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h("transit.isInteger",function(a){return a instanceof l?!0:"number"===typeof a&&!isNaN(a)&&Infinity!==a&&parseFloat(a)===parseInt(a,10)});h("transit.uuid",function(a){return Na(a)});h("transit.isUUID",function(a){return a instanceof O});h("transit.bigInt",Ga);h("transit.isBigInt",function(a){return a instanceof J&&"n"===a.tag});h("transit.bigDec",Ha);h("transit.isBigDec",function(a){return a instanceof J&&"f"===a.tag});h("transit.keyword",Ka);h("transit.isKeyword",function(a){return a instanceof L});
h("transit.symbol",La);h("transit.isSymbol",function(a){return a instanceof N});h("transit.binary",Pa);h("transit.isBinary",function(a){return"undefined"!=typeof Buffer&&a instanceof Buffer?!0:"undefined"!=typeof Uint8Array&&a instanceof Uint8Array?!0:a instanceof J&&"b"===a.tag});h("transit.uri",Qa);h("transit.isURI",function(a){return a instanceof J&&"r"===a.tag});h("transit.map",T);h("transit.isMap",Ta);h("transit.set",Ya);h("transit.isSet",function(a){return a instanceof U});
h("transit.list",$a);h("transit.isList",function(a){return a instanceof J&&"list"===a.tag});h("transit.quoted",Za);h("transit.isQuoted",function(a){return a instanceof J&&"'"===a.tag});h("transit.tagged",K);h("transit.isTaggedValue",function(a){return a instanceof J});h("transit.link",ab);h("transit.isLink",function(a){return a instanceof J&&"link"===a.tag});h("transit.hash",I);h("transit.hashMapLike",Aa);h("transit.hashArrayLike",Ba);h("transit.equals",G);
h("transit.extendToEQ",function(a,b){a.D=b.hashCode;a.C=b.equals;return a});h("transit.mapToObject",function(a){var b={};a.forEach(function(a,d){if("string"!==typeof d)throw Error("Cannot convert map with non-string keys");b[d]=a});return b});h("transit.objectToMap",function(a){var b=Kb(),c;for(c in a)a.hasOwnProperty(c)&&b.set(c,a[c]);return b});h("transit.decoder",function(a){return new W(a)});h("transit.UUIDfromString",Na);h("transit.randomUUID",va);h("transit.stringableKeys",Gb);
h("transit.readCache",function(){return new ua});h("transit.writeCache",function(){return new ta});})();

var t = transit;
var batchSize = 1000;

// This function is what kicks off the datasync. It will either loop through and send 1000 records at a time,
// or send the entire dataset,depending on the size of the document

function push(){
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
  var tablename = getTableName(sheet);

  if (!(getStitchID() && getStitchToken())) {
    promptForStitchCredentials();
  }
  if (!getPrimaryKey(tablename)) {
    promptForSheetPrimaryKey();
  }

  if (!(getStitchID() && getStitchToken())) {
    Browser.msgBox("Stitch API credentials are required to send the data.");
  }
  else if (!getPrimaryKey(tablename)) {
    Browser.msgBox("The primary key for this sheet is required to send the data.");
  }
  else {
    var range = sheet.getDataRange();
    var lastcolumn = range.getLastColumn();
    Logger.log(tablename);
    var newkey = normalizeHeaders(getPrimaryKey(tablename).split(','));
    var firstrow = 2
    // last row minus 1 assuming the first row is headers
    var lastrow = range.getLastRow() + 1;
    //trackdoc(lastrow, tablename);

    var i = batchSize + 1 ;
    Logger.log('starting "i" value : ' + batchSize)
    if (lastrow > i){
      largedoc(lastrow, lastcolumn, i, tablename, sheet, newkey)

    }
    else {smalldoc(lastrow, lastcolumn, i, firstrow, tablename, sheet, newkey)};
    Browser.msgBox('Finished syncing sheet "' + sheet.getSheetName() + '" to table "' + tablename + '".');
  }
}

function toTransit(data){
  var w = t.writer("json");
  return w.write(data);
}

function insertKeys(spreadsheetdata, keys, tablename, sheet, cid){
 var new_array = []
 var arrayLength = spreadsheetdata.length;
  for (var i = 0; i < arrayLength; i++) {
    //Logger.log('keys' + keys);
    var hasKeys = true;
    for each (var key in keys) {
      if (spreadsheetdata[i][key] == "") {
        hasKeys = false;
      }
    }
    if (hasKeys) {
      var record = {};
      record.client_id = parseInt(cid);
      record.action = "upsert"
      record.sequence = new Date().getTime();
      record.table_name = tablename;
      record.key_names = keys;
      record.data = spreadsheetdata[i];

      new_array.push(record);
      //Logger.log(record);
    }
    else {
      Logger.log("Skipping empty row at: " + i);
    }

