package egovframework.util.excel;

import org.apache.poi.ss.usermodel.*;

import java.io.IOException;
import java.io.OutputStream;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;

public interface ExcelFile { // (1)
	void write(OutputStream stream) throws IOException;

	void writeWithEncryption(OutputStream stream, String password) throws IOException;

	default <T> void createCell(Row row, int column, T value, CellStyle style) {
		if (value == null) {
			return; // avoid NPE
		}
		Cell cell = row.createCell(column);
		if (value instanceof Integer) {
			cell.setCellValue((Integer)value);
		} else if (value instanceof Long) {
			cell.setCellValue((Long)value);
		} else if (value instanceof Double) {
			cell.setCellValue((Double)value);
		} else if (value instanceof Float) {
			cell.setCellValue((Float)value);
		} else if (value instanceof Boolean) {
			cell.setCellValue((Boolean)value);
		} else if (value instanceof LocalDateTime) {
			LocalDateTime dateTime = (LocalDateTime)value;
			cell.setCellValue(dateTime.format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
		} else if (value instanceof LocalDate) {
			LocalDate date = (LocalDate)value;
			cell.setCellValue(date.format(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
		} else if (value instanceof LocalTime) {
			LocalTime time = (LocalTime)value;
			cell.setCellValue(time.format(DateTimeFormatter.ofPattern("HH:mm:ss")));
		} else {
			cell.setCellValue(value.toString());
		}
		cell.setCellStyle(style);

	}

	default CellStyle createCellStyle(Workbook wb, boolean isBold) {
		CellStyle style = wb.createCellStyle();
		Font font = wb.createFont();
		font.setBold(isBold);
		style.setFont(font);
		return style;
	}
}