import re
from typing import List
from config import COLOR_HARMONY, CLOTHING_TYPES

def extract_clothing_info(text: str) -> dict:
    text_lower = text.lower()
    
    colors = list(COLOR_HARMONY.keys())
    found_color = None
    for color in colors:
        if color in text_lower:
            found_color = color
            break
    
    found_types = []
    for clothing_type in CLOTHING_TYPES:
        if clothing_type in text_lower:
            found_types.append(clothing_type)
    
    existing_item = None
    requested_item = None
    
    question_patterns = ["what kind of", "what", "which", "suggest", "recommend"]
    is_question = any(pattern in text_lower for pattern in question_patterns)
    
    if is_question and len(found_types) > 0:
        if "my" in text_lower or "i have" in text_lower or "i'm wearing" in text_lower:
            for i, word in enumerate(text_lower.split()):
                if word == "my" and i + 1 < len(text_lower.split()):
                    next_words = " ".join(text_lower.split()[i+1:i+4])
                    for ct in found_types:
                        if ct in next_words:
                            existing_item = ct
                            break
                if existing_item:
                    break
        
        for ct in found_types:
            if "match" in text_lower or "go with" in text_lower or "pair" in text_lower:
                ct_pos = text_lower.find(ct)
                match_pos = text_lower.find("match")
                if ct_pos > match_pos or "what kind of" in text_lower[:ct_pos]:
                    requested_item = ct
                    break
    
    if not existing_item and not requested_item and found_types:
        if is_question:
            requested_item = found_types[0]
        else:
            existing_item = found_types[0]
    
    return {
        "color": found_color,
        "type": existing_item or requested_item,
        "existing_item": existing_item,
        "requested_item": requested_item,
        "is_question": is_question,
        "raw_text": text
    }

def get_color_matches(color: str) -> List[str]:
    color_lower = color.lower()
    return COLOR_HARMONY.get(color_lower, ["white", "black", "grey", "beige"])

def extract_colors_from_query(query: str) -> tuple:
    query_lower = query.lower()
    colors = list(COLOR_HARMONY.keys())
    
    extended_colors = ["navy blue", "wine", "burgundy", "maroon", "crimson", "scarlet", "mauve", "taupe", "olive", "teal", "turquoise", "indigo", "cobalt"]
    all_colors = extended_colors + colors
    
    color_mapping = {
        "wine": "red", "burgundy": "red", "maroon": "red",
        "mauve": "purple", "taupe": "beige", "olive": "green",
        "teal": "blue", "turquoise": "blue", "indigo": "navy", "cobalt": "blue",
        "navy blue": "navy"
    }
    
    found_colors = []
    seen_mapped = set()
    for color in all_colors:
        if color in query_lower:
            mapped = color_mapping.get(color, color)
            if mapped not in seen_mapped:
                found_colors.append((color, mapped))
                seen_mapped.add(mapped)
    
    return found_colors

def detect_query_type(message: str) -> str:
    message_lower = message.lower()
    
    color_comparison_patterns = ["does", "do", "will", "can"]
    comparison_keywords = ["go with", "match", "work with", "pair with", "combine with"]
    color_suggestion_patterns = ["what color", "which color", "colors go with", "colors match", "better color", "color to match"]
    
    has_two_colors = len(extract_colors_from_query(message)) >= 2
    
    if any(pattern in message_lower for pattern in color_comparison_patterns) and any(kw in message_lower for kw in comparison_keywords) and has_two_colors:
        return "color_compatibility"
    
    outfit_request_patterns = ["suggest", "recommend", "outfit", "wear", "dress", "thinking of", "what should i wear", "what can i wear", "what to wear"]
    what_matches_patterns = ["what will go", "what goes with", "what matches", "what will match", "what can go"]
    
    if any(pattern in message_lower for pattern in what_matches_patterns) and any(item in message_lower for item in CLOTHING_TYPES):
        return "outfit_suggestion"
    
    if any(pattern in message_lower for pattern in outfit_request_patterns):
        return "outfit_suggestion"
    
    if any(pattern in message_lower for pattern in color_suggestion_patterns):
        return "color_suggestion"
    
    if any(ct in message_lower for ct in CLOTHING_TYPES) and any(c in message_lower for c in ["with", "match", "go", "pair", "style", "stylish", "look"]):
        return "outfit_suggestion"
    
    if len(extract_colors_from_query(message)) > 0 and any(word in message_lower for word in ["match", "with", "go", "pair"]):
        return "color_suggestion"
    
    if any(ct in message_lower for ct in CLOTHING_TYPES):
        return "outfit_suggestion"
    
    return "outfit_suggestion"

def is_greeting(message: str) -> bool:
    message_lower = message.lower().strip()
    greetings = [
        "hello", "hi", "hey", "good morning", "good afternoon", "good evening",
        "greetings", "howdy", "what's up", "whats up", "sup", "yo"
    ]
    return any(message_lower.startswith(g) or message_lower == g for g in greetings)

def is_name_question(message: str) -> bool:
    message_lower = message.lower().strip()
    name_patterns = [
        "what is your name", "what's your name", "whats your name",
        "who are you", "what are you", "tell me your name", "your name"
    ]
    return any(pattern in message_lower for pattern in name_patterns)