"""Create pdf_templates table with locale support, seed defaults, add template_id to generated_pdfs

Revision ID: 007
Revises: 006
Create Date: 2026-03-19

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import UUID

revision: str = "007"
down_revision: Union[str, None] = "006"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "pdf_templates",
        sa.Column("id", UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
        sa.Column("name", sa.String(100), nullable=False),
        sa.Column("locale", sa.String(10), nullable=False, server_default="en"),
        sa.Column("description", sa.Text, nullable=True),
        sa.Column("html_content", sa.Text, nullable=False),
        sa.Column("is_default", sa.Boolean, nullable=False, server_default=sa.text("false")),
        sa.Column("is_active", sa.Boolean, nullable=False, server_default=sa.text("true")),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
        sa.UniqueConstraint("name", "locale", name="uq_pdf_templates_name_locale"),
    )

    op.add_column("generated_pdfs", sa.Column(
        "template_id", UUID(as_uuid=True),
        sa.ForeignKey("pdf_templates.id", ondelete="SET NULL"), nullable=True,
    ))


def downgrade() -> None:
    op.drop_column("generated_pdfs", "template_id")
    op.drop_table("pdf_templates")