MediaWiki:Gadget-fa-bid-calculator.js
Note: After publishing, you may have to bypass your browser's cache to see the changes.
- Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
- Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
- Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5.
/**
* 1TC RealGM — free agency bid calculator.
* Implements the points system on [[NBA:Free Agency]]. If the two ever disagree,
* the wiki page is the rule and this script is the bug.
*/
( function () {
'use strict';
var MIN_OFFER = 500000,
MIN_RAISE = 200000,
MAX_YEARS = 4,
MAX_YEARS_35 = 2,
YEAR_POINTS = 1.5;
function money( n ) {
return '$' + n.toLocaleString( 'en-US' );
}
function points( years, salary ) {
return ( years * YEAR_POINTS ) + ( salary / 1000000 );
}
/** Round a points total for display without trailing float noise. */
function pts( n ) {
return Math.round( n * 100 ) / 100;
}
/** A monospace post block with a copy button. */
function postBlock( text ) {
var wrap = document.createElement( 'div' );
wrap.className = 'tc-calc-postwrap';
var pre = document.createElement( 'div' );
pre.className = 'tc-calc-post';
pre.textContent = text;
wrap.appendChild( pre );
var btn = document.createElement( 'button' );
btn.className = 'tc-calc-copy';
btn.type = 'button';
btn.textContent = 'Copy';
btn.addEventListener( 'click', function () {
function done( ok ) {
btn.textContent = ok ? 'Copied' : 'Press \u2318C / Ctrl+C';
setTimeout( function () { btn.textContent = 'Copy'; }, 2000 );
}
if ( navigator.clipboard && navigator.clipboard.writeText ) {
navigator.clipboard.writeText( text ).then( function () { done( true ); },
function () { selectFallback( pre ); done( false ); } );
} else {
selectFallback( pre );
done( false );
}
} );
wrap.appendChild( btn );
return wrap;
}
/** Clipboard API unavailable or refused: select the text so the reader can copy it. */
function selectFallback( el ) {
var range = document.createRange();
range.selectNodeContents( el );
var sel = window.getSelection();
sel.removeAllRanges();
sel.addRange( range );
}
function build( container ) {
var form = document.createElement( 'div' );
form.className = 'tc-calc';
function row( labelText, el ) {
var r = document.createElement( 'div' );
r.className = 'tc-calc-row';
var l = document.createElement( 'label' );
l.textContent = labelText;
r.appendChild( l );
r.appendChild( el );
form.appendChild( r );
return r;
}
var years = document.createElement( 'select' );
var salary = document.createElement( 'input' );
salary.type = 'number';
salary.step = String( MIN_RAISE );
salary.min = String( MIN_OFFER );
salary.value = String( MIN_OFFER );
var age35 = document.createElement( 'input' );
age35.type = 'checkbox';
var beat = document.createElement( 'input' );
beat.type = 'number';
beat.step = '0.1';
beat.placeholder = 'e.g. 8.5';
var name = document.createElement( 'input' );
name.type = 'text';
name.placeholder = 'Caldwell Jones';
name.style.width = '14em';
var team = document.createElement( 'input' );
team.type = 'text';
team.placeholder = 'Suns';
team.style.width = '14em';
function fillYears() {
var max = age35.checked ? MAX_YEARS_35 : MAX_YEARS,
prev = Number( years.value ) || 1;
years.textContent = '';
for ( var y = 1; y <= max; y++ ) {
var o = document.createElement( 'option' );
o.value = String( y );
o.textContent = y + ( y === 1 ? ' year' : ' years' );
years.appendChild( o );
}
years.value = String( Math.min( prev, max ) );
}
fillYears();
row( 'Years', years );
row( 'Salary per year', salary );
var ageRow = row( 'Player is 35 or over', age35 );
ageRow.querySelector( 'label' ).style.fontWeight = 'normal';
row( 'Bid to beat (optional)', beat );
row( 'Your team (optional)', team );
