from flask import Flask, render_template, request, redirect, url_for

app = Flask(__name__)

# Home page (index.html)
@app.route('/')
def home():
    return render_template('index.html')

# Upload page
@app.route('/upload.html')
def upload_page():
    return render_template('upload.html')

# File upload route
@app.route('/upload', methods=['POST'])
def upload_file():
    if 'file' not in request.files:
        return 'No file part'
    file = request.files['file']
    if file.filename == '':
        return 'No selected file'
    # After upload, redirect to emulator page
    return redirect(url_for('emulator'))

# Emulator page with iframe
@app.route('/emulator.html')
def emulator():
    return render_template('emulator.html')

# 404 Error handler (for no internet or invalid routes)
@app.errorhandler(404)
def not_found(error):
    return render_template('error.html'), 404

# Android and iOS redirection
@app.route('/check-device')
def check_device():
    user_agent = request.headers.get('User-Agent').lower()

    if "android" in user_agent:
        return redirect('/android')
    elif "iphone" in user_agent or "ipad" in user_agent:
        return redirect('/ios')
    else:
        return redirect('/windows')

# Android version (simple redirect)
@app.route('/android')
def android():
    return render_template('android.html')

# iOS version (simple redirect)
@app.route('/ios')
def ios():
    return render_template('ios.html')

# Windows version
@app.route('/windows')
def windows():
    return render_template('windows.html')

if __name__ == '__main__':
    app.run(debug=True)