"""add ai_call_logs, truth_nodes, user_skill quality/efficiency columns

Revision ID: add_ai_tables
Revises: add_skill_tables
Create Date: 2024-02-24

"""
from alembic import op
import sqlalchemy as sa

revision = 'add_ai_tables'
down_revision = 'add_skill_tables'
branch_labels = None
depends_on = None


def get_uuid():
    import os
    if "sqlite" in os.getenv("DATABASE_URL", ""):
        return sa.CHAR(36)
    from sqlalchemy.dialects.postgresql import UUID
    return UUID(as_uuid=True)


def upgrade():
    uuid_col = get_uuid()

    op.create_table(
        'ai_call_logs',
        sa.Column('id', uuid_col, primary_key=True),
        sa.Column('tenant_id', sa.String(50), nullable=False, index=True),
        sa.Column('function_name', sa.String(100), nullable=False, index=True),
        sa.Column('input_hash', sa.String(64), nullable=True, index=True),
        sa.Column('status', sa.String(20), server_default='success'),
        sa.Column('prompt_tokens', sa.Integer(), server_default='0'),
        sa.Column('completion_tokens', sa.Integer(), server_default='0'),
        sa.Column('total_tokens', sa.Integer(), server_default='0'),
        sa.Column('cost_usd', sa.Float(), server_default='0'),
        sa.Column('latency_ms', sa.Integer(), nullable=True),
        sa.Column('error_message', sa.Text(), nullable=True),
        sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
    )

    op.create_table(
        'truth_nodes',
        sa.Column('id', uuid_col, primary_key=True),
        sa.Column('tenant_id', sa.String(50), nullable=False, index=True),
        sa.Column('title', sa.String(255), nullable=False),
        sa.Column('content', sa.Text(), nullable=False),
        sa.Column('category', sa.String(50), nullable=True),
        sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
        sa.Column('updated_at', sa.DateTime(), server_default=sa.func.now(), onupdate=sa.func.now()),
    )

    op.add_column('user_skill_bindings', sa.Column('quality_score', sa.Float(), server_default='0'))
    op.add_column('user_skill_bindings', sa.Column('efficiency_score', sa.Float(), server_default='0'))


def downgrade():
    op.drop_column('user_skill_bindings', 'efficiency_score')
    op.drop_column('user_skill_bindings', 'quality_score')
    op.drop_table('truth_nodes')
    op.drop_table('ai_call_logs')