addui

internal/infrastructure/http/handlers/file_download_handler.go

@@ -0,0 +1,92 @@
+package handlers
+
+import (
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"go.uber.org/zap"
+
+	"tyapi-server/internal/application/product"
+	"tyapi-server/internal/shared/interfaces"
+)
+
+// FileDownloadHandler 文件下载处理器
+type FileDownloadHandler struct {
+	uiComponentAppService product.UIComponentApplicationService
+	responseBuilder       interfaces.ResponseBuilder
+	logger                *zap.Logger
+}
+
+// NewFileDownloadHandler 创建文件下载处理器
+func NewFileDownloadHandler(
+	uiComponentAppService product.UIComponentApplicationService,
+	responseBuilder interfaces.ResponseBuilder,
+	logger *zap.Logger,
+) *FileDownloadHandler {
+	return &FileDownloadHandler{
+		uiComponentAppService: uiComponentAppService,
+		responseBuilder:       responseBuilder,
+		logger:                logger,
+	}
+}
+
+// DownloadUIComponentFile 下载UI组件文件
+// @Summary 下载UI组件文件
+// @Description 下载UI组件文件
+// @Tags 文件下载
+// @Accept json
+// @Produce application/octet-stream
+// @Param id path string true "UI组件ID"
+// @Success 200 {file} file "文件内容"
+// @Failure 400 {object} interfaces.Response "请求参数错误"
+// @Failure 404 {object} interfaces.Response "UI组件不存在或文件不存在"
+// @Failure 500 {object} interfaces.Response "服务器内部错误"
+// @Router /api/v1/ui-components/{id}/download [get]
+func (h *FileDownloadHandler) DownloadUIComponentFile(c *gin.Context) {
+	id := c.Param("id")
+	if id == "" {
+		h.responseBuilder.BadRequest(c, "UI组件ID不能为空")
+		return
+	}
+
+	// 获取UI组件信息
+	component, err := h.uiComponentAppService.GetUIComponentByID(c.Request.Context(), id)
+	if err != nil {
+		h.logger.Error("获取UI组件失败", zap.Error(err), zap.String("id", id))
+		h.responseBuilder.InternalError(c, "获取UI组件失败")
+		return
+	}
+
+	if component == nil {
+		h.responseBuilder.NotFound(c, "UI组件不存在")
+		return
+	}
+
+	if component.FilePath == nil {
+		h.responseBuilder.NotFound(c, "UI组件文件不存在")
+		return
+	}
+
+	// 获取文件路径
+	filePath, err := h.uiComponentAppService.DownloadUIComponentFile(c.Request.Context(), id)
+	if err != nil {
+		h.logger.Error("获取UI组件文件路径失败", zap.Error(err), zap.String("id", id))
+		h.responseBuilder.InternalError(c, "获取UI组件文件路径失败")
+		return
+	}
+
+	// 设置下载文件名
+	fileName := component.ComponentName
+	if !strings.HasSuffix(strings.ToLower(fileName), ".zip") {
+		fileName += ".zip"
+	}
+
+	// 设置响应头
+	c.Header("Content-Description", "File Transfer")
+	c.Header("Content-Transfer-Encoding", "binary")
+	c.Header("Content-Disposition", "attachment; filename="+fileName)
+	c.Header("Content-Type", "application/octet-stream")
+
+	// 发送文件
+	c.File(filePath)
+}