/**
 * A view that contains and displays data.
 * Provides functions to convert the data to CSV for exports.
 * To be enhanced by more table-related functions in the future.
 */
class DataTable extends View {
	/**
	 * Builds a cell. The default is just a normal text cell.
	 * May be overridden to implement other kinds of cells, like checkboxes.
	 */
	buildCell() {

	}

	/**
	 * Returns the effective data that is displayed in the view.
	 * By default, this just returns the raw data, but the function may be overriden to change this behaviour.
	 */
	getDisplayTableData() {
		return this.data;
	}

	/**
	 * Returns a CSV string with the table's data.
	 */
	getCSVData() {
		var data = this.getDisplayTableData();

		if (!data || data.length == 0) {
			return "";
		}

		var csvString = "";

		for (var i = 0; i < data.length; i++) {
			var rowData = data[i];

			var rowString = "";

			for (var j = 0; j < rowData.length; j++) {
				var cell = "" + rowData[j];

				if (cell.indexOf(",") != -1) {
					if (cell.indexOf("\"") != -1) {
						cell = cell.replaceAll("\"", "\"\"");
					}

					cell = "\"" + cell + "\"";
				}

				if (j > 0) {
					rowString += ",";
				}

				rowString += cell;
			}

			if (i > 0) {
				csvString += "\r\n";
			}

			csvString += rowString;
		}

		return csvString;
	}
}