Connect FE with BE api

backend/internal/filesystem/filesystem.go

@@ -1,7 +1,6 @@
 package filesystem
 
 import (
-	"io/ioutil"
 	"os"
 	"path/filepath"
 )
@@ -10,28 +9,52 @@ type FileSystem struct {
 	RootDir string
 }
 
+type FileNode struct {
+	Type  string     `json:"type"`
+	Name  string     `json:"name"`
+	Files []FileNode `json:"files,omitempty"`
+}
+
 func New(rootDir string) *FileSystem {
 	return &FileSystem{RootDir: rootDir}
 }
 
-func (fs *FileSystem) ListFilesRecursively() ([]string, error) {
-	var files []string
+func (fs *FileSystem) ListFilesRecursively() ([]FileNode, error) {
+	return fs.walkDirectory(fs.RootDir)
+}
 
-	err := filepath.Walk(fs.RootDir, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-		if !info.IsDir() {
-			relPath, _ := filepath.Rel(fs.RootDir, path)
-			files = append(files, relPath)
-		}
-		return nil
-	})
+func (fs *FileSystem) walkDirectory(dir string) ([]FileNode, error) {
+	var nodes []FileNode
 
-	return files, err
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, entry := range entries {
+		if entry.IsDir() {
+			subdir := filepath.Join(dir, entry.Name())
+			subFiles, err := fs.walkDirectory(subdir)
+			if err != nil {
+				return nil, err
+			}
+			nodes = append(nodes, FileNode{
+				Type:  "directory",
+				Name:  entry.Name(),
+				Files: subFiles,
+			})
+		} else {
+			nodes = append(nodes, FileNode{
+				Type: "file",
+				Name: entry.Name(),
+			})
+		}
+	}
+
+	return nodes, nil
 }
 
 func (fs *FileSystem) GetFileContent(filePath string) ([]byte, error) {
 	fullPath := filepath.Join(fs.RootDir, filePath)
-	return ioutil.ReadFile(fullPath)
+	return os.ReadFile(fullPath)
 }

frontend/package-lock.json

@@ -13,6 +13,8 @@
         "@codemirror/lang-markdown": "^6.2.5",
         "@codemirror/state": "^6.4.1",
         "@codemirror/view": "^6.34.0",
+        "@geist-ui/core": "^2.3.8",
+        "@geist-ui/icons": "^1.0.2",
         "codemirror": "^6.0.1",
         "react": "^18.3.1",
         "react-dom": "^18.3.1"
@@ -1857,7 +1859,6 @@
       "version": "7.25.6",
       "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.25.6.tgz",
       "integrity": "sha512-VBj9MYyDb9tuLq7yzqjgzt6Q+IBQLrGZfdjOekyEirZPHxXWoTSGUTMrpsfi58Up73d13NfYLv8HT9vmznjzhQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "regenerator-runtime": "^0.14.0"
@@ -2111,6 +2112,29 @@
         "node": ">=10.0.0"
       }
     },
+    "node_modules/@geist-ui/core": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/@geist-ui/core/-/core-2.3.8.tgz",
+      "integrity": "sha512-OKwGgTA4+fBM41eQbqDoUj4XBycZbYH7Ynrn6LPO5yKX7zeWPu/R7HN3vB4/oHt34VTDQI5sDNb1SirHvNyB5w==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.16.7"
+      },
+      "peerDependencies": {
+        "react": ">=16.9.0",
+        "react-dom": ">=16.9.0"
+      }
+    },
+    "node_modules/@geist-ui/icons": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@geist-ui/icons/-/icons-1.0.2.tgz",
+      "integrity": "sha512-Npfa0NW6fQ31qw/+iMPWbs1hAcJ/3FqBjSLYgEfITDqy/3TJFpFKeVyK04AC/hTmYTsdNruVYczqPNcham5FOQ==",
+      "license": "MIT",
+      "peerDependencies": {
+        "@geist-ui/core": ">=1.0.0",
+        "react": ">=16.13.0"
+      }
+    },
     "node_modules/@jridgewell/gen-mapping": {
       "version": "0.3.5",
       "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.5.tgz",
@@ -5941,7 +5965,6 @@
       "version": "0.14.1",
       "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.14.1.tgz",
       "integrity": "sha512-dYnhHh0nJoMfnkZs6GmmhFknAGRrLznOu5nc9ML+EJxGvrx6H7teuevqVqCuPcPK//3eDrrjQhehXVx9cnkGdw==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/regenerator-transform": {

frontend/package.json

@@ -27,6 +27,8 @@
     "@codemirror/lang-markdown": "^6.2.5",
     "@codemirror/state": "^6.4.1",
     "@codemirror/view": "^6.34.0",
+    "@geist-ui/core": "^2.3.8",
+    "@geist-ui/icons": "^1.0.2",
     "codemirror": "^6.0.1",
     "react": "^18.3.1",
     "react-dom": "^18.3.1"

frontend/src/App.js

@@ -1,23 +1,67 @@
-import React, { useState } from 'react';
+import React, { useState, useEffect } from 'react';
+import { GeistProvider, CssBaseline } from '@geist-ui/core';
 import Editor from './components/Editor';
 import FileTree from './components/FileTree';
+import { fetchFileList, fetchFileContent } from './services/api';
 import './App.scss';
 
