Sudoku Mobile App & Web-App Entwicklung

// App.js - Hauptstruktur
import React, { useState, useEffect } from 'react';
import { View, StyleSheet } from 'react-native';
import SudokuGrid from './components/SudokuGrid';
import GameControls from './components/GameControls';
import { generateSudoku, validateSolution } from './utils/sudokuLogic';
import { generateGenericAlternates } from '@/lib/metadata/hreflang-alternates';

export default function SudokuApp() {
  const [puzzle, setPuzzle] = useState(null);
  const [solution, setSolution] = useState(null);
  const [currentGrid, setCurrentGrid] = useState(null);
  const [difficulty, setDifficulty] = useState('medium');

  useEffect(() => {
    startNewGame();
  }, [difficulty]);

  const startNewGame = () => {
    const { puzzle, solution } = generateSudoku(difficulty);
    setPuzzle(puzzle);
    setSolution(solution);
    setCurrentGrid([...puzzle]);
  };

  const updateCell = (row, col, value) => {
    const newGrid = [...currentGrid];
    newGrid[row][col] = value;
    setCurrentGrid(newGrid);
    
    if (validateSolution(newGrid)) {
      // Spiel gewonnen!
      handleGameWon();
    }
  };

  const handleGameWon = () => {
    // Siegeslogik implementieren
    console.log('Glückwunsch! Puzzle gelöst!');
  };

  return (
    <View style={styles.container}>
      <SudokuGrid 
        grid={currentGrid} 
        onCellUpdate={updateCell}
        initialPuzzle={puzzle}
      />
      <GameControls 
        onNewGame={startNewGame}
        onUndo={() => {/* Undo-Logik */}}
        onHint={() => {/* Hinweis-Logik */}}
        difficulty={difficulty}
        onDifficultyChange={setDifficulty}
      />
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#fff',
    alignItems: 'center',
    justifyContent: 'center',
    padding: 20,
  },
});