goplus · thewindwillstop · Sep 9, 2025
diff --git a/spx-backend/docs/milestone2.0/prompt_complete/PROMPT_COMPLETION_API.md b/spx-backend/docs/milestone2.0/prompt_complete/PROMPT_COMPLETION_API.md
@@ -0,0 +1,301 @@
+# 提示词补全API接口文档
+
+## 概述
+
+提示词补全功能为开发者提供智能的代码、资源名称和关键词自动补全服务。该功能通过预构建的字典树(Trie)和机器学习模型，提供快速、准确的补全建议。
+
+## 架构设计
+
+```
+用户输入 → 补全服务 → 预测引擎 → 返回建议列表
+          ↓
+       1. 接收用户输入前缀
+       2. 查询缓存或数据库
+       3. 应用智能排序算法
+       4. 返回TopK个补全建议
+```
+
+### 核心功能
+1. **资源名称补全**: 基于项目中的游戏资源(sprite、sound、backdrop等)提供补全
+2. **代码关键词补全**: 提供Go+语言和SPX框架的关键词补全
+3. **上下文感知**: 根据当前代码位置提供相关的补全建议
+4. **缓存优化**: 使用Trie数据结构提供毫秒级响应
+
+## API接口
+
+### GET /assets/complete
+**功能**: 游戏资源名称自动补全
+
+**请求参数**:
+```
+GET /assets/complete?prefix=cat&limit=10
+```
+
+**参数说明**:
+- `prefix` (string, 必需): 用户输入的前缀，最少1个字符
+- `limit` (int, 可选): 返回建议数量，默认5，范围1-50
+
+**响应格式**:
+```json
+{
+  "prefix": "cat",
+  "suggestions": [
+    "cat_sprite_01",
+    "cat_sound_meow",
+    "cat_background",
+    "caterpillar_sprite",
+    "catch_game_sprite"
+  ],
+  "count": 5,
+  "cache_hit": true
+}
+```
+
+### POST /prompt/complete
+**功能**: 智能代码补全和提示词建议
+
+**请求参数**:
+```json
+{
+  "context": {
+    "project_id": 12345,
+    "file_type": "gop",
+    "cursor_position": {
+      "line": 10,
+      "column": 15
+    },
+    "current_line": "sprite.Move"
+  },
+  "prefix": "Mo",
+  "completion_type": "method",
+  "limit": 8
+}
+```
+
+**参数说明**:
+- `context` (object, 必需): 代码上下文信息
+  - `project_id` (int64, 必需): 项目ID
+  - `file_type` (string, 必需): 文件类型，支持`"gop"`, `"spx"`, `"json"`
+  - `cursor_position` (object, 可选): 光标位置
+  - `current_line` (string, 可选): 当前行内容
+- `prefix` (string, 必需): 补全前缀
+- `completion_type` (string, 可选): 补全类型，可选值:
+  - `"method"`: 方法补全
+  - `"variable"`: 变量补全 
+  - `"keyword"`: 关键词补全
+  - `"auto"`: 自动检测(默认)
+- `limit` (int, 可选): 返回建议数量，默认8，范围1-20
+
+**响应格式**:
+```json
+{
+  "prefix": "Mo",
+  "context": {
+    "detected_type": "method",
+    "file_type": "gop",
+    "project_context": ["sprite", "game", "movement"]
+  },
+  "suggestions": [
+    {
+      "text": "Move",
+      "description": "Move sprite to specified position",
+      "type": "method",
+      "signature": "Move(x, y float64)",
+      "priority": 0.95,
+      "source": "spx_framework"
+    },
+    {
+      "text": "MoveTo", 
+      "description": "Move sprite to target with animation",
+      "type": "method",
+      "signature": "MoveTo(target Position, duration float64)",
+      "priority": 0.88,
+      "source": "spx_framework"
+    },
+    {
+      "text": "MoveBy",
+      "description": "Move sprite by relative offset",
+      "type": "method", 
+      "signature": "MoveBy(dx, dy float64)",
+      "priority": 0.82,
+      "source": "spx_framework"
+    }
+  ],
+  "count": 3,
+  "completion_time_ms": 15
+}
+```
+
+### GET /prompt/keywords
+**功能**: 获取可用关键词列表
+
+**请求参数**:
+```
+GET /prompt/keywords?category=spx&file_type=gop
+```
+
+**参数说明**:
+- `category` (string, 可选): 关键词分类，可选值:
+  - `"gop"`: Go+语言关键词
+  - `"spx"`: SPX框架关键词
+  - `"builtin"`: 内置函数
+  - `"all"`: 所有关键词(默认)
+- `file_type` (string, 可选): 文件类型过滤
+
+**响应格式**:
+```json
+{
+  "category": "spx",
+  "keywords": [
+    {
