const appName = 'Poster Loom';

const { addToast } = useToast();

const canvasRef = useRef(null);

// Poster State

const [layout, setLayout] = useState('bauhaus');

const [primaryColor, setPrimaryColor] = useState(COLORS[0]);

const [accentColor, setAccentColor] = useState(COLORS[1]);

const [headerText, setHeaderText] = useState('FEZCODEX');

const [subHeaderText, setSubHeaderText] = useState('ARCHITECTURAL_THOUGHTS');

const [sidebarText, setSidebarText] = useState('DATA_NODE_049');

const [footerText, setFooterText] = useState(

'SYSTEM_INTEGRITY_VERIFIED // BUILD_2025',

);

const [headerSize, setHeaderSize] = useState(120);

const [subHeaderSize, setSubHeaderSize] = useState(24);

const [sidebarSize, setSidebarSize] = useState(18);

const [footerSize, setFooterSize] = useState(14);

const [noiseOpacity, setNoiseOpacity] = useState(0.1);

const [gridOpacity, setGridOpacity] = useState(0.2);

const [seed, setSeed] = useState(Math.random());

const drawPoster = useCallback(

(ctx, width, height) => {

const scale = width / 1000;

const padding = 60 * scale;

// 1. Background

ctx.fillStyle = primaryColor.hex;

ctx.fillRect(0, 0, width, height);

// 2. Grid Layer

if (gridOpacity > 0) {

ctx.strokeStyle = accentColor.hex;

ctx.globalAlpha = gridOpacity;

ctx.lineWidth = 1 * scale;

const gridSize = 50 * scale;

ctx.beginPath();

for (let x = 0; x <= width; x += gridSize) {

ctx.moveTo(x, 0);

ctx.lineTo(x, height);

}

for (let y = 0; y <= height; y += gridSize) {

ctx.moveTo(0, y);

ctx.lineTo(width, y);

}

ctx.stroke();

ctx.globalAlpha = 1.0;

}

// 3. Generative Shapes (based on seed)

const rng = (s) => {

let v = s * 12345.678;

return () => {

v = (v * 987.654) % 1;

return v;

};

};

const getRand = rng(seed);

ctx.save();

ctx.strokeStyle = accentColor.hex;

ctx.lineWidth = 2 * scale;

// Draw layout-specific shapes

if (layout === 'bauhaus') {

for (let i = 0; i < 5; i++) {

ctx.strokeRect(

getRand() * width,

getRand() * height,

200 * scale * getRand(),

200 * scale * getRand(),

);

ctx.beginPath();

ctx.arc(

getRand() * width,

getRand() * height,

100 * scale * getRand(),

0,

Math.PI * 2,

);

ctx.stroke();

}

} else if (layout === 'technical') {

ctx.beginPath();

ctx.moveTo(width / 2, padding);

ctx.lineTo(width / 2, height - padding);

ctx.stroke();

for (let i = 0; i < 10; i++) {

const y = padding + getRand() * (height - padding * 2);

ctx.strokeRect(width / 2 - 20 * scale, y, 40 * scale, 2 * scale);

}

} else if (layout === 'minimal') {

// The Void: Central Crosshair

const cx = width / 2;

const cy = height / 2;

const size = 100 * scale;

ctx.beginPath();

ctx.moveTo(cx - size, cy);

ctx.lineTo(cx + size, cy);

ctx.moveTo(cx, cy - size);

ctx.lineTo(cx, cy + size);

ctx.stroke();

ctx.strokeRect(cx - size / 4, cy - size / 4, size / 2, size / 2);

} else if (layout === 'column') {

// The Column: Vertical Structural Element

const colX = padding * 3;

ctx.beginPath();

ctx.moveTo(colX, padding);

ctx.lineTo(colX, height - padding);

ctx.stroke();

for (let i = 0; i < 20; i++) {

const y = padding + (i * (height - padding * 2)) / 20;

ctx.strokeRect(colX - 10 * scale, y, 20 * scale, 1 * scale);

