🔧 chore: 初始化番茄小说 API 项目结构

新增项目基础框架，包含核心 API 实现、算法模块、HTTP 处理器等完整功能模块

internal/handlers/media.go

@@ -0,0 +1,132 @@
+package handlers
+
+import (
+	"encoding/json"
+	"fanqie/internal/fqapi"
+	"fmt"
+	"net/http"
+	"strings"
+)
+
+// HandleAudio 音频处理
+func HandleAudio(w http.ResponseWriter, r *http.Request) {
+	incrementTotal()
+	incrementAudio()
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+
+	itemIDs := r.URL.Query().Get("item_ids")
+	toneID := r.URL.Query().Get("tone_id")
+	output := r.URL.Query().Get("output")
+
+	result, err := fqapi.HandleAudio(itemIDs, toneID, output)
+	if err != nil {
+		fmt.Fprintf(w, `{"code": -1, "msg": "获取音频失败: %s"}`, err.Error())
+		return
+	}
+
+	fmt.Fprint(w, result)
+}
+
+// HandleAudioProxy 音频代理处理
+func HandleAudioProxy(w http.ResponseWriter, r *http.Request) {
+	incrementTotal()
+
+	// 从URL路径提取key: /audio/proxy/{key}
+	path := r.URL.Path
+	key := strings.TrimPrefix(path, "/audio/proxy/")
+	if key == "" || key == path {
+		http.Error(w, "缺少音频key", http.StatusBadRequest)
+		return
+	}
+
+	// 调用代理处理函数
+	data, contentType, err := fqapi.HandleAudioProxy(key)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	// 设置正确的Content-Type
+	if contentType != "" {
+		w.Header().Set("Content-Type", contentType)
+	} else {
+		w.Header().Set("Content-Type", "audio/mpeg")
+	}
+
+	// 直接播放，不强制下载
+	// 浏览器会根据Content-Type决定是播放还是下载
+	w.Write(data)
+}
+
+// HandleVideo 视频处理
+func HandleVideo(w http.ResponseWriter, r *http.Request) {
+	incrementTotal()
+	incrementVideo()
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+
+	itemIDs := r.URL.Query().Get("item_ids")
+
+	result, err := fqapi.HandleVideo(itemIDs)
+	if err != nil {
+		fmt.Fprintf(w, `{"code": -1, "msg": "获取视频失败: %s"}`, err.Error())
+		return
+	}
+
+	fmt.Fprint(w, result)
+}
+
+// HandleManga 漫画处理
+func HandleManga(w http.ResponseWriter, r *http.Request) {
+	incrementTotal()
+	incrementManga()
+	itemID := r.URL.Query().Get("item_ids")
+	if itemID == "" {
+		itemID = r.URL.Query().Get("item_id")
+	}
+
+	if itemID == "" {
+		w.Header().Set("Content-Type", "application/json; charset=utf-8")
+		fmt.Fprint(w, `{"code": -1, "msg": "缺少item_ids参数"}`)
+		return
+	}
+
+	// 检查是否要返回HTML格式
+	showHTML := r.URL.Query().Get("show_html") == "1"
+
+	// 检查输出模式参数（优先级高于配置文件）
+	// 支持：output=url / output=proxy / output=data_uri
+	outputMode := r.URL.Query().Get("output")
+
+	result, err := fqapi.HandleGetManga(itemID, showHTML, outputMode)
+	if err != nil {
+		w.Header().Set("Content-Type", "application/json; charset=utf-8")
+		fmt.Fprintf(w, `{"code": -1, "msg": "获取漫画失败: %s"}`, err.Error())
+		return
+	}
+
+	if showHTML {
+		// 返回HTML格式
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		if contentMap, ok := result.(map[string]interface{}); ok {
+			if content, ok := contentMap["content"].(string); ok {
+				fmt.Fprint(w, content)
+				return
+			}
+		}
+		fmt.Fprint(w, `<p>未找到漫画内容</p>`)
+	} else {
+		// 返回JSON格式
+		w.Header().Set("Content-Type", "application/json; charset=utf-8")
+		jsonData, err := json.Marshal(map[string]interface{}{
+			"code": 0,
+			"msg":  "success",
+			"data": result,
+		})
+		if err != nil {
+			fmt.Fprintf(w, `{"code": -1, "msg": "JSON编码失败: %s"}`, err.Error())
+			return
+		}
+		fmt.Fprint(w, string(jsonData))
+	}
+}
+