+      "name": "Sprite",
+      "type": "class",
+      "description": "Game sprite object",
+      "usage_example": "var sprite Sprite"
+    },
+    {
+      "name": "onStart", 
+      "type": "event",
+      "description": "Game start event handler",
+      "usage_example": "func onStart() { ... }"
+    },
+    {
+      "name": "say",
+      "type": "method",
+      "description": "Display speech bubble",
+      "usage_example": "sprite.say(\"Hello!\")"
+    }
+  ],
+  "count": 3,
+  "last_updated": "2024-01-15T10:30:00Z"
+}
+```
+
+## 缓存管理
+
+### POST /assets/complete/refresh
+**功能**: 刷新补全缓存(管理员接口)
+
+**请求参数**: 无
+
+**响应格式**:
+```json
+{
+  "status": "success",
+  "message": "Asset completion cache refreshed",
+  "stats": {
+    "total_assets": 15420,
+    "cache_size": "2.4MB",
+    "refresh_time_ms": 1240
+  }
+}
+```
+
+### GET /assets/complete/stats
+**功能**: 获取补全服务统计信息
+
+**响应格式**:
+```json
+{
+  "service_status": "healthy",
+  "cache_enabled": true,
+  "statistics": {
+    "total_requests": 89432,
+    "cache_hit_rate": 0.94,
+    "avg_response_time_ms": 8.5,
+    "total_assets_cached": 15420,
+    "cache_size_mb": 2.4,
+    "last_cache_refresh": "2024-01-15T09:15:00Z"
+  },
+  "performance": {
+    "trie_depth": 12,
+    "max_suggestions_per_request": 50,
+    "request_timeout_ms": 3000
+  }
+}
+```
+
+## 错误处理
+
+### 错误响应格式
+```json
+{
+  "error": {
+    "code": "INVALID_PREFIX",
+    "message": "Prefix must be at least 1 character long",
+    "details": {
+      "field": "prefix",
+      "value": "",
+      "requirement": "min_length: 1"
+    }
+  },
+  "request_id": "req_123456789"
+}
+```
+
+### 常见错误码
+- `INVALID_PREFIX`: 前缀格式无效
+- `LIMIT_EXCEEDED`: 请求限制超出范围
+- `PROJECT_NOT_FOUND`: 项目不存在
+- `CACHE_UNAVAILABLE`: 缓存服务不可用
+- `COMPLETION_TIMEOUT`: 补全请求超时
+- `INVALID_CONTEXT`: 上下文信息无效
+
+## 性能特性
+
+1. **响应时间**: 平均响应时间 < 15ms
+2. **并发处理**: 支持1000+ QPS
+3. **缓存命中率**: > 90%
+4. **内存使用**: 缓存大小约2-5MB
+5. **容错能力**: 缓存失效时自动降级到数据库查询
+
+## 配置说明
+
+### 环境变量
+- `ENABLE_ASSET_COMPLETION_TRIE`: 启用Trie缓存 (true/false)
+- `COMPLETION_CACHE_TTL`: 缓存过期时间，默认3600秒
+- `MAX_COMPLETION_SUGGESTIONS`: 最大建议数量，默认50
+- `COMPLETION_REQUEST_TIMEOUT`: 请求超时时间，默认3000ms
+
+### 使用建议
+1. 生产环境建议启用Trie缓存以获得最佳性能
+2. 定期刷新缓存以保持数据一致性
+3. 监控缓存命中率，低于80%时考虑优化
+4. 根据项目规模调整建议数量限制
+
+## 集成示例
+
+### JavaScript客户端示例
+```javascript
+// 资源名称补全
+async function getAssetCompletions(prefix) {
+  const response = await fetch(`/api/assets/complete?prefix=${prefix}&limit=10`);
+  const data = await response.json();
+  return data.suggestions;
+}
+
+// 代码补全
+async function getCodeCompletions(context, prefix) {
+  const response = await fetch('/api/prompt/complete', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ context, prefix, limit: 8 })
+  });
+  const data = await response.json();
+  return data.suggestions;
+}
+```
+
+### Go客户端示例
+```go
+type CompletionRequest struct {
+    Context        Context `json:"context"`
+    Prefix         string  `json:"prefix"`
+    CompletionType string  `json:"completion_type,omitempty"`
+    Limit          int     `json:"limit,omitempty"`
+}
+
+func GetCompletions(req CompletionRequest) ([]Suggestion, error) {
+    // 实现补全请求逻辑
+}
+```