}

} else if (layout === 'diagonal') {

// Diagonal Scan: 45-degree rotated lines

ctx.save();

ctx.globalAlpha = gridOpacity;

ctx.lineWidth = 2 * scale;

const step = 40 * scale;

for (let i = -height; i < width + height; i += step) {

ctx.beginPath();

ctx.moveTo(i, 0);

ctx.lineTo(i + height, height);

ctx.stroke();

}

ctx.restore();

}

ctx.restore();

// 4. Typography

ctx.fillStyle = accentColor.hex;

ctx.textBaseline = 'top';

// Header

ctx.font = `bold ${headerSize * scale}px "JetBrains Mono", monospace`;

ctx.textAlign = 'left';

ctx.fillText(headerText.toUpperCase(), padding, padding);

// Subheader

ctx.font = `bold ${subHeaderSize * scale}px "JetBrains Mono", monospace`;

ctx.fillText(

subHeaderText.toUpperCase(),

padding,

padding + (headerSize + 20) * scale,

);

// Sidebar (Vertical)

ctx.save();

ctx.translate(width - padding, height / 2);

ctx.rotate(Math.PI / 2);

ctx.textAlign = 'center';

ctx.font = `bold ${sidebarSize * scale}px "JetBrains Mono", monospace`;

ctx.fillText(sidebarText.toUpperCase(), 0, 0);

ctx.restore();

// Footer

ctx.font = `bold ${footerSize * scale}px "JetBrains Mono", monospace`;

ctx.textAlign = 'left';

ctx.fillText(

footerText.toUpperCase(),

padding,

height - padding - footerSize * scale,

);

// 5. Border

ctx.strokeStyle = accentColor.hex;

ctx.lineWidth = 10 * scale;

ctx.strokeRect(

padding / 2,

padding / 2,

width - padding,

height - padding,

);

// 6. Noise Layer

if (noiseOpacity > 0) {

const noiseSize = 256;

const noiseCanvas = document.createElement('canvas');

noiseCanvas.width = noiseSize;

noiseCanvas.height = noiseSize;

const nCtx = noiseCanvas.getContext('2d');

const nData = nCtx.createImageData(noiseSize, noiseSize);

for (let i = 0; i < nData.data.length; i += 4) {

const val = Math.random() * 255;

nData.data[i] = nData.data[i + 1] = nData.data[i + 2] = val;

nData.data[i + 3] = 255;

}

nCtx.putImageData(nData, 0, 0);

ctx.save();

ctx.globalAlpha = noiseOpacity;

ctx.globalCompositeOperation = 'overlay';

const pattern = ctx.createPattern(noiseCanvas, 'repeat');

ctx.fillStyle = pattern;

ctx.fillRect(0, 0, width, height);

ctx.restore();

}

},

[

layout,

primaryColor,

accentColor,

headerText,

subHeaderText,

sidebarText,

footerText,

headerSize,

subHeaderSize,

sidebarSize,

footerSize,

noiseOpacity,

gridOpacity,

seed,

],

);

useEffect(() => {

const canvas = canvasRef.current;

if (!canvas) return;

const ctx = canvas.getContext('2d');

const dpr = window.devicePixelRatio || 1;

const rect = canvas.getBoundingClientRect();

canvas.width = rect.width * dpr;

canvas.height = rect.height * dpr;

ctx.scale(dpr, dpr);

drawPoster(ctx, rect.width, rect.height);

}, [drawPoster]);

const handleDownload = () => {

const canvas = document.createElement('canvas');

const ctx = canvas.getContext('2d');

const W = 2160; // 4K vertical-ish scale

const H = 3240;

canvas.width = W;

canvas.height = H;

drawPoster(ctx, W, H);

const link = document.createElement('a');

link.download = `poster-loom-${Date.now()}.png`;

link.href = canvas.toDataURL('image/png', 1.0);

link.click();

addToast({

title: 'EXPORT_SUCCESS',

message: 'High-fidelity poster sequence generated.',

});

