// Driver.js
// 2006-12-31
/*
Copyright (C) 2007 Julio DI Egidio
http://julio.diegidio.name
mailto:julio@diegidio.name

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

The Software shall be used for Good, not Evil.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
////////////////////////////////////////////////////////////////
// driver (Driver.js) //////////////////////////////////////////

// {singleton}
var driver = new function () {
	
	var shortDelay = 50;
	var longDelay = 1000;
	
	
	this.init = function (
			driverParams,
			engineParams,
			dispParams,
			infoParams,
			ctrlParams) {
		// jde_fc_
		cartBrow = new jde_fc_Cartoon();
		cartScal = new jde_fc_Cartoon();
		// jde_fc_
		viewDispGenBrow = new jde_fc_view.Disp();
		viewDispGenScal = new jde_fc_view.Disp();
		viewDispTemp = new jde_fc_view.Disp();
		viewDispVar = new jde_fc_view.Disp();
		// jde_fc_
		viewInfo = new jde_fc_view.Info();
		viewCtrl = new jde_fc_view.Ctrl();
		
		iterCount = driverParams.iterCount;
		logScale = driverParams.logScale;
		
		genCoordsBrow = engineParams.genCoordsBrow;
		genCoordsScal = engineParams.genCoordsScal;
		
		var handlers = {};
		handlers[viewCtrl.hKey.click] = ctrl_click;
		handlers[viewCtrl.hKey.over] = ctrl_over;
		handlers[viewCtrl.hKey.out] = ctrl_out;
		
		viewDispGenBrow.init({
			dom : { divDispId : dispParams.dom.divDispGenBrowId },
			css: { divBlockClassName : dispParams.css.divBlockClassName }
		});
		viewDispGenScal.init({
			dom : { divDispId : dispParams.dom.divDispGenScalId },
			css: { divBlockClassName : dispParams.css.divBlockClassName }
		});
		viewDispTemp.init({
			dom : { divDispId : dispParams.dom.divDispTempId },
			css: { divBlockClassName : dispParams.css.divBlockClassName }
		});
		viewDispVar.init({
			dom : { divDispId : dispParams.dom.divDispVarId },
			css: { divBlockClassName : dispParams.css.divBlockClassName }
		});
		
		viewInfo.init(infoParams);
		viewCtrl.init(ctrlParams, handlers);
		
		that._mutex = false; that._prepare();
	};
	
	this.finish = function () {
		cartBrow.reset();
		cartScal.reset();
	};
	
	
	this._mutex = true;
	
	
	/////////////////////
	/* *** Prepare *** */
	
	this._prepare = function () {
		if(that._mutex) return; that._mutex = true;
		
		cartBrow.init(genCoordsBrow);
		cartScal.init(genCoordsScal);
		cart = cartBrow;
		
		viewCtrl.disable();
		
		viewInfo.update(viewInfo.pKey.prep, viewInfo.key.prep.genB);
		
		desyncInvoke("_drawDispGenBrow()", shortDelay);
	};
	
	this._drawDispGenBrow = function () {
		if(that._mutex) return; that._mutex = true;
		
		viewDispGenBrow.drawTemp(cartBrow.generator);
		
		viewInfo.update(viewInfo.pKey.prep, viewInfo.key.prep.genS);
		
		desyncInvoke("_drawDispGenScal()", shortDelay);
	};
	
	this._drawDispGenScal = function () {
		if(that._mutex) return; that._mutex = true;
		
		viewDispGenScal.drawTemp(cartScal.generator);
		
		viewInfo.update(viewInfo.pKey.prep, viewInfo.key.prep.temp);
		
		desyncInvoke("_drawPrepDispTemp()", shortDelay);
	};
	
	this._drawPrepDispTemp = function () {
		if(that._mutex) return; that._mutex = true;
		
if(DBG_drawTemp) {
		viewDispTemp.drawTemp(cart.iterator);
}
		
		viewInfo.update(viewInfo.pKey.prep, viewInfo.key.prep.vart);
		
		desyncInvoke("_drawPrepDispVar()", shortDelay);
	};
	
	this._drawPrepDispVar = function () {
		if(that._mutex) return; that._mutex = true;
		
if(DBG_drawVar) {
		viewDispVar.drawVar(cart.iterator, logScale);
}
		
		viewInfo.update(viewInfo.pKey.prep, viewInfo.key.prep.done);
		
		desyncInvoke("_endPrepare()", longDelay);
	};
	
	this._endPrepare = function () {
		if(that._mutex) return; that._mutex = true;
		
		viewInfo.update(viewInfo.pKey.prep, viewInfo.key.prep.strt);
				
		viewCtrl.enable();
		
if(DBG_trace) {
		if(typeof(preTrace.innerText) != "undefined") { // IE patch!
			preTrace.innerText =
				"GenBrow:\n" + DBG_segInfosToString(cartBrow.generator) +
				"GenScal:\n" + DBG_segInfosToString(cartScal.generator);
		}
		else {
			preTrace.innerHTML =
				"GenBrow:\n" + DBG_segInfosToString(cartBrow.generator) +
				"GenScal:\n" + DBG_segInfosToString(cartScal.generator);
		}
		preTrace.style.display = "block";
}
	};
	
	
	
