"""initial: threads and messages

Revision ID: e7199587be4b
Revises: 
Create Date: 2026-04-23 10:03:23.691401

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision: str = 'e7199587be4b'
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:
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('threads',
    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
    sa.Column('name', sa.String(length=200), nullable=False),
    sa.Column('user_id', sa.Integer(), nullable=True),
    sa.Column('agent_config_id', sa.Integer(), nullable=True),
    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
    sa.Column('updated_at', sa.DateTime(timezone=True), nullable=False),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_index(op.f('ix_threads_agent_config_id'), 'threads', ['agent_config_id'], unique=False)
    op.create_index(op.f('ix_threads_user_id'), 'threads', ['user_id'], unique=False)
    op.create_table('messages',
    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
    sa.Column('thread_id', sa.Integer(), nullable=False),
    sa.Column('role', sa.String(length=20), nullable=False),
    sa.Column('text', sa.Text(), nullable=False),
    sa.Column('sources_json', sa.Text(), nullable=True),
    sa.Column('assembled_prompt', sa.Text(), nullable=True),
    sa.Column('created_at', sa.DateTime(timezone=True), nullable=False),
    sa.ForeignKeyConstraint(['thread_id'], ['threads.id'], ondelete='CASCADE'),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_index(op.f('ix_messages_thread_id'), 'messages', ['thread_id'], unique=False)
    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_index(op.f('ix_messages_thread_id'), table_name='messages')
    op.drop_table('messages')
    op.drop_index(op.f('ix_threads_user_id'), table_name='threads')
    op.drop_index(op.f('ix_threads_agent_config_id'), table_name='threads')
    op.drop_table('threads')
    # ### end Alembic commands ###