};

return (

<div className="min-h-screen bg-[#050505] text-white selection:bg-emerald-500/30 font-sans">

<Seo

title="Poster Loom | Fezcodex"

description="Construct high-impact brutalist posters with generative shapes and technical typography."

keywords={[

'Fezcodex',

'poster generator',

'brutalist design',

'generative art',

'typography tool',

]}

/>

<div className="mx-auto max-w-7xl px-6 py-24 md:px-12">

<header className="mb-24">

<Link

to="/apps"

className="group mb-12 inline-flex items-center gap-2 text-xs font-mono text-gray-500 hover:text-white transition-colors uppercase tracking-[0.3em]"

>

<ArrowLeft weight="bold" />

<span>Applications</span>

</Link>

<div className="flex flex-col md:flex-row md:items-end justify-between gap-12">

<div className="space-y-4">

<h1 className="text-6xl md:text-8xl font-black tracking-tighter text-white leading-none uppercase">

{appName}

</h1>

<p className="text-xl text-gray-400 max-w-2xl font-light leading-relaxed">

Poster construct protocol. Map character strings and geometric

entities onto a structured grid to generate high-impact visual

sequences.

</p>

</div>

<button

onClick={handleDownload}

className="group relative inline-flex items-center gap-4 px-10 py-6 bg-white text-black hover:bg-emerald-400 transition-all duration-300 font-mono uppercase tracking-widest text-sm font-black rounded-sm shrink-0"

>

<DownloadSimple weight="bold" size={24} />

<span>Generate Master</span>

</button>

</div>

</header>

<div className="grid grid-cols-1 lg:grid-cols-12 gap-12">

{/* LEFT: Controls */}

<div className="lg:col-span-4 space-y-8">

{/* Layout & Colors */}

<div className="border border-white/10 bg-white/[0.02] p-8 rounded-sm space-y-10">

<div className="flex justify-between items-center border-b border-white/5 pb-6">

<h3 className="font-mono text-[10px] font-bold text-emerald-500 uppercase tracking-widest flex items-center gap-2">

<Selection weight="fill" />

Structure_Protocols

</h3>

<button

onClick={() => setSeed(Math.random())}

className="p-1.5 text-gray-500 hover:text-emerald-500 transition-colors"

title="Regenerate Layout Entities"

>

<ArrowsClockwise weight="bold" size={14} />

</button>

</div>

<div className="space-y-6">

<div className="grid grid-cols-2 gap-2">

{LAYOUTS.map((l) => (

<button

key={l.id}

onClick={() => setLayout(l.id)}

className={`py-3 text-[9px] font-mono uppercase tracking-widest border transition-all ${layout === l.id ? 'bg-white text-black border-white' : 'border-white/5 text-gray-600 hover:border-white/20'}`}

>

{l.label}

</button>

))}

</div>

<div className="space-y-4">

<label className="block font-mono text-[9px] uppercase text-gray-600">

Base_Chromatic

</label>

<div className="flex gap-2">

{COLORS.map((c) => (

<button

key={c.name}

onClick={() => setPrimaryColor(c)}

className={`w-8 h-8 rounded-full border-2 ${primaryColor.hex === c.hex ? 'border-emerald-500 scale-110' : 'border-transparent'}`}

style={{ backgroundColor: c.hex }}

title={c.name}

/>

))}

</div>

</div>

<div className="space-y-4">

<label className="block font-mono text-[9px] uppercase text-gray-600">

Accent_Chromatic

</label>

<div className="flex gap-2">

{COLORS.map((c) => (

<button

key={c.name}

onClick={() => setAccentColor(c)}

className={`w-8 h-8 rounded-full border-2 ${accentColor.hex === c.hex ? 'border-emerald-500 scale-110' : 'border-transparent'}`}

style={{ backgroundColor: c.hex }}

title={c.name}

/>

))}

</div>

</div>

</div>

</div>

{/* Typography Inputs */}

<div className="border border-white/10 bg-white/[0.02] p-8 rounded-sm space-y-10">

