from flask import Flask, redirect, request, jsonify
import requests
import os
import random

# ... (Your existing code)
app = Flask(__name__)

def check_website_availability(url):
    try:
        response = requests.get(url)
        # 检查响应状态码，2xx表示成功
        return response.status_code // 100 == 2
    except requests.ConnectionError:
        return False

@app.route('/', methods=['GET', 'POST'])
def redirect_to_website():
    if request.method == 'POST':
        # Process POST request and return a link
        url = os.getenv('OPENI_GRADIO_URL')
        server1 = 'https://mlunotebook.openi.org.cn'
        server2 = 'http://cloudbrain1notebook.openi.org.cn'

        url1 = server1 + url + "/"
        url2 = server2 + url + "/"

        options = [url1, f"{url1}sd2/", f"{url1}sd3/", f"{url1}sd4/"]
        selected_url = random.choices(options, weights=[0.25, 0.25, 0.25, 0.25])[0]

        options2 = [url2, f"{url2}sd2/", f"{url2}sd3/", f"{url2}sd4/"]
        selected_url2 = random.choices(options2, weights=[0.25, 0.25, 0.25, 0.25])[0]

        # Check if the URLs are accessible
        if check_website_availability(url1):
            return jsonify({"link": selected_url})
        else:
            return jsonify({"link": selected_url2})

    else:
        # Handle GET requests as before
        url = os.getenv('OPENI_GRADIO_URL')
        server1 = 'https://mlunotebook.openi.org.cn'
        server2 = 'http://cloudbrain1notebook.openi.org.cn'

        url1 = server1 + url + "/"
        url2 = server2 + url + "/"

        options = [f"{url1}sd1/", f"{url1}sd2/", f"{url1}sd3/", f"{url1}sd4/"]
        selected_url = random.choices(options, weights=[0.25, 0.25, 0.25, 0.25])[0]

        options2 = [f"{url1}sd1/", f"{url2}sd2/", f"{url2}sd3/", f"{url2}sd4/"]
        selected_url2 = random.choices(options2, weights=[0.25, 0.25, 0.25, 0.25])[0]

        if check_website_availability(url1):
            return redirect(selected_url)
        else:
            return redirect(selected_url2)

if __name__ == '__main__':
    app.run(debug=False, port=5006)