// Test folder click handler functionality - simplified version
const { test } = require('node:test');
const assert = require('assert');
const fs = require('fs');
const path = require('path');
const AppState = require('./utils/renderer/AppState');

test('UIManager handles folder click for regular folders', async () => {
  // Create a temporary test directory
  const testDir = path.join(__dirname, 'test_folder_click');
  if (!fs.existsSync(testDir)) {
    fs.mkdirSync(testDir);
  }
  
  try {
    // Create mock UIManager with just the methods we need to test
    const mockUIManager = {
      currentDirectory: null,
      selectedDirEl: { textContent: '' },
      
      appState: {
        navigationStack: [],
        currentDepth: 0,
        
        addToNavigationStack: function(dir) {
          this.navigationStack.push(dir);
          this.currentDepth = this.navigationStack.length - 1;
        },
        
        getNavigationStack: function() {
          return this.navigationStack;
        },
        
        canGoBack: function() {
          return this.currentDepth > 0;
        },
        
        goBack: function() {
          if (this.currentDepth > 0) {
            this.navigationStack.pop();
            this.currentDepth--;
            return this.navigationStack[this.currentDepth];
          }
          return null;
        }
      },
      
      scanDirectory: async function(dir) {
        return { success: true, files: [] };
      },
      
      _logAuditEvent: async function() {},
      
      openDirectory: async function(directory) {
        this.appState.addToNavigationStack(directory);
        this.currentDirectory = directory;
      },
      
      handleFolderClick: async function(folderPath, folderName) {
        console.log('Folder clicked:', folderName, 'at path:', folderPath);
        
        // Validate folder path exists
        if (!fs.existsSync(folderPath) || !fs.statSync(folderPath).isDirectory()) {
          console.error('Invalid folder path:', folderPath);
          return; // Don't navigate
        }
        
        // Open the folder
        await this.openDirectory(folderPath);
      }
    };
    
    // Test with non-existent folder (should not navigate)
    const nonExistentPath = '/non/existent/path';
    const consoleError = console.error;
    console.error = () => {}; // Suppress error output
    
    try {
      await mockUIManager.handleFolderClick(nonExistentPath, 'nonexistent');
      // Should not navigate to non-existent folder
      assert.strictEqual(mockUIManager.currentDirectory, null, 'Should not navigate to non-existent folder');
    } finally {
      console.error = consoleError;
    }
    
    // Test with valid folder
    await mockUIManager.handleFolderClick(testDir, 'test_folder_click');
    assert.strictEqual(mockUIManager.currentDirectory, testDir, 'Should navigate to valid folder');
    assert.strictEqual(mockUIManager.appState.getNavigationStack().length, 1, 'Should add folder to navigation stack');
  } finally {
    // Clean up test directory
    if (fs.existsSync(testDir)) {
      fs.rmSync(testDir, { recursive: true });
    }
  }
});

test('UIManager validates folder path before navigation', async () => {
  const mockUIManager = {
    currentDirectory: '/test/source',
    selectedDirEl: { textContent: '' },
    
    appState: {
      navigationStack: ['/test/source'],
      currentDepth: 0,
      
      addToNavigationStack: function(dir) {
        this.navigationStack.push(dir);
        this.currentDepth = this.navigationStack.length - 1;
      },
      
      canGoBack: function() {
        return this.currentDepth > 0;
      },
      
      goBack: function() {
        if (this.currentDepth > 0) {
          this.navigationStack.pop();
          this.currentDepth--;
          return this.navigationStack[this.currentDepth];
        }
        return null;
      }
    },
    
    openDirectory: async function(directory) {
      this.appState.addToNavigationStack(directory);
      this.currentDirectory = directory;
    },
    
    handleFolderClick: async function(folderPath, folderName) {
      console.log('Folder clicked:', folderName, 'at path:', folderPath);
      
      // Validate folder path exists
      if (!fs.existsSync(folderPath) || !fs.statSync(folderPath).isDirectory()) {
        console.error('Invalid folder path:', folderPath);
        return; // Don't navigate
      }
      
      // Open the folder
      await this.openDirectory(folderPath);
    }
  };
  
  // Test with non-existent folder
  const nonExistentPath = '/non/existent/path';
  const consoleError = console.error;
  console.error = () => {}; // Suppress error output
  
  try {
    await mockUIManager.handleFolderClick(nonExistentPath, 'nonexistent');
    // Should not navigate to non-existent folder
    assert.strictEqual(mockUIManager.currentDirectory, '/test/source', 'Should not change directory for non-existent folder');
  } finally {
    console.error = consoleError;
  }
});

test('UIManager handles special folder navigation', async () => {
  const testDir = path.join(__dirname, 'test_special_folders');
  
