// Filesystem
var fs = require('fs');

//ImageMagick for image manipulation
var im = require('imagemagick');

// AWS SDK
var AWS = require('aws-sdk');
AWS.config.loadFromPath('./aws_config.json');

//UUID
var uuid = require('node-uuid');

//Moment for Date/Time
var moment = require('moment');

exports.upload = function (request) {

    // Check if POST of GET
    if (request.payload) {

        // Set uploaded file(s) 
        var f = request.payload.files;

        // Get path of uploaded file(s)
        var path = f.path; 

        // Get image name(s) of uploaded file(s)
        var imageName = f.originalFilename

        // Set path/file for thumbnail(s)
        var thumbPath = __dirname + "/uploads/thumbs/" + imageName;

        // Read in file object
        fs.readFile(path, function (err, data) {

        /// Log an error
        if(!imageName){

            console.log("There was an error")

        } else {

              // Use ImageMagick to copy/resize to a new thumbnail
              fs.writeFile(path, data, function (err) {
                  im.resize({
                      srcPath: path,
                      dstPath: thumbPath,
                      width:   80
                    }, function(err, stdout, stderr){
                      if (err) throw err;
                      console.log('Resized');
                        // Upload thumbail to S3 buckets
                        var s3 = new AWS.S3();
                        fs.readFile(thumbPath, function(err, thumb_buffer){
                            var params = {
                                Bucket: 'yourbucketname',
                                Key: 'thumb_' + f.originalFilename,
                                Body: thumb_buffer,
                                ACL:'public-read'
                            };

                            s3.putObject(params, function (perr, pres) {
                                if (perr) {
                                    console.log("Error uploading data: ", perr);
                                } else {
                                    console.log("Successfully uploaded thumb to myBucket/myKey");
                                    // Delete the thumbnail file from server
                                    fs.unlink(thumbPath, function (err) {
                                        if (err) throw err;
                                            console.log('Successfully deleted ' + f.path);
                                    });
                                }
                            });
                        });
                    });

              });
            }
        });
        
        // Upload original file to S3 bucket
        var s3 = new AWS.S3();
        fs.readFile(path, function(err, file_buffer){
            var params = {
                Bucket: 'yourbucketname',
                Key: f.originalFilename,
                Body: file_buffer,
                ACL:'public-read'
            };

            s3.putObject(params, function (perr, pres) {
                if (perr) {
                    console.log("Error uploading data: ", perr);
                } else {
                    console.log("Successfully uploaded data to myBucket/myKey");
                    // Delete the original file from  server
                    fs.unlink(path, function (err) {
                        if (err) throw err;
                            console.log('Successfully deleted path: ' + f.path);
                    });
                    // JSON return for JQuery Upload
                    request.reply('{"files": [{ "name": "' + f.originalFilename + '","size": ' + f.size + ',"url": "https:\/\/s3.amazonaws.com\/yourbucketname\/' + f.originalFilename + '","thumbnailUrl": "https:\/\/s3.amazonaws.com\/yourbucketname\/thumb_' + f.originalFilename + '","deleteUrl": "https:\/\/s3.amazonaws.com\/yourbucketname\/' + f.originalFilename + '","deleteType": "DELETE"}]}');
                                }
            });
        });

    }
    else {
        // GET request reply
        request.reply("Ready");
    }
}