<h3 className="font-mono text-[10px] font-bold text-emerald-500 uppercase tracking-widest flex items-center gap-2 border-b border-white/5 pb-6">

<TextAa weight="fill" />

String_Mapping

</h3>

<div className="space-y-10">

{/* Header Config */}

<div className="space-y-4">

<div className="flex justify-between items-center">

<label className="block font-mono text-[9px] uppercase text-gray-600">

Primary_Header

</label>

<div className="flex items-center gap-3">

<span className="text-[9px] font-mono text-gray-700">

{headerSize}PX

</span>

<input

type="range"

min="20"

max="250"

value={headerSize}

onChange={(e) =>

setHeaderSize(parseInt(e.target.value))

}

className="w-20 accent-white h-1 bg-gray-800 rounded-lg appearance-none cursor-pointer"

/>

</div>

</div>

<input

type="text"

value={headerText}

onChange={(e) => setHeaderText(e.target.value)}

className="w-full bg-black/40 border border-white/10 p-3 font-mono text-xs uppercase tracking-widest focus:border-emerald-500 outline-none transition-all"

/>

</div>

{/* SubHeader Config */}

<div className="space-y-4">

<div className="flex justify-between items-center">

<label className="block font-mono text-[9px] uppercase text-gray-600">

Secondary_Header

</label>

<div className="flex items-center gap-3">

<span className="text-[9px] font-mono text-gray-700">

{subHeaderSize}PX

</span>

<input

type="range"

min="8"

max="80"

value={subHeaderSize}

onChange={(e) =>

setSubHeaderSize(parseInt(e.target.value))

}

className="w-20 accent-white h-1 bg-gray-800 rounded-lg appearance-none cursor-pointer"

/>

</div>

</div>

<input

type="text"

value={subHeaderText}

onChange={(e) => setSubHeaderText(e.target.value)}

className="w-full bg-black/40 border border-white/10 p-3 font-mono text-xs uppercase tracking-widest focus:border-emerald-500 outline-none transition-all"

/>

</div>

{/* Sidebar Config */}

<div className="space-y-4">

<div className="flex justify-between items-center">

<label className="block font-mono text-[9px] uppercase text-gray-600">

Lateral_Registry

</label>

<div className="flex items-center gap-3">

<span className="text-[9px] font-mono text-gray-700">

{sidebarSize}PX

</span>

<input

type="range"

min="8"

max="60"

value={sidebarSize}

onChange={(e) =>

setSidebarSize(parseInt(e.target.value))

}

className="w-20 accent-white h-1 bg-gray-800 rounded-lg appearance-none cursor-pointer"

/>

</div>

</div>

<input

type="text"

value={sidebarText}

onChange={(e) => setSidebarText(e.target.value)}

className="w-full bg-black/40 border border-white/10 p-3 font-mono text-xs uppercase tracking-widest focus:border-emerald-500 outline-none transition-all"

/>

</div>

{/* Footer Config */}

<div className="space-y-4">

<div className="flex justify-between items-center">

<label className="block font-mono text-[9px] uppercase text-gray-600">

Bottom_Registry

</label>

<div className="flex items-center gap-3">

<span className="text-[9px] font-mono text-gray-700">

{footerSize}PX

</span>

<input

type="range"

min="8"

max="60"

value={footerSize}

onChange={(e) =>

setFooterSize(parseInt(e.target.value))

}

className="w-20 accent-white h-1 bg-gray-800 rounded-lg appearance-none cursor-pointer"

/>

</div>

</div>

<input

type="text"

value={footerText}

onChange={(e) => setFooterText(e.target.value)}

className="w-full bg-black/40 border border-white/10 p-3 font-mono text-xs uppercase tracking-widest focus:border-emerald-500 outline-none transition-all"

