Files
LoveLosita 26c350f378 Version: 0.4.4.dev.260307
feat: 🚀 增强会话管理与缓存机制

* 会话 ID 空值兜底,若 `conversation_id` 为空时自动生成 UUID
* 在响应头写入 `X-Conversation-ID`,供前端使用,保持同一会话状态

perf:  会话状态缓存优化

* 当缓存未命中但 DB 已确认/创建会话后,调用 `SetConversationStatus` 回写 Redis
* 缓存写回失败时记录日志,不中断聊天主流程,确保业务流畅性

fix: 🐛 修复历史消息顺序问题与编译错误

* 修复历史消息顺序问题,保证返回的 N 条历史消息按时间正序喂给模型

  * 通过反转 `created_at desc` 查询结果的切片,确保模型输入顺序正确
* 修复 `fmt.Errorf` 参数不匹配问题,修正编译错误
* 整理 `agent-cache.go` 为标准 UTF-8 编码,避免 Go 编译报错 `invalid UTF-8 encoding`

feat: 🛠️ 独立构建 MCP 服务器

* 使用 `Codex` 构建独立于后端的 MCP 服务器,简化与 Codex 的协作
* 通过该服务器方便 Codex 直接测试和查看 Redis 与 MySQL 中的数据
2026-03-07 15:25:40 +08:00

131 lines
3.2 KiB
Go

package tools
import (
"context"
"fmt"
"github.com/LoveLosita/smartflow/infra/smartflow-mcp-server/internal/store"
)
type RedisGetTool struct {
client *store.RedisClient
valueMaxItems int
maxStringBytes int
}
func NewRedisGetTool(client *store.RedisClient, valueMaxItems int, maxStringBytes int) *RedisGetTool {
return &RedisGetTool{client: client, valueMaxItems: valueMaxItems, maxStringBytes: maxStringBytes}
}
func (t *RedisGetTool) Name() string {
return "redis_get"
}
func (t *RedisGetTool) Description() string {
return "Get a Redis key by name and return its type and value."
}
func (t *RedisGetTool) InputSchema() map[string]any {
return map[string]any{
"type": "object",
"properties": map[string]any{
"key": map[string]any{
"type": "string",
"description": "Redis key",
},
},
"required": []string{"key"},
"additionalProperties": false,
}
}
func (t *RedisGetTool) Execute(ctx context.Context, args map[string]any) (map[string]any, error) {
key, ok := args["key"].(string)
if !ok || key == "" {
return nil, fmt.Errorf("key must be a non-empty string")
}
res, err := t.client.GetWithType(ctx, key, t.valueMaxItems, t.maxStringBytes)
if err != nil {
return nil, err
}
return map[string]any{
"exists": res.Exists,
"key": res.Key,
"type": res.Type,
"value": res.Value,
"truncated": res.Truncated,
"durationMs": res.DurationMs,
}, nil
}
type RedisScanTool struct {
client *store.RedisClient
maxKeys int
maxScanCount int
}
func NewRedisScanTool(client *store.RedisClient, maxKeys int, maxScanCount int) *RedisScanTool {
return &RedisScanTool{client: client, maxKeys: maxKeys, maxScanCount: maxScanCount}
}
func (t *RedisScanTool) Name() string {
return "redis_scan"
}
func (t *RedisScanTool) Description() string {
return "Scan Redis keys by pattern with capped result size."
}
func (t *RedisScanTool) InputSchema() map[string]any {
return map[string]any{
"type": "object",
"properties": map[string]any{
"pattern": map[string]any{
"type": "string",
"description": "Pattern, for example user:*",
},
"count": map[string]any{
"type": "number",
"description": "Optional scan count hint",
},
},
"required": []string{"pattern"},
"additionalProperties": false,
}
}
func (t *RedisScanTool) Execute(ctx context.Context, args map[string]any) (map[string]any, error) {
pattern, ok := args["pattern"].(string)
if !ok || pattern == "" {
return nil, fmt.Errorf("pattern must be a non-empty string")
}
count := int64(20)
if rawCount, ok := args["count"]; ok {
number, ok := rawCount.(float64)
if !ok {
return nil, fmt.Errorf("count must be a number")
}
if number <= 0 {
return nil, fmt.Errorf("count must be > 0")
}
count = int64(number)
}
if count > int64(t.maxScanCount) {
count = int64(t.maxScanCount)
}
res, err := t.client.ScanKeys(ctx, pattern, count, t.maxKeys)
if err != nil {
return nil, err
}
return map[string]any{
"pattern": res.Pattern,
"keys": res.Keys,
"returned": res.Returned,
"nextCursor": res.NextCursor,
"truncated": res.Truncated,
"durationMs": res.DurationMs,
}, nil
}