Add persistent anonymous usage logging

.gitignore

@@ -40,3 +40,4 @@ yarn-error.log*
 /outputs/
 /work/
 /mard-source.html
+/data/

app/globals.css

@@ -76,7 +76,7 @@ input[type="range"] { accent-color: var(--green); }
 .zoom-control button { width: 36px; height: 36px; border: 1px solid var(--line); background: white; cursor: pointer; font-size: 20px; }
 .zoom-control input { width: 95px; }
 .zoom-control output { width: 38px; color: var(--muted); font-size: 11px; text-align: right; }
-.canvas-viewport { position: relative; width: 100%; height: clamp(520px, 68vh, 760px); min-height: 0; flex: 0 0 clamp(520px, 68vh, 760px); contain: size layout; overflow: hidden; }
+.canvas-viewport { position: relative; width: min(100%, 82vh, 1000px); aspect-ratio: 1 / 1; height: auto; min-height: 0; flex: 0 0 auto; align-self: center; contain: size layout; overflow: hidden; }
 .canvas-stage { position: absolute; inset: 0; width: auto; height: auto; overflow: scroll; display: block; padding: 36px; cursor: grab; touch-action: none; overscroll-behavior: contain; user-select: none; scrollbar-gutter: stable; }
 .canvas-stage.is-dragging { cursor: grabbing; }
 .canvas-wrap { width: max-content; line-height: 0; position: relative; margin: auto; border: 1px solid var(--ink); box-shadow: 10px 10px 0 rgba(32,39,36,.13); background: white; }
@@ -161,7 +161,7 @@ input[type="range"] { accent-color: var(--green); }
   .pattern-toolbar { align-items: flex-start; flex-direction: column; padding: 20px; }
   .zoom-control { width: 100%; }
   .zoom-control input { flex: 1; }
-  .canvas-viewport { height: max(360px, min(68vh, 620px)); min-height: 0; flex-basis: max(360px, min(68vh, 620px)); }
+  .canvas-viewport { width: min(100%, 82vh); height: auto; min-height: 0; aspect-ratio: 1 / 1; flex-basis: auto; }
   .canvas-stage { display: block; padding: 24px; }
   .canvas-wrap { margin: auto; }
   .pattern-footer { align-items: flex-start; flex-wrap: wrap; padding: 14px 18px; }

app/page.tsx

@@ -28,8 +28,17 @@ type ColorCluster = {
 
 type SamplingStrategy = "smooth" | "dominant";
 
+function logUsage(event: Record<string, unknown>) {
+  void fetch("/api/usage", {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify(event),
+    keepalive: true,
+  }).catch(() => undefined);
+}
+
 type Pixel = {
-  color: BeadColor;
+  color: BeadColor | null;
 };
 
 type HoveredPixel = {
@@ -47,9 +56,11 @@ type SavedPattern = {
   width: number;
   height: number;
   colorLimit: number;
-  codes: string[];
+  codes: Array<string | null>;
 };
 
+const TRANSPARENT_ALPHA_THRESHOLD = 128;
+
 const MARD_SERIES_NAMES: Record<string, string> = {
   A: "黄橙系", B: "绿色系", C: "蓝青系", D: "紫蓝系", E: "粉红系",
   F: "红色系", G: "肤棕系", H: "黑白灰系", M: "莫兰迪系",
@@ -102,9 +113,13 @@ function nearestColor(lab: Oklab, palette: BeadColor[]) {
 }
 
 function mergePerceptualColors(data: Uint8ClampedArray) {
-  const pixelKeys: number[] = [];
+  const pixelKeys: Array<number | null> = [];
   const histogram = new Map<number, { count: number; red: number; green: number; blue: number }>();
   for (let index = 0; index < data.length; index += 4) {
+    if (data[index + 3] < TRANSPARENT_ALPHA_THRESHOLD) {
+      pixelKeys.push(null);
+      continue;
+    }
     const red = data[index];
     const green = data[index + 1];
     const blue = data[index + 2];
@@ -187,7 +202,7 @@ function chooseDistinctMardColors(clusters: ColorCluster[], maximum: number) {
       separated.push(candidate.color);
     }
   }
-  return separated.slice(0, Math.max(1, Math.min(maximum, separated.length)));
+  return separated.slice(0, Math.max(0, Math.min(maximum, separated.length)));
 }
 
