fix: map preview scale

src/pages/Route/route-preview/webgl-prototype/WebGLRouteMapPrototype.tsx

@@ -216,6 +216,12 @@ const rotateVertices = (
 const DRAG_THRESHOLD_PX = 4;
 const ICON_SIZE_MIN = 1;
 const ICON_SIZE_MAX = 300;
+const DEBUG_WEBGL_ROUTE_MAP = true;
+
+const debugWebglLog = (...args: unknown[]) => {
+  if (!DEBUG_WEBGL_ROUTE_MAP) return;
+  console.log("[WebGLRouteMapPrototype]", ...args);
+};
 
 type StationDragState = {
   stationId: number;
@@ -735,7 +741,16 @@ export const WebGLRouteMapPrototype = observer(() => {
       next: Transform,
       options?: { immediate?: boolean; skipClamp?: boolean },
     ) => {
+      const prevTransform = transformRef.current;
       const adjusted = options?.skipClamp ? next : clampTransformScale(next);
+      debugWebglLog("updateTransform", {
+        immediate: Boolean(options?.immediate),
+        skipClamp: Boolean(options?.skipClamp),
+        prevScale: prevTransform?.scale ?? null,
+        nextScale: adjusted.scale,
+        prevTranslation: prevTransform?.translation ?? null,
+        nextTranslation: adjusted.translation,
+      });
 
       transformRef.current = adjusted;
       if (options?.immediate) {
@@ -1268,10 +1283,7 @@ export const WebGLRouteMapPrototype = observer(() => {
       }
 
       const safePercent = Math.max(ICON_SIZE_MIN, currentPercent);
-      const baseSizePxAt100 = Math.max(
+      const baseSizePxAt100 = Math.max(1, initialSizePx / (safePercent / 100));
-        1,
-        initialSizePx / (safePercent / 100),
-      );
 
       sightIconResizeStateRef.current = {
         sightId,
@@ -1376,6 +1388,10 @@ export const WebGLRouteMapPrototype = observer(() => {
 
     if (typeof ResizeObserver === "undefined") {
       const handleResize = () => {
+        debugWebglLog("container resize (fallback)", {
+          width: container.clientWidth,
+          height: container.clientHeight,
+        });
         setCanvasSize({
           width: container.clientWidth,
           height: container.clientHeight,
@@ -1389,6 +1405,7 @@ export const WebGLRouteMapPrototype = observer(() => {
     const observer = new ResizeObserver((entries) => {
       for (const entry of entries) {
         const { width, height } = entry.contentRect;
+        debugWebglLog("container resize", { width, height });
         setCanvasSize({ width, height });
       }
     });
@@ -1418,6 +1435,15 @@ export const WebGLRouteMapPrototype = observer(() => {
     const dpr = Math.max(1, window.devicePixelRatio || 1);
     const displayWidth = Math.max(1, Math.floor(canvasSize.width * dpr));
     const displayHeight = Math.max(1, Math.floor(canvasSize.height * dpr));
+    debugWebglLog("drawScene:start", {
+      cssCanvasWidth: canvasSize.width,
+      cssCanvasHeight: canvasSize.height,
+      dpr,
+      displayWidth,
+      displayHeight,
+      routeVerticesCount: rotatedRouteVertices.length / 2,
+      stationVerticesCount: rotatedStationVertices.length / 2,
+    });
 
     if (canvas.width !== displayWidth || canvas.height !== displayHeight) {
       canvas.width = displayWidth;
@@ -1531,6 +1557,11 @@ export const WebGLRouteMapPrototype = observer(() => {
     }
 
     const { scale, translation } = transform;
+    debugWebglLog("drawScene:transform", {
+      scale,
+      translation,
+      scaleLimits: scaleLimitsRef.current,
+    });
 
