/******************************************************************************
 * This program simply copies a file to the console character by
 * character like the Unix 'cat' program.
 * 
 * Copyright © 2020 Richard Lesh.  All rights reserved.
 *****************************************************************************/

import java.io.BufferedReader;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import org.pureprogrammer.Utils;

public class FileIO1 {

	static void readTextFile(String filespec) throws IOException {
		BufferedReader ifh = Files.newBufferedReader(FileSystems.getDefault().getPath(filespec), Charset.forName("UTF-8"));
		if (!ifh.ready()) {
			throw new IOException("Problem opening input file!");
		}
		int c;
		while ((c = ifh.read()) != -1) {
			System.out.print(String.valueOf(Character.toChars(c)));
		}
		try {ifh.close();} catch (IOException ex) {};
	}

	public static void main(String[] args) {
		if (args.length != 1) {
			System.out.println(Utils.join("", "Syntax: ", "FileIO1", " {filename}"));
			System.exit(1);
		}
		final String FILESPEC = args[0];
		try {
			readTextFile(FILESPEC);
		} catch (IOException ex) {
			System.out.println(Utils.join("", "Error: ", Utils.exceptionMessage(ex)));
		} catch (Exception ex) {
			System.out.println("Unexpected File Read Error");
		}
	}
}