/>

</div>

</div>

</div>

{/* Visual Filters */}

<div className="border border-white/10 bg-white/[0.02] p-8 rounded-sm space-y-10">

<h3 className="font-mono text-[10px] font-bold text-emerald-500 uppercase tracking-widest flex items-center gap-2 border-b border-white/5 pb-6">

<PaintBrush weight="fill" />

Diffusion_Filters

</h3>

<div className="space-y-8">

<div className="space-y-4">

<div className="flex justify-between font-mono text-[9px] uppercase text-gray-600">

<span>Noise_Entropy</span>

<span>{Math.round(noiseOpacity * 100)}%</span>

</div>

<input

type="range"

min="0"

max="0.5"

step="0.01"

value={noiseOpacity}

onChange={(e) =>

setNoiseOpacity(parseFloat(e.target.value))

}

className="w-full accent-white h-1 bg-gray-800 rounded-lg appearance-none cursor-pointer"

/>

</div>

<div className="space-y-4">

<div className="flex justify-between font-mono text-[9px] uppercase text-gray-600">

<span>Grid_Structural</span>

<span>{Math.round(gridOpacity * 100)}%</span>

</div>

<input

type="range"

min="0"

max="0.8"

step="0.01"

value={gridOpacity}

onChange={(e) => setGridOpacity(parseFloat(e.target.value))}

className="w-full accent-white h-1 bg-gray-800 rounded-lg appearance-none cursor-pointer"

/>

</div>

<button

onClick={() => setSeed(Math.random())}

className="w-full py-4 border border-white/10 text-gray-500 hover:text-white hover:bg-white/5 transition-all font-mono text-[10px] uppercase tracking-widest flex items-center justify-center gap-2"

>

<ArrowsClockwise weight="bold" /> Mutate Entities

</button>

</div>

</div>

</div>

{/* RIGHT: Preview */}

<div className="lg:col-span-8">

<div className="relative border border-white/10 bg-[#0a0a0a] rounded-sm overflow-hidden flex items-center justify-center shadow-2xl group min-h-[800px]">

<canvas

ref={canvasRef}

className="w-full max-w-[500px] aspect-[2/3] object-contain shadow-[0_0_100px_rgba(0,0,0,0.5)]"

style={{ imageRendering: 'pixelated' }}

/>

<div className="absolute top-8 right-8 z-30 opacity-0 group-hover:opacity-100 transition-opacity duration-500">

<button

onClick={() => {

setHeaderText('FEZCODEX');

setSubHeaderText('NULL');

setSeed(Math.random());

}}

className="flex items-center gap-2 px-4 py-2 bg-black/60 backdrop-blur-md border border-white/10 text-[10px] font-mono uppercase tracking-widest text-red-400 hover:bg-red-500 hover:text-black transition-all"

>

<Trash weight="bold" /> Reset Template

</button>

</div>

</div>

<div className="mt-12 p-8 border border-white/10 bg-white/[0.01] rounded-sm flex items-start gap-6">

<Info size={32} className="text-gray-700 shrink-0 mt-1" />

<p className="text-sm font-mono uppercase tracking-[0.2em] leading-relaxed text-gray-500 max-w-4xl">

Poster construct utilizes localized Canvas protocols. Final

master generation executes at 2160x3240 resolution to ensure

systemic clarity across all physical and digital displays.

</p>

</div>

</div>

</div>

<footer className="mt-32 pt-12 border-t border-white/10 flex flex-col md:flex-row justify-between items-center gap-6 text-gray-600 font-mono text-[10px] uppercase tracking-[0.3em]">

<span>Fezcodex_Graphic_Construct_v0.6.1</span>

<span className="text-gray-800">CONSTRUCT_STATUS // OPTIMAL</span>

</footer>

</div>

</div>

);