const fflogsBase = "https://www.fflogs.com:443/v1/report/";
const fflogsFightsAPI = fflogsBase + "fights/"
const fflogsEventsAPI = fflogsBase + "events/"
const api = "?api_key=";
// ?end=1591130148287&sourceid=5

var indexViewModel;
var classColors = {
	"Scholar": "#4c49b2",
	"WhiteMage": "#c7bf8e",
	"Astrologian": "#8c501e",
	"Paladin": "#8aa8a8",
	"Gunbreaker": "#6c6433",
	"Warrior": "#610e0a",
	"DarkKnight": "#241011",
	"Ninja": "#b30000",
	"Dragoon": "#3b4ba0",
	"Monk": "#c58d1c",
	"Samurai": "#9e6d35",
	"RedMage": "#47132a",
	"BlackMage": "#261947",
	"Summoner": "#59922b",
	"Dancer": "#ceb8ab",
	"Machinist": "#6c6433",
	"Barde": "#6d8432"
};

var trackedCooldowns = {
	7436: {name: "Chain Stratagem", cooldown: 120000},
	16536: {name: "Temperance", cooldown: 180000},
	2258: {name: "Trick Attack", cooldown: 60000}
};

// Do stuff when HTML parsing is ready
$(() => {
	ko.bindingHandlers.foreachprop = {
		transformObject: function (obj) {
		  var properties = [];
		  ko.utils.objectForEach(obj, function (key, value) {
			properties.push({ key: key, value: value });
		  });
		  return properties;
		},
		init: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
		  var properties = ko.pureComputed(function () {
			var obj = ko.utils.unwrapObservable(valueAccessor());
			return ko.bindingHandlers.foreachprop.transformObject(obj);
		  });
		  ko.applyBindingsToNode(element, { foreach: properties }, bindingContext);
		  return { controlsDescendantBindings: true };
		}
	};
	// Document is ready
	function IndexViewModel() {
		var self = this;
		self.apiKey = ko.observable(localStorage.getItem("apikey"));
		self.logID = ko.observable(localStorage.getItem("fflogid"));
		self.fights = ko.observableArray();
		self.friendlies = ko.observableArray();
		self.enemies = ko.observableArray();
		self.trackedActors = ko.observableArray();
		self.displayFightPicker = ko.observable(false);
		self.selectedFight = ko.observable();

		self.getLog = async function() {
			var log = await fetchLog(self.logID());
			
			self.fights(log["fights"]);
			self.friendlies(log["friendlies"]);
			self.enemies(log["enemies"]);
			self.displayFightPicker(true);
		};

		self.formatTime = function(fight) {
			let secs = (fight.end_time - fight.start_time)/1000;
			let mins = Math.floor(secs / 60);
			let rest = Math.floor(secs % 60);
			return mins+"m"+rest+"s";
		};

		self.apiKeyChanged = function() {
			console.log("Setting apiKey to ",self.apiKey());
			localStorage.setItem("apikey",self.apiKey());
			localStorage.setItem("fflogid", self.logID());
		};

		self.fightChanged = async function() {
			console.log("Fight has changed to ",self.selectedFight());
			var events = await fetchEvents(self.selectedFight());

			var actors = await filterEvents(self.selectedFight(),events);
			/*
			for(var actor of actors) {
				var updated = false;
				for(var oldactor of self.trackedActors()) {
					if(actor.id === oldactor.id) {
						oldactor.trackedEvents(actor.trackedEvents());
						oldactor.trackedEvents.valueHasMutated();
						updated = true;
					}
				}
				if(!updated) {
					self.trackedActors.push(actor);
				}
			}*/
			//FIXME: This is a hack, we should instead somehow update the trackedEvents observable so only this part is rerendered
			self.trackedActors([]);
			self.trackedActors(actors);
			for(var actor of self.trackedActors()) {
				console.log("tracked: ",actor.trackedEvents());
			}
		};

		self.textColor = function(job) {
			return classColors[job.type];
		};

		self.actorIDToName = function(id) {
			for(var actor of self.friendlies()) {
				if(id == actor.id) {
					return actor.name;
				}
			}
			for(var actor of self.enemies()) {
				if(id == actor.id) {
					return actor.name;
				}
			}
			return null;
		};

		self.getActorByID = function(id) {
			for(var actor of self.friendlies()) {
				if(id == actor.id) {
					return actor;
				}
			}
			for(var actor of self.enemies()) {
				if(id == actor.id) {
					return actor;
				}
			}
			return null;
		};
	};
	indexViewModel = new IndexViewModel();
	ko.applyBindings(indexViewModel);
});

async function filterEvents(fight, events) {
	var result = [];
	for(var event of events) {
		// Do we even care about this cast?
		if(!(event.ability.guid in trackedCooldowns)) {
			continue;
		}
		var found = false;
		for(var actor of result) {
			if(actor.id == event.sourceID) {
				found = true;
				break;
			}
		}
		if(!found) {
			console.log("Found new actor: "+event.sourceID);
			var actor = indexViewModel.getActorByID(event.sourceID);
			actor.trackedEvents = ko.observableArray();
			result.push(actor);
		}
		actor.trackedEvents.push(event);
		console.log(event);
	}
	console.log("Generated arrays: ",result);
	return result;
}

async function fetchEvents(fight) {
	let baseUrl = fflogsEventsAPI + "casts/" + indexViewModel.logID() + api + indexViewModel.apiKey() + "&translate=true" + "&end=" + fight.end_time;
	let start_time = fight.start_time;
	let result = [];

	let snip = {};
	do {
		let url = baseUrl + "&start=" + start_time;
		console.log("Requesting "+url);
		snip = await fetchEventsSnippet(url);
		for(var e of snip.events) {
			result.push(e);
		}
		//result = result.concat(snip.events);
		start_time = snip.nextPageTimestamp;
	} while(snip.nextPageTimestamp)

	return result;
}

async function fetchEventsSnippet(url) {
	var res = await fetch(url);
    if (!res.ok) {
        console.log(res);
        throw Error(res.text);
	}
	var events = await res.json();

	console.log(events);
	return events;
}

// API request um JSON zu erhalten
async function fetchLog(logId) {
	let url = fflogsFightsAPI + logId + api + indexViewModel.apiKey();

	console.log("Requesting "+logId);
    var res = await fetch(url);
    if (!res.ok) {
        console.log(res);
        throw Error(res.text);
	}
	var log = await res.json();

	//get specific fight data
	console.log(log);
	return log;
}