"""
SQLAlchemy-Datenmodelle für lokale RBAC- und Projektzuweisung.

Alle Nutzeridentitäten stammen aus Zitadel (``zitadel_user_id`` = OIDC ``sub``-Claim).
Die lokalen Tabellen regeln nur die Autorisierung – nie die Authentifizierung.

:author:  <Vorname Nachname>
:date:    2026-06-17
:version: 0.1
"""

from datetime import datetime
from .database import db


class User(db.Model):
    __tablename__ = "users"
    zitadel_user_id = db.Column(db.String(128), primary_key=True)
    email = db.Column(db.String(256), nullable=False)
    global_role = db.Column(db.String(64), nullable=False)


class Client(db.Model):
    __tablename__ = "clients"
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(256), nullable=False)
    projects = db.relationship("Project", back_populates="client")


class Project(db.Model):
    __tablename__ = "projects"
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(256), nullable=False)
    client_id = db.Column(db.Integer, db.ForeignKey("clients.id"), nullable=False)
    client = db.relationship("Client", back_populates="projects")
    notes = db.relationship("Note", back_populates="project", order_by="Note.created_at.desc()")


class ProjectMitarbeiterMapping(db.Model):
    __tablename__ = "project_mitarbeiter"
    user_id = db.Column(db.String(128), db.ForeignKey("users.zitadel_user_id"), primary_key=True)
    project_id = db.Column(db.Integer, db.ForeignKey("projects.id"), primary_key=True)


class ProjectKundenMapping(db.Model):
    __tablename__ = "project_kunden"
    user_id = db.Column(db.String(128), db.ForeignKey("users.zitadel_user_id"), primary_key=True)
    project_id = db.Column(db.Integer, db.ForeignKey("projects.id"), primary_key=True)


class Note(db.Model):
    __tablename__ = "notes"
    id = db.Column(db.Integer, primary_key=True)
    text = db.Column(db.Text, nullable=False)
    created_at = db.Column(db.DateTime, default=datetime.utcnow)
    user_id = db.Column(db.String(128), db.ForeignKey("users.zitadel_user_id"), nullable=False)
    project_id = db.Column(db.Integer, db.ForeignKey("projects.id"), nullable=False)
    project = db.relationship("Project", back_populates="notes")