refactor: Simplify GraphView component by removing state management and implementing grid-based node positioning for improved layout

frontend/src/GraphView.jsx

@@ -1,44 +1,6 @@
-import React, { useState, useEffect, useRef } from 'react';
+import React from 'react';
 
 function GraphView({ servers, connections }) {
-  const [positions, setPositions] = useState({});
-  const [dimensions, setDimensions] = useState({ width: 800, height: 500 });
-  const svgRef = useRef(null);
-
-  // Вычисляем позиции узлов
-  useEffect(() => {
-    if (servers.length === 0) return;
-
-    const newPositions = {};
-    const centerX = dimensions.width / 2;
-    const centerY = dimensions.height / 2;
-    const radius = Math.min(dimensions.width, dimensions.height) * 0.3;
-
-    servers.forEach((server, index) => {
-      const angle = (index / servers.length) * 2 * Math.PI;
-      newPositions[server.ip] = {
-        x: centerX + radius * Math.cos(angle),
-        y: centerY + radius * Math.sin(angle)
-      };
-    });
-
-    setPositions(newPositions);
-  }, [servers, dimensions]);
-
-  // Обработчик изменения размера
-  useEffect(() => {
-    const handleResize = () => {
-      if (svgRef.current) {
-        const rect = svgRef.current.getBoundingClientRect();
-        setDimensions({ width: rect.width, height: 500 });
-      }
-    };
-
-    handleResize();
-    window.addEventListener('resize', handleResize);
-    return () => window.removeEventListener('resize', handleResize);
-  }, []);
-
   if (servers.length === 0) {
     return (
       <div className="text-center py-5">
@@ -50,21 +12,32 @@ function GraphView({ servers, connections }) {
     );
   }
 
+  // Простое позиционирование узлов в сетке
+  const getNodePosition = (index, total) => {
+    const cols = Math.ceil(Math.sqrt(total));
+    const row = Math.floor(index / cols);
+    const col = index % cols;
+    const spacing = 150;
+    return {
+      x: 100 + col * spacing,
+      y: 100 + row * spacing
+    };
+  };
+
   return (
-    <div style={{ width: '100%', height: '500px', border: '1px solid #e5e7eb', borderRadius: '8px', overflow: 'hidden' }}>
-      <svg
-        ref={svgRef}
-        width="100%"
-        height="100%"
-        viewBox={`0 0 ${dimensions.width} ${dimensions.height}`}
-        style={{ background: '#f8fafc' }}
-      >
+    <div style={{ width: '100%', height: '500px', border: '1px solid #e5e7eb', borderRadius: '8px', overflow: 'hidden', background: '#f8fafc' }}>
+      <svg width="100%" height="100%" viewBox="0 0 800 500">
         {/* Связи */}
         {connections.map((connection, index) => {
-          const fromPos = positions[connection.from];
-          const toPos = positions[connection.to];
+          const fromServer = servers.find(s => s.ip === connection.from);
+          const toServer = servers.find(s => s.ip === connection.to);
           
-          if (!fromPos || !toPos) return null;
+          if (!fromServer || !toServer) return null;
+
+          const fromIndex = servers.indexOf(fromServer);
+          const toIndex = servers.indexOf(toServer);
+          const fromPos = getNodePosition(fromIndex, servers.length);
+          const toPos = getNodePosition(toIndex, servers.length);
 
           return (
             <g key={`link-${index}`}>
@@ -104,9 +77,8 @@ function GraphView({ servers, connections }) {
         })}
 
         {/* Узлы (серверы) */}
-        {servers.map(server => {
-          const pos = positions[server.ip];
-          if (!pos) return null;
+        {servers.map((server, index) => {
+          const pos = getNodePosition(index, servers.length);
 
           return (
             <g key={server.ip}>
@@ -114,7 +86,7 @@ function GraphView({ servers, connections }) {
               <circle
                 cx={pos.x}
                 cy={pos.y}
-                r="25"
+                r="30"
                 fill="#3b82f6"
                 stroke="#1e40af"
                 strokeWidth="2"
@@ -123,7 +95,7 @@ function GraphView({ servers, connections }) {
               {/* DNS имя */}
               <text
                 x={pos.x}
-                y={pos.y - 5}
+                y={pos.y - 8}
                 textAnchor="middle"
                 fontSize="11"
                 fill="white"
@@ -135,7 +107,7 @@ function GraphView({ servers, connections }) {
               {/* IP адрес */}
               <text
                 x={pos.x}
-                y={pos.y + 10}
+                y={pos.y + 8}
                 textAnchor="middle"
                 fontSize="10"
                 fill="white"

frontend/src/ServerManager.jsx

@@ -17,7 +17,7 @@ import {
   IconChevronDown,
   IconLink
 } from '@tabler/icons-react';
-// import GraphView from './GraphView';
+import GraphView from './GraphView';
 
 const API_URL = '/api';
 
@@ -668,15 +668,14 @@ function ServerManager() {
         error={error}
       />
 
-      {/* Временно отключаем граф для отладки */}
-      {/* <div className="card w-100 mb-4">
+      <div className="card w-100 mb-4">
         <div className="card-header">
           <h3 className="card-title mb-0">Граф связей между серверами</h3>
         </div>
         <div className="card-body">
           <GraphView servers={servers} connections={connections} />
         </div>
-      </div> */}
+      </div>
       <div className="card w-100 mb-4">
         <div className="card-header">
           <h3 className="card-title mb-0">Добавить связь между серверами</h3>