#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""UI-Hilfsfunktionen: Farben, Textausgabe, Balken, Glitch-Effekte."""

import os
import sys
import time
import random

try:
    sys.stdout.reconfigure(encoding='utf-8', errors='replace')
except (AttributeError, ValueError):
    pass

try:
    import colorama
    colorama.init()
except ImportError:
    pass

if os.name == 'nt':
    os.system('')  # aktiviert ANSI-Codes im klassischen Windows-Terminal


class Colors:
    GREEN = '\033[92m'
    RED = '\033[91m'
    CYAN = '\033[96m'
    YELLOW = '\033[93m'
    MAGENTA = '\033[95m'
    WHITE = '\033[97m'
    BLACK = '\033[30m'
    BOLD = '\033[1m'
    DIM = '\033[2m'
    BLINK = '\033[5m'
    END = '\033[0m'


# Globaler Schalter für --fast Flag; wenn True, werden alle Delays uebersprungen
FAST_MODE = False


def set_fast_mode(enabled):
    global FAST_MODE
    FAST_MODE = enabled


def slow_print(text, delay=0.02):
    """Langsames Tippen fuer Dramatik (uebersprungen im --fast Modus)."""
    if FAST_MODE:
        print(text)
        return
    for char in text:
        print(char, end='', flush=True)
        time.sleep(delay)
    print()


def dramatic_pause(seconds=1):
    if FAST_MODE:
        return
    time.sleep(seconds)


def clear_screen():
    os.system('cls' if os.name == 'nt' else 'clear')


def bar(val, max_val, color, width=20):
    val = max(0, min(val, max_val))
    filled = int(val / max_val * width) if max_val else 0
    filled = max(0, min(width, filled))
    b = '█' * filled + '░' * (width - filled)
    return f"{color}{b}{Colors.END} {val}/{max_val}"


def glitch_text(text, intensity=0.15, rng=None):
    """Verwuerfelt zufaellig Zeichen in einem String -- fuer Deja-vu-/Bug-Momente."""
    rng = rng or random
    glitch_chars = "#%&@$!?/\\|01"
    out = []
    for ch in text:
        if ch != ' ' and rng.random() < intensity:
            out.append(rng.choice(glitch_chars))
        else:
            out.append(ch)
    return ''.join(out)


def print_glitch_sequence(text, cycles=3, delay=0.04, color=Colors.GREEN):
    """Zeigt kurz Glitch-Varianten eines Textes an, bevor der echte Text steht."""
    if FAST_MODE:
        print(f"{color}{text}{Colors.END}")
        return
    for _ in range(cycles):
        print(f"\r{color}{glitch_text(text, 0.4)}{Colors.END}", end='', flush=True)
        time.sleep(delay)
    print(f"\r{color}{text}{Colors.END}")


def divider(char='═', width=45, color=Colors.CYAN):
    print(f"{color}{char * width}{Colors.END}")


def section_title(title, color=Colors.CYAN):
    print(f"\n{Colors.BOLD}{color}═══ {title} ═══{Colors.END}")


def menu(options, prompt="Aktion"):
    """options: Liste von (key, label) Tupeln. Gibt die gewaehlte Eingabe zurueck."""
    for key, label in options:
        print(f"  {Colors.GREEN}[{key}]{Colors.END} {label}")
    return input(f"\n{Colors.CYAN}{prompt}: {Colors.END}").strip()