"""Initial schema

Revision ID: 001
Revises:
Create Date: 2025-12-31 14:00:00.000000

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision: str = '001'
down_revision: Union[str, None] = None
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    """Create initial database schema."""
    # Create users table
    op.create_table(
        'users',
        sa.Column('id', sa.String(length=36), nullable=False),
        sa.Column('email', sa.String(length=255), nullable=False),
        sa.Column('password_hash', sa.String(length=255), nullable=False),
        sa.Column('is_active', sa.Boolean(), nullable=False),
        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'), nullable=False),
        sa.PrimaryKeyConstraint('id')
    )
    op.create_index(op.f('ix_users_email'), 'users', ['email'], unique=True)

    # Create folders table
    op.create_table(
        'folders',
        sa.Column('id', sa.String(length=36), nullable=False),
        sa.Column('user_id', sa.String(length=36), nullable=False),
        sa.Column('name', sa.String(length=255), nullable=False),
        sa.Column('parent_folder_id', sa.String(length=36), nullable=True),
        sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP'), nullable=False),
        sa.PrimaryKeyConstraint('id')
    )
    op.create_index(op.f('ix_folders_user_id'), 'folders', ['user_id'], unique=False)
    op.create_index(op.f('ix_folders_parent_folder_id'), 'folders', ['parent_folder_id'], unique=False)

    # Create assets table
    op.create_table(
        'assets',
        sa.Column('id', sa.String(length=36), nullable=False),
        sa.Column('user_id', sa.String(length=36), nullable=False),
        sa.Column('folder_id', sa.String(length=36), nullable=True),
        sa.Column('type', sa.Enum('photo', 'video', name='assettype'), nullable=False),
        sa.Column('status', sa.Enum('uploading', 'ready', 'failed', name='assetstatus'), nullable=False),
        sa.Column('original_filename', sa.String(length=512), nullable=False),
        sa.Column('content_type', sa.String(length=100), nullable=False),
        sa.Column('size_bytes', sa.BigInteger(), nullable=False),
        sa.Column('sha256', sa.String(length=64), nullable=True),
        sa.Column('captured_at', sa.DateTime(timezone=True), nullable=True),
        sa.Column('width', sa.Integer(), nullable=True),
        sa.Column('height', sa.Integer(), nullable=True),
        sa.Column('duration_sec', sa.Float(), nullable=True),
        sa.Column('storage_key_original', sa.String(length=512), nullable=False),
        sa.Column('storage_key_thumb', sa.String(length=512), nullable=True),
        sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP'), nullable=False),
        sa.PrimaryKeyConstraint('id')
    )
    op.create_index(op.f('ix_assets_user_id'), 'assets', ['user_id'], unique=False)
    op.create_index(op.f('ix_assets_folder_id'), 'assets', ['folder_id'], unique=False)
    op.create_index(op.f('ix_assets_status'), 'assets', ['status'], unique=False)
    op.create_index(op.f('ix_assets_created_at'), 'assets', ['created_at'], unique=False)

    # Create shares table
    op.create_table(
        'shares',
        sa.Column('id', sa.String(length=36), nullable=False),
        sa.Column('owner_user_id', sa.String(length=36), nullable=False),
        sa.Column('asset_id', sa.String(length=36), nullable=True),
        sa.Column('album_id', sa.String(length=36), nullable=True),
        sa.Column('token', sa.String(length=64), nullable=False),
        sa.Column('expires_at', sa.DateTime(timezone=True), nullable=True),
        sa.Column('password_hash', sa.String(length=255), nullable=True),
        sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('CURRENT_TIMESTAMP'), nullable=False),
        sa.Column('revoked_at', sa.DateTime(timezone=True), nullable=True),
        sa.PrimaryKeyConstraint('id')
    )
    op.create_index(op.f('ix_shares_owner_user_id'), 'shares', ['owner_user_id'], unique=False)
    op.create_index(op.f('ix_shares_asset_id'), 'shares', ['asset_id'], unique=False)
    op.create_index(op.f('ix_shares_album_id'), 'shares', ['album_id'], unique=False)
    op.create_index(op.f('ix_shares_token'), 'shares', ['token'], unique=True)
    op.create_index(op.f('ix_shares_revoked_at'), 'shares', ['revoked_at'], unique=False)


def downgrade() -> None:
    """Drop all tables."""
    op.drop_table('shares')
    op.drop_table('assets')
    op.drop_table('folders')
    op.drop_table('users')