Psico/eraser-40.html at main · ivansouza/Psico · GitHub

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<!DOCTYPE html>
<html lang="pt-BR">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <title>Magic Eraser NB v40</title>

    <!-- Dependências React Estáveis -->
    <script crossorigin src="https://unpkg.com/react@18/umd/react.production.min.js"></script>
    <script crossorigin src="https://unpkg.com/react-dom@18/umd/react-dom.production.min.js"></script>
    <script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
    <script src="https://cdn.tailwindcss.com"></script>

    <style>
        /* CSS Reset */
        * { box-sizing: border-box; touch-action: none; }
        body, html {
            margin: 0; padding: 0;
            width: 100%; height: 100%;
            background-color: #000;
            color: white;
            overflow: hidden;
            font-family: sans-serif;
        }
        #root { width: 100%; height: 100%; display: flex; flex-direction: column; }

        /* Canvas Container */
        .canvas-container {
            flex: 1;
            position: relative;
            overflow: hidden;
            background: #111;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* Camadas */
        canvas {
            position: absolute;
            top: 0; left: 0;
            image-rendering: pixelated; /* Nitidez */
        }

        .ui-layer { pointer-events: none; z-index: 50; }
        .no-scrollbar::-webkit-scrollbar { display: none; }

        /* Loading */
        .loader {
            border: 4px solid rgba(255, 255, 255, 0.1);
            border-left-color: #8b5cf6;
            border-radius: 50%;
            width: 40px; height: 40px;
            animation: spin 1s linear infinite;
        }
        @keyframes spin { to { transform: rotate(360deg); } }
    </style>
</head>
<body>
    <div id="root"></div>

    <script type="text/babel">
        const { useState, useRef, useEffect } = React;
        // A chave é injetada automaticamente neste ambiente
        const apiKey = "";

        // --- ÍCONES ---
        const Icon = ({ d, c="w-6 h-6" }) => <svg viewBox="0 0 24 24" className={c} fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"><path d={d} /></svg>;

        const Icons = {
            Upload: <Icon d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4M17 8l-5-5-5 5M12 3v12"/>,
            Save: <Icon d="M19 21H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11l5 5v11a2 2 0 0 1-2 2zM17 21v-8H7v8M7 3v5h8"/>,
            Brush: <Icon d="M18 13.5c0 2.5-2.2 4.5-5 4.5s-5-2-5-4.5S10.2 9 13 9s5 2 5 4.5ZM13 9V3M10 5.3 13 3l3 2.3"/>,
            AI: <Icon d="m12 3-1.912 5.813a2 2 0 0 1-1.275 1.275L3 12l5.813 1.912a2 2 0 0 1 1.275 1.275L12 21l1.912-5.813a2 2 0 0 1 1.275-1.275L21 12l-5.813-1.912a2 2 0 0 1-1.275-1.275L12 3Z"/>,
            Auto: <Icon d="M6 3h12l4 6-10 13L2 9ZM11 3 8 9l4 13 4-13-3-6"/>,
            Eraser: <Icon d="m7 21-4.3-4.3c-1-1-1-2.5 0-3.4l9.6-9.6c1-1 2.5-1 3.4 0l5.6 5.6c1 1 1 2.5 0 3.4L13 21M22 21H7M5 11l9 9"/>,
            Clone: <Icon d="M5 22h14M19.27 13.73A2.665 2.665 0 0 0 17.5 13h-11A2.665 2.665 0 0 0 4.73 13.73L2.5 16h19l-2.23-2.27ZM10 2h4M12 2v11"/>,
            Move: <Icon d="M5 9l-2 3 2 3M9 5l3-2 3 2M19 9l2 3-2 3M9 19l3 2 3-2M2 12h20M12 2v20"/>,
            Undo: <Icon d="M3 7v6h6M21 17a9 9 0 0 0-9-9 9 0 0 0-6 2.3L3 13"/>,
            Redo: <Icon d="M21 7v6h-6M3 17a9 9 0 0 1 9-9 9 9 0 0 1 6 2.3L21 13"/>
        };

        function App() {
            // --- ESTADOS ---
            const [img, setImg] = useState(null);
            const [mode, setMode] = useState('view');
            const [size, setSize] = useState(40);
            const [msg, setMsg] = useState("");
            const [busy, setBusy] = useState(false);

            // Zoom/Pan
            const [transform, setTransform] = useState({ x: 0, y: 0, k: 1 });

            // Histórico
            const [history, setHistory] = useState([]);
            const [hIdx, setHIdx] = useState(-1);