row( 'Player (optional)', name );
var out = document.createElement( 'div' );
out.className = 'tc-calc-out';
form.appendChild( out );
function render() {
var y = Number( years.value ),
s = Number( salary.value ),
max = age35.checked ? MAX_YEARS_35 : MAX_YEARS;
out.textContent = '';
if ( !s || isNaN( s ) ) {
var empty = document.createElement( 'p' );
empty.className = 'tc-calc-note';
empty.textContent = 'Enter a salary.';
out.appendChild( empty );
return;
}
var total = points( y, s );
var big = document.createElement( 'div' );
big.className = 'tc-calc-big';
big.textContent = pts( total ) + ' points';
out.appendChild( big );
var steps = document.createElement( 'ol' );
steps.className = 'tc-calc-steps';
[
y + ' × 1.5 = ' + pts( y * YEAR_POINTS ) + ' points for years',
money( s ) + ' = ' + pts( s / 1000000 ) + ' points for money',
'Total ' + pts( total )
].forEach( function ( t ) {
var li = document.createElement( 'li' );
li.textContent = t;
steps.appendChild( li );
} );
out.appendChild( steps );
// --- validity ---
var problems = [];
if ( s < MIN_OFFER ) {
problems.push( 'Below the ' + money( MIN_OFFER ) + ' minimum offer.' );
}
if ( y > max ) {
problems.push( 'Maximum length is ' + max + ' years' +
( age35.checked ? ' for a player 35 or over' : '' ) + '.' );
}
if ( problems.length ) {
var warn = document.createElement( 'div' );
warn.className = 'tc-calc-warn';
warn.textContent = problems.join( ' ' );
out.appendChild( warn );
}
// --- what it takes to beat a standing bid ---
var target = Number( beat.value );
if ( target && !isNaN( target ) ) {
var box = document.createElement( 'div' );
box.className = 'tc-calc-note';
if ( total > target ) {
box.textContent = 'This already beats ' + pts( target ) + ' points.';
} else {
// cheapest money-only raise, in $200,000 steps
var needed = ( target - total ) * 1000000,
raises = Math.max( 1, Math.ceil( needed / MIN_RAISE ) ),
newSalary = s + ( raises * MIN_RAISE );
while ( points( y, newSalary ) <= target ) {
newSalary += MIN_RAISE;
}
var lines = [
'To beat ' + pts( target ) + ' points at ' + y +
( y === 1 ? ' year' : ' years' ) + ': ' + money( newSalary ) +
' (' + pts( points( y, newSalary ) ) + ' points).'
];
if ( y < max ) {
var extraYear = points( y + 1, s );
lines.push( 'Or add a year: ' + ( y + 1 ) + ' years at ' + money( s ) +
' = ' + pts( extraYear ) + ' points' +
( extraYear > target ? '.' : ' — still short.' ) );
}
box.textContent = lines.join( ' ' );
}
out.appendChild( box );
}
// --- ready-to-paste post ---
// "Suns offer Caldwell Jones 2 Years @ $500,000 = 3.5 Points".
// Whatever of team/player is missing simply drops out.
var tm = team.value.trim(),
pl = name.value.trim(),
prefix = tm && pl ? tm + ' offer ' + pl : ( pl || ( tm ? tm + ' offer' : '' ) ),
offer = y + ( y === 1 ? ' Year' : ' Years' ) + ' @ ' + money( s ) +
' = ' + pts( total ) + ' Points';
out.appendChild( postBlock( prefix ? prefix + ' ' + offer : offer ) );
var note = document.createElement( 'div' );
note.className = 'tc-calc-note';
note.textContent = 'Check this against your cap space before posting — a bid over your ' +
'space costs 40% of the contract for a year, and you do not get the player.';
out.appendChild( note );
}
age35.addEventListener( 'change', function () { fillYears(); render(); } );
[ years, salary, beat, name, team ].forEach( function ( el ) {
el.addEventListener( 'input', render );
el.addEventListener( 'change', render );
} );
container.appendChild( form );
render();
}
mw.hook( 'wikipage.content' ).add( function () {
var el = document.getElementById( 'tc-fa-bid-calculator' );
if ( el && !el.dataset.tcBuilt ) {
el.dataset.tcBuilt = '1';
build( el );
}
} );
}() );