 function sampleDominantRegions(
@@ -204,8 +219,7 @@ function sampleDominantRegions(
   sample.width = width * scale;
   sample.height = height * scale;
   const ctx = sample.getContext("2d", { willReadFrequently: true })!;
-  ctx.fillStyle = "#f7f5ed";
+  ctx.clearRect(0, 0, sample.width, sample.height);
-  ctx.fillRect(0, 0, sample.width, sample.height);
   drawFittedImage(ctx, image, sample.width, sample.height, fitMode, cropZoom, cropX, cropY);
   const source = ctx.getImageData(0, 0, sample.width, sample.height).data;
   const result = new Uint8ClampedArray(width * height * 4);
@@ -215,9 +229,14 @@ function sampleDominantRegions(
   for (let row = 0; row < height; row++) {
     for (let column = 0; column < width; column++) {
       const groups: Array<{ count: number; lab: Oklab; samples: Array<{ rgb: [number, number, number]; lab: Oklab }> }> = [];
+      let transparentCount = 0;
       for (let offsetY = 0; offsetY < scale; offsetY++) {
         for (let offsetX = 0; offsetX < scale; offsetX++) {
           const sourceIndex = ((row * scale + offsetY) * sample.width + column * scale + offsetX) * 4;
+          if (source[sourceIndex + 3] < TRANSPARENT_ALPHA_THRESHOLD) {
+            transparentCount += 1;
+            continue;
+          }
           const rgb: [number, number, number] = [source[sourceIndex], source[sourceIndex + 1], source[sourceIndex + 2]];
           const lab = rgbToOklab(rgb);
           let closest: (typeof groups)[number] | undefined;
@@ -239,23 +258,28 @@ function sampleDominantRegions(
           }
         }
       }
+      const targetIndex = (row * width + column) * 4;
+      if (transparentCount >= scale * scale / 2 || groups.length === 0) {
+        result[targetIndex + 3] = 0;
+        confidence[row * width + column] = transparentCount / (scale * scale);
+        continue;
+      }
       const dominant = groups.sort((a, b) => b.count - a.count)[0];
       const representative = dominant.samples.reduce((best, current) =>
         oklabDistance(current.lab, dominant.lab) < oklabDistance(best.lab, dominant.lab) ? current : best,
       );
-      const targetIndex = (row * width + column) * 4;
       result[targetIndex] = representative.rgb[0];
       result[targetIndex + 1] = representative.rgb[1];
       result[targetIndex + 2] = representative.rgb[2];
       result[targetIndex + 3] = 255;
-      confidence[row * width + column] = dominant.count / (scale * scale);
+      confidence[row * width + column] = dominant.count / Math.max(1, scale * scale - transparentCount);
     }
   }
   return { data: result, confidence };
 }
 
