// Creates MissionControl panel with mission information before gameplay
// Manages mission pre-brief and de-brief.

Script.include(["pd_utils.js", "pd_hudPanel.js", "pd_missions.js"]);

MissionControl = function()
{
	this.MissionStates = {
		BRIEF: 0,
		DEBRIEF: 1,
	};
	
	this._missionState = this.MissionStates.BRIEF;
	this.txt_missionCompleteUrl = pd_path("images/missionComplete.png");
	this.isFinished = false;  // True when all text shown to player
	this.panel = this.createMissionPanel();
	this.missionList = this.initializeMissions();	
	this.currentMission = null;
	this._textIndex = 0;  // Keeps track of which line of text is currently being presented
	this._presenting = false;
	this._missionIndex = -1;  // Tracks which mission the player is on currently
	this._timerOn = false; // Used for timing stuff
	this._missionDelay = 0; // Time until mission is debriefed
	this._timeStamp = null; // General timer marker
	this._txt_missionComplete = this.createMissionCompleteText(); // Text image to show at mission complete
}

// Checks current mission needs against scan record
// Note: scanHistory is a dictionary with key = etd type, value = ScannedTarget object (see Scanner)
MissionControl.prototype.checkMissionProgress = function(scanHistory)
{
	var playerScans = Object.keys(scanHistory);
	
	// Test current mission here...
	switch (this.currentMission.type)
	{
		case pd_MissionTypes.COUNT_ANY:
			//printDebug("MissionControl.COUNT_ANY: " + this.currentMission.targetCount);	
			if (playerScans.length >= this.currentMission.targetCount)
			{
				printDebug("MissionControl.checkMissionProgress,Target count complete!");	
				// TODO: Mission success
				return true;
				
			}
			break;
		
		case pd_MissionTypes.SAMPLE_TARGET:
			if (this.currentMission.targetEtd in scanHistory)
			{
				var numScans = scanHistory[this.currentMission.targetEtd].entityIds.length;
				if (numScans >= this.currentMission.targetCount)
				{
					printDebug("MissionControl.checkMissionProgress, Mission " + this.currentMission.name + ", Complete!");
					// TODO: Mission Success
					return true;
				}
				
				
			}
			break;
	}
	return false;
}

// Shows panel for next mission, starts display
MissionControl.prototype.startNextMission = function()
{
	this._missionIndex++;
	this.currentMission = this.missionList[this._missionIndex];
	printDebug("MissionControl.startNextMission, ");
	this.startBrief();
}

// Introduce mission to player
MissionControl.prototype.startBrief = function()
{
	this._missionState = this.MissionStates.BRIEF;
	this.isFinished = false;
	this._textIndex = 0;
	this.panel.setStaticText("lbl_mission", "MISSION: " + this.currentMission.name);
	this.panel.setDisplayText("mainText", this.currentMission.introText[this._textIndex]);
	this.panel.show();
	this._presenting = true;
	this.panel.startAnimation();
}

// Show mission success text at end
MissionControl.prototype.startDebrief = function()
{
	var _this = this;
	this._missionState = this.MissionStates.DEBRIEF;
	this.isFinished = false;
	overlay_show(this._txt_missionComplete, true);
	this._textIndex = 0;
	this.panel.setStaticText("lbl_mission", "MISSION: " + this.currentMission.name);
	this.panel.setDisplayText("mainText", this.currentMission.successText[this._textIndex]);
	
	//overlay_show(this._txt_missionComplete);
	Script.setTimeout( function() {
		overlay_show(_this._txt_missionComplete, false);
		_this.panel.show();
		_this._presenting = true;
		_this.panel.startAnimation();
	}, 2000 );
}
	
// Defines order and existence of missions via unique mission structures.
// Missions MUST appear here or they won't be in the game.
MissionControl.prototype.initializeMissions = function()
{
	// NOTE: These missions must match those in pd_missions.js
	var missionList = [];
	missionList.push( mis_layOfTheLand );
	missionList.push( mis_drekHunt );
	missionList.push( mis_riverWater );
	missionList.push( mis_abandonedMine );
	return missionList;
}

// Creates final "Mission Complete" image text
MissionControl.prototype.createMissionCompleteText = function()
{
	var imageAspectRatio = 1200/103;
	var imageWidth = Window.innerWidth * 0.75;
	var imageHeight = imageWidth/imageAspectRatio;
	var xPos = (Window.innerWidth - imageWidth)/2;
	var imageOverlay = createImageOverlay(this.txt_missionCompleteUrl, {x:xPos, y:0.7*Window.innerHeight/2, z:0}, false, imageWidth, imageHeight );
	return imageOverlay;
}

// Initializes panel and text elements
MissionControl.prototype.createMissionPanel = function()
{
	var frameUrl = pd_path("images/missionFrame.png");
	var hudPanel = new HudPanel({x:Window.innerWidth/2 - 150, y:130}, {x:300, y:420}, {x:10,y:0});
	var titleColor = {red:255, green:255, blue:255};
	var spacebarColor = {red:255, green:40, blue:40};
	var textColor = {red:40, green:200, blue:40 };
	
	hudPanel.addRectangle("bgRectangle", {x:0, y:0}, hudPanel.size.x, hudPanel.size.y, {red:20, green:20, blue:20} );
	hudPanel.addImageFrame("frame", {x:-23, y:-21}, hudPanel.size.x + 47, hudPanel.size.y + 43, frameUrl );
	hudPanel.addStaticText("lbl_mission", "MISSION BRIEFING", {x:0, y:0}, hudPanel.size.x, titleColor );
	hudPanel.addDynamicText("mainText", "", {x:0, y:30}, hudPanel.size.x, textColor );
	hudPanel.addDynamicText("spaceToContinue", "[ Press Spacebar To Continue ]", {x:35, y:hudPanel.size.y - 30}, hudPanel.size.x, spacebarColor );

	hudPanel.hide();
	return hudPanel;
}

MissionControl.prototype.onKeyPress = function(event)
{
	if (event.key == SPACEBAR_CHARCODE)
	{
		this._textIndex++;
		
		var playingText;
		if (this._missionState == this.MissionStates.BRIEF)
			playingText = this.currentMission.introText;
		else
			playingText = this.currentMission.successText;
			
		if (playingText.length > this._textIndex)
		{
			this.panel.setDisplayText("mainText", playingText[this._textIndex]);
			this.panel.startAnimation();
		}
		else
		{
			this.isFinished = true;
			this.panel.hide();
		}
	}
}
	
// This function must be wired to the appropriate callback via parent objects
MissionControl.prototype.scriptUpdate = function(deltaTime)
{
	//printDebug("MissionControl.scriptUpdate");
	this.panel.scriptUpdate(deltaTime);	
}
	
MissionControl.prototype.deconstruct = function()
{
	this.panel.deconstruct();
}