// ==UserScript==
// @name        LSS Mission in area check
// @version     1.2.0
// @description Checks whether a mission is inside a polygon.
// @author      Crazycake
// @include     /https:\/\/www.leitstellenspiel.de/
// @include     /https:\/\/www.leitstellenspiel.de/missions/\d+/
// @grant       none
// @update-URL  https://github.com/Cr4zyc4k3/LSS/raw/master/LSS_mission_in_area_check.user.js
// ==/UserScript==

(function () {
	'use strict';

	//config
	var useOwnCoordinates = false;
	var borderCoordinates = [];

	if (borderCoordinates.length > 0) {
		setLS(borderCoordinates);
	} else if (
		(borderCoordinates.length =
			0 &&
			JSON.parse(localStorage.getItem('LSS_mission_in_area_check')) !== 'undefined' &&
			JSON.parse(localStorage.getItem('LSS_mission_in_area_check')) !== null)
	) {
		borderCoordinates = getLS();
	}

	var url = window.location.pathname;
	if (window.top == window.self && !useOwnCoordinates) {
		var configBtn =
			'<button type="button" id="stateBtn" style="backgroundcolor:white;color:black dispaly:none" class="leaflet-bar leaflet-control leaflet-control-custom" data-toggle="collapse" title="Bundeslandauswahl"><span class="glyphicon glyphicon-cog"></span></button><div id="stateInput" class="leaflet-bar leaflet-control leaflet-control-custom" style="display:none; background:white; position: relative" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"> <div class="modal-header"><button type="button" class="close" data-dismiss="modal" aria-label="Close" id="close"><span aria-hidden="true">&times;</span></button></div><div class="modal-body"><label for="stateSelect">Bundeslandauswahl: </label><br><select class="form-control" id="stateSelect" multiple></select></div><div class="modal-footer"><button id="submitStates" type="button" class="btn btn-success">Speichern</button><button id="resetStates" type="button" class="btn btn-danger">Löschen</button></div></div>';
		var mapDownLeft = document.getElementsByClassName('leaflet-bottom leaflet-left');
		var mapDownLeftArr = [...mapDownLeft];
		mapDownLeftArr[0].innerHTML = configBtn;
		document.getElementById('stateBtn').addEventListener('click', toggleVisability);
		document.getElementById('close').addEventListener('click', toggleVisability);

