refactor(asynch): 重构异步模型配置和队列管理

common/util/mapping.go

@@ -1,11 +1,17 @@
 package util
 
 import (
+	"bytes"
+	"context"
 	"encoding/json"
 	"fmt"
+	"io"
 	"model-gateway/model/entity"
+	"net/http"
 	"net/url"
+	"regexp"
 	"strings"
+	"time"
 
 	"github.com/gogf/gf/v2/encoding/gjson"
 	"github.com/gogf/gf/v2/frame/g"
@@ -18,14 +24,9 @@ import (
 func ValidatePromptResult(raw map[string]any, model *entity.AsynchModel) error {
 	// 1) 获取校验配置，并取值
 	requestMapping := model.RequestMapping
-	contentKey := ""
-	for k := range model.ResponseBody {
-		contentKey = k
-		break
-	}
-	contentStr, ok := raw[contentKey].(string)
+	contentStr, ok := raw[model.ResponseBody].(string)
 	if !ok || contentStr == "" {
-		return fmt.Errorf("%s 字段为空或不是字符串", contentKey)
+		return fmt.Errorf("%s 字段为空或不是字符串", model.ResponseBody)
 	}
 
 	// 2) 解析 content 为 JSON 数组
@@ -105,56 +106,39 @@ func MapResponsePayload(mapping map[string]any, result map[string]any) (map[stri
 	return mapped, nil
 }
 
-// ParseHeadMsgHeaders 支持多个 header 绑定，逗号分隔：
-// 示例：
-// - X-API-Key:qwen3-tts-key,operation:true,count:123
-// - X-API-Key:"qwen3-tts-key",operation:"true"
+// ParseHeadMsgHeaders 从 head_msg JSON 中提取请求头
+// head_msg 格式示例：
 //
-// 说明：
-// - HTTP Header 最终都是字符串，这里做的是“值的字符串化表达”。
-// - 若 value 用双引号包裹，会去掉外层引号再注入，便于在配置中区分字符串/布尔/数字等表达（以及避免值中包含特殊字符时歧义）。
-func ParseHeadMsgHeaders(headMsg string) map[string]string {
-	headMsg = strings.TrimSpace(headMsg)
-	if headMsg == "" {
+//	{
+//	    "Authorization": "Bearer xxx",
+//	    "Content-Type": "application/json",
+//	    "X-Api-App-Id": "5147401364",
+//	    "X-Api-Access-Key": "VCqRX7..."
+//	}
+func ParseHeadMsgHeaders(headMsg map[string]any) map[string]string {
+	if len(headMsg) == 0 {
 		return nil
 	}
-	out := map[string]string{}
-	parts := strings.Split(headMsg, ",")
-	for _, p := range parts {
-		p = strings.TrimSpace(p)
-		if p == "" {
-			continue
-		}
-		// HeaderName:HeaderValue（推荐） / HeaderName=HeaderValue（兼容）
-		if strings.Contains(p, ":") {
-			kv := strings.SplitN(p, ":", 2)
-			k := strings.TrimSpace(kv[0])
-			v := strings.TrimSpace(kv[1])
-			v = strings.Trim(v, "\"")
-			if k != "" && v != "" {
-				out[k] = v
-			}
-			continue
-		}
-		if strings.Contains(p, "=") {
-			kv := strings.SplitN(p, "=", 2)
-			k := strings.TrimSpace(kv[0])
-			v := strings.TrimSpace(kv[1])
-			v = strings.Trim(v, "\"")
-			if k != "" && v != "" {
-				out[k] = v
-			}
-			continue
-		}
-	}
-	if len(out) == 0 {
-		return nil
+	out := make(map[string]string, len(headMsg))
+	for k, v := range headMsg {
+		out[k] = gconv.String(v)
 	}
 	return out
 }
 