            // Refs
            const canvasRef = useRef(null);
            const overlayRef = useRef(null);
            const uiCanvasRef = useRef(null);
            const fileRef = useRef(null);
            const containerRef = useRef(null);

            // Refs Lógicos
            const state = useRef({
                panning: false, pinching: false, painting: false,
                lastX: 0, lastY: 0, startDist: 0, startK: 1, startX: 0, startY: 0,
                cloneSrc: null, hasMask: false
            });

            // --- CARREGAMENTO (Igual v27/31) ---
            const handleFile = (e) => {
                const f = e.target.files[0];
                if(!f) return;
                const reader = new FileReader();
                reader.onload = (ev) => {
                    const i = new Image();
                    i.onload = () => {
                        let w=i.width, h=i.height;
                        const max=1200;
                        if(w>max||h>max) { const r=Math.min(max/w, max/h); w=Math.floor(w*r); h=Math.floor(h*r); }

                        const c = document.createElement('canvas'); c.width=w; c.height=h;
                        c.getContext('2d').drawImage(i,0,0,w,h);

                        const finalImg = new Image();
                        finalImg.onload = () => {
                            setImg(finalImg);
                            setHistory([c.toDataURL()]);
                            setHIdx(0);

                            if(containerRef.current) {
                                const cw = containerRef.current.clientWidth;
                                const ch = containerRef.current.clientHeight;
                                const k = Math.min(cw/w, ch/h)*0.95;
                                setTransform({ x: (cw-w*k)/2, y: (ch-h*k)/2, k });
                            }
                            state.current.hasMask = false;
                            state.current.cloneSrc = null;
                            setMode('view');

                            // Resetar Canvases
                            [canvasRef, overlayRef, uiCanvasRef].forEach(ref => {
                                if(ref.current) {
                                    ref.current.width = w; ref.current.height = h;
                                    ref.current.getContext('2d').clearRect(0,0,w,h);
                                }
                            });
                            if(canvasRef.current) canvasRef.current.getContext('2d').drawImage(finalImg,0,0);
                        };
                        finalImg.src = c.toDataURL();
                    };
                    i.src = ev.target.result;
                };
                reader.readAsDataURL(f);
            };

            const save = () => {
                if(!canvasRef.current) return;
                const a = document.createElement('a');
                a.download = `magic-v40-${Date.now()}.jpg`;
                a.href = canvasRef.current.toDataURL('image/jpeg', 0.95);
                a.click();
            };

            // --- RENDERIZAÇÃO ---
            useEffect(() => {
                if(img && canvasRef.current) {
                    const ctx = canvasRef.current.getContext('2d');
                    if(canvasRef.current.width !== img.width) {
                         canvasRef.current.width = img.width; canvasRef.current.height = img.height;
                         if(overlayRef.current) { overlayRef.current.width = img.width; overlayRef.current.height = img.height; }
                         if(uiCanvasRef.current) { uiCanvasRef.current.width = img.width; uiCanvasRef.current.height = img.height; }
                    }
                    ctx.clearRect(0, 0, img.width, img.height);
                    ctx.drawImage(img, 0, 0);
                }
            }, [img]);

            // --- GESTOS ---
            const getPt = (e) => {
                const r = containerRef.current.getBoundingClientRect();
                const x = e.touches ? e.touches[0].clientX : e.clientX;
                const y = e.touches ? e.touches[0].clientY : e.clientY;
                return {
                    x: (x - r.left - transform.x) / transform.k,
                    y: (y - r.top - transform.y) / transform.k
                };
            };

            const drawUI = (pt) => {
                const ctx = uiCanvasRef.current.getContext('2d');
                const w = uiCanvasRef.current.width; const h = uiCanvasRef.current.height;
                ctx.clearRect(0,0,w,h);

                // Cursor Pincel (Branco)
                if (pt && (mode === 'mask' || mode === 'erase' || mode === 'clone')) {
                    ctx.beginPath();
                    ctx.strokeStyle = 'rgba(255, 255, 255, 0.8)';
                    ctx.lineWidth = 1 / transform.k;
                    ctx.arc(pt.x, pt.y, size/2, 0, Math.PI*2);
                    ctx.stroke();
                }

