#!/usr/bin/env python3
import json
from datetime import datetime

from sqlalchemy import create_engine, Column, Integer, String, Float, DateTime, ForeignKey, Text
from sqlalchemy.orm import declarative_base, relationship, sessionmaker

# Definiere dieselben Modelle, wie im Bundle-Erfassungsskript:
Base = declarative_base()

class Bundle(Base):
    __tablename__ = 'bundles'
    id = Column(Integer, primary_key=True)
    machine_name = Column(String, unique=True)
    human_name = Column(String)
    current_version_id = Column(Integer, ForeignKey('bundle_versions.id'))
    
    current_version = relationship("BundleVersion", uselist=False, foreign_keys=[current_version_id])
    versions = relationship("BundleVersion", back_populates="bundle", foreign_keys='BundleVersion.bundle_id')
    sales_history = relationship("BundleSalesHistory", back_populates="bundle")

class BundleVersion(Base):
    __tablename__ = 'bundle_versions'
    id = Column(Integer, primary_key=True)
    bundle_id = Column(Integer, ForeignKey('bundles.id'))
    version_hash = Column(String)
    version_data = Column(Text)  # als JSON-String
    timestamp = Column(DateTime, default=datetime.utcnow)
    
    bundle = relationship("Bundle", back_populates="versions")

class BundleSalesHistory(Base):
    __tablename__ = 'bundle_sales_history'
    id = Column(Integer, primary_key=True)
    bundle_id = Column(Integer, ForeignKey('bundles.id'))
    bundles_sold = Column(Float)
    timestamp = Column(DateTime, default=datetime.utcnow)
    
    bundle = relationship("Bundle", back_populates="sales_history")

def main():
    # Verbindung zur vorhandenen SQLite-Datenbank
    engine = create_engine('sqlite:///bundles.db')
    Session = sessionmaker(bind=engine)
    session = Session()
    
    # Alle Bundles abfragen
    bundles = session.query(Bundle).all()
    if not bundles:
        print("Die Datenbank enthält noch keine Bundles.")
        return

    for bundle in bundles:
        print("---------------------------------------------------")
        print(f"Bundle-ID: {bundle.id}")
        print(f"Machine Name: {bundle.machine_name}")
        print(f"Human Name: {bundle.human_name}")
        if bundle.current_version:
            print(f"Aktuelle Version (ID): {bundle.current_version.id}")
            print(f"Version Hash: {bundle.current_version.version_hash}")
            try:
                version_info = json.loads(bundle.current_version.version_data)
                # Optional: gebe z. B. den 'human_name' oder weitere Felder aus
                print(f"Version-Daten (gekürzt): {json.dumps(version_info, indent=2)[:300]} ...")
            except Exception:
                print("Version-Daten (roher Text):")
                print(bundle.current_version.version_data)
            print(f"Letzte Aktualisierung: {bundle.current_version.timestamp}")
        else:
            print("Keine Version hinterlegt.")

        # Alle Versionen anzeigen
        print("\nHistorische Versionen:")
        for version in bundle.versions:
            print(f"  Version-ID: {version.id}, Timestamp: {version.timestamp}, Hash: {version.version_hash}")

        # Verkaufszahlen anzeigen
        print("\nVerkaufshistorie:")
        if bundle.sales_history:
            for sale in bundle.sales_history:
                print(f"  {sale.timestamp}: {sale.bundles_sold} verkauft")
        else:
            print("  Keine Verkaufsdaten vorhanden.")
    print("---------------------------------------------------")

if __name__ == "__main__":
    main()