 function cleanLowConfidenceIsolatedColors(
-  colors: BeadColor[],
+  colors: Array<BeadColor | null>,
   confidence: Float32Array,
   width: number,
   height: number,
@@ -267,6 +291,7 @@ function cleanLowConfidenceIsolatedColors(
     for (let column = 0; column < width; column++) {
       const index = row * width + column;
       const current = colors[index];
+      if (!current) continue;
       if (confidence[index] >= 0.625) continue;
       const chroma = Math.hypot(current.lab[1], current.lab[2]);
       const protectedDetail = current.lab[0] < 0.32 || current.lab[0] > 0.96 || chroma > 0.14;
@@ -283,6 +308,7 @@ function cleanLowConfidenceIsolatedColors(
           if (neighborRow < 0 || neighborColumn < 0 || neighborRow >= height || neighborColumn >= width) continue;
           const neighborIndex = neighborRow * width + neighborColumn;
           const neighbor = colors[neighborIndex];
+          if (!neighbor) continue;
           if (neighbor.code === current.code) sameColorNeighbors += 1;
           const entry = neighborCounts.get(neighbor.code) ?? { color: neighbor, count: 0, confidentCount: 0 };
           entry.count += 1;
@@ -370,11 +396,11 @@ function makeDemoImage() {
 export default function Home() {
   const [sourceUrl, setSourceUrl] = useState("");
   const [sourceName, setSourceName] = useState("示例：田野小屋");
-  const [requestedWidth, setRequestedWidth] = useState(32);
+  const [requestedWidth, setRequestedWidth] = useState(100);
-  const [requestedHeight, setRequestedHeight] = useState(32);
+  const [requestedHeight, setRequestedHeight] = useState(100);
-  const [gridWidth, setGridWidth] = useState(32);
+  const [gridWidth, setGridWidth] = useState(100);
-  const [gridHeight, setGridHeight] = useState(32);
+  const [gridHeight, setGridHeight] = useState(100);
-  const [colorLimit, setColorLimit] = useState(18);
+  const [colorLimit, setColorLimit] = useState(64);
   const [fitMode, setFitMode] = useState<"cover" | "contain">("cover");
   const [samplingStrategy, setSamplingStrategy] = useState<SamplingStrategy>("smooth");
   const [cropZoom, setCropZoom] = useState(1);
@@ -383,7 +409,7 @@ export default function Home() {
   const [pixels, setPixels] = useState<Pixel[]>([]);
   const [selectedCodes, setSelectedCodes] = useState<Set<string>>(new Set());
   const [onlySelected, setOnlySelected] = useState(false);
-  const [zoom, setZoom] = useState(24);
+  const [zoom, setZoom] = useState(8);
   const [showGrid, setShowGrid] = useState(true);
   const [showCodes, setShowCodes] = useState(true);
   const [query, setQuery] = useState("");
@@ -409,6 +435,7 @@ export default function Home() {
   const suppressCanvasClickRef = useRef(false);
 
   useEffect(() => {
+    logUsage({ event: "page_view" });
     const saved = localStorage.getItem("bead-pattern-history");
     if (!saved) return;
     queueMicrotask(() => {
@@ -419,6 +446,7 @@ export default function Home() {
   const convertImage = (
     image = sourceImageRef.current,
     crop = { zoom: cropZoom, x: cropX, y: cropY },
+    recordUsage = true,
   ) => {
     if (!image) return;
     const width = Math.max(8, Math.min(256, requestedWidth));
@@ -434,15 +462,14 @@ export default function Home() {
       sample.width = width;
       sample.height = height;
       const ctx = sample.getContext("2d", { willReadFrequently: true })!;
-      ctx.fillStyle = "#f7f5ed";
+      ctx.clearRect(0, 0, width, height);
-      ctx.fillRect(0, 0, width, height);
       drawFittedImage(ctx, image, width, height, fitMode, crop.zoom, crop.x, crop.y);
       data = ctx.getImageData(0, 0, width, height).data;
     }
     const { pixelKeys, clusters, binClusters } = mergePerceptualColors(data);
     const limitedPalette = chooseDistinctMardColors(clusters, Math.max(2, Math.min(colorLimit, PALETTE.length)));
     const clusterMatches = clusters.map((cluster) => nearestColor(cluster.lab, limitedPalette));
-    let matchedColors = pixelKeys.map((key) => clusterMatches[binClusters.get(key) ?? 0]);
+    let matchedColors: Array<BeadColor | null> = pixelKeys.map((key) => key === null ? null : clusterMatches[binClusters.get(key) ?? 0]);
     let cleanedCount = 0;
     if (dominantConfidence) {
       const cleaned = cleanLowConfidenceIsolatedColors(matchedColors, dominantConfidence, width, height);
@@ -457,8 +484,21 @@ export default function Home() {
     setPixels(converted);
     setSelectedCodes(new Set());
     const strategyName = samplingStrategy === "dominant" ? `区域主色 · 清理 ${cleanedCount} 个低可信孤立格` : "平滑取色";
-    const actualColorCount = new Set(matchedColors.map((color) => color.code)).size;
+    const actualColorCount = new Set(matchedColors.filter((color): color is BeadColor => color !== null).map((color) => color.code)).size;
-    setStatus(`已转换为 ${width} × ${height} · ${strategyName} · ${actualColorCount} 种差异色`);
+    const actualBeadCount = matchedColors.filter((color) => color !== null).length;
+    if (recordUsage) {
+      logUsage({
+        event: "conversion",
+        width,
+        height,
+        sampling_strategy: samplingStrategy,
+        color_limit: colorLimit,
+        actual_colors: actualColorCount,
+        bead_count: actualBeadCount,
+        transparent_cells: width * height - actualBeadCount,
+      });
+    }
+    setStatus(`已转换为 ${width} × ${height} · ${actualBeadCount} 颗拼豆 · ${strategyName} · ${actualColorCount} 种差异色`);
   };
 
