// ==UserScript==
// @name			YouTube HD Override
// @namespace		http://www.youtube.com/
// @version			2.0
// @description		Makes every YouTube video run in the highest definition
// @include			http://*.youtube.com/*
// @include			https://*.youtube.com/*
// @exclude			http://apiblog.youtube.com/*
// @exclude			https://apiblog.youtube.com/*
// @run-at			document-end
// @copyright		Prehistoricman Inc. 2015
// @downloadURL none
// ==/UserScript==

console.log("YouTube HD Override loaded")

HDOSettings = {}
if (localStorage.HDOverride == undefined) { //Define Settings for the first time
	HDOSettings.HD = true
	HDOSettings.VideoAutoPlay = false
	HDOSettings.ChannelAutoPlay = false
	HDOSettings.DASHPlayback = false
	localStorage.HDOverride = JSON.stringify(HDOSettings)
} else {
	HDOSettings = JSON.parse(localStorage.HDOverride)
}
function SaveHDOSettings() {
	localStorage.HDOverride = JSON.stringify(HDOSettings)
}

var LastHREF = location.href
var LastPlayer = false

var Debugging = false

if (Debugging) {
	console.trace()
}

function Print(output) { //It would be immoral to spam others' consoles.
	if (Debugging) {
		console.log(output)
	}
}

function PauseChannelVideo() {
	PauseInterval = setInterval(function () {
		document.getElementById("c4-player").pauseVideo()
		Print("Paused channel video")
		if (document.getElementById("c4-player").getPlayerState() == 2) {
			clearInterval(PauseInterval)
			Print("Pause interval stopped")
		}
	}, 30)
}

function SetHD() {
	HDInterval = setInterval(function () {
		var OverridePlayer = document.getElementById("movie_player")
		if (OverridePlayer) {
			if (OverridePlayer.setPlaybackQuality) {
				OverridePlayer.setPlaybackQuality(OverridePlayer.getAvailableQualityLevels()[0])
				if (!HDOSettings.VideoAutoPlay) {
					OverridePlayer.setAutonavState(1) //Disable auto-nav
				}
				Print("HD'd video")
				
				if (!HDOSettings.DASHPlayback && ytplayer && ytplayer.config && ytplayer.config.args) {
					ytplayer.config.args.dash = "0"
					ytplayer.config.args.dashmpd = ""
					Print("Set DASH")
				} else if (!HDOSettings.DASHPlayback) { //if we can't find ytplayer
					Print("DASH set failed")
				}
				Print("Set quality")
			}
			if (OverridePlayer.getPlaybackQuality() == OverridePlayer.getAvailableQualityLevels()[0]) {
				clearInterval(HDInterval)
				Print("Quality interval stopped")
			} else {
				Print("check fail")
				console.log(OverridePlayer.getPlaybackQuality(), OverridePlayer.getAvailableQualityLevels()[0])
			}
		} else {
			Print("Player not found yet")
		}
	}, 100)
}

function ApplyFixes() {
	Print("ApplyFixes at " + location.href)
	if (location.href.substring(0, 31) == "https://www.youtube.com/channel" |
		location.href.substring(0, 31) == "http://www.youtube.com/channel/" |
		location.href.substring(0, 28) == "https://www.youtube.com/user"    |
		location.href.substring(0, 28) == "http://www.youtube.com/user/") {
		if (!HDOSettings.ChannelAutoPlay) { //Everybody hates this shit
			PauseChannelVideo() //Pause video on channel pages
		}
	} else if (HDOSettings.HD) { 
		SetHD() //Set HD on video pages
	} else {
		Print("Who knows???")
		Print(location.href)
		Print(HDOSettings)
	}
}

ApplyFixes()

setInterval(function () {
	if (location.href != LastHREF) { //href has changed
		LastHREF = location.href
		Print("Href change")
		ApplyInterval = setInterval(function () { //Waits for a new player to load
			if (document.getElementById("player") != LastPlayer) {
				ApplyFixes()
				clearInterval(ApplyInterval)
			}
		}, 100)
	}
}, 200)