -182,14 +193,12 @@ public class CatalogQueryServiceImpl implements CatalogQueryService {
 
         int page = pageable.getPageNumber();
         int requested = pageable.getPageSize();
-        int size = Math.min(Math.max(requested, 1), 48); // ✅ hard cap
+        int size = Math.min(Math.max(requested, 1), 48);
 
-        // Default sort if none provided
         if (pageable.getSort() == null || pageable.getSort().isUnsorted()) {
             return PageRequest.of(page, size, Sort.by(Sort.Direction.DESC, "updatedAt"));
         }
 
-        // Only allow safe sorts (for now)
         Sort.Order first = pageable.getSort().stream().findFirst().orElse(null);
         if (first == null) {
             return PageRequest.of(page, size, Sort.by(Sort.Direction.DESC, "updatedAt"));
@@ -198,9 +207,6 @@ public class CatalogQueryServiceImpl implements CatalogQueryService {
         String prop = first.getProperty();
         Sort.Direction dir = first.getDirection();
 
-        // IMPORTANT:
-        // If you're still using JPA Specifications (Product entity), you can only sort by Product fields.
-        // Once you switch to the native "best offer" query, you can allow "price" and "brand" sorts.
         return switch (prop) {
             case "updatedAt", "createdAt", "name" -> PageRequest.of(page, size, Sort.by(dir, prop));
             default -> PageRequest.of(page, size, Sort.by(Sort.Direction.DESC, "updatedAt"));

src/main/java/group/goforward/battlbuilder/services/impl/ProductQueryServiceImpl.java

@@ -5,38 +5,38 @@ import group.goforward.battlbuilder.model.ProductOffer;
 import group.goforward.battlbuilder.repos.ProductOfferRepository;
 import group.goforward.battlbuilder.repos.ProductRepository;
 import group.goforward.battlbuilder.services.ProductQueryService;
+import group.goforward.battlbuilder.services.ShortLinkService;
 import group.goforward.battlbuilder.web.dto.ProductOfferDto;
 import group.goforward.battlbuilder.web.dto.ProductSummaryDto;
-import group.goforward.battlbuilder.web.mapper.ProductMapper;
 import group.goforward.battlbuilder.web.dto.catalog.ProductSort;
-
-import java.math.BigDecimal;
-import java.util.*;
-import java.util.stream.Collectors;
+import group.goforward.battlbuilder.web.mapper.ProductMapper;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageImpl;
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Service;
 
-
-import java.util.stream.Collectors;
+import java.math.BigDecimal;
 import java.util.Collections;
-import java.util.Map;
+import java.util.Comparator;
 import java.util.List;
-import java.util.ArrayList;
+import java.util.Map;
+import java.util.stream.Collectors;
 
 @Service
 public class ProductQueryServiceImpl implements ProductQueryService {
 
     private final ProductRepository productRepository;
     private final ProductOfferRepository productOfferRepository;
+    private final ShortLinkService shortLinkService;
 
     public ProductQueryServiceImpl(
             ProductRepository productRepository,
-            ProductOfferRepository productOfferRepository
+            ProductOfferRepository productOfferRepository,
+            ShortLinkService shortLinkService
     ) {
         this.productRepository = productRepository;
         this.productOfferRepository = productOfferRepository;
+        this.shortLinkService = shortLinkService;
     }
 
     @Override
@@ -58,7 +58,6 @@ public class ProductQueryServiceImpl implements ProductQueryService {
 
         List<Integer> productIds = products.stream().map(Product::getId).toList();
 
-        // ✅ canonical repo method
         List<ProductOffer> allOffers = productOfferRepository.findByProduct_IdIn(productIds);
 
         Map<Integer, List<ProductOffer>> offersByProductId = allOffers.stream()
@@ -74,8 +73,11 @@ public class ProductQueryServiceImpl implements ProductQueryService {
 
                     BigDecimal price = bestOffer != null ? bestOffer.getEffectivePrice() : null;
                     String buyUrl = bestOffer != null ? bestOffer.getBuyUrl() : null;
+                    String buyShortUrl = bestOffer != null
+                            ? shortLinkService.shortBuyUrlForOffer(bestOffer.getId(), buyUrl)
+                            : null;
 
-                    return ProductMapper.toSummary(p, price, buyUrl);
+                    return ProductMapper.toSummary(p, price, buyUrl, buyShortUrl);
                 })
                 .toList();
     }
@@ -89,9 +91,6 @@ public class ProductQueryServiceImpl implements ProductQueryService {
     ) {
         final boolean allPlatforms = platform != null && platform.equalsIgnoreCase("ALL");
 
-        // IMPORTANT: ignore Pageable sorting (because we are doing our own "best price" logic)
-        // If the client accidentally passes ?sort=..., Spring Data will try ordering by a Product field.
-        // We'll strip it to be safe.
         Pageable safePageable = pageable;
         if (pageable != null && pageable.getSort() != null && pageable.getSort().isSorted()) {
             safePageable = Pageable.ofSize(pageable.getPageSize()).withPage(pageable.getPageNumber());
@@ -116,14 +115,12 @@ public class ProductQueryServiceImpl implements ProductQueryService {
 
         List<Integer> productIds = products.stream().map(Product::getId).toList();
 
-        // Only fetch offers for THIS PAGE of products
         List<ProductOffer> allOffers = productOfferRepository.findByProduct_IdIn(productIds);
 