  }
  return new_array
}

function largedoc(lastrow, lastcolumn, i, tablename, sheet, newkey){
  Logger.log('starting largedoc rows loop');
  // this first row setting is so the first row gets incremented by 1000 at the beginning of the while loop instead of the end.
  var firstrow = (batchSize - 2)*-1;
  // send 1000 rows at a time, asyncronosly.
  while (lastrow > i){
    firstrow = firstrow + batchSize
    //Logger.log('rows ' + firstrow + " - " + (firstrow + batchSize));
    var datarange = sheet.getRange(firstrow, 1, batchSize, lastcolumn);
    //Logger.log("datarange = " + datarange.getNumRows())
    var api = getStitchToken();
    var cid = getStitchID();
    var spreadsheetdata = getRowsData(sheet, datarange, 1);
    var payload_pre = insertKeys(spreadsheetdata, newkey, tablename, sheet, cid, api);
    var payload = toTransit(payload_pre);
    Logger.log('Payload Rows: ' + payload_pre.length);
  	var mb = roughSizeOfObject(payload) * 0.000001;
  	Logger.log('Rough Payload Bytes: ' + mb );
    //Logger.log("Payload Length" + spreadsheetdata.length)
    var url = 'https://api.stitchdata.com/v2/import/push';
    var options = {
      'method': 'post',
      "contentType" : "application/transit+json",
      "payload": payload,
      "headers": {'Authorization': 'Bearer ' + api}
    };
    //Logger.log(options)
    var response = UrlFetchApp.fetch(url, options);
    i = i + batchSize;
  }
  firstrow = firstrow + batchSize
  smalldoc(lastrow, lastcolumn, i, firstrow, tablename, sheet, newkey)
}

// For sending the entire document, if less than 1000 rows, or for sending the remainder of a large document after the loop of 1000 records at a time.
function smalldoc(lastrow, lastcolumn, i, firstrow, tablename, sheet, newkey){
  Logger.log('starting last rows');
  //Logger.log('rows ' + firstrow + " - " + lastrow);
  var length_left = lastrow - firstrow
  var datarange = sheet.getRange(firstrow, 1, length_left, lastcolumn);
  var spreadsheetdata = getRowsData(sheet, datarange, 1);
  var api = getStitchToken();
  var cid = getStitchID();
  var spreadsheetdata = getRowsData(sheet, datarange, 1);
  var payload_pre = insertKeys(spreadsheetdata, newkey, tablename, sheet, cid, api);
  var payload = toTransit(payload_pre);
  Logger.log('Payload Rows: ' + payload_pre.length);
  var mb = roughSizeOfObject(payload) * 0.000001;
  Logger.log('Rough Payload Bytes: ' + mb );
  //Logger.log(payload);
  var url = 'https://api.stitchdata.com/v2/import/push';
  var options = {
    'method': 'post',
    "contentType" : "application/transit+json",
    "payload": payload,
    "headers": {'Authorization': 'Bearer ' + api},
    "muteHttpExceptions" : true
  };
  //Logger.log(options)
  var response = UrlFetchApp.fetch(url, options);
  Logger.log(response);
  return response
}

function roughSizeOfObject( object ) {

    var objectList = [];
    var stack = [ object ];
    var bytes = 0;

    while ( stack.length ) {
        var value = stack.pop();

        if ( typeof value === 'boolean' ) {
            bytes += 4;
        }
        else if ( typeof value === 'string' ) {
            bytes += value.length * 2;
        }
        else if ( typeof value === 'number' ) {
            bytes += 8;
        }
        else if
        (
            typeof value === 'object'
            && objectList.indexOf( value ) === -1
        )
        {
            objectList.push( value );

            for( var i in value ) {
                stack.push( value[ i ] );
            }
        }
    }
    return bytes;
}

function trackdoc(lastrow, tablename) {
 var remote = SpreadsheetApp.openById('');
 var remote_sheet = remote.getSheets()[0];
 var cid = getStitchID();
 var date = new Date();
 // Appends a new row with 3 columns to the bottom of the
 // spreadsheet containing the values in the array
 remote_sheet.appendRow([cid, lastrow, tablename, date ]);
}

function promptForStitchCredentials() {
  var currentID = getStitchID();
  var idPrompt = "Input Stitch client ID. Look at the URL on the Dashboard page – the client ID is the number between /client/ and /pipeline/ (https://app.stitchdata.com/client/XXXXXX/pipeline/connections).";
  if (currentID) {
    idPrompt += ' Press cancel to keep current Stitch client ID "' + currentID + '".';
  }
  var newID = Browser.inputBox(idPrompt, Browser.Buttons.OK_CANCEL);
  if (newID != "cancel") {
    setStitchID(newID);
  }

  var currentToken = getStitchToken();
  var tokenPrompt = "Input Stitch API token. You can generate an API token by creating an Import API integration (see https://www.stitchdata.com/docs/integrations/import-api).";
  if (currentToken) {
    tokenPrompt += ' Press cancel to keep current Stitch API token "' + currentToken + '".';
  }
  var newToken = Browser.inputBox(tokenPrompt, Browser.Buttons.OK_CANCEL);
  if (newToken != "cancel") {
    setStitchToken(newToken);
  }
}

