import { Meteor } from 'meteor/meteor';
import { FilesCollection } from 'meteor/ostrio:files';
import { createBucket } from '/imports/api/lib/grid/createBucket.js';
import { createObjectId } from '/imports/api/lib/grid/createObjectId.js';
import fs from 'fs';

// import { Mongo } from 'meteor/mongo';

let filesBucket;

if (Meteor.isServer) {
  filesBucket = createBucket('allFiles');
}

const FilesCol = new FilesCollection({
  collectionName: 'Files',
  allowClientCode: true,
  debug: Meteor.isServer && process.env.NODE_ENV === 'development',
  onBeforeUpload (file) {
    // if (file.size <= 10485760 && /png|jpg|jpeg/i.test(file.extension)) {
    //   return true;
    // }
    // return 'Please upload image, with size equal or less than 10MB';
    return true;
  },

  onAfterUpload(file) {
    const self = this;

    // here you could manipulate your file
    // and create a new version, for example a scaled 'thumbnail'
    // ...

    console.log("file_versions: ", file.versions);

    // then we read all versions we have got so far
    Object.keys(file.versions).forEach(versionName => {
      const metadata = { ...file.meta, versionName, fileId: file._id };
      fs.createReadStream(file.versions[ versionName ].path)

      // this is where we upload the binary to the bucket
        .pipe(filesBucket.openUploadStream(
          file.name,
          {
            contentType: file.type || 'binary/octet-stream',
            metadata
          }
        ))

        // and we unlink the file from the fs on any error
        // that occurred during the upload to prevent zombie files
        .on('error', async err => {
          console.error(err);
          self.unlink(await this.collection.findOneAsync(file._id), versionName); // Unlink files from FS
        })

        // once we are finished, we attach the gridFS Object id on the
        // FilesCollection document's meta section and finally unlink the
        // upload file from the filesystem
        .on('finish', Meteor.bindEnvironment(async ver => {
          const property = `versions.${versionName}.meta.gridFsFileId`;
          await self.collection.updateAsync(file._id, {
            $set: {
              [ property ]: ver._id.toHexString()
            }
          });
          self.unlink(await this.collection.findOneAsync(file._id), versionName); // Unlink files from FS
        }))
    })
  },

  interceptDownload (http, file, versionName) {
    const { gridFsFileId } = file.versions[ versionName ].meta || {};
    if (gridFsFileId) {
      const gfsId = createObjectId({ gridFsFileId });
      const readStream = filesBucket.openDownloadStream(gfsId);
      readStream.on('data', (data) => {
        http.response.write(data);
      })

      readStream.on('end', () => {
        http.response.end('end');
      })

      readStream.on('error', () => {
        // not found probably
        // eslint-disable-next-line no-param-reassign
        http.response.statusCode = 404;
        http.response.end('not found');
      })

      http.response.setHeader('Cache-Control', this.cacheControl);
      http.response.setHeader('Content-Disposition', `inline; filename="${file.name}"`);
    }
    return Boolean(gridFsFileId) // Serve file from either GridFS or FS if it wasn't uploaded yet
  },

  onAfterRemove (files) {
    files.forEach(file => {
      Object.keys(file.versions).forEach(versionName => {
        const gridFsFileId = (file.versions[ versionName ].meta || {}).gridFsFileId;
        if (gridFsFileId) {
          const gfsId = createObjectId({ gridFsFileId });
          filesBucket.deleteAsync(gfsId, err => { if (err) console.error(err); });
        }
      });
    });
  }

});

// if (Meteor.isClient) {
//   Meteor.subscribe('files.all');
// }

if (Meteor.isServer) {
  
  Meteor.publish('files.all', () => {
      return FilesCol.collection.find({userId: Meteor.userId()});
  });

  Meteor.publish('avatars.all', () => {
    return Avatars.collection.find();
  });

  
  Meteor.publish('avatarsregistre.all', () => {
    return AvatarsRegistre.collection.find();
  });

  // Meteor.publish('files.avatar', () => {
  //   return FilesCol.collection.find({
  //     userId: Meteor.userId(),
  //     'meta.type': 'avatar'
  //   });
  // });