         Map<Integer, List<ProductOffer>> offersByProductId = allOffers.stream()
                 .filter(o -> o.getProduct() != null && o.getProduct().getId() != null)
                 .collect(Collectors.groupingBy(o -> o.getProduct().getId()));
 
-        // Build DTOs (same as before)
         List<ProductSummaryDto> dtos = products.stream()
                 .map(p -> {
                     List<ProductOffer> offersForProduct =
@@ -133,12 +130,14 @@ public class ProductQueryServiceImpl implements ProductQueryService {
 
                     BigDecimal price = bestOffer != null ? bestOffer.getEffectivePrice() : null;
                     String buyUrl = bestOffer != null ? bestOffer.getBuyUrl() : null;
+                    String buyShortUrl = bestOffer != null
+                            ? shortLinkService.shortBuyUrlForOffer(bestOffer.getId(), buyUrl)
+                            : null;
 
-                    return ProductMapper.toSummary(p, price, buyUrl);
+                    return ProductMapper.toSummary(p, price, buyUrl, buyShortUrl);
                 })
                 .toList();
 
-        // Phase 3 "server-side sort by price" (within the page for now)
         Comparator<ProductSummaryDto> byPriceNullLast =
                 Comparator.comparing(ProductSummaryDto::getPrice, Comparator.nullsLast(Comparator.naturalOrder()));
 
@@ -151,13 +150,8 @@ public class ProductQueryServiceImpl implements ProductQueryService {
         return new PageImpl<>(dtos, safePageable, productPage.getTotalElements());
     }
 
-    //
-    // Product Offers
-    //
-
     @Override
     public List<ProductOfferDto> getOffersForProduct(Integer productId) {
-        // ✅ canonical repo method
         List<ProductOffer> offers = productOfferRepository.findByProduct_Id(productId);
 
         return offers.stream()
@@ -180,20 +174,21 @@ public class ProductQueryServiceImpl implements ProductQueryService {
         Product product = productRepository.findById(productId).orElse(null);
         if (product == null) return null;
 
-        // ✅ canonical repo method
         List<ProductOffer> offers = productOfferRepository.findByProduct_Id(productId);
         ProductOffer bestOffer = pickBestOffer(offers);
 
         BigDecimal price = bestOffer != null ? bestOffer.getEffectivePrice() : null;
         String buyUrl = bestOffer != null ? bestOffer.getBuyUrl() : null;
+        String buyShortUrl = bestOffer != null
+                ? shortLinkService.shortBuyUrlForOffer(bestOffer.getId(), buyUrl)
+                : null;
 
-        return ProductMapper.toSummary(product, price, buyUrl);
+        return ProductMapper.toSummary(product, price, buyUrl, buyShortUrl);
     }
 
     private ProductOffer pickBestOffer(List<ProductOffer> offers) {
         if (offers == null || offers.isEmpty()) return null;
 
-        // MVP: lowest effective price wins. (Later: prefer in-stock, etc.)
         return offers.stream()
                 .filter(o -> o.getEffectivePrice() != null)
                 .min(Comparator.comparing(ProductOffer::getEffectivePrice))

src/main/java/group/goforward/battlbuilder/web/dto/ProductSummaryDto.java

@@ -12,6 +12,7 @@ public class ProductSummaryDto {
     private String categoryKey;
     private BigDecimal price;   
     private String buyUrl;
+    private String buyShortUrl;
     private String imageUrl;
 
 
@@ -79,6 +80,9 @@ public class ProductSummaryDto {
         this.buyUrl = buyUrl;
     }
 
+    public String getBuyShortUrl() { return buyShortUrl; }
+    public void setBuyShortUrl(String buyShortUrl) { this.buyShortUrl = buyShortUrl; }
+
     public String getImageUrl() { return imageUrl; }
 
     public void setImageUrl(String imageUrl) { this.imageUrl = imageUrl; }

src/main/java/group/goforward/battlbuilder/web/mapper/ProductMapper.java

@@ -7,10 +7,9 @@ import java.math.BigDecimal;
 
 public class ProductMapper {
 
-    public static ProductSummaryDto toSummary(Product product, BigDecimal price, String buyUrl) {
+    public static ProductSummaryDto toSummary(Product product, BigDecimal price, String buyUrl, String buyShortUrl) {
         ProductSummaryDto dto = new ProductSummaryDto();
 
-        // Product ID -> String
         dto.setId(String.valueOf(product.getId()));
 
         dto.setName(product.getName());
@@ -18,17 +17,14 @@ public class ProductMapper {
         dto.setPlatform(product.getPlatform());
         dto.setPartRole(product.getPartRole());
 
-        // Use rawCategoryKey from the Product entity
         dto.setCategoryKey(product.getRawCategoryKey());
 
-        // Price + buy URL from offers
         dto.setPrice(price);
-        dto.setBuyUrl(buyUrl);
+        dto.setBuyUrl(buyUrl);                 // keep raw
+        dto.setBuyShortUrl(buyShortUrl);       // new
 
-        // product image
         dto.setImageUrl(product.getMainImageUrl());
 
-
         return dto;
     }
 }

src/main/resources/application-dev.yml

@@ -0,0 +1,3 @@
+shortlinks:
+  enabled: true
+  publicBaseUrl: "http://localhost:8080"

src/main/resources/application-prod.yml

@@ -0,0 +1,3 @@
+shortlinks:
+  enabled: true
+  publicBaseUrl: "https://battl.build"