Spaces:
Sleeping
Sleeping
File size: 3,407 Bytes
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# app.py
from flask import Flask, send_from_directory, jsonify, request
import os
import json
import errno
app = Flask(__name__)
# Directory to store settings
SETTINGS_DIR = "settings"
# Ensure the settings directory exists and has the correct permissions
try:
if not os.path.exists(SETTINGS_DIR):
os.makedirs(SETTINGS_DIR, mode=0o775)
os.chmod(SETTINGS_DIR, 0o775)
except OSError as e:
print(f"Error setting up settings directory: {e}")
# Real-world simulation parameters (unscaled)
simulation_params = {
"sun": {
"mass": 1.989e30, # Real mass in kg
"position": [0, 0, 0],
"orbital_velocity": 0, # Sun is stationary
},
"earth": {
"mass": 5.972e24, # Real mass in kg
"position": [149.6e6, 0, 0], # 1 AU in km
"orbital_velocity": 29.8, # Real orbital velocity in km/s
},
"mars": {
"mass": 6.417e23, # Real mass in kg
"position": [227.9e6, 0, 0], # 1.52 AU in km
"orbital_velocity": 24.1, # Real orbital velocity in km/s
},
"fluid_speed": 0.1,
"fluid_friction": 0.9,
"fluid_deflection": 0.1,
}
# Serve the frontend
@app.route('/')
def serve_index():
return send_from_directory('static', 'index.html')
# Serve static files (CSS, JS)
@app.route('/static/<path:path>')
def serve_static(path):
return send_from_directory('static', path)
# API to get simulation parameters
@app.route('/api/params', methods=['GET'])
def get_params():
return jsonify(simulation_params)
# API to update simulation parameters
@app.route('/api/params', methods=['POST'])
def update_params():
global simulation_params
data = request.get_json()
simulation_params.update(data)
return jsonify({"status": "success", "params": simulation_params})
# API to save settings to a JSON file
@app.route('/api/save', methods=['POST'])
def save_settings():
try:
filename = os.path.join(SETTINGS_DIR, "settings.json")
with open(filename, 'w') as f:
json.dump(simulation_params, f, indent=4)
return jsonify({"status": "success", "message": "Settings saved successfully"})
except PermissionError as e:
return jsonify({"status": "error", "message": "Permission denied: Unable to save settings. Please check directory permissions."}), 500
except Exception as e:
return jsonify({"status": "error", "message": f"Error saving settings: {str(e)}"}), 500
# API to load settings from a JSON file
@app.route('/api/load', methods=['GET'])
def load_settings():
global simulation_params
try:
filename = os.path.join(SETTINGS_DIR, "settings.json")
if os.path.exists(filename):
with open(filename, 'r') as f:
simulation_params = json.load(f)
return jsonify({"status": "success", "params": simulation_params})
else:
return jsonify({"status": "error", "message": "No saved settings found"}), 404
except PermissionError as e:
return jsonify({"status": "error", "message": "Permission denied: Unable to load settings. Please check directory permissions."}), 500
except Exception as e:
return jsonify({"status": "error", "message": f"Error loading settings: {str(e)}"}), 500
if __name__ == '__main__':
port = int(os.environ.get('PORT', 7860)) # Default port for Hugging Face Spaces
app.run(host='0.0.0.0', port=port) |