                // Marcador Clone (Verde)
                const src = state.current.cloneSrc;
                if(src && mode === 'clone') {
                    const s = 10 / transform.k * 2;
                    ctx.strokeStyle = '#0f0'; ctx.lineWidth = 2 / transform.k * 2;
                    ctx.beginPath(); ctx.arc(src.x, src.y, s, 0, 6.28); ctx.stroke();
                    ctx.beginPath(); ctx.moveTo(src.x-s*1.5, src.y); ctx.lineTo(src.x+s*1.5, src.y); ctx.stroke();
                    ctx.beginPath(); ctx.moveTo(src.x, src.y-s*1.5); ctx.lineTo(src.x, src.y+s*1.5); ctx.stroke();
                }
            };

            const down = (e) => {
                if(!img) return;
                if(e.touches && e.touches.length === 2) {
                    state.current.pinching = true;
                    state.current.startDist = Math.hypot(e.touches[0].clientX-e.touches[1].clientX, e.touches[0].clientY-e.touches[1].clientY);
                    state.current.startK = transform.k; return;
                }

                const pt = getPt(e);
                if(mode === 'view') {
                    state.current.panning = true;
                    const cx = e.touches ? e.touches[0].clientX : e.clientX;
                    const cy = e.touches ? e.touches[0].clientY : e.clientY;
                    state.current.startX = cx - transform.x;
                    state.current.startY = cy - transform.y;
                } else if (mode === 'clone' && !state.current.cloneSrc) {
                    state.current.cloneSrc = pt;
                    setMsg("Origem definida!"); setTimeout(()=>setMsg(""), 1500);
                    drawUI(pt);
                } else {
                    state.current.painting = true;
                    state.current.lastX = pt.x; state.current.lastY = pt.y;
                    paint(pt, pt);
                    if(mode === 'mask') state.current.hasMask = true;
                    drawUI(pt);
                }
            };

            const move = (e) => {
                if(!img) return;
                e.preventDefault();
                if(state.current.pinching && e.touches.length === 2) {
                    const d = Math.hypot(e.touches[0].clientX-e.touches[1].clientX, e.touches[0].clientY-e.touches[1].clientY);
                    const k = Math.max(0.1, Math.min(5, state.current.startK * (d/state.current.startDist)));
                    setTransform(t => ({...t, k})); return;
                }
                if(state.current.panning) {
                    const cx = e.touches ? e.touches[0].clientX : e.clientX;
                    const cy = e.touches ? e.touches[0].clientY : e.clientY;
                    setTransform(t => ({...t, x: cx - state.current.startX, y: cy - state.current.startY}));
                } else if(state.current.painting) {
                    const pt = getPt(e);
                    paint({x:state.current.lastX, y:state.current.lastY}, pt);
                    state.current.lastX = pt.x; state.current.lastY = pt.y;
                    drawUI(pt);
                }
            };

            const up = () => {
                state.current.panning = false; state.current.pinching = false;
                if(state.current.painting) {
                    state.current.painting = false;
                    if(mode === 'erase') applyErase();
                    if(mode === 'clone') applyClone();
                }
            };

            const paint = (start, end) => {
                const ctx = overlayRef.current.getContext('2d');
                ctx.lineCap = 'round'; ctx.lineJoin = 'round'; ctx.lineWidth = size;
                // Verde Sólido (#00FF00) para IA
                if(mode==='mask') ctx.strokeStyle = '#00FF00';
                else if(mode==='erase') ctx.strokeStyle = '#FF0066';
                else if(mode==='clone') ctx.strokeStyle = '#6666FF';
                ctx.beginPath(); ctx.moveTo(start.x, start.y); ctx.lineTo(end.x, end.y); ctx.stroke();
            };

            const updateImage = (newData) => {
                const c = document.createElement('canvas'); c.width=newData.width; c.height=newData.height;
                c.getContext('2d').putImageData(newData,0,0);
                const ni = new Image();
                ni.onload = () => {
                    setImg(ni);
                    const nh = history.slice(0, hIdx+1); nh.push(c.toDataURL());
                    setHistory(nh); setHIdx(nh.length-1);
                    overlayRef.current.getContext('2d').clearRect(0,0,newData.width,newData.height);
                    setBusy(false);
                    if(state.current.hasMask && mode !== 'mask') state.current.hasMask = false;
                };
                ni.src = c.toDataURL();
            };

