List and download tender documents - worker auto translation to english job

internal/tender/handler.go

@@ -1,6 +1,10 @@
 package tender
 
 import (
+	"errors"
+	"mime"
+	"net/http"
+	"strconv"
 	"time"
 	"tm/pkg/logger"
 	"tm/pkg/response"
@@ -361,6 +365,71 @@ func (h *TenderHandler) GetDocumentSummaries(c echo.Context) error {
 	return response.Success(c, summaries, "Document summaries retrieved successfully")
 }
 
+// GetDocuments retrieves scraped documents for a tender
+// @Summary Get scraped documents for a tender
+// @Description Retrieve scraped document metadata for a specific tender
+// @Tags Tenders
+// @Produce json
+// @Param id path string true "Tender ID"
+// @Success 200 {object} response.APIResponse{data=TenderDocumentsResponse}
+// @Failure 400 {object} response.APIResponse
+// @Failure 404 {object} response.APIResponse
+// @Failure 500 {object} response.APIResponse
+// @Router /api/v1/tenders/{id}/documents [get]
+func (h *TenderHandler) GetDocuments(c echo.Context) error {
+	id := c.Param("id")
+	if id == "" {
+		return response.BadRequest(c, "Tender ID is required", "ID parameter cannot be empty")
+	}
+
+	documents, err := h.service.GetDocuments(c.Request().Context(), id)
+	if err != nil {
+		return response.NotFound(c, "Tender documents not found")
+	}
+
+	return response.Success(c, documents, "Tender documents retrieved successfully")
+}
+
+// DownloadDocuments downloads all scraped documents for a tender
+// @Summary Download scraped documents for a tender
+// @Description Stream all scraped tender documents from storage as a ZIP archive
+// @Tags Tenders
+// @Produce application/zip
+// @Param id path string true "Tender ID"
+// @Success 200 {file} file
+// @Failure 400 {object} response.APIResponse
+// @Failure 404 {object} response.APIResponse
+// @Failure 500 {object} response.APIResponse
+// @Router /api/v1/tenders/{id}/documents/download [get]
+func (h *TenderHandler) DownloadDocuments(c echo.Context) error {
+	id := c.Param("id")
+	if id == "" {
+		return response.BadRequest(c, "Tender ID is required", "ID parameter cannot be empty")
+	}
+
+	download, err := h.service.DownloadDocuments(c.Request().Context(), id)
+	if err != nil {
+		if errors.Is(err, ErrTenderDocumentNotFound) {
+			return response.NotFound(c, "Tender documents not found")
+		}
+		if errors.Is(err, ErrTenderDocumentStorageUnavailable) {
+			return response.InternalServerError(c, "Tender document storage is unavailable")
+		}
+		return response.InternalServerError(c, "Failed to download tender documents")
+	}
+	defer download.Reader.Close()
+
+	headers := c.Response().Header()
+	headers.Set(echo.HeaderContentDisposition, mime.FormatMediaType("attachment", map[string]string{
+		"filename": download.Filename,
+	}))
+	if download.Size > 0 {
+		headers.Set(echo.HeaderContentLength, strconv.FormatInt(download.Size, 10))
+	}
+
+	return c.Stream(http.StatusOK, download.ContentType, download.Reader)
+}
+
 // GetAISummary retrieves the AI-generated overall summary for a tender
 // @Summary Get AI-generated tender summary
 // @Description Retrieve the AI-generated overall summary for a tender from the AI pipeline storage