From 7886d019dc9da733167d56e826622fe8f34ac092 Mon Sep 17 00:00:00 2001
From: Jacek Kowalski <Jacek@jacekk.info>
Date: Fri, 13 Nov 2020 21:42:59 +0000
Subject: [PATCH] [map] Add previous/next trip indicators

---
 common.js |  330 +++++++++++++++++++++++++++++++-----------------------
 1 files changed, 190 insertions(+), 140 deletions(-)

diff --git a/common.js b/common.js
index b434bf1..af26776 100644
--- a/common.js
+++ b/common.js
@@ -1,10 +1,10 @@
-"use strict";
+'use strict';
 
 var ttss_urls = {
 	t: 'proxy_tram.php',
 	// t: 'http://www.ttss.krakow.pl/internetservice',
 	b: 'proxy_bus.php',
-	// b: 'http://91.223.13.70/internetservice',
+	// b: 'http://ttss.mpk.krakow.pl/internetservice',
 };
 var ttss_types = ['t', 'b'];
 
@@ -22,29 +22,32 @@
  ********/
 
 function Deferred(promise, request) {
-	return {
-		promise: promise,
-		request: request,
-		abort: function() {
-			request.abort.bind(request)
-			return Deferred(promise, request);
-		},
-		done: function(func) {
-			return Deferred(promise.then(func), request);
-		},
-		fail: function(func) {
-			return Deferred(promise.catch(func), request);
-		},
-		always: function(func) {
-			return Deferred(promise.finally(func), request);
-		},
-	};
+	this.promise = promise;
+	this.request = request;
 }
-
+Deferred.prototype = {
+	promise: null,
+	request: null,
+	abort: function() {
+		this.request.abort.bind(this.request);
+		return new Deferred(this.promise, this.request);
+	},
+	done: function(func) {
+		return new Deferred(this.promise.then(func.bind(this)), this.request);
+	},
+	fail: function(func) {
+		return new Deferred(this.promise.catch(func.bind(this)), this.request);
+	},
+	always: function(func) {
+		return new Deferred(this.promise.finally(func.bind(this)), this.request);
+	},
+};
 Deferred.all = function(iterable) {
-	return Deferred(
+	return new Deferred(
 		Promise.all(
-			iterable.map(x => x.promise)
+			iterable.map(function(x) {
+				return x.promise;
+			})
 		)
 	);
 };
@@ -52,15 +55,23 @@
 var $ = {
 	timeout: 10000,
 	dataType: 'json',
-	get: function(url) {
+	get: function(url, headers) {
 		var self = this;
 		var request = new XMLHttpRequest();
 		var promise = new Promise(function(resolve, reject) {
+			request.open('GET', url, true);
+			if(headers) {
+				Object.keys(headers).forEach(function (header) {
+					request.setRequestHeader(header, headers[header]);
+				});
+			}
 			request.timeout = self.timeout;
 			request.onreadystatechange = function() {
 				if(this.readyState == 4) {
-					if(this.status == 200) {
-						if(self.dataType == 'json') {
+					if(this.status == 304) {
+						resolve();
+					} else if(this.status == 200) {
+						if(self.dataType === 'json') {
 							resolve(JSON.parse(this.responseText));
 						} else {
 							resolve(this.responseText);
@@ -70,10 +81,9 @@
 					}
 				}
 			};
-			request.open("GET", url, true);
 			request.send();
 		});
-		return Deferred(promise, request);
+		return new Deferred(promise, request);
 	},
 };
 
@@ -84,8 +94,6 @@
 
 var script_version;
 var script_version_xhr;
-
-var vehicles_info = {};
 
 function checkVersion() {
 	if(script_version_xhr) script_version_xhr.abort();
@@ -110,120 +118,21 @@
 	setInterval(checkVersion, 3600000);
 }
 
