package service

import (
    "time"
    "xps/datamodel"
    "xps/datasource"
    "xps/repositories"
    minio "xps/three_party"
)

type TargetFile struct {
    FileName string
    FilePath string
}

type UploadService interface {
    UploadFile(ocId, userId, dirId int64, file TargetFile)(*datamodel.DocFile, error)
    UploadFiles(ocId, userId, dirId int64, files []TargetFile)([]datamodel.DocFile, error)
    
}

type uploadService struct {
    repo *repositories.DocFileRepo
}

func NewUploadService() UploadService {
    return &uploadService{
        repo: repositories.NewDocFileRepo(datasource.InstanceMaster()),
    }
}

func (s* uploadService) UploadFile(ocId, userId, dirId int64, file TargetFile) (*datamodel.DocFile, error) {

    dFile, err1 := minio.UploadFile(file.FileName, file.FilePath)
    if err1 != nil {
        return nil, err1
    }
    
    fileId := NewID()
    docFile := &datamodel.DocFile{
        OcId:         ocId,
        FileId:       fileId,
        FileTitle:    dFile.FileName,
        FileIcon:     "",
        FileExt:      dFile.FileExt,
        DirId:        dirId,
        FileUrl:      dFile.FileUrl,
        FileSize:     dFile.FileSize,
        FileAuthor:   "",
        FileMimeType: dFile.FileMimeType,
        FileDesc:     "",
        UploadedAt:   time.Time{},
        UploadedBy:   0,
        CreatedBy:    userId,
        CreatedAt:    time.Time{},
        UpdatedBy:    0,
        UpdatedAt:    time.Time{},
        DeletedFlag:  0,
        DeletedBy:    0,
        DeletedAt:    time.Time{},
    }
    
    err2 := s.repo.Create(docFile)
    if err2 != nil {
        return nil, err2
    }
    return docFile, nil
}

func (s* uploadService) UploadFiles(ocId, userId, dirId int64, files []TargetFile) ([]datamodel.DocFile, error) {
    docFileList := make([]datamodel.DocFile, 0)
    
    for _, f := range files {
        // 1. Upload to minio
        dFile, err1 := minio.UploadFile(f.FileName, f.FilePath)
        if err1 != nil {
            return nil, err1
        }
        
        // 2. DocFile
        fileId := NewID()
        docFile := datamodel.DocFile{
            OcId:         ocId,
            FileId:       fileId,
            FileTitle:    dFile.FileName,
            FileIcon:     "",
            FileExt:      dFile.FileExt,
            DirId:        dirId,
            FileUrl:      dFile.FileUrl,
            FileSize:     dFile.FileSize,
            FileAuthor:   "",
            FileMimeType: dFile.FileMimeType,
            FileDesc:     "",
            UploadedAt:   time.Time{},
            UploadedBy:   0,
            CreatedBy:    userId,
            CreatedAt:    time.Time{},
            UpdatedBy:    0,
            UpdatedAt:    time.Time{},
            DeletedFlag:  0,
            DeletedBy:    0,
            DeletedAt:    time.Time{},
        }
        
        err2 := s.repo.Create(&docFile)
        if err2 != nil {
            return nil, err2
        }
        
        // 3. DocFileList
        docFileList = append(docFileList, docFile)
    }
    
    return docFileList, nil
}