   useEffect(() => {
@@ -467,7 +507,7 @@ export default function Home() {
     image.onload = () => {
       sourceImageRef.current = image;
       setSourceUrl(demo);
-      convertImage(image);
+      convertImage(image, undefined, false);
     };
     image.src = demo;
     // This intentionally runs once to create the initial example.
@@ -493,12 +533,14 @@ export default function Home() {
 
   const usedColors = useMemo(() => {
     const counts = new Map<string, number>();
-    pixels.forEach(({ color }) => counts.set(color.code, (counts.get(color.code) ?? 0) + 1));
+    pixels.forEach(({ color }) => { if (color) counts.set(color.code, (counts.get(color.code) ?? 0) + 1); });
     return PALETTE.filter((color) => counts.has(color.code))
       .map((color) => ({ ...color, count: counts.get(color.code)! }))
       .sort((a, b) => b.count - a.count);
   }, [pixels]);
 
+  const beadCount = useMemo(() => pixels.reduce((total, pixel) => total + (pixel.color ? 1 : 0), 0), [pixels]);
+
   const filteredColors = useMemo(() => {
     const key = query.trim().toLowerCase();
     return usedColors.filter((color) => !key || color.code.toLowerCase().includes(key) || color.name.includes(key) || color.hex.toLowerCase().includes(key));
@@ -541,6 +583,15 @@ export default function Home() {
     pixels.forEach(({ color }, index) => {
       const x = ruler + (index % gridWidth) * cell;
       const y = ruler + Math.floor(index / gridWidth) * cell;
+      if (!color) {
+        ctx.clearRect(x, y, cell, cell);
+        if (showGrid) {
+          ctx.strokeStyle = "rgba(32,38,36,.12)";
+          ctx.lineWidth = 0.6;
+          ctx.strokeRect(x + 0.3, y + 0.3, cell - 0.6, cell - 0.6);
+        }
+        return;
+      }
       const hasSelection = selectedCodes.size > 0;
       const isSelected = selectedCodes.has(color.code);
       if (onlySelected && hasSelection && !isSelected) {
@@ -565,6 +616,18 @@ export default function Home() {
         ctx.fillText(color.code, x + cell / 2, y + cell / 2);
       }
     });
+    if (showGrid) {
+      ctx.strokeStyle = "rgba(32,38,36,.48)";
+      ctx.lineWidth = 1.5;
+      for (let column = 5; column < gridWidth; column += 5) {
+        const x = ruler + column * cell;
+        ctx.beginPath(); ctx.moveTo(x, ruler); ctx.lineTo(x, ruler + gridHeight * cell); ctx.stroke();
+      }
+      for (let row = 5; row < gridHeight; row += 5) {
+        const y = ruler + row * cell;
+        ctx.beginPath(); ctx.moveTo(ruler, y); ctx.lineTo(ruler + gridWidth * cell, y); ctx.stroke();
+      }
+    }
   }, [pixels, gridWidth, gridHeight, zoom, selectedCodes, onlySelected, showGrid, showCodes]);
 
   const handleUpload = (event: ChangeEvent<HTMLInputElement>) => {
@@ -686,7 +749,7 @@ export default function Home() {
     const x = Math.floor((event.clientX - rect.left - ruler) / zoom);
     const y = Math.floor((event.clientY - rect.top - ruler) / zoom);
     const pixel = pixels[y * gridWidth + x];
-    if (x >= 0 && y >= 0 && x < gridWidth && y < gridHeight && pixel) toggleColor(pixel.color.code);
+    if (x >= 0 && y >= 0 && x < gridWidth && y < gridHeight && pixel?.color) toggleColor(pixel.color.code);
   };
 
