feat(widget): support chatwoot direct upload attachments

internal/handler/api/v1/upload_handler.go

@@ -2,6 +2,7 @@ package v1
 
 import (
 	"net/http"
+	"strings"
 
 	"github.com/gin-gonic/gin"
 
@@ -48,6 +49,23 @@ func (h *UploadHandler) Upload(c *gin.Context) {
 // DirectUpload handles POST /api/v1/widget/direct_uploads — widget direct file upload.
 // Reference: Chatwoot POST /widget/direct_uploads
 func (h *UploadHandler) DirectUpload(c *gin.Context) {
+	if strings.Contains(c.GetHeader("Content-Type"), "application/json") {
+		var req service.ActiveStorageDirectUploadRequest
+		if err := c.ShouldBindJSON(&req); err != nil {
+			response.AbortWithStatusError(c, http.StatusBadRequest, response.ErrValidation, "invalid direct upload metadata")
+			return
+		}
+		req.WebsiteToken = c.Query("website_token")
+		req.AuthToken = c.GetHeader("X-Auth-Token")
+		result, svcErr := h.svc.CreateWidgetDirectUpload(c.Request.Context(), req)
+		if svcErr != nil {
+			handleServiceError(c, svcErr)
+			return
+		}
+		c.JSON(http.StatusOK, result)
+		return
+	}
+
 	fileHeader, err := c.FormFile("file")
 	if err != nil {
 		response.AbortWithStatusError(c, http.StatusBadRequest, response.ErrValidation, "file is required")
@@ -65,6 +83,15 @@ func (h *UploadHandler) DirectUpload(c *gin.Context) {
 	response.OK(c, result)
 }
 
+func (h *UploadHandler) CompleteWidgetDirectUpload(c *gin.Context) {
+	result, svcErr := h.svc.CompleteWidgetDirectUpload(c.Request.Context(), c.Param("upload_uuid"), c.Request.Body)
+	if svcErr != nil {
+		handleServiceError(c, svcErr)
+		return
+	}
+	response.OK(c, result)
+}
+
 // AccountDirectUpload handles POST /api/v1/accounts/:id/direct_uploads — account-level staged upload.
 // Returns a blob/UUID for later attachment to messages.
 // Reference: Chatwoot POST /api/v1/accounts/:account_id/direct_uploads
@@ -90,4 +117,4 @@ func (h *UploadHandler) AccountDirectUpload(c *gin.Context) {
 	}
 
 	response.OK(c, result)
-}
+}