 function App() {
   const [content, setContent] = useState('# Welcome to NovaMD\n\nStart editing here!');
-  const [files, setFiles] = useState(['README.md', 'chapter1.md', 'chapter2.md']);
+  const [files, setFiles] = useState([]);
+  const [selectedFile, setSelectedFile] = useState(null);
+  const [error, setError] = useState(null);
+
+  useEffect(() => {
+    const loadFileList = async () => {
+      try {
+        const fileList = await fetchFileList();
+        if (Array.isArray(fileList)) {
+          setFiles(fileList);
+        } else {
+          throw new Error('File list is not an array');
+        }
+      } catch (error) {
+        console.error('Failed to load file list:', error);
+        setError('Failed to load file list. Please try again later.');
+      }
+    };
+
+    loadFileList();
+  }, []);
+
+  const handleFileSelect = async (filePath) => {
+    try {
+      const fileContent = await fetchFileContent(filePath);
+      setContent(fileContent);
+      setSelectedFile(filePath);
+    } catch (error) {
+      console.error('Failed to load file content:', error);
+      setError('Failed to load file content. Please try again.');
+    }
+  };
 
   return (
-    <div className="App">
-      <div className="sidebar">
-        <FileTree files={files} />
+    <GeistProvider>
+      <CssBaseline />
+      <div className="App">
+        <div className="sidebar">
+          {error ? (
+            <div className="error">{error}</div>
+          ) : (
+            <FileTree 
+              files={files} 
+              onFileSelect={handleFileSelect} 
+              selectedFile={selectedFile} 
+            />
+          )}
+        </div>
+        <div className="main-content">
+          <h1>NovaMD</h1>
+          <Editor content={content} onChange={setContent} />
+        </div>
       </div>
-      <div className="main-content">
-        <h1>NovaMD</h1>
-        <Editor content={content} onChange={setContent} />
-      </div>
-    </div>
+    </GeistProvider>
   );
 }
 
-export default App;
+export default App;

frontend/src/App.scss

@@ -1,33 +1,49 @@
+// Variables
+$sidebar-width: 250px;
+$border-color: #eaeaea;
+$padding: 20px;
+
 .App {
-    display: flex;
-    height: 100vh;
-  
-    .sidebar {
-      width: 200px;
-      background-color: #f0f0f0;
-      padding: 20px;
-      overflow-y: auto;
-    }
-  
-    .main-content {
-      flex-grow: 1;
-      padding: 20px;
-      overflow-y: auto;
+  display: flex;
+  height: 100vh;
+
+  .sidebar {
+    width: $sidebar-width;
+    padding: $padding;
+    border-right: 1px solid $border-color;
+    overflow-y: auto;
+  }
+
+  .main-content {
+    flex-grow: 1;
+    padding: $padding;
+    overflow-y: auto;
+
+    h1 {
+      margin-top: 0;
     }
   }
-  
+}
+
+// Geist UI Tree component customization
+:global {
   .file-tree {
-    ul {
-      list-style-type: none;
-      padding-left: 20px;
+    .label {
+      display: flex;
+      align-items: center;
     }
-  
-    li {
-      margin-bottom: 5px;
-      cursor: pointer;
-  
-      &:hover {
-        text-decoration: underline;
-      }
+
+    .icon {
+      margin-right: 8px;
     }
-  }
+
+    .name {
+      font-size: 14px;
+    }
+
+    .selected {
+      color: #0070f3;
+      font-weight: bold;
+    }
+  }
+}

frontend/src/components/FileTree.js

@@ -1,15 +1,38 @@
 import React from 'react';
+import { Tree } from '@geist-ui/core';
+import { File, Folder } from '@geist-ui/icons';
+
+const FileTree = ({ 
+  files = [], 
+  onFileSelect = () => {}, 
+  selectedFile = null 
+}) => {
+  if (files.length === 0) {
+    return <div>No files to display</div>;
+  }
+
+  const handleSelect = (filePath) => {
+      onFileSelect(filePath);
+  };
+
+  const renderLabel = (node) => {
+    const path = getFilePath(node);
+    return (
+      <span style={{ color: path === selectedFile ? '#0070f3' : 'inherit' }}>
+        {node.name}
+      </span>
+    );
+  };
+
+  const renderIcon = ({ type }) => type === 'directory' ? <Folder /> : <File />;
 
-const FileTree = ({ files }) => {
   return (
-    <div className="file-tree">
-      <h3>Files</h3>
-      <ul>
-        {files.map((file, index) => (
-          <li key={index}>{file}</li>
-        ))}
-      </ul>
-    </div>
+    <Tree
+      value={files}
+      onClick={handleSelect}
+      renderIcon={renderIcon}
+      renderLabel={renderLabel}
+    />
   );
 };
 

frontend/src/services/api.js

@@ -0,0 +1,27 @@
+const API_BASE_URL = 'http://localhost:8080/api/v1';
+
+export const fetchFileList = async () => {
+    try {
+        const response = await fetch(`${API_BASE_URL}/files`);
+        if (!response.ok) {
+            throw new Error('Failed to fetch file list');
+        }
+        return await response.json();
+    } catch (error) {
+        console.error('Error fetching file list:', error);
+        throw error;
+    }
+};
+
+export const fetchFileContent = async (filePath) => {
+    try {
+        const response = await fetch(`${API_BASE_URL}/files/${filePath}`);
+        if (!response.ok) {
+            throw new Error('Failed to fetch file content');
+        }
+        return await response.text();
+    } catch (error) {
+        console.error('Error fetching file content:', error);
+        throw error;
+    }
+};