+/**********
+ * ARRAYS *
+ **********/
 
-/***********
- * PARSING *
- ***********/
-
-function parseStatus(status) {
-	switch(status.status) {
-		case 'STOPPING':
-		case 'PREDICTED':
-			if(status.actualRelativeTime <= 0)
-				return lang.boarding_sign;
-			if(status.actualRelativeTime >= 60)
-				return lang.time_minutes_prefix + Math.floor(status.actualRelativeTime / 60) + lang.time_minutes_suffix;
-			return lang.time_seconds_prefix + status.actualRelativeTime + lang.time_seconds_suffix;
-		case 'DEPARTED':
-			return lang.time_minutes_ago_prefix + Math.floor(-status.actualRelativeTime / 60) + lang.time_minutes_ago_suffix;
-		default:
-			return status.mixedTime;
+function deepMerge(a1, a2) {
+	if(typeof a1 !== 'object' || typeof a2 !== 'object') {
+		return a2;
 	}
-}
-
-function parseTime(date, time) {
-	var result = new Date(date.getFullYear(), date.getMonth(), date.getDay());
-	var time_split = time.split(':');
-	result.setHours(time_split[0]);
-	result.setMinutes(time_split[1]);
-	
-	if(result.getTime() - date.getTime() > 72000000) {
-		result.setTime(result.getTime() - 86400000);
-	}
-	
-	if(date.getTime() - result.getTime() > 72000000) {
-		result.setTime(result.getTime() + 86400000);
-	}
-	
-	return result;
-}
-
-function parseDelay(status) {
-	if(!status.actualTime) return lang.unknown_sign;
-	if(!status.plannedTime) return lang.unknown_sign;
-	
-	var now = new Date();
-	var actual = parseTime(now, status.actualTime);
-	var planned = parseTime(now, status.plannedTime);
-	
-	return lang.time_minutes_prefix + ((actual.getTime() - planned.getTime()) / 1000 / 60) + lang.time_minutes_suffix;
-}
-
-function parseVehicle(vehicleId) {
-	if(!vehicleId) return false;
-	if(!vehicles_info || !vehicles_info[vehicleId]) {
-		return false;
-	} else {
-		var vehicle = vehicles_info[vehicleId];
-		return {
-			vehicleId: vehicleId,
-			prefix: vehicle['num'].substr(0, 2),
-			id: vehicle['num'].substr(2, 3),
-			num: vehicle['num'],
-			type: vehicle['type'],
-			low: vehicle['low']
-		};
-	}
-}
-
-function updateVehicleInfo() {
-	return $.get(
-		'https://mpk.jacekk.net/vehicles/'
-	).done(function(data) {
-		vehicles_info = data;
+	Object.keys(a2).forEach(function (key) {
+		a1[key] = deepMerge(a1[key], a2[key]);
+		if(a1[key] === null) {
+			delete a1[key];
+		}
 	});
-}
-
-function depotIdToVehicleId(depotId, typeHelper) {
-	if(typeHelper) {
-		for(var prop in vehicles_info) {
-			if(prop.substr(0,1) == typeHelper && vehicles_info[prop]['num'].substr(2) == depotId) {
-				return prop;
-			}
-		}
-	} else {
-		for(var prop in vehicles_info) {
-			if(vehicles_info[prop]['num'] == depotId) {
-				return prop;
-			}
-		}
-	}
-}
-
-function displayVehicle(vehicleInfo) {
-	if(!vehicleInfo) return document.createTextNode('');
-	
-	var span = document.createElement('span');
-	span.className = 'vehicleInfo';
-	
-	var floor_type = '';
-	if(vehicleInfo.low == 0) {
-		setText(span, lang.high_floor_sign);
-		floor_type = lang.high_floor;
-	} else if(vehicleInfo.low == 1) {
-		setText(span, lang.partially_low_floor_sign);
-		floor_type = lang.partially_low_floor;
-	} else if(vehicleInfo.low == 2) {
-		setText(span, lang.low_floor_sign);
-		floor_type = lang.low_floor;
-	}
-	
-	span.title = lang.tram_type_pattern
-		.replace('$num', vehicleInfo.num)
-		.replace('$type', vehicleInfo.type)
-		.replace('$floor', floor_type);
-	
-	return span;
+	return a1;
 }
 
