91 lines
3.1 KiB
D
91 lines
3.1 KiB
D
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import std.algorithm : filter, map, startsWith;
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import std.array : array, empty, front, replace;
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import std.conv : to;
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import std.datetime : dur, TimeOfDay, Clock;
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import std.getopt : defaultGetoptPrinter, getopt;
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import std.json : JSONValue;
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import std.regex : ctRegex, matchAll;
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import std.stdio : File, stdout, writeln;
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import std.string : strip;
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import std.typecons : tuple;
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import std.format : format;
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import kxml.xml : readDocument, XmlNode;
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import requests : postContent;
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import substitution;
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auto parseTime(in string input)
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{
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auto matches = matchAll(input, ctRegex!(`(?P<hours>\d+):(?P<minutes>\d+)`));
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auto actualTime = TimeOfDay(matches.front["hours"].to!int, matches.front["minutes"].to!int);
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matches.popFront;
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if (!matches.empty)
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{
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auto expectedTime = TimeOfDay(matches.front["hours"].to!int,
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matches.front["minutes"].to!int);
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return tuple(expectedTime, actualTime - expectedTime);
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}
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return tuple(actualTime, dur!"minutes"(0));
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}
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auto getRowContents(XmlNode[] rows)
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{
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return rows.map!(row => row.parseXPath("//td")[1 .. $ - 1].map!((column) {
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auto link = column.parseXPath("//a");
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if (!link.empty)
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return link.front.getCData.replace("...", "");
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return column.getCData;}));
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}
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void main(string[] args)
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{
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string fileName;
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string busStop = "Universität Regensburg";
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string substitutionFileName = "replacement.txt";
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auto helpInformation = getopt(args,
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"file|f", "The file that the data is written to.", &fileName,
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"stop|s", "The bus stop for which to fetch data.", &busStop,
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"replacement-file|r", "The file that contais the direction name replacement info.", &substitutionFileName);
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if (helpInformation.helpWanted)
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{
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defaultGetoptPrinter("Some information about the program.", helpInformation.options);
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return;
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}
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auto content = postContent("http://txt.bayern-fahrplan.de/textversion/bcl_abfahrtstafel",
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["limit" : "20",
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"useRealtime" : "1",
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"name_dm" : busStop,
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"mode" : "direct",
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"type_dm" : "any",
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"itdLPxx_bcl" : "true"]);
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auto currentTime = Clock.currTime;
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loadSubstitutionFile(substitutionFileName);
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JSONValue j = ["time" : "%02s:%02s".format(currentTime.hour, currentTime.minute)];
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j.object["departures"] = readDocument(cast(string) content.data)
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.parseXPath(`//table[@id="departureMonitor"]/tbody/tr`)[1 .. $]
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.getRowContents
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.filter!(row => !row.empty)
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.map!(a => ["departure" : a[0].parseTime[0].to!string[0 .. $ - 3],
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"delay" : a[0].parseTime[1].total!"minutes".to!string,
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"line" : a[1],
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"direction" : a[2].substitute])
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.array.JSONValue;
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if (fileName !is null)
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{
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auto output = File(fileName, "w");
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scope(exit) output.close;
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output.writeln(j.toPrettyString.replace("\\/", "/"));
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}
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else
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{
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j.toPrettyString.replace("\\/", "/").writeln;
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}
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}
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