		function toggleVisability() {
			var stateInput = document.getElementById('stateInput');
			var stateBtn = document.getElementById('stateBtn');
			if (stateInput.style.display === 'none') {
				stateInput.style.display = 'block';
			} else {
				stateInput.style.display = 'none';
			}
			if (stateBtn.style.display === 'none') {
				stateBtn.style.display = 'block';
			} else {
				stateBtn.style.display = 'none';
			}
		}
		$.getJSON(
			'https://raw.githubusercontent.com/isellsoap/deutschlandGeoJSON/master/2_bundeslaender/4_niedrig.geo.json',
			function (data) {
				var states = [];
				states = data.features;
				for (var i = 0; i < states.length; i++) {
					var option = document.createElement('option');
					option.value = states[i].properties.name;
					option.innerHTML = states[i].properties.name;
					document.getElementById('stateSelect').appendChild(option);
				}
				document.getElementById('submitStates').addEventListener('click', function () {
					setLS();
					borderCoordinates = [];
					var selectOptions = document.getElementById('stateSelect');
					for (var i = 0; i < selectOptions.options.length; i++) {
						console.log(selectOptions.options[i].selected + ' - ' + selectOptions.options[i].value);
						if (selectOptions.options[i].selected) {
							switch (selectOptions.options[i].value) {
								case 'Baden-Württemberg':
									borderCoordinates = borderCoordinates.concat(states[0].geometry.coordinates[0]);
									break;
								case 'Bayern':
									borderCoordinates = borderCoordinates.concat(states[1].geometry.coordinates[0]);
									break;
								case 'Berlin':
									borderCoordinates = borderCoordinates.concat(states[2].geometry.coordinates[0]);
									break;
								case 'Brandenburg':
									borderCoordinates = borderCoordinates.concat(states[3].geometry.coordinates[0]);
									break;
								case 'Bremen':
									borderCoordinates = borderCoordinates.concat(states[4].geometry.coordinates[0]);
									break;
								case 'Hamburg':
									borderCoordinates = borderCoordinates.concat(states[5].geometry.coordinates[0]);
									break;
								case 'Hessen':
									borderCoordinates = borderCoordinates.concat(states[6].geometry.coordinates[0]);
									break;
								case 'Mecklenburg-Vorpommern':
									borderCoordinates = borderCoordinates.concat(states[7].geometry.coordinates[0]);
									break;
								case 'Niedersachsen':
									borderCoordinates = borderCoordinates.concat(states[8].geometry.coordinates[0]);
									break;
								case 'Nordrhein-Westfalen':
									borderCoordinates = borderCoordinates.concat(states[9].geometry.coordinates[0]);
									break;
								case 'Rheinland-Pfalz':
									borderCoordinates = borderCoordinates.concat(states[10].geometry.coordinates[0]);
									break;
								case 'Saarland':
									borderCoordinates = borderCoordinates.concat(states[11].geometry.coordinates[0]);
									break;
								case 'Sachsen-Anhalt':
									borderCoordinates = borderCoordinates.concat(states[12].geometry.coordinates[0]);
									break;
								case 'Sachsen':
									borderCoordinates = borderCoordinates.concat(states[13].geometry.coordinates[0]);
									break;
								case 'Schleswig-Holstein':
									borderCoordinates = borderCoordinates.concat(states[14].geometry.coordinates[0]);
									break;
								case 'Thüringen':
									borderCoordinates = borderCoordinates.concat(states[15].geometry.coordinates[0]);
									break;
								default:
									break;
							}
							console.log(borderCoordinates);
							setLS(borderCoordinates);
						}
					}
				});
				document.getElementById('resetStates').addEventListener('click', function () {
					setLS();
				});
			}
		);
	}
	if (url.includes('mission')) {
		var missionId = url.split('/')[2];
		var missionUrl = window.top.document.getElementById('mission_caption_' + missionId);
		var missionLatitude = missionUrl.getAttribute('data-latitude');
		var missionLongitude = missionUrl.getAttribute('data-longitude');
		window.top.borderCoordinates = getLS();
		var missionCoordinates = [missionLongitude, missionLatitude];
		if (window.top.borderCoordinates == null && !useOwnCoordinates) {
			alert('Keine Grenze angegeben! Alle Einsätze werden außerhalb des Gebiets deklariert!');
			window.top.borderCoordinates = [
				[0, 0],
				[0, 0],
			];
		}
		var missionIsInPolygon = inside(missionCoordinates, window.top.borderCoordinates);
		if (!missionIsInPolygon) {
			var shareBtn = document.getElementById('mission_alliance_share_btn');
			shareBtn.classList.add('btn-warning');
			shareBtn.classList.remove('btn-success');
			var shareAlarmForwardBtn = document.getElementsByClassName('alert_next_alliance');
			for (var i = 0; i < shareAlarmForwardBtn.length; i++) {
				shareAlarmForwardBtn[i].classList.add('btn-warning');
				shareAlarmForwardBtn[i].classList.remove('btn-success');
			}
			var shareAllianceBtn = document.getElementsByClassName('alert_notify_alliance');
			for (var j = 0; j < shareAllianceBtn.length; j++) {
				shareAllianceBtn[j].classList.add('btn-warning');
				shareAllianceBtn[j].classList.remove('btn-success');
			}
		}
	}

	function inside(point, vs) {
		// ray-casting algorithm based on
		// https://wrf.ecse.rpi.edu/Research/Short_Notes/pnpoly.html

		var x = point[0],
			y = point[1];

		var inside = false;
		for (var i = 0, j = vs.length - 1; i < vs.length; j = i++) {
			var xi = vs[i][0],
				yi = vs[i][1];
			var xj = vs[j][0],
				yj = vs[j][1];

			var intersect = yi > y != yj > y && x < ((xj - xi) * (y - yi)) / (yj - yi) + xi;
			if (intersect) inside = !inside;
		}

		return inside;
	}

	function getLS() {
		return JSON.parse(localStorage.getItem('LSS_mission_in_area_check'));
	}

	function setLS(value) {
		localStorage.setItem('LSS_mission_in_area_check', JSON.stringify(value));
	}
})();