MediaWiki:Cycle11.js

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// DOM objects
let st = document.querySelector("#sharetable tbody");
var vt = document.querySelector("#valuetable tbody");

// Only do the rest if the sharetable exists
if (st) {
	// This block gets the total amount of shares for each rule
	var totals = [];
	// Loop over the number of columns in the first row (should never be greater
	// than number of rows in table)
	for (let i = 1; i < st.children[0].children.length; i++) {
		let total = 0;
		for (let row of st.children) {
			// Skip over anything that doesn't look like a number (i.e. headings)
			if (!isNaN(row.children[i].innerText)) {
			  total += parseInt(row.children[i].innerText);
			}
		}
		totals.push(total);
		
		// Code to generate a hover-over indication of percentages.
		for (let row of st.children) {
			// The cell that contains the entity's name.
			let ent = row.children[0];
    		let ch = row.children[i];
			if (!isNaN(ch.innerText)) {
        		let percent = parseInt(ch.innerText) / total;
        		let majority = percent > 0.5;
        		let minority = majority ? false : percent >= 0.1;
        		
        		// But the BoB cannot be a shareholder at all.
        		if (ent.innerText.match(/Bureau/)) {
        			majority = minority = false;
        		}
        		
				ch.setAttribute(
        			"title",
        			// hacky way to round to two decimal points
        			// because the right way is worse
        			((percent * 10000) | 0) / 100 + "%" + (majority ? " (majority)" : minority ? " (minority)" : "")
    			);
        
        		if (majority) {
        			ch.style.fontWeight = "bold";
        			ch.style.textDecoration = "underline";
        		}
        		
        		if (minority) {
        			ch.style.fontWeight = "bold";
        		}
			}
		}
	}
	
	// Construct a new row to contain totals for each rule.
	let newRow = document.createElement("tr");
	let totalLabel = document.createElement("th");
	totalLabel.innerText = "Total";
	newRow.appendChild(totalLabel);
	for (let total of totals) {
		let newEle = document.createElement("th");
		newEle.innerText = total;
		newEle.style = "text-align: left;";
		newRow.appendChild(newEle);
	}
	// Append this row to the share table.
	st.appendChild(newRow);
}

if (vt) {
	let restIdx = -1;
	let lastIdx = -1;
	let currentIdx = -1;
	let rollIdx = -1;
	
	for (let j = 1; j < vt.children.length; j++) {
		let text = vt.children[j].children[0].innerText;
		
		if (/rest/i.test(text)) {
			restIdx = j;
		} else if (/last/i.test(text)) {
			lastIdx = j;
		} else if (/current/i.test(text)) {
			currentIdx = j;
		} else if (/roll/i.test(text) || /dice/i.test(text)) {
			rollIdx = j;
		}
	}
	
	var nextValues = [];
	var nextShareValues = [];
	
	if (restIdx != -1 &&
	    lastIdx != -1 &&
	    currentIdx != -1 &&
	    rollIdx != -1) {
		for (let i = 1; i < vt.children[0].children.length; i++) {
			function getFromTable(j) {
				return parseInt(vt.children[j].children[i].innerText);
			}
			let rest = getFromTable(restIdx);
			let last = getFromTable(lastIdx);
			let current = getFromTable(currentIdx);
			let roll = getFromTable(rollIdx);
			
			let val = Math.floor(
			  (roll-50) + current + (rest-current)/5 + (current-last)/4
			);
			
			nextValues.push(val);
			nextShareValues.push(Math.floor(val / totals[i - 1]));
		}
		
		vt.children[currentIdx].children[0].innerText = vt.children[currentIdx].children[0].innerText.replaceAll(/current/ig, "Last");
		vt.children[lastIdx].remove();
		
		// Construct a new row to contain totals for each rule.
		let valuesRow = document.createElement("tr");
		let shareValuesRow = document.createElement("tr");
		
		let valuesLabel = document.createElement("th");
		valuesLabel.innerText = "Current Rule Value";
		valuesRow.appendChild(valuesLabel);
		
		let shareValuesLabel = document.createElement("th");
		shareValuesLabel.innerText = "Current Share Value";
		shareValuesRow.appendChild(shareValuesLabel);
		
		for (let value of nextValues) {
			let valuesCell = document.createElement("td");
			valuesCell.innerText = value;
			valuesCell.style = "font-weight: bold;";
			valuesRow.appendChild(valuesCell);
		}
		
		for (let value of nextShareValues) {
			let shareValuesCell = document.createElement("td");
			shareValuesCell.innerText = value;
			shareValuesCell.style = "font-weight: bold;";
			shareValuesRow.appendChild(shareValuesCell);
		}
		// Append this row to the share table.
		vt.appendChild(valuesRow);
		vt.appendChild(shareValuesRow);
	}
}