  // Create special folder structure
  if (!fs.existsSync(testDir)) {
    fs.mkdirSync(testDir);
  }
  
  const extrasPath = path.join(testDir, 'extras');
  const behindScenesPath = path.join(testDir, 'behind the scenes');
  
  if (!fs.existsSync(extrasPath)) {
    fs.mkdirSync(extrasPath);
  }
  
  if (!fs.existsSync(behindScenesPath)) {
    fs.mkdirSync(behindScenesPath);
  }
  
  try {
    const mockUIManager = {
      currentDirectory: null,
      selectedDirEl: { textContent: '' },
      
      appState: {
        navigationStack: [],
        currentDepth: 0,
        
        addToNavigationStack: function(dir) {
          this.navigationStack.push(dir);
          this.currentDepth = this.navigationStack.length - 1;
        },
        
        getNavigationStack: function() {
          return this.navigationStack;
        },
        
        canGoBack: function() {
          return this.currentDepth > 0;
        },
        
        goBack: function() {
          if (this.currentDepth > 0) {
            this.navigationStack.pop();
            this.currentDepth--;
            return this.navigationStack[this.currentDepth];
          }
          return null;
        }
      },
      
      scanDirectory: async function(dir) {
        return { success: true, files: [] };
      },
      
      _logAuditEvent: async function() {},
      
      openDirectory: async function(directory) {
        this.appState.addToNavigationStack(directory);
        this.currentDirectory = directory;
      },
      
      handleFolderClick: async function(folderPath, folderName) {
        console.log('Folder clicked:', folderName, 'at path:', folderPath);
        
        // Validate folder path exists
        if (!fs.existsSync(folderPath) || !fs.statSync(folderPath).isDirectory()) {
          console.error('Invalid folder path:', folderPath);
          return; // Don't navigate
        }
        
        // Open the folder
        await this.openDirectory(folderPath);
      }
    };
    
    // Test navigating to extras folder
    await mockUIManager.handleFolderClick(extrasPath, 'extras');
    assert.strictEqual(mockUIManager.currentDirectory, extrasPath, 'Should navigate to extras folder');
    
    // Test navigating to behind the scenes folder
    await mockUIManager.handleFolderClick(behindScenesPath, 'behind the scenes');
    assert.strictEqual(mockUIManager.currentDirectory, behindScenesPath, 'Should navigate to behind the scenes folder');
    
    // Verify navigation stack
    const stack = mockUIManager.appState.getNavigationStack();
    assert.ok(stack.includes(extrasPath));
    assert.ok(stack.includes(behindScenesPath));
  } finally {
    // Clean up
    if (fs.existsSync(testDir)) {
      fs.rmSync(testDir, { recursive: true });
    }
  }
});

test('Folder click handler validates path exists', () => {
  const testDir = path.join(__dirname, 'test_path_validation');
  
  if (!fs.existsSync(testDir)) {
    fs.mkdirSync(testDir);
  }
  
  try {
    const mockUIManager = {
      currentDirectory: testDir,
      selectedDirEl: { textContent: '' },
      
      appState: {
        navigationStack: [testDir],
        currentDepth: 0,
        
        addToNavigationStack: function(dir) {
          this.navigationStack.push(dir);
          this.currentDepth = this.navigationStack.length - 1;
        },
        
        goBack: function() {
          if (this.currentDepth > 0) {
            this.navigationStack.pop();
            this.currentDepth--;
            return this.navigationStack[this.currentDepth];
          }
          return null;
        }
      },
      
      openDirectory: async function(directory) {
        this.appState.addToNavigationStack(directory);
        this.currentDirectory = directory;
      },
      
      handleFolderClick: function(folderPath, folderName) {
        if (!fs.existsSync(folderPath) || !fs.statSync(folderPath).isDirectory()) {
          return; // Don't navigate
        }
        
        this.openDirectory(folderPath);
      }
    };
    
    // Test with file instead of directory
    const testFile = path.join(testDir, 'testfile.txt');
    fs.writeFileSync(testFile, 'test content');
    
    const consoleError = console.error;
    console.error = () => {};
    
    try {
      mockUIManager.handleFolderClick(testFile, 'testfile.txt');
      // Should not navigate to file
      assert.strictEqual(mockUIManager.currentDirectory, testDir, 'Should not navigate to file');
    } finally {
      console.error = consoleError;
    }
    
    // Test with non-existent directory
    const nonExistentDir = path.join(testDir, 'nonexistent');
    mockUIManager.handleFolderClick(nonExistentDir, 'nonexistent');
    assert.strictEqual(mockUIManager.currentDirectory, testDir, 'Should not navigate to non-existent directory');
  } finally {
    if (fs.existsSync(testDir)) {
      fs.rmSync(testDir, { recursive: true });
    }
  }
});

test('UIManager handleFolderClick method exists', () => {
  const mockUIManager = {
    handleFolderClick: function(folderPath, folderName) {
      // Mock implementation
    }
  };
  
  assert.ok(mockUIManager.handleFolderClick, 'handleFolderClick method should exist');
  assert.strictEqual(typeof mockUIManager.handleFolderClick, 'function', 'handleFolderClick should be a function');
});

console.log('All folder click handler tests passed!');