/* Error Checking for game entry.
 * 
 * We check each of the following. If any is not true, we
 * notify the user.
 * Note: Not all checks are implemented.
 * TODO Implement remaining checks.
	1. Total score % 5 == 0
	2. [ Total individual TUs heard > 0; <= 4 * TUs heard team
Individual TUs heard <= TUS heard team ]
	3. [ Total TUs answered <= TUs heard team ]
	4. [ Total negs <= TUs heard team ]
	5. Bonus conversion <= 30, >= 0
	6. Individual Buzzes <= individual TUs heard
	7. Team buzzes <= Team TUs heard
*/
function errorMsg(msg) {
	return confirm("An error was detected. Click 'OK' to proceed anyway, or 'Cancel' to correct it.\n" + msg);
}

function checkTUH(arr, teamTUH, teamName) {
	var tot = 0;
	for (var i = 0; i < arr.length; i++) {
		if (arr[i].value != "") {
			if (parseInt(arr[i].value) > teamTUH) {
				return errorMsg ("Player " + (i + 1) + " on team " + teamName + " heard more tossups than were read.");
			}
			tot += parseInt(arr[i].value);
		}
	}
	
	if (tot <= 0) {
		return errorMsg ("No tossups heard for " + teamName + ".");
	}
	if (tot > teamTUH * 4) {
		return errorMsg ("Too many tossups heard for " + teamName + ".");
	}
	return true;
}

function checkTotalAnswered(t1pows, t1tus, t2pows, t2tus, tusHeard) {
	var tot = 0;
	for (var i = 0; i < t1pows.length; i++) {
		if (t1pows[i].value != "") {
			tot += parseInt(t1pows[i].value);
		}
	}
	for (var i = 0; i < t1tus.length; i++) {
		if (t1tus[i].value != "") {
			tot += parseInt(t1tus[i].value);
		}
	}
	for (var i = 0; i < t2pows.length; i++) {
		if (t2pows[i].value != "") {
			tot += parseInt(t2pows[i].value);
		}
	}
	for (var i = 0; i < t2tus.length; i++) {
		if (t2tus[i].value != "") {
			tot += parseInt(t2tus[i].value);
		}
	}
	
	if (tot > tusHeard) {
		return errorMsg ("More tossups were answered than read.");
	}
	return true;
}

function checkTotalNegs(t1negs, t2negs, tusHeard) {
	var tot = 0;
	for (var i = 0; i < t1negs.length; i++) {
		if (t1negs[i].value != "") {
			tot += parseInt(t1negs[i].value);
		}
	}
	for (var i = 0; i < t2negs.length; i++) {
		if (t2negs[i].value != "") {
			tot += parseInt(t2negs[i].value);
		}
	}

	if (tot > tusHeard) {
		return errorMsg ("More negs than tossups read.");
	}
	return true;
}

function checkScoreDivisor(score, team) {
	if (score % 5 != 0) {
		return errorMsg("Score for team " + team + " is not a multiple of 5.");
	}
	return true;
}

function checkInput(team1, team2) {
	var t1score = parseInt(document.getElementsByName("team1_score")[0].value);
	if (!checkScoreDivisor(t1score, team1)) return false;
	var t2score = parseInt(document.getElementsByName("team2_score")[0].value);
	if (!checkScoreDivisor(t2score, team2)) return false;		
	
	var tusHeard = parseInt(document.getElementsByName("total_tuh")[0].value);
	var t1tuh = document.getElementsByName("team1_tuh[]");
	var t2tuh = document.getElementsByName("team2_tuh[]");
	if (!checkTUH(t1tuh, tusHeard, team1)) return false;
	if (!checkTUH(t2tuh, tusHeard, team2)) return false;
	
	var t1pows = document.getElementsByName("team1_pow[]");
	var t1tus = document.getElementsByName("team1_tu[]");
	var t2pows = document.getElementsByName("team2_pow[]");
	var t2tus = document.getElementsByName("team2_tu[]");
	if (!checkTotalAnswered(t1pows, t1tus, t2pows, t2tus, tusHeard)) return false;
	
	var t1negs = document.getElementsByName("team1_neg[]");
	var t2negs = document.getElementsByName("team2_neg[]");
	if (!checkTotalNegs(t1negs, t2negs, tusHeard)) return false;
	
	return true;
}


// On load actions
$(document).ready(function() 
    {
		// Sorter for sorted tables
        $(".tablesorter").tablesorter({widgets: ['zebra']});
        
        // Hiding and showing of the overtime box
        $("#overtime-content").hide();
        $("fieldset#overtime legend").click(function() {
        	$("#overtime-content").toggle("fast");
        })
    } 
);

/** Smart actions for game entry **/
$(document).ready(function() 
	{	
		// Keyboard focus
		$("#team1_score").focus();
		$("#team1_picker").focus();
		
		// TUH update
		$("#total_tuh").change(function() {
			// Change only if not to the default
			if($(this).val() != $("#default_tuh").val()) {
				// Pull the player TUH fields
				$(".player_tuh").each(function() {
					// Set the ones that had been set to old default
					if($(this).val() == $("#default_tuh").val()) {
						$(this).val($("#total_tuh").val());
					}
				});
			}
		});
	}
);