Subversion Repositories SmartDukaan

								// Day 1 starts at the beat's own saved start location when set;

								// otherwise fall back to the user's default base. Later days

								// start where the prior day ended (handled by the Day Break flow).

								var dayStartLat = state.homeLat, dayStartLng = state.homeLng, dayStartName = state.homeName;

								if (d.dayNumber === 1) {

									var bLat = beat.startLatitude != null ? parseFloat(beat.startLatitude) : NaN;

									var bLng = beat.startLongitude != null ? parseFloat(beat.startLongitude) : NaN;

									if (!isNaN(bLat) && !isNaN(bLng)) {

										dayStartLat = bLat;

										dayStartLng = bLng;

										dayStartName = beat.startLocationName || state.homeName;

									}

								}

// Auto-order a day's stops into a nearest-neighbor route from the day's start

// point (beat start / base for day 1, prior day's end for later days). Reorders

// day.visits in place; sequence = array index downstream. Stops without valid

// coords (e.g. leads with no captured geo) are parked at the end in their

// existing relative order rather than dropped.

function sortDayByNearestNeighbor(day) {

	if (!day || !day.visits || day.visits.length < 2) return;

	var routable = [], parked = [];

	day.visits.forEach(function (v) {

		if (typeof v.lat === 'number' && typeof v.lng === 'number' && !isNaN(v.lat) && !isNaN(v.lng)) routable.push(v);

		else parked.push(v);

	});

	var haveStart = (typeof day.startLat === 'number' && typeof day.startLng === 'number' && !isNaN(day.startLat) && !isNaN(day.startLng));

	var ordered = [], curLat, curLng;

	if (haveStart) {

		curLat = day.startLat;

		curLng = day.startLng;

	} else if (routable.length > 0) {

		var first = routable.shift();

		ordered.push(first);

		curLat = first.lat;

		curLng = first.lng;

	}

	while (routable.length > 0) {

		var bestIdx = 0, bestD = Infinity;

		for (var i = 0; i < routable.length; i++) {

			var d = haversine(curLat, curLng, routable[i].lat, routable[i].lng);

			if (d < bestD) { bestD = d; bestIdx = i; }

		}

		var next = routable.splice(bestIdx, 1)[0];

		ordered.push(next);

		curLat = next.lat;

		curLng = next.lng;

	}

	day.visits.length = 0;

	ordered.forEach(function (v) { day.visits.push(v); });

	parked.forEach(function (v) { day.visits.push(v); });

}

	// Re-route the remaining stops (nearest-neighbor) before re-numbering below.

	sortDayByNearestNeighbor(day);