#pragma once

#include <Arduino.h>

template <size_t bufferLength>
class SerialReader {
	char buffer[bufferLength];

public:
    char* getBuffer() {
        return buffer;
    }

	int readLine(HardwareSerial &serial) {
		static size_t pos = 0;
		size_t rpos;
		int readCh;

		for (int i = 0, avail = serial.available(); i < avail && (readCh = serial.read()) > 0; i++) {
			switch (readCh) {
			case '\r': // Ignore CR
				break;
			case '\n': // Return on new-line
				rpos = pos;
				pos = 0;  // Reset position index ready for next time
				return rpos;
			default:
				if (pos < bufferLength - 1) {
					buffer[pos++] = readCh;
					buffer[pos] = 0;
				}
			}
		}
		return 0;
	}

};