init

serve/internal/handler/upload_handler.go

@@ -0,0 +1,222 @@
+package handler
+
+import (
+	"net/http"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/Nanqipro/YunQue-Tech-Projects/ai_english_learning/serve/internal/service"
+	"github.com/gin-gonic/gin"
+)
+
+// UploadHandler 文件上传处理器
+type UploadHandler struct {
+	uploadService service.UploadService
+}
+
+// NewUploadHandler 创建文件上传处理器
+func NewUploadHandler() *UploadHandler {
+	uploadService := service.NewUploadService("./uploads", "http://localhost:8080")
+	return &UploadHandler{
+		uploadService: uploadService,
+	}
+}
+
+// UploadAudio 上传音频文件
+func (h *UploadHandler) UploadAudio(c *gin.Context) {
+	// 获取上传的文件
+	file, err := c.FormFile("audio")
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error":   "获取文件失败",
+			"details": err.Error(),
+		})
+		return
+	}
+
+	// 验证文件类型
+	ext := strings.ToLower(filepath.Ext(file.Filename))
+	allowedTypes := []string{".mp3", ".wav", ".m4a", ".aac"}
+	isValidType := false
+	for _, allowedType := range allowedTypes {
+		if ext == allowedType {
+			isValidType = true
+			break
+		}
+	}
+
+	if !isValidType {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": "不支持的文件类型",
+			"details": "只支持 mp3, wav, m4a, aac 格式",
+		})
+		return
+	}
+
+	// 验证文件大小 (最大10MB)
+	maxSize := int64(10 * 1024 * 1024)
+	if file.Size > maxSize {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": "文件过大",
+			"details": "文件大小不能超过10MB",
+		})
+		return
+	}
+
+	// 使用上传服务保存文件
+	result, err := h.uploadService.UploadAudio(file)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{
+			"error": "文件上传失败",
+			"details": err.Error(),
+		})
+		return
+	}
+
+	// 返回上传结果
+	c.JSON(http.StatusOK, gin.H{
+		"message": "音频文件上传成功",
+		"data": result,
+	})
+}
+
+// UploadImage 上传图片文件
+func (h *UploadHandler) UploadImage(c *gin.Context) {
+	// 获取上传的文件
+	file, err := c.FormFile("image")
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error":   "获取文件失败",
+			"details": err.Error(),
+		})
+		return
+	}
+
+	// 验证文件类型
+	ext := strings.ToLower(filepath.Ext(file.Filename))
+	allowedTypes := []string{".jpg", ".jpeg", ".png", ".gif", ".webp"}
+	isValidType := false
+	for _, allowedType := range allowedTypes {
+		if ext == allowedType {
+			isValidType = true
+			break
+		}
+	}
+
+	if !isValidType {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": "不支持的文件类型",
+			"details": "只支持 jpg, jpeg, png, gif, webp 格式",
+		})
+		return
+	}
+
+	// 验证文件大小 (最大5MB)
+	maxSize := int64(5 * 1024 * 1024)
+	if file.Size > maxSize {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": "文件过大",
+			"details": "文件大小不能超过5MB",
+		})
+		return
+	}
+
+	// 使用上传服务保存文件
+	result, err := h.uploadService.UploadImage(file)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{
+			"error": "文件上传失败",
+			"details": err.Error(),
+		})
+		return
+	}
+
+	// 返回上传结果
+	c.JSON(http.StatusOK, gin.H{
+		"message": "图片文件上传成功",
+		"data": result,
+	})
+}
+
+// DeleteFile 删除文件
+func (h *UploadHandler) DeleteFile(c *gin.Context) {
+	fileID := c.Param("file_id")
+	if fileID == "" {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": "File ID is required",
+		})
+		return
+	}
+
+	// TODO: 实现实际的文件删除逻辑
+	// 目前返回模拟响应
+	c.JSON(http.StatusOK, gin.H{
+		"message": "File deleted successfully",
+		"data": gin.H{
+			"file_id": fileID,
+			"deleted": true,
+		},
+	})
+}
+
+// GetFileInfo 获取文件信息
+func (h *UploadHandler) GetFileInfo(c *gin.Context) {
+	fileID := c.Param("file_id")
+	if fileID == "" {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"error": "File ID is required",
+		})
+		return
+	}
+
+	// TODO: 实现实际的文件信息查询逻辑
+	// 目前返回模拟数据
+	result := gin.H{
+		"file_id":   fileID,
+		"filename":  "example.mp3",
+		"size":      1024000,
+		"url":       "/uploads/audio/" + fileID + ".mp3",
+		"type":      "audio",
+		"format":    "mp3",
+		"upload_at": "2024-01-15T10:30:00Z",
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"message": "File information retrieved",
+		"data":    result,
+	})
+}
+
+// GetUploadStats 获取上传统计
+func (h *UploadHandler) GetUploadStats(c *gin.Context) {
+	// 获取查询参数
+	days := c.DefaultQuery("days", "30")
+	daysInt, err := strconv.Atoi(days)
+	if err != nil || daysInt <= 0 {
+		daysInt = 30
+	}
+
+	// TODO: 实现实际的统计查询逻辑
+	// 目前返回模拟数据
+	stats := gin.H{
+		"period_days":    daysInt,
+		"total_files":    156,
+		"audio_files":    89,
+		"image_files":    67,
+		"total_size":     "245.6MB",
+		"average_size":   "1.6MB",
+		"upload_trend": []gin.H{
+			{"date": "2024-01-10", "count": 12},
+			{"date": "2024-01-11", "count": 8},
+			{"date": "2024-01-12", "count": 15},
+			{"date": "2024-01-13", "count": 10},
+			{"date": "2024-01-14", "count": 18},
+		},
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"message": "Upload statistics",
+		"data":    stats,
+	})
+}