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/*
*/
var moment = require('moment');
var Parser = require('../parser').Parser;
var ParsedResult = require('../../result').ParsedResult;
var PATTERN = new RegExp(
'(\\W|^)(' +
'jetzt|' +
'(?:heute|diesen)\\s*(morgen|vormittag|mittag|nachmittag|abend)|' +
'(?:heute|diese)\\s*nacht|' +
'heute|' +
'(?:(?:ü|ue)ber)?morgen(?:\\s*(morgen|vormittag|mittag|nachmittag|abend|nacht))?|' +
'(?:vor)?gestern(?:\\s*(morgen|vormittag|mittag|nachmittag|abend|nacht))?|' +
'letzte\\s*nacht' +
')(?=\\W|$)', 'i');
exports.Parser = function DECasualDateParser() {
Parser.apply(this, arguments);
this.pattern = function() { return PATTERN; }
this.extract = function(text, ref, match, opt) {
var text = match[0].substr(match[1].length);
var index = match.index + match[1].length;
var result = new ParsedResult({
index: index,
text: text,
ref: ref,
});
var refMoment = moment(ref);
var startMoment = refMoment.clone();
var lowerText = text.toLowerCase();
if (/(?:heute|diese)\s*nacht/.test(lowerText)) {
// Normally means this coming midnight
result.start.imply('hour', 22);
result.start.imply('meridiem', 1);
} else if (/^(?:ü|ue)bermorgen/.test(lowerText)) {
startMoment.add(refMoment.hour() > 1 ? 2 : 1, 'day');
} else if (/^morgen/.test(lowerText)) {
// Check not "Tomorrow" on late night
if (refMoment.hour() > 1) {
startMoment.add(1, 'day');
}
} else if (/^gestern/.test(lowerText)) {
startMoment.add(-1, 'day');
} else if (/^vorgestern/.test(lowerText)) {
startMoment.add(-2, 'day');
} else if (/letzte\s*nacht/.test(lowerText)) {
result.start.imply('hour', 0);
if (refMoment.hour() > 6) {
startMoment.add(-1, 'day');
}
} else if (lowerText === 'jetzt') {
result.start.imply('hour', refMoment.hour());
result.start.imply('minute', refMoment.minute());
result.start.imply('second', refMoment.second());
result.start.imply('millisecond', refMoment.millisecond());
}
var secondMatch = match[3] || match[4] || match[5];
if (secondMatch) {
switch (secondMatch.toLowerCase()) {
case 'morgen':
result.start.imply('hour', 6);
break;
case 'vormittag':
result.start.imply('hour', 9);
break;
case 'mittag':
result.start.imply('hour', 12);
break;
case 'nachmittag':
result.start.imply('hour', 15);
result.start.imply('meridiem', 1);
break;
case 'abend':
result.start.imply('hour', 18);
result.start.imply('meridiem', 1);
break;
case 'nacht':
result.start.imply('hour', 0);
break;
}
}
result.start.assign('day', startMoment.date())
result.start.assign('month', startMoment.month() + 1)
result.start.assign('year', startMoment.year())
result.tags['DECasualDateParser'] = true;
return result;
}
}
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