sustanability_scorer.py

import os
from openai import OpenAI
import base64
from pydantic import BaseModel
from PIL import Image
import io
import json
import random


class HouseFeature(BaseModel):
    age_in_years: int
    solar_panel: bool
    green_roof: bool
    is_property: bool


IMAGE_PATH = "house7.png"


# Open the image file and encode it as a base64 string
def encode_image(image, output_format="JPEG"):
    # Resize the image
    image = image.resize((256, 256))

    # Convert the image to bytes
    buffered = io.BytesIO()
    # Save the image in the specified format
    image.save(buffered, format=output_format)
    image_bytes = buffered.getvalue()

    # Encode the image bytes to base64
    base64_encoded_data = base64.b64encode(image_bytes)

    # Convert bytes to string
    base64_encoded_string = base64_encoded_data.decode("utf-8")

    return base64_encoded_string


def openai_completion(base64_image):
    # Initialize OpenAI API key from environment variable
    client = OpenAI(api_key=os.environ.get("OPENAI_API_KEY"))
    MODEL = "gpt-4o-mini"
    response = client.beta.chat.completions.parse(
        model=MODEL,
        messages=[
            {
                "role": "system",
                "content": "You are a house expert who can estimate house's age. Help me identify houses!",
            },
            {
                "role": "user",
                "content": [
                    {
                        "type": "text",
                        "text": "Estimate the house's age and whether it has solar panels.",
                    },
                    {
                        "type": "image_url",
                        "image_url": {"url": f"data:image/jpeg;base64,{base64_image}"},
                    },
                ],
            },
        ],
        max_tokens=300,
        response_format=HouseFeature,
    )

    return response.choices[0].message.content


def sustainability_scorer(house_features: HouseFeature):
    # Calculate sustainability score based on house features, best score 100, lowest 30
    score = 0
    if house_features.is_property:
        if house_features.age_in_years < 10:
            score += 70
        elif house_features.age_in_years < 20:
            score += 65
        elif house_features.age_in_years < 30:
            score += 45
        else:
            score += 25
        if house_features.solar_panel:
            score += 40
        if house_features.green_roof:
            score += 30
        score += random.randint(0, 5)
        # score can't be over 100
        score = min(score, 100)
        if score > 80:
            color = "green"
            feedback = "🌟 Excellent! 🌟"
        elif score > 50:
            color = "orange"
            feedback = "👍 Good!"
        else:
            color = "red"
            feedback = "❗️ Needs Improvement"
        return f"<div class='score_output' style='color: {color};'>{feedback}<br>Sustainability Score: {score}</div>"
    else:
        return "Sorry, I'm unable to identify your house from the picture"