Emoji Text Replacement

import re

EMOJI_MAP = {
    "sun": "☀️", "moon": "🌙", "star": "⭐", "heart": "❤️",
    "fire": "🔥", "water": "💧", "tree": "🌳", "flower": "🌸",
    "house": "🏠", "car": "🚗", "book": "📚", "music": "🎵",
    "food": "🍎", "coffee": "☕", "dog": "🐶", "cat": "🐱",
    "money": "💰", "time": "⏰", "phone": "📱", "computer": "💻",
    "love": "💕", "happy": "😊", "sad": "😢", "angry": "😠",
    "eyes": "👀", "hand": "👋", "thumbs up": "👍", "party": "🎉",
    "snow": "❄️", "rain": "🌧️", "lightning": "⚡", "wind": "🌬️",
}

def replace_with_emojis(text: str) -> str:
    """Replace words in text with matching emojis."""
    def replace_word(match):
        word = match.group(0)
        return EMOJI_MAP.get(word.lower(), word)

    # Build pattern from longest to shortest to handle multi-word mappings
    pattern = r"\b(" + "|".join(
        re.escape(k) for k in sorted(EMOJI_MAP.keys(), key=len, reverse=True)
    ) + r")\b"

    return re.sub(pattern, replace_word, text, flags=re.IGNORECASE)

text = "I love the sun, the moon, and the stars. My heart is on fire!"
result = replace_with_emojis(text)
print(result)
# Output: I ❤️ the ☀️, the 🌙, and the ⭐. My ❤️ is on 🔥!