  // Meteor.publish('files.avatarRegister', (avatarId) => {
  //   if (avatarId) {
  //     if (!Meteor.userId()) {
  //       return FilesCol.collection.find({_id: avatarId});
  //     }
  //   } else {
  //     return [];
  //   }
  // });

  // Meteor.publish('files.folderTree', () => {
  //   //if (upId) {
  //     if (Meteor.userId()) {
  //       return FilesCol.collection.find({
  //         userId: Meteor.userId(),
  //         "meta.type": "folderTree"
  //       });
  //     } else {
  //       return [];
  //     }
  // });

  // // files.cartellEventUpload
  // Meteor.publish('files.cartellEventUpload', (cartellId) => {
  //   if (cartellId) {
  //     //if (!Meteor.userId()) {
  //     return FilesCol.collection.find({_id: cartellId});
  //   } else {
  //     return [];
  //   }
  // });
}

Meteor.methods({

    'RenameFile'(data){
        // if (!Meteor.userId()){
        // throw new Meteor.Error('not-authorized');
        // }
        FilesCol.insertAsync({
            ...data,
            createdAt: new Date(),
            user: Meteor.userId()
        });
    },

    'ReassignaUserIdFile'(userIdProvisional, uid){
      // if (!Meteor.userId()){
      // throw new Meteor.Error('not-authorized');
      // }

      FilesCol.collection.updateAsync({_id: userIdProvisional}, {
        $set: {
          meta: {
            userId: uid
          }
        }
      });
    },

    'RemoveFile'(fileToRemoveId) {
      FilesCol.collection.removeAsync(fileToRemoveId);
    }


  // getFolderTreeFiles() {
  //   return FilesCol.find({
  //     // userId: Meteor.userId(), 
  //     // 'meta.type': 'folderTree'
  //   }).fetch();
  // }
              // 'dates.update'(data){
              //     // if (Meteor.userId() !== allcod.user){
              //     // throw new Meteor.Error('not-authorized');
              //     // }
              //     DatesCollection.update(data._id, {
              //         $set: {
              //             ...data
              //         }
              //     });
              // },

              // 'dates.delete'(data){
              //     // if (Meteor.userId() !== allcod.user){
              //     // throw new Meteor.Error('not-authorized');
              //     // }
              //     DatesCollection.remove(data._id);
              // },

              // 'dates.remove'(id, context) {
              //     DatesCollection.remove(id);
              // }

});

// Create a new instance of the FilesCollection
const AvatarsRegistre = new FilesCollection({
  collectionName: 'AvatarsRegistre',
  storagePath: 'assets/avatarRegistreStorage',
  downloadRoute: '/avatar-registre',
  permissions: 0o755,
  cacheControl: 'public, max-age=31536000',
  allowClientCode: false, // Disallow remove files from Client
});

// Create a new instance of the FilesCollection
const Avatars = new FilesCollection({
  collectionName: 'Avatars',
  storagePath: 'assets/avatarStorage',
  downloadRoute: '/avatar',
  permissions: 0o755,
  cacheControl: 'public, max-age=31536000',
  allowClientCode: false, // Disallow remove files from Client
});

Meteor.methods({

  'registraUsuariAmbAvatar'(username, email, password, avatar) {
    // Check if the username and email are valid
    if (!username || !email || !password) {
      throw new Meteor.Error('invalid-input', 'Please fill in all fields');
    }

    // Check if the avatar is a valid file
    if (!avatar || !avatar.file) {
      throw new Meteor.Error('invalid-avatar', 'Please select a valid avatar image');
    }

    // Upload the avatar to GridFS
    const avatarId = Avatars.insert(avatar.file, (err, fileObj) => {
      if (err) {
        throw new Meteor.Error('avatar-upload-failed', 'Failed to upload avatar');
      }
    });

    // Create the new user
    const userId = Accounts.createUser({
      username,
      email,
      password,
      profile: {
        avatar: avatarId,
      },
    });

    // Return the new user's ID
    return userId;
  }

});

export { FilesCol, AvatarsRegistre, Avatars };