'use strict';
// Local visual diagnostic. The private project/export remain outside version control.
const fs = require('fs'), path = require('path');
const root = path.resolve(__dirname, '..');
const source = process.argv[2];
if (!source) throw Error('Usage: node tests/build-x10-comparison.js x10.skel [x10.atlas] [x10.png] [output.html]');
const assets = require('../js/spine-utils').discoverAssets(source);
const atlasPath = process.argv[3] || assets.atlasPath;
const texturePath = process.argv[4] || assets.texturePaths['x10.png'];
const output = process.argv[5] || '/tmp/spine-x10-comparison.html';
const baseline = process.env.SPINE_COMPARE_BASELINE === '1';
const script = s => '<script>' + s.replace(/<\/script/gi, '<\\/script') + '</script>';
let html = '<!doctype html><meta charset="utf-8"><style>body{margin:0;background:#555;color:white;font:16px sans-serif}canvas{width:486.5px;height:278.5px}section{display:inline-block}pre{white-space:pre-wrap}</style><pre id="result">RUNNING</pre>';
html += script('var module={exports:{}};const modules={};function require(n){return modules[n]}');
for (const name of ['spine-webgl-rasterizer', 'spine-canvas-clipping'])
 html += script('module={exports:{}};\n' + (baseline ? require('child_process').execFileSync('git',['show','HEAD:js/'+name+'.js'],{cwd:root,encoding:'utf8'}) : fs.readFileSync(path.join(root, 'js', name+'.js'), 'utf8')) + `\nmodules['./${name}.js']=module.exports;`);
html += script(fs.readFileSync(path.join(root, 'lib/4.2/spine-canvas.js'), 'utf8'));
html += script(`(async()=>{try{
const raw=Uint8Array.from(atob('${fs.readFileSync(texturePath).toString('base64')}'),c=>c.charCodeAt(0));
const image=new Image();image.src='data:image/png;base64,${fs.readFileSync(texturePath).toString('base64')}';await image.decode();
if(modules['./spine-webgl-rasterizer.js'].prepareTexture) await modules['./spine-webgl-rasterizer.js'].prepareTexture(image,new Blob([raw],{type:'image/png'}));
const atlas=new spine.TextureAtlas(${JSON.stringify(fs.readFileSync(atlasPath,'utf8'))});for(const page of atlas.pages)page.setTexture(new spine.CanvasTexture(image));
const data=new spine.SkeletonBinary(new spine.AtlasAttachmentLoader(atlas)).readSkeletonData(Uint8Array.from(atob('${fs.readFileSync(source).toString('base64')}'),c=>c.charCodeAt(0)));
const reference=new Image();reference.src='data:image/png;base64,${fs.readFileSync(path.join(__dirname,'对比测试.png')).toString('base64')}';await reference.decode();
const reports=[];
function panel(name){const e=document.createElement('section');e.innerHTML='<div>'+name+'</div>';const c=document.createElement('canvas');c.width=973;c.height=557;e.appendChild(c);document.body.appendChild(e);return c;}
const rc=panel('Spine editor export'),rx=rc.getContext('2d');rx.fillStyle='#555';rx.fillRect(0,0,973,557);rx.drawImage(reference,0,0);const expected=rx.getImageData(0,0,973,557).data;
function redBounds(pixels){let x0=973,y0=557,x1=0,y1=0;for(let y=0;y<557;y++){const xs=[];for(let x=0;x<973;x++){const i=(y*973+x)*4;if(pixels[i]>100&&pixels[i]>pixels[i+1]*2&&pixels[i]>pixels[i+2]*2)xs.push(x)}if(xs.length>24){x0=Math.min(x0,...xs);y0=Math.min(y0,y);x1=Math.max(x1,...xs);y1=Math.max(y1,y)}}return [x0,y0,x1,y1];}
const rb=redBounds(expected);
for(const frame of [7,8]){
const sk=new spine.Skeleton(data),state=new spine.AnimationState(new spine.AnimationStateData(data));state.setAnimation(0,'word_fly',false);state.update(frame/30);state.apply(sk);sk.updateWorldTransform(spine.Physics.update);
const off=new spine.Vector2(),size=new spine.Vector2();sk.getBounds(off,size,[]);
const c=panel('Plugin frame '+frame),ctx=c.getContext('2d');ctx.fillStyle='#555';ctx.fillRect(0,0,973,557);
// Editor exports tight bounds plus its export padding. Record bounds for registration.
const scale=Math.min(973/size.x,557/size.y);ctx.translate(973/2,557/2);ctx.scale(scale,-scale);ctx.translate(-off.x-size.x/2,-off.y-size.y/2);
const renderer=modules['./spine-canvas-clipping.js'].createRenderer(spine,ctx,'4.2');renderer.premultipliedAlpha=true;renderer.draw(sk);
const ab=redBounds(ctx.getImageData(0,0,973,557).data),ratio=(rb[2]-rb[0])/(ab[2]-ab[0]);
const transform=ctx.getTransform();ctx.setTransform(1,0,0,1,0,0);ctx.fillStyle='#555';ctx.fillRect(0,0,973,557);
ctx.translate((rb[0]+rb[2])/2-ratio*(ab[0]+ab[2])/2,(rb[1]+rb[3])/2-ratio*(ab[1]+ab[3])/2);ctx.scale(ratio,ratio);ctx.transform(transform.a,transform.b,transform.c,transform.d,transform.e,transform.f);renderer.draw(sk);renderer.dispose();
const actual=ctx.getImageData(0,0,973,557).data;let sum=0;for(let i=0;i<actual.length;i++)if(i%4!==3)sum+=Math.abs(actual[i]-expected[i]);
reports.push({frame,scale:scale*ratio,mae:sum/(973*557*3)});
}
document.getElementById('result').textContent=JSON.stringify(reports);
}catch(e){document.getElementById('result').textContent='FAIL '+e.stack}})();`);
fs.writeFileSync(output,html);console.log(output);