/*
 * I make no copyright claim to the contents of this file, believing it to
 * be trivial work obvious to anyone with knowledge of the field. Therefore,
 * it is in the public domain.
 */

#ifndef TECLA_OOP_H_INCLUDED
#define TECLA_OOP_H_INCLUDED

#include <libtecla.h>

// Simple RAII wrapper around libtecla
class Tecla_gl {
 public:
	Tecla_gl(size_t linelen, size_t histlen, const char* filename,
	         int histlines = 1000)
	    : _gl(new_GetLine(linelen, histlen)), _filename(filename),
	      _histlines(histlines) {
		load_history();
	}
	~Tecla_gl() {
		save_history();
		del_GetLine(_gl);
	}

	char* getline(const char* prompt, const char* start_line, int start_pos) {
		return gl_get_line(_gl, prompt, start_line, start_pos);
	}

	GlReturnStatus status() { return gl_return_status(_gl); }
	const char* error_message(char* buff = nullptr, size_t size = 0) {
		return gl_error_message(_gl, buff, size);
	}

	int save_history() {
		return gl_save_history(_gl, _filename, "#", _histlines);
	}
	int load_history() { return gl_load_history(_gl, _filename, "#"); }

	// If _gl is not null
	explicit operator bool() { return !!_gl; }

	GetLine* get_gl() { return _gl; }

 private:
	GetLine* _gl;
	const char* _filename;
	int _histlines;
};

#endif // TECLA_OOP_H_INCLUDED