Initial commit: Tablet lending system with user-tablet many-to-many relationship
- Database schema: tablets, users, loans (junction table) - CLI app: minimal_app.py - Web apps: app.py (Flask), simple_app.py (http.server) - Features: loan management, search, user loans view, project notes - Git structure: CONTRIBUTING.md, .gitignore Generated by Mistral Vibe. Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
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182
working_server.py
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182
working_server.py
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#!/usr/bin/env python3
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"""
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Working web server for tablet management system
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"""
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from http.server import HTTPServer, BaseHTTPRequestHandler
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import sqlite3
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from urllib.parse import urlparse, parse_qs
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import json
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class TabletHandler(BaseHTTPRequestHandler):
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def _set_headers(self, status=200, content_type='text/html'):
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self.send_response(status)
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self.send_header('Content-type', content_type)
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self.end_headers()
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def do_GET(self):
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parsed = urlparse(self.path)
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if parsed.path == '/':
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self._serve_main_page()
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elif parsed.path == '/api/tablets':
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self._serve_tablets()
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elif parsed.path == '/api/users':
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self._serve_users()
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elif parsed.path == '/api/loans':
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self._serve_loans()
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else:
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self._set_headers(404)
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self.wfile.write(b'404 Not Found')
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def _serve_main_page(self):
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html = '''<!DOCTYPE html>
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<html>
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<head>
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<title>Tablet Management System</title>
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<style>
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body { font-family: Arial, sans-serif; margin: 20px; }
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h1 { color: #4CAF50; }
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.container { max-width: 800px; margin: 0 auto; }
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.section { margin-bottom: 20px; padding: 15px; background: #f5f5f5; border-radius: 5px; }
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table { width: 100%; border-collapse: collapse; }
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th, td { padding: 8px; text-align: left; border-bottom: 1px solid #ddd; }
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th { background-color: #4CAF50; color: white; }
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.btn { padding: 8px 16px; background-color: #4CAF50; color: white; text-decoration: none; border-radius: 4px; }
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.btn-danger { background-color: #f44336; }
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</style>
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</head>
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<body>
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<div class="container">
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<h1>Tablet Management System</h1>
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<p>SQLite backend - Port 8000</p>
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<div class="section">
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<h2>Available Tablets</h2>
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<div id="tablets"></div>
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</div>
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<div class="section">
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<h2>Active Loans</h2>
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<div id="loans"></div>
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</div>
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<div class="section">
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<h2>System Info</h2>
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<p>✓ Database: tablets.db</p>
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<p>✓ Status: Operational</p>
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<p>Port: 8000</p>
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</div>
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</div>
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<script>
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// Load data from API
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fetch('/api/tablets')
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.then(r => r.json())
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.then(data => {
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let html = '<table><thead><tr><th>ID</th><th>Brand</th><th>Model</th><th>Serial</th><th>Status</th></tr></thead><tbody>';
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data.forEach(tablet => {
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html += `<tr><td>${tablet.id}</td><td>${tablet.brand}</td><td>${tablet.model}</td><td>${tablet.serial_number}</td><td>${tablet.status}</td></tr>`;
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});
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html += '</tbody></table>';
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document.getElementById('tablets').innerHTML = html;
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});
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fetch('/api/loans')
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.then(r => r.json())
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.then(data => {
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let html = '<table><thead><tr><th>ID</th><th>Tablet</th><th>User</th><th>Loan Date</th><th>Status</th></tr></thead><tbody>';
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data.forEach(loan => {
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html += `<tr><td>${loan.id}</td><td>${loan.tablet}</td><td>${loan.user}</td><td>${loan.loan_date}</td><td>${loan.status}</td></tr>`;
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});
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html += '</tbody></table>';
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document.getElementById('loans').innerHTML = html;
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});
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</script>
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</body>
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</html>'''
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self._set_headers()
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self.wfile.write(html.encode('utf-8'))
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def _serve_tablets(self):
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try:
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conn = sqlite3.connect('tablets.db')
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conn.row_factory = sqlite3.Row
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cursor = conn.cursor()
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cursor.execute('SELECT * FROM tablets')
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tablets = [dict(row) for row in cursor.fetchall()]
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conn.close()
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self._set_headers(content_type='application/json')
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self.wfile.write(json.dumps(tablets).encode('utf-8'))
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except Exception as e:
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self._set_headers(500)
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self.wfile.write(json.dumps({'error': str(e)}).encode('utf-8'))
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def _serve_users(self):
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try:
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conn = sqlite3.connect('tablets.db')
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conn.row_factory = sqlite3.Row
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cursor = conn.cursor()
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cursor.execute('SELECT * FROM users')
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users = [dict(row) for row in cursor.fetchall()]
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conn.close()
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self._set_headers(content_type='application/json')
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self.wfile.write(json.dumps(users).encode('utf-8'))
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except Exception as e:
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self._set_headers(500)
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self.wfile.write(json.dumps({'error': str(e)}).encode('utf-8'))
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def _serve_loans(self):
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try:
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conn = sqlite3.connect('tablets.db')
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cursor = conn.cursor()
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cursor.execute('''
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SELECT l.id, l.tablet_id, l.user_id, l.loan_date, l.return_date, l.status,
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t.brand || ' ' || t.model as tablet,
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u.name as user
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FROM loans l
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JOIN tablets t ON l.tablet_id = t.id
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JOIN users u ON l.user_id = u.id
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''')
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loans = []
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for row in cursor.fetchall():
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loans.append({
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'id': row[0],
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'tablet_id': row[1],
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'user_id': row[2],
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'loan_date': row[3],
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'return_date': row[4],
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'status': row[5],
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'tablet': row[6],
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'user': row[7]
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})
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conn.close()
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self._set_headers(content_type='application/json')
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self.wfile.write(json.dumps(loans).encode('utf-8'))
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except Exception as e:
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self._set_headers(500)
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self.wfile.write(json.dumps({'error': str(e)}).encode('utf-8'))
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def run_server():
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server_address = ('', 8000)
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httpd = HTTPServer(server_address, TabletHandler)
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print("Tablet Management System - Web Interface")
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print("========================================")
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print("Server running on: http://localhost:8000")
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print("Database: tablets.db (SQLite)")
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print("Press Ctrl+C to stop the server")
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print()
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try:
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httpd.serve_forever()
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except KeyboardInterrupt:
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print("\nServer stopped")
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if __name__ == '__main__':
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run_server()
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