"""System settings model — singleton company master data per tenant."""

from __future__ import annotations

import uuid
from datetime import datetime

from sqlalchemy import DateTime, ForeignKey, Index, Integer, String
from sqlalchemy.dialects.postgresql import JSONB
from sqlalchemy.dialects.postgresql import UUID as PGUUID
from sqlalchemy.orm import Mapped, mapped_column

from app.core.db import Base, TenantMixin


class SystemSettings(Base, TenantMixin):
    """Singleton system settings per tenant — company master data for invoices/quotes."""

    __tablename__ = "system_settings"
    __table_args__ = (
        Index("ix_system_settings_tenant", "tenant_id"),
    )

    id: Mapped[uuid.UUID] = mapped_column(
        PGUUID(as_uuid=True), primary_key=True, default=uuid.uuid4
    )
    company_name: Mapped[str] = mapped_column(String(200), nullable=False)
    company_legal_form: Mapped[str | None] = mapped_column(String(50), nullable=True)
    company_street: Mapped[str] = mapped_column(String(255), nullable=False)
    company_city: Mapped[str] = mapped_column(String(100), nullable=False)
    company_zip: Mapped[str] = mapped_column(String(20), nullable=False)
    company_country: Mapped[str] = mapped_column(String(2), nullable=False)
    tax_number: Mapped[str | None] = mapped_column(String(50), nullable=True)
    vat_id: Mapped[str | None] = mapped_column(String(50), nullable=True)
    iban: Mapped[str | None] = mapped_column(String(34), nullable=True)
    bic: Mapped[str | None] = mapped_column(String(11), nullable=True)
    bank_name: Mapped[str | None] = mapped_column(String(100), nullable=True)
    ceo: Mapped[str | None] = mapped_column(String(100), nullable=True)
    trade_register: Mapped[str | None] = mapped_column(String(100), nullable=True)
    default_currency_id: Mapped[uuid.UUID | None] = mapped_column(
        PGUUID(as_uuid=True), ForeignKey("currencies.id", ondelete="SET NULL"), nullable=True
    )
    default_tax_id: Mapped[uuid.UUID | None] = mapped_column(
        PGUUID(as_uuid=True), ForeignKey("tax_rates.id", ondelete="SET NULL"), nullable=True
    )
    invoice_prefix: Mapped[str] = mapped_column(String(20), nullable=False, default="RE-")
    quote_prefix: Mapped[str] = mapped_column(String(20), nullable=False, default="AN-")
    payment_terms_days: Mapped[int] = mapped_column(Integer, nullable=False, default=14)
    # Theme customization
    theme_primary_color: Mapped[str] = mapped_column(String(20), nullable=False, default="#2563eb")
    theme_accent_color: Mapped[str] = mapped_column(String(20), nullable=False, default="#d946ef")
    theme_font_family: Mapped[str] = mapped_column(String(100), nullable=False, default="Inter")
    theme_border_radius: Mapped[str] = mapped_column(String(20), nullable=False, default="0.5rem")
    # Automation plugin settings (JSONB)
    automation_config: Mapped[dict | None] = mapped_column(JSONB, nullable=True)