            // --- EFEITOS LOCAIS ---
            const applyErase = async () => {
                setBusy(true); await new Promise(r=>setTimeout(r,10));
                const w=img.width; const h=img.height;
                const ctx = canvasRef.current.getContext('2d');
                const mCtx = overlayRef.current.getContext('2d');
                const d = ctx.getImageData(0,0,w,h);
                const m = mCtx.getImageData(0,0,w,h).data;
                const res = new Uint8ClampedArray(d.data);
                for(let i=0; i<m.length; i+=4) { if(m[i+3]>0) { const k = i - w*4*5; if(k>=0 && m[k+3]===0) { res[i]=res[k]; res[i+1]=res[k+1]; res[i+2]=res[k+2]; res[i+3]=255; } } }
                updateImage(new ImageData(res,w,h));
            };

            const applyClone = async () => {
                if(!state.current.cloneSrc) return;
                setBusy(true); await new Promise(r=>setTimeout(r,10));
                const w=img.width; const h=img.height;
                const ctx = canvasRef.current.getContext('2d');
                const mCtx = overlayRef.current.getContext('2d');
                const d = ctx.getImageData(0,0,w,h);
                const m = mCtx.getImageData(0,0,w,h).data;
                const res = new Uint8ClampedArray(d.data);
                const sx = Math.floor(state.current.cloneSrc.x);
                const sy = Math.floor(state.current.cloneSrc.y);
                const sIdx = (sy*w+sx)*4;
                for(let i=0; i<m.length; i+=4) { if(m[i+3]>0 && sIdx<res.length) { res[i]=d.data[sIdx]; res[i+1]=d.data[sIdx+1]; res[i+2]=d.data[sIdx+2]; res[i+3]=255; } }
                updateImage(new ImageData(res,w,h));
            };

            // --- IA GOOGLE ---
            const ai = async () => {
                setBusy(true); setMsg("Enviando para Google...");

                try {
                    const w=img.width; const h=img.height;
                    const c = document.createElement('canvas'); c.width=w; c.height=h;
                    const ctx = c.getContext('2d');

                    // 1. Desenha imagem base
                    ctx.drawImage(img,0,0);

                    // 2. Se não tem máscara manual, criar AUTOMATICAMENTE no canto
                    if(!state.current.hasMask) {
                        setMsg("Auto Detectando...");
                        const rad = Math.max(25, Math.min(w,h)*0.05);
                        const cx = w - Math.max(15, w*0.03) - (rad*0.8);
                        const cy = h - Math.max(15, h*0.03) - (rad*0.8);

                        // Desenhar círculo verde no canvas temporário (não na tela)
                        const mC = document.createElement('canvas'); mC.width=w; mC.height=h;
                        const mCtx = mC.getContext('2d');
                        mCtx.fillStyle = '#00FF00';
                        mCtx.beginPath(); mCtx.arc(cx, cy, rad, 0, Math.PI*2); mCtx.fill();
                        ctx.drawImage(mC, 0, 0);
                    } else {
                        // Usar máscara manual do usuário
                        const mData = overlayRef.current.getContext('2d').getImageData(0,0,w,h);
                        const mC = document.createElement('canvas'); mC.width=w; mC.height=h;
                        const mCtx = mC.getContext('2d');
                        mCtx.putImageData(mData,0,0);
                        mCtx.globalCompositeOperation='source-in'; mCtx.fillStyle='#00FF00'; mCtx.fillRect(0,0,w,h);
                        ctx.drawImage(mC,0,0);
                    }

                    const b64 = c.toDataURL('image/png').split(',')[1];
                    const url = `https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash-image-preview:generateContent?key=${apiKey}`;
                    const body = { contents: [{ parts: [{ text: "Inpainting task. Replace green #00FF00 mask with background." }, { inlineData: { mimeType: "image/png", data: b64 } }] }] };

                    const req = await fetch(url, { method:'POST', headers:{'Content-Type':'application/json'}, body:JSON.stringify(body)});
                    const json = await req.json();
                    const newB64 = json.candidates?.[0]?.content?.parts?.find(p=>p.inlineData)?.inlineData?.data;

                    if(newB64) {
                        const ni = new Image();
                        ni.onload = () => {
                            // FIX DE TAMANHO: Esticar imagem recebida
                            const temp = document.createElement('canvas'); temp.width=w; temp.height=h;
                            temp.getContext('2d').drawImage(ni, 0, 0, w, h);
                            updateImage(temp.getContext('2d').getImageData(0,0,w,h));
                            setMode('view'); setMsg("Sucesso!"); setTimeout(()=>setMsg(""),2000);
                        };
                        ni.src = `data:image/png;base64,${newB64}`;
                    } else throw new Error("Falha");
                } catch(e) { console.error(e); setMsg("Erro IA"); setBusy(false); }
            };

            const undo = () => {
                if(hIdx>0) {
                    const src = history[hIdx-1];
                    const i = new Image(); i.onload=()=>setImg(i); i.src=src;
                    setHIdx(hIdx-1);
                }
            };

