package fixtures;

import java.util.*;
import java.nio.charset.*;

// Unicode comment: 你好世界 🌍🚀

public class EdgeCases {
    public static void main(String[] args) throws Exception {
        // Unicode string literals
        String unicode = "こんにちは世界";
        System.out.println(unicode);

        // Null byte in string
        String nullStr = "hello\u0000world";
        System.out.println("Null-str length: " + nullStr.length());

        // Deeply nested classes
        Map<Integer, Map<Integer, Map<Integer, Map<Integer, Map<Integer, String>>>>> deep =
            new HashMap<>();
        Map<Integer, Map<Integer, Map<Integer, Map<Integer, String>>>> l4 = new HashMap<>();
        Map<Integer, Map<Integer, Map<Integer, String>>> l3 = new HashMap<>();
        Map<Integer, Map<Integer, String>> l2 = new HashMap<>();
        Map<Integer, String> l1 = new HashMap<>();
        l1.put(5, "deep");
        l2.put(4, l1);
        l3.put(3, l2);
        l4.put(2, l3);
        deep.put(1, l4);
        System.out.println(deep.get(1).get(2).get(3).get(4).get(5));

        // Very long string
        StringBuilder sb = new StringBuilder(10000);
        for (int i = 0; i < 10000; i++) sb.append('x');
        System.out.println("Long string length: " + sb.length());

        // BOM prefix
        byte[] bom = {(byte)0xEF, (byte)0xBB, (byte)0xBF, (byte)'H', (byte)'i'};
        System.out.println(new String(bom, StandardCharsets.UTF_8));

        // Deep exception chaining
        try {
            try {
                try {
                    throw new RuntimeException("inner");
                } catch (Exception e) {
                    throw new RuntimeException("middle", e);
                }
            } catch (Exception e) {
                throw new RuntimeException("outer", e);
            }
        } catch (Exception e) {
            System.out.println("Chained: " + e.getMessage());
        }

        // Deep array nesting
        int[][][][][][] deepArray = new int[2][2][2][2][2][2];
        deepArray[0][0][0][0][0][0] = 42;
        System.out.println("Deep array: " + deepArray[0][0][0][0][0][0]);
    }
}