#!/usr/bin/env node

/**
 * The scenario files have the following format.
 * The begin with the text "version x.x". This document describes version 1.0. 
 * The trailing 0 is optional.
 *
 * Each line of a scenario has 9 fields:
 *
 * Bucket
 * map 
 * map width
 * map height 
 * start x-coordinate
 * start y-coordinate
 * goal x-coordinate
 * goal y-coordinate
 * optimal length
 */

var fs = require('fs');

function parse(filename) {
  var content = fs.readFileSync(filename).toString();
  var lines = content.split('\n');
  var version = lines[1].split(/\s+/);
  return {
    version: version,
    scenarios: lines.slice(1, lines.length - 1).map(parseLine)
  };
}

function parseLine(line) {
  var fields = line.split(/\s+/);
  return {
    bucket: parseInt(fields[0]),
    map: fields[1],
    width: parseInt(fields[2]),
    height: parseInt(fields[3]),
    startX: parseInt(fields[4]),
    startY: parseInt(fields[5]),
    endX: parseInt(fields[6]),
    endY: parseInt(fields[7]),
    length: parseFloat(fields[8])
  };
}

exports.parse = parse;