"""Migration for users

Revision ID: auto
Revises: None
Create Date: auto
"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

# revision identifiers, used by Alembic.
revision = 'auto'
down_revision = None
branch_labels = None
depends_on = None

def upgrade() -> None:
    op.create_table(
        'users',
        sa.Column('id', postgresql.UUID(as_uuid=True), primary_key=True, nullable=False),
        sa.Column('username', sa.String(100), nullable=False, unique=True),
        sa.Column('email', sa.String(255), nullable=False, unique=True),
        sa.Column('password_hash', sa.String(255), nullable=False),
        sa.Column('first_name', sa.String(100), nullable=False),
        sa.Column('last_name', sa.String(100), nullable=False),
        sa.Column('specialty', sa.String(100), nullable=True),
        sa.Column('npi', sa.String(10), nullable=True),
        sa.Column('last_login_at', sa.DateTime(timezone=True), nullable=True),
        sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP'), nullable=False),
        sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP'), onupdate=sa.text('CURRENT_TIMESTAMP'), nullable=False),
    )

    op.create_index(
        'idx_users_username',
        'users',
        ['username'],
        unique=True
    )
    op.create_index(
        'idx_users_email',
        'users',
        ['email'],
        unique=True
    )
    op.create_index(
        'idx_users_npi',
        'users',
        ['npi'],
        
    )
    op.create_index(
        'idx_users_role_is_active',
        'users',
        ['role', 'is_active'],
        
    )

def downgrade() -> None:

    op.drop_index('idx_users_username', table_name='users')
    op.drop_index('idx_users_email', table_name='users')
    op.drop_index('idx_users_npi', table_name='users')
    op.drop_index('idx_users_role_is_active', table_name='users')

    op.drop_table('users')