import asyncio
from flask import Flask, render_template, request, send_file, jsonify
from imaginepy import AsyncImagine, Style, Ratio
import os

app = Flask(__name__)

@app.route('/')
def index():
    return render_template('index.html')

@app.route('/generate', methods=['POST'])
async def generate_image():
    prompt = request.form['prompt']
    style = request.form['style']
    ratio = request.form['ratio']

    try:
        imagine = AsyncImagine()

        img_data = await imagine.sdprem(
            prompt=prompt,
            style=Style[style],
            ratio=Ratio[ratio]
        )

        if img_data is None:
            return "An error occurred while generating the image.", 500

        img_data = await imagine.upscale(image=img_data)

        if img_data is None:
            return "An error occurred while upscaling the image.", 500

        image_path = os.path.join(app.root_path, "static", "example.jpeg")
        with open(image_path, mode="wb") as img_file:
            img_file.write(img_data)

        return render_template('output.html')

    except Exception as e:
        return f"An error occurred: {e}", 500

    finally:
        await imagine.close()

@app.route('/api/generate', methods=['POST'])
async def api_generate_image():
    data = request.get_json()
    prompt = data['prompt']
    style = data['style']
    ratio = data['ratio']

    try:
        imagine = AsyncImagine()

        img_data = await imagine.sdprem(
            prompt=prompt,
            style=Style[style],
            ratio=Ratio[ratio]
        )

        if img_data is None:
            return jsonify({'error': "An error occurred while generating the image."}), 500

        img_data = await imagine.upscale(image=img_data)

        if img_data is None:
            return jsonify({'error': "An error occurred while upscaling the image."}), 500

        image_path = os.path.join(app.root_path, "generated.jpeg")
        with open(image_path, mode="wb") as img_file:
            img_file.write(img_data)

        return send_file(image_path, mimetype='image/jpeg', as_attachment=True)

    except Exception as e:
        return jsonify({'error': f"An error occurred: {e}"}), 500

    finally:
        await imagine.close()

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=7860)