-// PayloadToQuery 将 payload 转为 url.Values
-func PayloadToQuery(payload map[string]any) (url.Values, error) {
+// GetModelBody 获取数据库中保存的模型信息
+func GetModelBody(v map[string]any) map[string]any {
+	if v == nil {
+		return nil
+	}
+	if p, ok := v["body"]; ok {
+		return gconv.Map(p)
+	}
+	return v
+}
+
+// BodyToQuery 将 body 转为 url.Values
+func BodyToQuery(payload map[string]any) (url.Values, error) {
 	q := url.Values{}
 	for k, v := range payload {
 		if v == nil {
@@ -164,3 +148,142 @@ func PayloadToQuery(payload map[string]any) (url.Values, error) {
 	}
 	return q, nil
 }
+
+// PullTaskResult 轮询查询任务结果直到完成
+func PullTaskResult(ctx context.Context, taskID string, queryConfig map[string]any) (map[string]any, error) {
+	// 1. 解析配置
+	url := gconv.String(queryConfig["url"])
+	method := gconv.String(queryConfig["method"])
+	headers, _ := queryConfig["headers"].(map[string]any)
+	interval := gconv.Int(queryConfig["interval_seconds"])
+	if interval <= 0 {
+		interval = 2
+	}
+
+	if method == "" {
+		method = "GET"
+	}
+
+	// 2. 构建参数
+	params := map[string]any{"id": taskID}
+
+	// 3. 替换 URL 中的 {id}
+	finalURL := replaceURLParams(url, params)
+
+	// 4. 构建请求体
+	bodyCfg, _ := queryConfig["body"].(map[string]any)
+	body := buildParams(bodyCfg, params)
+
+	// 5. 轮询
+	for {
+		select {
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		default:
+		}
+
+		var reqBody io.Reader
+		if method == "POST" && body != nil {
+			bs, _ := json.Marshal(body)
+			reqBody = bytes.NewReader(bs)
+		}
+
+		req, err := http.NewRequestWithContext(ctx, method, finalURL, reqBody)
+		if err != nil {
+			return nil, fmt.Errorf("创建请求失败: %w", err)
+		}
+
+		for k, v := range headers {
+			req.Header.Set(k, gconv.String(v))
+		}
+		if req.Header.Get("Content-Type") == "" && reqBody != nil {
+			req.Header.Set("Content-Type", "application/json")
+		}
+
+		client := &http.Client{Timeout: 30 * time.Second}
+		resp, err := client.Do(req)
+		if err != nil {
+			g.Log().Warningf(ctx, "[PullTaskResult] 请求失败 taskID=%s err=%v", taskID, err)
+			time.Sleep(time.Duration(interval) * time.Second)
+			continue
+		}
+
+		if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+			all, _ := io.ReadAll(resp.Body)
+			resp.Body.Close()
+			g.Log().Warningf(ctx, "[PullTaskResult] 请求异常 taskID=%s status=%d body=%s", taskID, resp.StatusCode, string(all))
+			time.Sleep(time.Duration(interval) * time.Second)
+			continue
+		}
+
+		var result map[string]any
+		if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+			resp.Body.Close()
+			g.Log().Warningf(ctx, "[PullTaskResult] 解析失败 taskID=%s err=%v", taskID, err)
+			time.Sleep(time.Duration(interval) * time.Second)
+			continue
+		}
+		resp.Body.Close()
+
+		status := gconv.String(result["status"])
+		g.Log().Infof(ctx, "[PullTaskResult] 轮询 taskID=%s status=%s", taskID, status)
+
+		switch status {
+		case "succeeded":
+			return result, nil
+		case "failed", "expired":
+			return result, fmt.Errorf("任务失败: status=%s", status)
+		case "queued", "running":
+			time.Sleep(time.Duration(interval) * time.Second)
+			continue
+		default:
+			// 兼容没有 status 字段的情况，直接返回
+			return result, nil
+		}
+	}
+}
+
+// buildParams 构建请求参数，用 params 覆盖 bodyCfg 中对应 key
+func buildParams(bodyCfg map[string]any, params map[string]any) map[string]any {
+	result := make(map[string]any, len(bodyCfg)+len(params))
+	for k, v := range bodyCfg {
+		result[k] = v
+	}
+	for k, v := range params {
+		result[k] = v
+	}
+	return result
+}
+
+// replaceURLParams 替换 URL 中的 {key}
+func replaceURLParams(url string, params map[string]any) string {
+	re := regexp.MustCompile(`\{([^}]+)\}`)
+	return re.ReplaceAllStringFunc(url, func(s string) string {
+		key := strings.Trim(s, "{}")
+		if val, ok := params[key]; ok {
+			return gconv.String(val)
+		}
+		return s
+	})
+}
+
+// replaceBodyParams 用 params 覆盖 body 中对应 key
+func replaceBodyParams(bodyCfg map[string]any, params map[string]any) map[string]any {
+	result := make(map[string]any)
+	for k, v := range bodyCfg {
+		result[k] = v
+	}
+	for k, v := range params {
+		result[k] = v
+	}
+	return result
+}
+
+// InjectCallbackURL 将回调地址注入到请求体中
+func InjectCallbackURL(ctx context.Context, payload map[string]any, callbackURL string) map[string]any {
+	if callbackURL == "" {
+		return payload
+	}
+	payload[callbackURL] = GetCallbackURL(ctx, "/task/modelCallback")
+	return payload
+}