feat: 赞赏后台

backend/src/main/java/com/openisle/controller/PostDonationController.java

@@ -0,0 +1,43 @@
+package com.openisle.controller;
+
+import com.openisle.dto.DonationRequest;
+import com.openisle.dto.DonationResponse;
+import com.openisle.service.PointService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.security.SecurityRequirement;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.core.Authentication;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/posts/{postId}/donations")
+@RequiredArgsConstructor
+public class PostDonationController {
+
+  private final PointService pointService;
+
+  @GetMapping
+  @Operation(summary = "List donations", description = "Get recent donations for a post")
+  @ApiResponse(responseCode = "200", description = "Donation summary")
+  public DonationResponse list(@PathVariable Long postId) {
+    return pointService.getPostDonations(postId);
+  }
+
+  @PostMapping
+  @SecurityRequirement(name = "JWT")
+  @Operation(summary = "Donate", description = "Donate points to the post author")
+  @ApiResponse(responseCode = "200", description = "Donation result")
+  public DonationResponse donate(
+    @PathVariable Long postId,
+    @RequestBody DonationRequest req,
+    Authentication auth
+  ) {
+    return pointService.donateToPost(auth.getName(), postId, req.getAmount());
+  }
+}