// dev tool: scan for calls to members/functions that are never defined
'use strict';
const fs = require('fs');
const files = fs.readdirSync('js').filter(f => f.endsWith('.js'));
let all = '';
for (const f of files) all += fs.readFileSync('js/' + f, 'utf8') + '\n';

const defs = new Set();
for (const m of all.matchAll(/(?:^|\n)[ \t]*(?:async\s+)?([A-Za-z_$][\w$]*)\s*\([^()]*\)\s*\{/g)) defs.add(m[1]);
for (const m of all.matchAll(/\bfunction\s+([A-Za-z_$][\w$]*)/g)) defs.add(m[1]);
for (const m of all.matchAll(/(?:const|let|var)\s+([A-Za-z_$][\w$]*)\s*=/g)) defs.add(m[1]);

const allow = new Set([
  'push','pop','shift','unshift','splice','slice','concat','join','map','filter','forEach',
  'reduce','find','findIndex','some','every','includes','indexOf','sort','fill','keys',
  'values','entries','from','isArray','assign','create','freeze','getOwnPropertyNames',
  'setItem','getItem','removeItem','clear','log','warn','error','now','floor','ceil','round',
  'abs','min','max','sqrt','pow','sin','cos','tan','atan','atan2','random','hypot','sign','exp',
  'add','has','delete','get','set',
  'translate','rotate','scale','save','restore','beginPath','closePath','moveTo','lineTo','arc',
  'arcTo','quadraticCurveTo','bezierCurveTo','rect','fill','stroke','clip','fillText','strokeText',
  'measureText','drawImage','createLinearGradient','createRadialGradient','createPattern','fillRect',
  'strokeRect','clearRect','setTransform','resetTransform','ellipse',
  'play','pause','resume','connect','start','stop','setValueAtTime','linearRampToValueAtTime',
  'exponentialRampToValueAtTime','createGain','createOscillator','createBuffer','createBufferSource',
  'createBiquadFilter',
  'addEventListener','removeEventListener','preventDefault','stopPropagation','appendChild',
  'removeChild','remove','querySelector','querySelectorAll','getElementById','createElement',
  'toggle','contains','setAttribute','getAttribute','insertBefore','closest','matches',
  'test','exec','replace','split','trim','toLowerCase','toUpperCase','charAt','charCodeAt',
  'padStart','padEnd','repeat','match','matchAll','toString','toFixed','stringify','parse',
  'requestAnimationFrame','setTimeout','setInterval','clearTimeout','clearInterval','fetch',
  'then','catch','finally','bind','call','apply'
]);

let bad = 0;
for (const m of all.matchAll(/\b(UI|Sys|R|Snd|Store|GAME)\.([A-Za-z_$][\w$]*)\s*\(/g)) {
  const meth = m[2];
  if (!allow.has(meth) && !defs.has(meth)) { console.log('MISSING:', m[1] + '.' + meth); bad++; }
}
console.log(bad === 0 ? 'No missing member calls OK' : bad + ' issues');

for (const f of ['render.js', 'systems.js', 'ui.js', 'audio.js', 'save.js']) {
  const src = fs.readFileSync('js/' + f, 'utf8');
  for (const m of src.matchAll(/this\.(_?[A-Za-z_$][\w$]*)\s*\(/g)) {
    if (!defs.has(m[1])) console.log('MISSING this.' + m[1] + ' in ' + f);
  }
}
console.log('this-method scan done');