feat: allow bulk patch starts

Author: MiniDigger

src/main/java/io/papermc/patchroulette/controller/RESTController.java

@@ -90,10 +90,28 @@ private String getUser(final Authentication authentication) {
     )
     public ResponseEntity<String> startPatch(final Authentication auth, @RequestBody final PatchId input) {
         final String user = this.getUser(auth);
-        this.patchService.startWorkOnPatch(input, user);
+        final List<String> result = this.patchService.startWorkOnPatches(input.getMinecraftVersion(), List.of(input.getPath()), user);
+        if (result.isEmpty()) {
+            return ResponseEntity.status(HttpStatus.CONFLICT).body("Patch not available.");
+        }
         return ResponseEntity.ok("Patch started.");
     }
 
+    @PreAuthorize("hasRole('PATCH')")
+    @PostMapping(
+            value = "/start-patches",
+            consumes = "application/json",
+            produces = "application/json"
+    )
+    public ResponseEntity<?> startPatch(final Authentication auth, @RequestBody final Patches input) {
+        final String user = this.getUser(auth);
+        final List<String> result = this.patchService.startWorkOnPatches(input.minecraftVersion(), input.paths(), user);
+        if (result.isEmpty()) {
+            return ResponseEntity.status(HttpStatus.CONFLICT).body("None of the patches are available.");
+        }
+        return ResponseEntity.ok(result);
+    }
+
     @PreAuthorize("hasRole('PATCH')")
     @PostMapping(
         value = "/complete-patch",

src/main/java/io/papermc/patchroulette/model/PatchId.java

@@ -13,6 +13,14 @@ public class PatchId implements Serializable {
     public PatchId() {
     }
 
+    public String getMinecraftVersion() {
+        return minecraftVersion;
+    }
+
+    public String getPath() {
+        return path;
+    }
+
     @JsonCreator
     public PatchId(@JsonProperty("minecraftVersion") final String minecraftVersion,
                    @JsonProperty("path") final String path) {

src/main/java/io/papermc/patchroulette/service/PatchService.java

@@ -4,6 +4,8 @@
 import io.papermc.patchroulette.model.PatchId;
 import io.papermc.patchroulette.model.Status;
 import io.papermc.patchroulette.repository.PatchRepository;
+
+import java.util.ArrayList;
 import java.util.List;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
@@ -41,17 +43,23 @@ public List<Patch> getAllPatches(final String minecraftVersion) {
     }
 
     @Transactional
-    public void startWorkOnPatch(final PatchId patchId, final String user) {
-        final Patch patch = this.patchRepository.getReferenceById(patchId);
-        if (patch.getStatus() != Status.AVAILABLE) {
-            throw new IllegalStateException("Patch " + patchId + " is not available");
-        }
-        if (patch.getResponsibleUser() != null) {
-            throw new IllegalStateException("Patch " + patchId + " is already claimed by another user");
+    public List<String> startWorkOnPatches(final String minecraftVersion, final List<String> patches, final String user) {
+        final List<String> startedPatches = new ArrayList<>();
+        for (final String path : patches) {
+            final PatchId patchId = new PatchId(minecraftVersion, path);
+            final Patch patch = this.patchRepository.getReferenceById(patchId);
+            if (patch.getStatus() != Status.AVAILABLE) {
+                continue;
+            }
+            if (patch.getResponsibleUser() != null) {
+                continue;
+            }
+            patch.setStatus(Status.WIP);
+            patch.setResponsibleUser(user);
+            this.patchRepository.save(patch);
+            startedPatches.add(path);
         }
-        patch.setStatus(Status.WIP);
-        patch.setResponsibleUser(user);
-        this.patchRepository.save(patch);
+        return startedPatches;
     }
 
     @Transactional