            return (
                <div className="flex flex-col h-full w-full bg-black text-white">
                    {/* Header */}
                    <div className="flex justify-between items-center p-3 bg-gray-900 border-b border-gray-800 z-50 shadow-lg h-14 shrink-0">
                        <div className="font-bold text-purple-400 flex items-center gap-2">{Icons.Auto} NB v40</div>
                        <div className="flex gap-3">
                            <button onClick={()=>fileRef.current.click()} className="bg-gray-700 p-2 rounded-full">{Icons.Upload}</button>
                            <button onClick={save} disabled={!img} className="bg-white text-black px-4 py-1 rounded-full font-bold text-sm disabled:opacity-50">Salvar</button>
                        </div>
                    </div>

                    {/* Canvas */}
                    <div ref={containerRef} className="canvas-container"
                         onMouseDown={down} onMouseMove={move} onMouseUp={up} onMouseLeave={up}
                         onTouchStart={down} onTouchMove={move} onTouchEnd={up}>

                        {!img && <div className="flex flex-col items-center text-gray-500">{Icons.Upload}<p className="mt-2">Carregar Imagem</p></div>}

                        <div className="transform-layer" style={{
                            transform: `translate(${transform.x}px, ${transform.y}px) scale(${transform.k})`,
                            width: img ? img.width : 0, height: img ? img.height : 0,
                            display: img ? 'block' : 'none',
                            position: 'absolute', top: 0, left: 0, transformOrigin: '0 0'
                        }}>
                            <canvas ref={canvasRef} />
                            <canvas ref={overlayRef} className="paint-layer" />
                            <canvas ref={uiCanvasRef} className="ui-canvas" />
                        </div>

                        {msg && <div className="absolute top-4 bg-black/80 px-4 py-2 rounded-full text-sm z-50 border border-white/20">{msg}</div>}
                        {busy && <div className="absolute inset-0 bg-black/50 flex items-center justify-center z-50"><div className="loader"></div></div>}
                    </div>

                    {/* Toolbar */}
                    {img && (
                        <div className="bg-gray-900 p-2 pb-6 z-50 border-t border-gray-800 flex flex-col gap-2">
                            {mode!=='view' && (
                                <div className="flex items-center gap-2 px-2">
                                    <span className="text-xs w-6">{size}</span>
                                    <input type="range" min="5" max="150" value={size} onChange={e=>setSize(Number(e.target.value))} className="flex-1 h-2 bg-gray-700 rounded-lg accent-purple-500"/>
                                </div>
                            )}
                            <div className="flex justify-between items-center px-1 gap-2 overflow-x-auto no-scrollbar">
                                <div className="flex bg-gray-800/50 p-1 rounded gap-1 border border-white/10">
                                    <button onClick={()=>setMode('mask')} className={`p-2 rounded w-10 flex flex-col items-center ${mode==='mask'?'text-green-400':'text-gray-400'}`}>{Icons.Brush}<span className="text-[8px]">Pincel</span></button>
                                    <button onClick={ai} className="p-2 rounded w-10 flex flex-col items-center text-white bg-gradient-to-b from-purple-600 to-indigo-600">{Icons.AI}<span className="text-[8px]">Auto/IA</span></button>
                                </div>
                                <div className="w-px h-8 bg-gray-700"></div>
                                <button onClick={()=>setMode('erase')} className={`p-2 rounded w-10 flex flex-col items-center ${mode==='erase'?'text-pink-500':'text-gray-400'}`}>{Icons.Eraser}<span className="text-[8px]">Apagar</span></button>
                                <button onClick={()=>{setMode('clone'); state.current.cloneSrc=null; drawUI();}} className={`p-2 rounded w-10 flex flex-col items-center ${mode==='clone'?'text-blue-400':'text-gray-400'}`}>{Icons.Clone}<span className="text-[8px]">Clone</span></button>
                                <button onClick={()=>setMode('view')} className={`p-2 rounded w-10 flex flex-col items-center ${mode==='view'?'text-white':'text-gray-400'}`}>{Icons.Move}<span className="text-[8px]">Mover</span></button>
                                <button onClick={undo} disabled={hIdx<=0} className="p-2 text-gray-400 disabled:opacity-30">{Icons.Undo}</button>
                            </div>
                        </div>
                    )}
                    <input type="file" ref={fileRef} onChange={handleFile} className="hidden" accept="image/*" />
                </div>
            );
        }

        const root = ReactDOM.createRoot(document.getElementById('root'));
        root.render(<App />);
    </script>
</body>
</html>