import streamlit as st
import os
from PIL import Image
import random

# Function to calculate aspect ratio
def calculate_aspect_ratio(image_path):
    with Image.open(image_path) as img:
        width, height = img.size
        gcd = lambda a, b: a if not b else gcd(b, a % b)
        divisor = gcd(width, height)
        return width // divisor, height // divisor

# Function to classify room types based on aspect ratio
def classify_room(aspect_ratio):
    if aspect_ratio == (16, 9) or aspect_ratio == (19, 6):
        return "Hallway"
    elif aspect_ratio[0] < 8 and aspect_ratio[1] < 8:
        return "Door"
    else:
        return "Room"

# Function to generate a layout
def generate_dungeon_map(image_files):
    dungeon = {"Hallways": [], "Doors": [], "Rooms": []}

    for img_file in image_files:
        img_path = os.path.join(map_dir, img_file)
        aspect_ratio = calculate_aspect_ratio(img_path)
        room_type = classify_room(aspect_ratio)

        if room_type == "Hallway":
            dungeon["Hallways"].append(img_file)
        elif room_type == "Door":
            dungeon["Doors"].append(img_file)
        else:
            dungeon["Rooms"].append(img_file)

    # Add logic to connect rooms, hallways, and doors
    layout = {}
    if dungeon["Hallways"]:
        for i, hallway in enumerate(dungeon["Hallways"]):
            layout[f"Hallway {i+1}"] = {"type": "Hallway", "connected_to": []}
            if dungeon["Rooms"]:
                room = dungeon["Rooms"].pop(0)
                layout[f"Hallway {i+1}"]["connected_to"].append(room)
            if dungeon["Doors"]:
                door = dungeon["Doors"].pop(0)
                layout[f"Hallway {i+1}"]["connected_to"].append(door)

    return layout, dungeon

# Streamlit App
st.title("Dynamic Dungeon Map Generator")
st.write("Automatically generates dungeon maps by analyzing PNG images in a directory.")

# Directory for images
map_dir = "maps"  # Replace with the actual directory path

# Scan the directory for .png files
if os.path.exists(map_dir):
    image_files = [f for f in os.listdir(map_dir) if f.endswith(".png")]

    if image_files:
        st.subheader("Classified Rooms")
        layout, dungeon = generate_dungeon_map(image_files)

        st.write("### Hallways")
        st.write(", ".join(dungeon["Hallways"]) if dungeon["Hallways"] else "No hallways found.")

        st.write("### Doors")
        st.write(", ".join(dungeon["Doors"]) if dungeon["Doors"] else "No doors found.")

        st.write("### Rooms")
        st.write(", ".join(dungeon["Rooms"]) if dungeon["Rooms"] else "No rooms found.")

        st.subheader("Dungeon Layout")
        for key, value in layout.items():
            st.write(f"{key}: {value}")

    else:
        st.write("No PNG files found in the specified directory.")
else:
    st.write("The specified directory does not exist. Please check the path.")

# File upload option
st.sidebar.title("Options")
uploaded_file = st.sidebar.file_uploader("Upload a PNG file", type="png")

if uploaded_file:
    # Save uploaded file to the directory
    with open(os.path.join(map_dir, uploaded_file.name), "wb") as f:
        f.write(uploaded_file.getbuffer())
    st.sidebar.success("File uploaded successfully! Refresh the app to include it in the dungeon map.")

# Placeholder for visualization
st.subheader("Visual Representation")
st.write("A feature to visualize the map will be added soon.")