"""Add project templates table

Revision ID: 016
Revises: 015
Create Date: 2026-01-10

Adds project_templates table for storing reusable project configurations
with predefined task statuses and custom fields.
"""
from typing import Sequence, Union
from alembic import op
import sqlalchemy as sa

revision: str = '016'
down_revision: Union[str, None] = '015'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # Create pjctrl_project_templates table
    op.create_table(
        'pjctrl_project_templates',
        sa.Column('id', sa.String(36), primary_key=True),
        sa.Column('name', sa.String(200), nullable=False),
        sa.Column('description', sa.Text, nullable=True),
        sa.Column('owner_id', sa.String(36), sa.ForeignKey('pjctrl_users.id'), nullable=False),
        sa.Column('is_public', sa.Boolean, default=False, nullable=False),
        sa.Column('is_active', sa.Boolean, default=True, nullable=False),
        sa.Column('task_statuses', sa.JSON, nullable=True),
        sa.Column('custom_fields', sa.JSON, nullable=True),
        sa.Column('default_security_level', sa.String(20), default='department', nullable=True),
        sa.Column('created_at', sa.DateTime, server_default=sa.func.now(), nullable=False),
        sa.Column('updated_at', sa.DateTime, server_default=sa.func.now(), onupdate=sa.func.now(), nullable=False),
    )

    # Create indexes
    op.create_index('ix_pjctrl_project_templates_owner_id', 'pjctrl_project_templates', ['owner_id'])
    op.create_index('ix_pjctrl_project_templates_is_public', 'pjctrl_project_templates', ['is_public'])
    op.create_index('ix_pjctrl_project_templates_is_active', 'pjctrl_project_templates', ['is_active'])


def downgrade() -> None:
    op.drop_index('ix_pjctrl_project_templates_is_active', table_name='pjctrl_project_templates')
    op.drop_index('ix_pjctrl_project_templates_is_public', table_name='pjctrl_project_templates')
    op.drop_index('ix_pjctrl_project_templates_owner_id', table_name='pjctrl_project_templates')
    op.drop_table('pjctrl_project_templates')