function promptForSheetPrimaryKey() {
  var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
  var tableName = getTableName(sheet);
  var currentPK = getPrimaryKey(tableName);
  var pkPrompt = "Enter a comma-separated list of the primary key(s) for this sheet (tab). Usually this will be one column, but if multiple columns make a row unique, add more.";
  if (currentPK) {
    pkPrompt += ' Press cancel to keep current primary key(s) "' + currentPK + '".';
  }
  var newPK = Browser.inputBox(pkPrompt, Browser.Buttons.OK_CANCEL);
  if (newPK != "cancel") {
    setPrimaryKey(tableName, newPK);
  }
}

function onInstall() {
  onOpen()
}

function auth() {}

function onOpen() {
  var spreadsheet = SpreadsheetApp.getActive();
  var menuItems = [
    {name: 'Sync this sheet to Stitch', functionName: 'push'},
    null,  // line separator
    {name: "Set this sheet's primary key", functionName: 'promptForSheetPrimaryKey'},
    {name: 'Set Stitch API credentials', functionName: 'promptForStitchCredentials'}
  ];
  spreadsheet.addMenu('Stitch Import', menuItems);
  function auth() {}
  auth()
}

// getRowsData iterates row by row in the input range and returns an array of objects.
// Each object contains all the data for a given row, indexed by its normalized column name.
// Arguments:
//   - sheet: the sheet object that contains the data to be processed
//   - range: the exact range of cells where the data is stored
//   - columnHeadersRowIndex: specifies the row number where the column names are stored.
//       This argument is optional and it defaults to the row immediately above range;
// Returns an Array of objects.
function getRowsData(sheet, range, columnHeadersRowIndex) {
  columnHeadersRowIndex = columnHeadersRowIndex || range.getRowIndex() - 1;
  var numColumns = range.getLastColumn() - range.getColumn() + 1;
  var headersRange = sheet.getRange(columnHeadersRowIndex, range.getColumn(), 1, numColumns);
  var headers = headersRange.getValues()[0];
  return getObjects(range.getValues(), normalizeHeaders(headers));
}

// For every row of data in data, generates an object that contains the data. Names of
// object fields are defined in keys.
// Arguments:
//   - data: JavaScript 2d array
//   - keys: Array of Strings that define the property names for the objects to create
function getObjects(data, keys) {
  var objects = [];
  for (var i = 0; i < data.length; ++i) {
    var object = {};
    var hasData = false;
    for (var j = 0; j < data[i].length; ++j) {
      var cellData = data[i][j];
      if (isCellEmpty(cellData)) {
        object[keys[j]] = null
      } else {
        object[keys[j]] = cellData;
        hasData = true;
      }
    }
    if (hasData) {
      objects.push(object);
    }
  }
  return objects;
}

// Returns an Array of normalized Strings.
// Arguments:
//   - headers: Array of Strings to normalize
function normalizeHeaders(headers) {
  var keys = [];
  for (var i = 0; i < headers.length; ++i) {
    var key = normalizeHeader(headers[i]);
    if (key.length > 0) {
      keys.push(key);
    }
  }
  return keys;
}

// Normalizes a string by lower-casing it, removing all non-alphanumeric characters, and using underscores
// to separate words.  If the first character ends up being a number it will be prefixed with an underscore.
// This function is designed to produce valid table/column names.
// Arguments:
//   - header: string to normalize
// Examples:
//   "First Name" -> "first_name"
//   "Market Cap (millions)" -> "market_cap_millions"
//   "1 number at the beginning is prefixed" -> "_1_number_at_the_beginning_is_prefixed"
function normalizeHeader(header) {
  var normalized = header.toString().toLowerCase().replace(/[^a-z0-9]+/g, '_').replace(/^_+|_+$/g, '');
  if (isDigit(normalized[0])) {
    normalized = '_' + normalized;
  }
  return normalized;
}

// Returns true if the cell where cellData was read from is empty.
// Arguments:
//   - cellData: string
function isCellEmpty(cellData) {
  return typeof(cellData) == "string" && cellData == "";
}

// Returns true if the character char is alphabetical, false otherwise.
function isAlnum(char) {
  return char >= 'A' && char <= 'Z' ||
    char >= 'a' && char <= 'z' ||
      char == '_' ||
        isDigit(char);
}

// Returns true if the character char is a digit, false otherwise.
function isDigit(char) {
  return char >= '0' && char <= '9';
}

function getStitchToken() {
  return ScriptProperties.getProperty('STITCH_TOKEN');
}
function setStitchToken(token) {
  ScriptProperties.setProperty('STITCH_TOKEN', token);
}

function getStitchID() {
  return ScriptProperties.getProperty('STITCH_ID');
}
function setStitchID(id) {
  ScriptProperties.setProperty('STITCH_ID', id);
}

function getTableName(sheet) {
  return normalizeHeader(sheet.getSheetName());
}

function getPrimaryKey(tableName) {
  return ScriptProperties.getProperty('PK_' + tableName);
}
function setPrimaryKey(tableName, key) {
  ScriptProperties.setProperty('PK_' + tableName, key);
}