feat: added modules

core/controllers/export.go

@@ -0,0 +1,127 @@
+package controllers
+
+import (
+	"errors"
+	"fmt"
+	"github.com/crawlab-team/crawlab/core/constants"
+	"github.com/crawlab-team/crawlab/core/export"
+	"github.com/crawlab-team/crawlab/core/interfaces"
+	"github.com/gin-gonic/gin"
+	"net/http"
+)
+
+var ExportController ActionController
+
+func getExportActions() []Action {
+	ctx := newExportContext()
+	return []Action{
+		{
+			Method:      http.MethodPost,
+			Path:        "/:type",
+			HandlerFunc: ctx.postExport,
+		},
+		{
+			Method:      http.MethodGet,
+			Path:        "/:type/:id",
+			HandlerFunc: ctx.getExport,
+		},
+		{
+			Method:      http.MethodGet,
+			Path:        "/:type/:id/download",
+			HandlerFunc: ctx.getExportDownload,
+		},
+	}
+}
+
+type exportContext struct {
+	csvSvc  interfaces.ExportService
+	jsonSvc interfaces.ExportService
+}
+
+func (ctx *exportContext) postExport(c *gin.Context) {
+	exportType := c.Param("type")
+	exportTarget := c.Query("target")
+	exportFilter, _ := GetFilter(c)
+
+	var exportId string
+	var err error
+	switch exportType {
+	case constants.ExportTypeCsv:
+		exportId, err = ctx.csvSvc.Export(exportType, exportTarget, exportFilter)
+	case constants.ExportTypeJson:
+		exportId, err = ctx.jsonSvc.Export(exportType, exportTarget, exportFilter)
+	default:
+		HandleErrorBadRequest(c, errors.New(fmt.Sprintf("invalid export type: %s", exportType)))
+		return
+	}
+	if err != nil {
+		HandleErrorInternalServerError(c, err)
+		return
+	}
+
+	HandleSuccessWithData(c, exportId)
+}
+
+func (ctx *exportContext) getExport(c *gin.Context) {
+	exportType := c.Param("type")
+	exportId := c.Param("id")
+
+	var exp interfaces.Export
+	var err error
+	switch exportType {
+	case constants.ExportTypeCsv:
+		exp, err = ctx.csvSvc.GetExport(exportId)
+	case constants.ExportTypeJson:
+		exp, err = ctx.jsonSvc.GetExport(exportId)
+	default:
+		HandleErrorBadRequest(c, errors.New(fmt.Sprintf("invalid export type: %s", exportType)))
+	}
+	if err != nil {
+		HandleErrorInternalServerError(c, err)
+		return
+	}
+
+	HandleSuccessWithData(c, exp)
+}
+
+func (ctx *exportContext) getExportDownload(c *gin.Context) {
+	exportType := c.Param("type")
+	exportId := c.Param("id")
+
+	var exp interfaces.Export
+	var err error
+	switch exportType {
+	case constants.ExportTypeCsv:
+		exp, err = ctx.csvSvc.GetExport(exportId)
+	case constants.ExportTypeJson:
+		exp, err = ctx.jsonSvc.GetExport(exportId)
+	default:
+		HandleErrorBadRequest(c, errors.New(fmt.Sprintf("invalid export type: %s", exportType)))
+	}
+	if err != nil {
+		HandleErrorInternalServerError(c, err)
+		return
+	}
+
+	switch exportType {
+	case constants.ExportTypeCsv:
+		c.Header("Content-Type", "text/csv")
+	case constants.ExportTypeJson:
+		c.Header("Content-Type", "text/plain")
+	default:
+		HandleErrorBadRequest(c, errors.New(fmt.Sprintf("invalid export type: %s", exportType)))
+	}
+	if err != nil {
+		HandleErrorInternalServerError(c, err)
+		return
+	}
+	c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=%s", exp.GetDownloadPath()))
+	c.File(exp.GetDownloadPath())
+}
+
+func newExportContext() *exportContext {
+	return &exportContext{
+		csvSvc:  export.GetCsvService(),
+		jsonSvc: export.GetJsonService(),
+	}
+}