     const desiredRouteWidthCss = 7;
     const desiredStationDiameterCss = 12;
@@ -1545,6 +1576,11 @@ export const WebGLRouteMapPrototype = observer(() => {
         rotatedRouteVertices,
         lineWidth,
       );
+      debugWebglLog("drawScene:route", {
+        desiredRouteWidthCss,
+        lineWidthWorldUnits: lineWidth,
+        thickVerticesCount: thickVertices.length / 2,
+      });
       if (thickVertices.length === 0) {
         gl.bufferData(gl.ARRAY_BUFFER, rotatedRouteVertices, gl.STATIC_DRAW);
       } else {
@@ -1635,6 +1671,10 @@ export const WebGLRouteMapPrototype = observer(() => {
           pointOuterSizePx,
         );
       }
+      debugWebglLog("drawScene:stations", {
+        pointOuterSizePx,
+        pointInnerSizePx,
+      });
       if (pointProgram.uniformLocations.u_color) {
         gl.uniform4f(
           pointProgram.uniformLocations.u_color,
@@ -1814,6 +1854,87 @@ export const WebGLRouteMapPrototype = observer(() => {
     drawScene();
   }, [drawScene]);
 
+  useEffect(() => {
+    const camera =
+      transformState ?? transformRef.current ?? lastTransformRef.current;
+    if (!camera || !sightData?.length) return;
+
+    const routeIconSizePercent =
+      routeData?.icon_size ?? originalRouteData?.icon_size ?? 100;
+
+    for (const sight of sightData) {
+      const shouldUseCustomSightIcon =
+        sight.is_default_icon === false && !isMediaIdEmpty(sight.icon);
+      if (!shouldUseCustomSightIcon) continue;
+
+      const customSightIconScaleFactor =
+        camera.scale / Math.max(customSightIconBaseScaleRef.current ?? 1, 1e-6);
+      const sightIconSizePercent =
+        liveSightIconSizes.get(sight.id) ??
+        (typeof sight.icon_size === "number" && Number.isFinite(sight.icon_size)
+          ? sight.icon_size
+          : routeIconSizePercent);
+      const iconSizePx =
+        30 *
+        clamp(sightIconSizePercent / 100, 0.1, 10) *
+        customSightIconScaleFactor;
+
+      debugWebglLog("custom sight icon size", {
+        sightId: sight.id,
+        cameraScale: camera.scale,
+        baseScale: customSightIconBaseScaleRef.current,
+        scaleFactor: customSightIconScaleFactor,
+        iconPercent: sightIconSizePercent,
+        iconSizePx,
+      });
+    }
+  }, [
+    sightData,
+    liveSightIconSizes,
+    transformState,
+    routeData?.icon_size,
+    originalRouteData?.icon_size,
+  ]);
+
+  useEffect(() => {
+    if (!stationData?.ru?.length) return;
+
+    const fontSizePercent =
+      routeData?.font_size ?? originalRouteData?.font_size ?? 100;
+    const fontScale = fontSizePercent / 100;
+    const baseStationIconSizePx = 16 * fontScale * 1.2;
+
+    for (const station of stationData.ru) {
+      const hasCustomStationIcon = !isMediaIdEmpty(station.icon);
+      if (!hasCustomStationIcon) continue;
+
+      const stationIconSizePercent =
+        liveStationIconSizes.get(station.id) ??
+        (typeof station.icon_size === "number" && Number.isFinite(station.icon_size)
+          ? station.icon_size
+          : 100);
+      const iconSizePx = Math.max(
+        1,
+        Math.round(
+          baseStationIconSizePx * clamp(stationIconSizePercent / 100, 0.1, 10),
+        ),
+      );
+
+      debugWebglLog("custom station icon size", {
+        stationId: station.id,
+        fontSizePercent,
+        baseStationIconSizePx,
+        iconPercent: stationIconSizePercent,
+        iconSizePx,
+      });
+    }
+  }, [
+    stationData?.ru,
+    liveStationIconSizes,
+    routeData?.font_size,
+    originalRouteData?.font_size,
+  ]);
+
   const applyCenterFromCoordinates = useCallback(
     (latitude: number, longitude: number) => {
       const roundedLat = Math.round(latitude * 1e6) / 1e6;
@@ -2572,8 +2693,7 @@ export const WebGLRouteMapPrototype = observer(() => {
             const cssX = labelX / dpr;
             const cssY = labelY / dpr;
             const shouldUseCustomSightIcon =
-              sight.is_default_icon === false &&
+              sight.is_default_icon === false && !isMediaIdEmpty(sight.icon);
-              !isMediaIdEmpty(sight.icon);
             const sightIconUrl = shouldUseCustomSightIcon
               ? `${mediaBaseUrl}${sight.icon}/download?token=${mediaToken}`
               : SIGHT_ICON_URL;