	/////////////////////
	/* *** Process *** */
	
	this._process = function (key) {
		if(that._mutex) return; that._mutex = true;
		
		viewCtrl.disable();
		
		cartBrow.reset();
		cartScal.reset();
		
		if(key == viewCtrl.key.brow)
			cart = cartBrow;
		else
			cart = cartScal;
		
		viewDispTemp.reset();
		viewDispVar.reset();
		
		viewInfo.update(viewInfo.pKey.proc, viewInfo.key.proc.iter,
			{ iter : 0, count : iterCount });
		
		desyncInvoke("_iterateCart(" +
			(iterCount) + ", " + (iterCount) + ")", shortDelay);
	};
	
	this._iterateCart = function (n, r) {
		if(that._mutex) return; that._mutex = true;
		
		if(n > r)
			cart.iterate();
		
		if(r > 0) {
			r--;
			
			viewInfo.update(viewInfo.pKey.proc, viewInfo.key.proc.iter,
				{ iter : n - r, count : n });
			
			desyncInvoke("_iterateCart(" +
				(n) + ", " + (r) + ")", shortDelay);
		}
		else {
			viewInfo.update(viewInfo.pKey.proc, viewInfo.key.proc.temp);
			
			desyncInvoke("_drawDispTemp()", shortDelay);
		}
	};
	
	this._drawDispTemp = function () {
		if(that._mutex) return; that._mutex = true;
		
if(DBG_drawTemp) {
		viewDispTemp.drawTemp(cart.iterator);
}
		
		viewInfo.update(viewInfo.pKey.proc, viewInfo.key.proc.vart);
		
		desyncInvoke("_drawDispVar()", shortDelay);
	};
	
	this._drawDispVar = function () {
		if(that._mutex) return; that._mutex = true;
		
if(DBG_drawVar) {
		viewDispVar.drawVar(cart.iterator, logScale);
}
		
		viewInfo.update(viewInfo.pKey.proc, viewInfo.key.proc.done);
		
		desyncInvoke("_endProcess()", longDelay);
	};
	
	this._endProcess = function () {
		if(that._mutex) return; that._mutex = true;
		
		var count = cart.iterCount,
			segs = cart.iterator.len() - 1,
			hres = viewDispTemp.getHres(),
			ratpc = Math.round(10000 * hres / segs) / 100;
		
		viewInfo.update(viewInfo.pKey.proc, viewInfo.key.proc.rept,
			{ count : count, segs : segs, hres : hres, ratpc : ratpc });
				
		viewCtrl.enable();
		
if(DBG_trace) {
		if(typeof(preTrace.innerText) != "undefined") { // IE patch!
			preTrace.innerText =
				"Radius: " + DBG_numToStr(cart.radius) + "\n" +
				"Generator:\n" + DBG_segInfosToString(cart.generator) +
				"Iterator:\n" + DBG_segInfosToString(cart.iterator);
		}
		else {
			preTrace.innerHTML =
				"Radius: " + DBG_numToStr(cart.radius) + "\n" +
				"Generator:\n" + DBG_segInfosToString(cart.generator) +
				"Iterator:\n" + DBG_segInfosToString(cart.iterator);
		}
		preTrace.style.display = "block";
}
	};
	
	
	
	/////////////////////
	// Private ////////////
	
	function desyncInvoke(baseInvoke, delay) {
		window.setTimeout(
			"driver._mutex = false; " +
			"driver." + baseInvoke,
			delay);
	}
	
	
	function ctrl_click(key) {
		// Keep order! {
		viewCtrl.doClick(key);
		that._mutex = false; that._process(key);
		// }
	}
	
	function ctrl_over(key) {
		viewCtrl.doOver(key);
	}
	
	function ctrl_out(key) {
		viewCtrl.doOut(key);
	}
	
	
	// jde_fc_
	var cartBrow,
		cartScal;
	// jde_fc_
	var viewDispGenBrow,
		viewDispGenScal,
		viewDispTemp,
		viewDispVar;
	// jde_fc_
	var viewInfo,
		viewCtrl;
	
	// Process parameters
	var iterCount,
		logScale;
	
	// Generator points
	var genCoordsBrow,
		genCoordsScal;
	
	var cart;
	
	var that = this;
	
}();



////////////////////////////////////////////////////////////////
// DBG	////////////////////////////////////////////////////////

var DBG_drawTemp = true,
	DBG_drawVar = true,
	DBG_trace = false,
	DBG_traceShort = true;

var preTrace = document.getElementById("PreTrace");

function DBG_numToStr(n) {
	if(isNaN(n)) return "NaN";
	return "" + Math.round(n * 1000);
}

function DBG_numToStrPad(n) {
	var s = DBG_numToStr(n);
	while(s.length < 5) s = " " + s;
	return s;
}

function DBG_segInfosToString(segInfos) {
	var sIter = "";
	for(var i = 0; i < segInfos.len(); i++) {
		var segPoint = segInfos.item(i).segPoint,
			segDelta = segInfos.item(i).segDelta;
		sIter += "(" +
			DBG_numToStrPad(segPoint.x) + " ; " +
			DBG_numToStrPad(segPoint.yL) + " / " +
			DBG_numToStrPad(segPoint.yR) + ") (" +
			DBG_numToStrPad(segDelta.dx) + " ; " +
			DBG_numToStrPad(segDelta.dyL) + " / " +
			DBG_numToStrPad(segDelta.dyR) + ")\n";
		if(DBG_traceShort && (i + 1) >= 30 && (i + 1) < segInfos.len()) {
			sIter += "...\n";
			break;
		}
	}
	return sIter;
}