v2.0: 3-Raum-System - Hauptraum, Saal A, Saal B mit 18 Tischen, Raum-Buchungen, API-Doku
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Peter
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#!/usr/bin/env python3
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"""Datenbank-Modelle für Reservierungssystem"""
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import sqlite3
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import json
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from datetime import datetime, timedelta
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from contextlib import contextmanager
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DB_PATH = "/data/reservations.db"
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@contextmanager
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def get_db():
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conn = sqlite3.connect(DB_PATH)
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conn.row_factory = sqlite3.Row
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try:
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yield conn
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conn.commit()
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except:
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conn.rollback()
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raise
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finally:
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conn.close()
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def init_db():
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"""Datenbank initialisieren"""
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with get_db() as db:
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db.executescript('''
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-- Gäste-Adressbuch
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CREATE TABLE IF NOT EXISTS guests (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL,
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phone TEXT,
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email TEXT UNIQUE,
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preferred_table_id INTEGER,
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notes TEXT,
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visit_count INTEGER DEFAULT 0,
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last_visit DATE,
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP
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);
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-- Räume
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CREATE TABLE IF NOT EXISTS rooms (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL,
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capacity INTEGER,
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color TEXT DEFAULT '#3498db'
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);
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-- Bereiche innerhalb von Räumen
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CREATE TABLE IF NOT EXISTS areas (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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room_id INTEGER NOT NULL,
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name TEXT NOT NULL,
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available_from TIME DEFAULT '10:00',
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available_to TIME DEFAULT '23:00',
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FOREIGN KEY (room_id) REFERENCES rooms(id) ON DELETE CASCADE
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);
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-- Tische
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CREATE TABLE IF NOT EXISTS tables (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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area_id INTEGER NOT NULL,
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name TEXT NOT NULL,
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x INTEGER DEFAULT 0,
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y INTEGER DEFAULT 0,
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width INTEGER DEFAULT 100,
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height INTEGER DEFAULT 100,
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shape TEXT DEFAULT 'rect' CHECK(shape IN ('rect', 'circle', 'oval')),
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seats INTEGER DEFAULT 4,
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is_combinable BOOLEAN DEFAULT 1,
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is_active BOOLEAN DEFAULT 1,
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FOREIGN KEY (area_id) REFERENCES areas(id) ON DELETE CASCADE
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);
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-- Tisch-Kombinationen (Zusammenlegungen)
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CREATE TABLE IF NOT EXISTS table_combinations (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL,
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parent_table_id INTEGER NOT NULL,
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child_table_ids TEXT NOT NULL, -- JSON-Array
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total_seats INTEGER,
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is_active BOOLEAN DEFAULT 1,
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FOREIGN KEY (parent_table_id) REFERENCES tables(id) ON DELETE CASCADE
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);
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-- Reservierungen
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CREATE TABLE IF NOT EXISTS reservations (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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booking_number TEXT UNIQUE NOT NULL, -- RES-20250512-001
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guest_id INTEGER,
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table_ids TEXT NOT NULL, -- JSON-Array
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date DATE NOT NULL,
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time_from TIME NOT NULL,
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time_to TIME,
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guests INTEGER NOT NULL,
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occasion TEXT,
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notes TEXT,
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source TEXT DEFAULT 'email' CHECK(source IN ('email', 'phone', 'web', 'walk-in')),
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phone_caller_name TEXT, -- Für Telefon-Buchungen
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status TEXT DEFAULT 'confirmed' CHECK(status IN ('confirmed', 'pending', 'cancelled', 'completed')),
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email_thread_id TEXT,
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created_by TEXT,
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (guest_id) REFERENCES guests(id) ON DELETE SET NULL
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);
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-- Änderungshistorie
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CREATE TABLE IF NOT EXISTS reservation_history (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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reservation_id INTEGER NOT NULL,
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booking_number TEXT NOT NULL,
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changed_field TEXT NOT NULL,
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old_value TEXT,
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new_value TEXT,
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changed_by TEXT,
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changed_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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reason TEXT,
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FOREIGN KEY (reservation_id) REFERENCES reservations(id) ON DELETE CASCADE
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);
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-- E-Mails
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CREATE TABLE IF NOT EXISTS emails (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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message_id TEXT UNIQUE NOT NULL,
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thread_id TEXT,
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subject TEXT,
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body TEXT,
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sender TEXT,
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sender_email TEXT,
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parsed_json TEXT, -- JSON mit extrahierten Daten
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confidence REAL,
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action_type TEXT CHECK(action_type IN ('new', 'modification', 'cancellation', 'unknown')),
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status TEXT DEFAULT 'new' CHECK(status IN ('new', 'auto_processed', 'needs_review', 'confirmed', 'failed')),
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linked_reservation_id INTEGER,
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booking_number_found TEXT, -- Extrahierte Buchungsnummer
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auto_reply_sent BOOLEAN DEFAULT 0,
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auto_reply_status TEXT,
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received_at DATETIME,
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processed_at DATETIME,
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FOREIGN KEY (linked_reservation_id) REFERENCES reservations(id) ON DELETE SET NULL
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);
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-- Indizes
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CREATE INDEX IF NOT EXISTS idx_reservations_date ON reservations(date);
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CREATE INDEX IF NOT EXISTS idx_reservations_booking ON reservations(booking_number);
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CREATE INDEX IF NOT EXISTS idx_reservations_guest ON reservations(guest_id);
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CREATE INDEX IF NOT EXISTS idx_reservations_status ON reservations(status);
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CREATE INDEX IF NOT EXISTS idx_emails_thread ON emails(thread_id);
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CREATE INDEX IF NOT EXISTS idx_emails_status ON emails(status);
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CREATE INDEX IF NOT EXISTS idx_emails_booking ON emails(booking_number_found);
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CREATE INDEX IF NOT EXISTS idx_history_booking ON reservation_history(booking_number);
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-- Trigger für updated_at
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CREATE TRIGGER IF NOT EXISTS update_reservations_timestamp
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AFTER UPDATE ON reservations
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BEGIN
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UPDATE reservations SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
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END;
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''')
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def generate_booking_number(date=None):
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"""Generiere Buchungsnummer RES-YYYY-MM-DD-XXX"""
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if date is None:
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date = datetime.now()
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date_str = date.strftime('%Y-%m-%d')
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with get_db() as db:
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# Zähle bestehende Reservierungen an diesem Tag
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count = db.execute(
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"SELECT COUNT(*) FROM reservations WHERE date = ?",
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(date_str,)
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).fetchone()[0]
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return f"RES-{date_str}-{count + 1:03d}"
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def log_change(db, reservation_id, booking_number, field, old_val, new_val, reason=None):
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"""Änderung in Historie speichern"""
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db.execute('''
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INSERT INTO reservation_history
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(reservation_id, booking_number, changed_field, old_value, new_value, reason)
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VALUES (?, ?, ?, ?, ?, ?)
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''', (reservation_id, booking_number, field, str(old_val), str(new_val), reason))
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