from __future__ import annotations
from datetime import datetime
from sqlalchemy import String, Boolean, Integer, ForeignKey, UniqueConstraint, DateTime, Text
from sqlalchemy.orm import Mapped, mapped_column, relationship
from app.core.db.common import CommonBase

class User(CommonBase):
    __tablename__ = "users"
    __table_args__ = (UniqueConstraint("email", name="uq_user_email"),)

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    email: Mapped[str] = mapped_column(String(255), index=True)
    full_name: Mapped[str] = mapped_column(String(255), default="")
    password_hash: Mapped[str] = mapped_column(String(255))

    tenant_id: Mapped[int] = mapped_column(ForeignKey("tenants.id"), index=True)
    branch_id: Mapped[int] = mapped_column(ForeignKey("branches.id"), index=True)

    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
    allow_login: Mapped[bool] = mapped_column(Boolean, default=True)
    is_locked: Mapped[bool] = mapped_column(Boolean, default=False)
    locked_at_utc: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
    deleted_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
    must_change_password: Mapped[bool] = mapped_column(Boolean, default=False)
    password_changed_at_utc: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)

    # Phase 7Q.3 - common user profile/personalisation fields.
    # Employee/consultant/client master records remain the source for official data;
    # these fields are used for display, dashboards, client-facing contact cards and branding.
    profile_photo_path: Mapped[str | None] = mapped_column(String(500), nullable=True)
    qualification: Mapped[str | None] = mapped_column(String(200), nullable=True)
    designation: Mapped[str | None] = mapped_column(String(200), nullable=True)
    mobile: Mapped[str | None] = mapped_column(String(30), nullable=True)
    bio: Mapped[str | None] = mapped_column(Text, nullable=True)
    signature_image_path: Mapped[str | None] = mapped_column(String(500), nullable=True)

class LoginAttempt(CommonBase):
    __tablename__ = "login_attempts"
    __table_args__ = (UniqueConstraint("key", name="uq_login_attempt_key"),)

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    key: Mapped[str] = mapped_column(String(255), index=True)  # email|ip
    attempts: Mapped[int] = mapped_column(Integer, default=0)
    locked_until_utc: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
    updated_at_utc: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)