 
@@ -254,3 +163,144 @@
 	deleteChildren(element);
 	element.appendChild(document.createTextNode(text));
 }
+
+
+/*****************
+ * VEHICLES INFO *
+ *****************/
+
+function VehiclesInfo() {
+	this.data = {};
+	this.watchers = [];
+}
+VehiclesInfo.prototype = {
+	update: function () {
+		return $.get(
+			'https://mpk.jacekk.net/vehicles/'
+		).done(function(data) {
+			this.data = data;
+			this.watchers.forEach(function(watcher) {
+				watcher(this);
+			});
+		}.bind(this));
+	},
+	addWatcher: function(callback) {
+		this.watchers.push(callback);
+	},
+
+	get: function(vehicleId) {
+		if(!vehicleId) return false;
+		if(typeof this.data[vehicleId] === "undefined") {
+			return false;
+		}
+		return this.data[vehicleId];
+	},
+	getParsed: function (vehicleId) {
+		var vehicle = this.get(vehicleId);
+		if(!vehicle) return false;
+		return {
+			vehicleId: vehicleId,
+			prefix: vehicle['num'].substr(0, 2),
+			id: vehicle['num'].substr(2, 3),
+			num: vehicle['num'],
+			type: vehicle['type'],
+			low: vehicle['low']
+		};
+	},
+	depotIdToVehicleId: function(depotId, typeHelper) {
+		var prop;
+		depotId = depotId.toString();
+		if(typeHelper) {
+			for(prop in this.data) {
+				if(prop.substr(0,1) === typeHelper && this.data[prop]['num'].substr(2) === depotId) {
+					return prop;
+				}
+			}
+		} else {
+			for(prop in this.data) {
+				if(this.data[prop]['num'] === depotId) {
+					return prop;
+				}
+			}
+		}
+	},
+};
+var vehicles_info = new VehiclesInfo();
+
+
+/***********
+ * PARSING *
+ ***********/
+
+function normalizeName(string) {
+	return string.replace('.', '. ').replace('  ', ' ');
+}
+
+function parseStatus(status) {
+	switch(status.status) {
+		case 'STOPPING':
+		case 'PREDICTED':
+			if(status.actualRelativeTime <= 0)
+				return lang.boarding_sign;
+			if(status.actualRelativeTime >= 60)
+				return lang.time_minutes_prefix + Math.floor(status.actualRelativeTime / 60) + lang.time_minutes_suffix;
+			return lang.time_seconds_prefix + status.actualRelativeTime + lang.time_seconds_suffix;
+		case 'DEPARTED':
+			return lang.time_minutes_ago_prefix + Math.floor(-status.actualRelativeTime / 60) + lang.time_minutes_ago_suffix;
+		default:
+			return status.mixedTime;
+	}
+}
+
+function parseTime(date, time) {
+	var result = new Date(date.getTime());
+	var time_split = time.split(':');
+	result.setHours(time_split[0], time_split[1], 0);
+	
+	if(result.getTime() - date.getTime() > 72000000) {
+		result.setTime(result.getTime() - 86400000);
+	}
+	
+	if(date.getTime() - result.getTime() > 72000000) {
+		result.setTime(result.getTime() + 86400000);
+	}
+	
+	return result;
+}
+
+function parseDelay(status) {
+	if(!status.actualTime) return lang.unknown_sign;
+	if(!status.plannedTime) return lang.unknown_sign;
+	
+	var now = new Date();
+	var actual = parseTime(now, status.actualTime);
+	var planned = parseTime(now, status.plannedTime);
+	
+	return lang.time_minutes_prefix + ((actual.getTime() - planned.getTime()) / 1000 / 60) + lang.time_minutes_suffix;
+}
+
+function displayVehicle(vehicleInfo) {
+	if(!vehicleInfo) return document.createTextNode('');
+	
+	var span = document.createElement('span');
+	span.className = 'vehicleInfo';
+	
+	var floor_type = '';
+	if(vehicleInfo.low === 0) {
+		setText(span, lang.high_floor_sign);
+		floor_type = lang.high_floor;
+	} else if(vehicleInfo.low === 1) {
+		setText(span, lang.partially_low_floor_sign);
+		floor_type = lang.partially_low_floor;
+	} else if(vehicleInfo.low === 2) {
+		setText(span, lang.low_floor_sign);
+		floor_type = lang.low_floor;
+	}
+	
+	span.title = lang.tram_type_pattern
+		.replace('$num', vehicleInfo.num)
+		.replace('$type', vehicleInfo.type)
+		.replace('$floor', floor_type);
+	
+	return span;
+}

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