   const handleCanvasMove = (event: React.MouseEvent<HTMLCanvasElement>) => {
@@ -701,7 +764,7 @@ export default function Home() {
     const column = Math.floor((event.clientX - rect.left - ruler) / zoom);
     const row = Math.floor((event.clientY - rect.top - ruler) / zoom);
     const pixel = pixels[row * gridWidth + column];
-    if (column < 0 || row < 0 || column >= gridWidth || row >= gridHeight || !pixel) {
+    if (column < 0 || row < 0 || column >= gridWidth || row >= gridHeight || !pixel?.color) {
       setHoveredPixel(null);
       return;
     }
@@ -722,7 +785,7 @@ export default function Home() {
       width: gridWidth,
       height: gridHeight,
       colorLimit,
-      codes: pixels.map((pixel) => pixel.color.code),
+      codes: pixels.map((pixel) => pixel.color?.code ?? null),
     };
     persistHistory([entry, ...history].slice(0, 30));
     setStatus("图纸已保存到本机历史记录");
@@ -730,7 +793,7 @@ export default function Home() {
 
   const restorePattern = (entry: SavedPattern) => {
     const colorMap = new Map(PALETTE.map((color) => [color.code, color]));
-    setPixels(entry.codes.map((code) => ({ color: colorMap.get(code) ?? PALETTE[0] })));
+    setPixels(entry.codes.map((code) => ({ color: code === null ? null : colorMap.get(code) ?? PALETTE[0] })));
     setGridWidth(entry.width);
     setGridHeight(entry.height);
     setRequestedWidth(entry.width);
@@ -868,7 +931,7 @@ export default function Home() {
         </section>
 
         <aside className="color-panel">
-          <div className="panel-heading"><span>03</span><div><h2>分色查看</h2><p>{usedColors.length} 种颜色 · {pixels.length} 颗</p></div></div>
+          <div className="panel-heading"><span>03</span><div><h2>分色查看</h2><p>{usedColors.length} 种颜色 · {beadCount} 颗</p></div></div>
           <div className="search-box"><span>⌕</span><input value={query} onChange={(e) => setQuery(e.target.value)} placeholder="输入 A6、MARD A 或 #FEAC4C" /></div>
           <div className="selection-tools">
             <label className="switch-row"><input type="checkbox" checked={onlySelected} onChange={(e) => setOnlySelected(e.target.checked)} /><span className="switch" /><span>只显示选中颜色</span></label>
@@ -894,7 +957,7 @@ export default function Home() {
         </div>
         {filteredHistory.length ? <div className="history-grid">{filteredHistory.map((entry) => {
           const colorCounts = new Map<string, number>();
-          entry.codes.forEach((code) => colorCounts.set(code, (colorCounts.get(code) ?? 0) + 1));
+          entry.codes.forEach((code) => { if (code) colorCounts.set(code, (colorCounts.get(code) ?? 0) + 1); });
           const topCodes = [...colorCounts.entries()].sort((a, b) => b[1] - a[1]).slice(0, 6);
           return <article className="history-card" key={entry.id}>
             <div className="history-swatches">{topCodes.map(([code, count]) => <i key={code} style={{ backgroundColor: PALETTE.find((color) => color.code === code)?.hex, flexGrow: count }} />)}</div>

deploy/server.mjs

@@ -1,10 +1,14 @@
-import { createReadStream, existsSync, statSync } from "node:fs";
+import { appendFile, createReadStream, existsSync, mkdirSync, statSync } from "node:fs";
+import { createHash } from "node:crypto";
 import { createServer } from "node:http";
 import { extname, join, normalize } from "node:path";
 
 const packagedRoot = join(process.cwd(), "public");
 const root = existsSync(join(packagedRoot, "index.html")) ? packagedRoot : join(process.cwd(), "out");
 const port = Number(process.env.APP_PORT || 3200);
+const dataDirectory = process.env.DATA_DIR || join(process.cwd(), "data");
+const usageLogPath = join(dataDirectory, "usage.jsonl");
+mkdirSync(dataDirectory, { recursive: true });
 const mimeTypes = {
   ".css": "text/css; charset=utf-8",
   ".html": "text/html; charset=utf-8",
@@ -17,8 +21,59 @@ const mimeTypes = {
   ".webp": "image/webp",
 };
 
