"""Initial migration

Revision ID: 7ac28bbbc5ee
Revises: 
Create Date: 2025-12-02 00:26:38.350265

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision: str = '7ac28bbbc5ee'
down_revision: Union[str, Sequence[str], None] = None
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    """Upgrade schema."""
    # Create users table
    op.create_table(
        'users',
        sa.Column('user_id', sa.Integer(), nullable=False),
        sa.Column('username', sa.String(length=255), nullable=True),
        sa.Column('first_name', sa.String(length=255), nullable=True),
        sa.Column('last_name', sa.String(length=255), nullable=True),
        sa.Column('is_admin', sa.Boolean(), nullable=True),
        sa.Column('is_blocked', sa.Boolean(), nullable=True),
        sa.Column('created_at', sa.DateTime(), nullable=True),
        sa.Column('updated_at', sa.DateTime(), nullable=True),
        sa.PrimaryKeyConstraint('user_id', name=op.f('pk_users')),
        sa.UniqueConstraint('user_id', name=op.f('uq_users_user_id'))
    )
    op.create_index(op.f('ix_users_user_id'), 'users', ['user_id'], unique=False)
    
    # Create tasks table
    op.create_table(
        'tasks',
        sa.Column('id', sa.BigInteger(), nullable=False, autoincrement=True),
        sa.Column('user_id', sa.Integer(), nullable=False),
        sa.Column('task_type', sa.String(length=50), nullable=False),
        sa.Column('status', sa.String(length=50), nullable=True),
        sa.Column('url', sa.Text(), nullable=True),
        sa.Column('file_path', sa.String(length=500), nullable=True),
        sa.Column('progress', sa.Integer(), nullable=True),
        sa.Column('error_message', sa.String(1000), nullable=True),
        sa.Column('created_at', sa.DateTime(), nullable=True),
        sa.Column('updated_at', sa.DateTime(), nullable=True),
        sa.Column('completed_at', sa.DateTime(), nullable=True),
        sa.ForeignKeyConstraint(['user_id'], ['users.user_id'], name=op.f('fk_tasks_user_id_users')),
        sa.PrimaryKeyConstraint('id', name=op.f('pk_tasks'))
    )
    op.create_index(op.f('ix_tasks_created_at'), 'tasks', ['created_at'], unique=False)
    op.create_index(op.f('ix_tasks_status'), 'tasks', ['status'], unique=False)
    op.create_index(op.f('ix_tasks_user_id'), 'tasks', ['user_id'], unique=False)
    
    # Create downloads table
    op.create_table(
        'downloads',
        sa.Column('id', sa.Integer(), nullable=False, autoincrement=True),
        sa.Column('task_id', sa.BigInteger(), nullable=False),
        sa.Column('url', sa.Text(), nullable=False),
        sa.Column('download_type', sa.String(length=50), nullable=False),
        sa.Column('file_path', sa.String(length=500), nullable=True),
        sa.Column('file_size', sa.Integer(), nullable=True),
        sa.Column('duration', sa.Integer(), nullable=True),
        sa.Column('created_at', sa.DateTime(), nullable=True),
        sa.ForeignKeyConstraint(['task_id'], ['tasks.id'], name=op.f('fk_downloads_task_id_tasks')),
        sa.PrimaryKeyConstraint('id', name=op.f('pk_downloads'))
    )
    op.create_index(op.f('ix_downloads_id'), 'downloads', ['id'], unique=False)
    
    # Create otp_codes table
    op.create_table(
        'otp_codes',
        sa.Column('id', sa.Integer(), nullable=False, autoincrement=True),
        sa.Column('user_id', sa.Integer(), nullable=False),
        sa.Column('code', sa.String(length=6), nullable=False),
        sa.Column('expires_at', sa.DateTime(), nullable=False),
        sa.Column('used', sa.Boolean(), nullable=True),
        sa.Column('created_at', sa.DateTime(), nullable=True),
        sa.ForeignKeyConstraint(['user_id'], ['users.user_id'], name=op.f('fk_otp_codes_user_id_users')),
        sa.PrimaryKeyConstraint('id', name=op.f('pk_otp_codes'))
    )
    op.create_index(op.f('ix_otp_codes_code'), 'otp_codes', ['code'], unique=False)
    op.create_index(op.f('ix_otp_codes_expires_at'), 'otp_codes', ['expires_at'], unique=False)
    op.create_index(op.f('ix_otp_codes_id'), 'otp_codes', ['id'], unique=False)
    op.create_index(op.f('ix_otp_codes_used'), 'otp_codes', ['used'], unique=False)
    op.create_index(op.f('ix_otp_codes_user_id'), 'otp_codes', ['user_id'], unique=False)


def downgrade() -> None:
    """Downgrade schema."""
    # Drop tables in reverse order (respecting foreign key constraints)
    op.drop_index(op.f('ix_otp_codes_user_id'), table_name='otp_codes')
    op.drop_index(op.f('ix_otp_codes_used'), table_name='otp_codes')
    op.drop_index(op.f('ix_otp_codes_id'), table_name='otp_codes')
    op.drop_index(op.f('ix_otp_codes_expires_at'), table_name='otp_codes')
    op.drop_index(op.f('ix_otp_codes_code'), table_name='otp_codes')
    op.drop_table('otp_codes')
    
    op.drop_index(op.f('ix_downloads_id'), table_name='downloads')
    op.drop_table('downloads')
    
    op.drop_index(op.f('ix_tasks_user_id'), table_name='tasks')
    op.drop_index(op.f('ix_tasks_status'), table_name='tasks')
    op.drop_index(op.f('ix_tasks_created_at'), table_name='tasks')
    op.drop_table('tasks')
    
    op.drop_index(op.f('ix_users_user_id'), table_name='users')
    op.drop_table('users')