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0
Files
omc_api/features/lm/file_export/controller.go
2024-10-18 17:26:59 +08:00

143 lines
3.7 KiB
Go

package file_export
import (
"encoding/json"
"net/http"
"os"
"path/filepath"
"be.ems/lib/file"
"be.ems/lib/log"
"be.ems/lib/services"
"be.ems/src/framework/datasource"
"be.ems/src/framework/i18n"
"be.ems/src/framework/utils/ctx"
"github.com/gin-gonic/gin"
)
type SysJobResponse struct {
SysJob
TableName string `json:"tableName"`
TableDisplay string `json:"tableDisplay"`
FilePath string `json:"filePath"`
}
type TargetParams struct {
Duration int `json:"duration"`
TableName string `json:"tableName"`
Columns string `json:"columns"` // exported column name of time string
TimeCol string `json:"timeCol"` // time stamp of column name
TimeUnit string `json:"timeUnit"` // timestamp unit: second/micro/milli
Extras string `json:"extras"` // extras condition for where
FilePath string `json:"filePath"` // file path
}
func (m *SysJob) GetFileExportTable(c *gin.Context) {
var results []SysJob
err := datasource.DefaultDB().Table(m.TableName()).Where("invoke_target=? and status=1", INVOKE_FILE_EXPORT).
Find(&results).Error
if err != nil {
c.JSON(http.StatusOK, services.ErrResp(err.Error()))
return
}
language := ctx.AcceptLanguage(c)
var response []SysJobResponse
for _, job := range results {
var params TargetParams
if err := json.Unmarshal([]byte(job.TargetParams), &params); err != nil {
c.JSON(http.StatusOK, services.ErrResp(err.Error()))
return
}
TableDisplay := i18n.TKey(language, "table."+params.TableName)
if TableDisplay == "" {
TableDisplay = params.TableName
}
response = append(response, SysJobResponse{
SysJob: job,
TableName: params.TableName,
TableDisplay: TableDisplay,
FilePath: params.FilePath,
})
}
c.JSON(http.StatusOK, services.DataResp(response))
}
func (m *FileExport) GetFileList(c *gin.Context) {
var querys FileExportQuery
if err := c.ShouldBindQuery(&querys); err != nil {
c.JSON(http.StatusOK, services.ErrResp(err.Error()))
return
}
files, err := file.GetFileInfo(querys.Path, querys.Suffix)
if err != nil {
log.Error("failed to GetFileInfo:", err)
c.JSON(http.StatusOK, services.ErrResp(err.Error()))
return
}
// split files list
lenNum := int64(len(files))
start := (querys.PageNum - 1) * querys.PageSize
end := start + querys.PageSize
var splitList []file.FileInfo
if start >= lenNum {
splitList = []file.FileInfo{}
} else if end >= lenNum {
splitList = files[start:]
} else {
splitList = files[start:end]
}
total := len(files)
c.JSON(http.StatusOK, services.TotalDataResp(splitList, total))
}
func (m *FileExport) Total(c *gin.Context) {
dir := c.Query("path")
fileCount, dirCount, err := file.GetFileAndDirCount(dir)
if err != nil {
log.Error("failed to GetFileAndDirCount:", err)
c.JSON(http.StatusOK, services.ErrResp(err.Error()))
return
}
total := fileCount + dirCount
c.JSON(http.StatusOK, services.TotalResp(int64(total)))
}
func (m *FileExport) DownloadHandler(c *gin.Context) {
dir := c.Query("path")
fileName := c.Param("fileName")
filePath := filepath.Join(dir, fileName)
file, err := os.Open(filePath)
if err != nil {
c.JSON(http.StatusOK, services.ErrResp(err.Error()))
return
}
defer file.Close()
if _, err := os.Stat(filePath); os.IsNotExist(err) {
c.JSON(http.StatusOK, services.ErrResp(err.Error()))
return
}
c.Header("Content-Disposition", "attachment; filename="+fileName)
c.Header("Content-Type", "application/octet-stream")
c.File(filePath)
}
func (m *FileExport) Delete(c *gin.Context) {
fileName := c.Param("fileName")
dir := c.Query("path")
filePath := filepath.Join(dir, fileName)
if err := os.Remove(filePath); err != nil {
c.JSON(http.StatusOK, services.ErrResp(err.Error()))
return
}
c.JSON(http.StatusNoContent, nil) // 204 No Content
}