+function sendJson(response, status, value) {
+  response.writeHead(status, { "Content-Type": "application/json; charset=utf-8", "Cache-Control": "no-store" });
+  response.end(JSON.stringify(value));
+}
+
+function writeUsageLog(request, response) {
+  let body = "";
+  request.setEncoding("utf8");
+  request.on("data", (chunk) => {
+    body += chunk;
+    if (body.length > 16_384) request.destroy();
+  });
+  request.on("end", async () => {
+    try {
+      const input = JSON.parse(body || "{}");
+      if (!['page_view', 'conversion'].includes(input.event)) {
+        sendJson(response, 400, { error: "Invalid event" });
+        return;
+      }
+      const entry = {
+        timestamp: new Date().toISOString(),
+        event: input.event,
+        client_hash: request.headers["x-forwarded-for"] || request.socket.remoteAddress
+          ? createHash("sha256").update(String(request.headers["x-forwarded-for"] || request.socket.remoteAddress)).digest("hex").slice(0, 16)
+          : undefined,
+        ...(input.event === "conversion" ? {
+          width: Math.max(8, Math.min(256, Number(input.width) || 0)),
+          height: Math.max(8, Math.min(256, Number(input.height) || 0)),
+          sampling_strategy: input.sampling_strategy === "dominant" ? "dominant" : "smooth",
+          color_limit: Math.max(2, Math.min(64, Number(input.color_limit) || 0)),
+          actual_colors: Math.max(0, Math.min(221, Number(input.actual_colors) || 0)),
+          bead_count: Math.max(0, Math.min(65_536, Number(input.bead_count) || 0)),
+          transparent_cells: Math.max(0, Math.min(65_536, Number(input.transparent_cells) || 0)),
+        } : {}),
+      };
+      await appendFile(usageLogPath, `${JSON.stringify(entry)}\n`, "utf8");
+      sendJson(response, 202, { ok: true });
+    } catch {
+      sendJson(response, 400, { error: "Invalid request" });
+    }
+  });
+}
+
 createServer((request, response) => {
   const pathname = decodeURIComponent(new URL(request.url || "/", "http://localhost").pathname);
+  if (pathname === "/api/usage" && request.method === "POST") {
+    writeUsageLog(request, response);
+    return;
+  }
+  if (pathname.startsWith("/api/")) {
+    sendJson(response, 404, { error: "Not found" });
+    return;
+  }
   const relativePath = normalize(pathname).replace(/^([/\\])+/, "");
   let filePath = join(root, relativePath || "index.html");
 

docker-compose.yml

@@ -4,3 +4,5 @@ services:
     restart: unless-stopped
     ports:
       - "${APP_PORT:-3200}:3200"
+    volumes:
+      - ./data:/app/data

out/.vite/manifest.json

@@ -11,7 +11,7 @@
     "name": "rolldown-runtime"
   },
   "app/page.tsx": {
-    "file": "_next/static/chunks/page-DuaIrYp1.js",
+    "file": "_next/static/chunks/page-OnKjbyiO.js",
     "name": "page",
     "src": "app/page.tsx",
     "isDynamicEntry": true,
@@ -21,7 +21,7 @@
     ]
   },
   "node_modules/vinext/dist/shims/layout-segment-context.js": {
-    "file": "_next/static/chunks/layout-segment-context-D3q3zeiS.js",
+    "file": "_next/static/chunks/layout-segment-context-a2puOOKn.js",
     "name": "layout-segment-context",
     "src": "node_modules/vinext/dist/shims/layout-segment-context.js",
     "isDynamicEntry": true,
@@ -32,7 +32,7 @@
     ]
   },
   "virtual:vinext-app-browser-entry": {
-    "file": "_next/static/chunks/index-CYDm4YY8.js",
+    "file": "_next/static/chunks/index-DJm5cxJ6.js",
     "name": "index",
     "src": "virtual:vinext-app-browser-entry",
     "isEntry": true,

out/404.html

@@ -1,2 +1,2 @@
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out/_next/static/chunks/layout-segment-context-a2puOOKn.js

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