"""initial schema

Revision ID: 0001
Revises:
Create Date: 2026-05-07

"""
from __future__ import annotations

from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op


revision: str = "0001"
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:
    op.create_table(
        "preferences",
        sa.Column("id", sa.Integer, primary_key=True),
        sa.Column("user_email", sa.String(320), nullable=False),
        sa.Column("text", sa.Text, nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
    )
    op.create_index("ix_preferences_user_email", "preferences", ["user_email"])

    op.create_table(
        "chat_messages",
        sa.Column("id", sa.Integer, primary_key=True),
        sa.Column("user_email", sa.String(320), nullable=False),
        sa.Column("role", sa.String(16), nullable=False),
        sa.Column("content", sa.Text, nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
    )
    op.create_index("ix_chat_user_created", "chat_messages", ["user_email", "created_at"])

    op.create_table(
        "reports",
        sa.Column("id", sa.Integer, primary_key=True),
        sa.Column("user_email", sa.String(320), nullable=False),
        sa.Column("summary_md", sa.Text, nullable=False),
        sa.Column("summary_doc_path", sa.String(512), nullable=False),
        sa.Column("full_doc_path", sa.String(512), nullable=False),
        sa.Column("generated_at", sa.DateTime(timezone=True), nullable=False),
    )
    op.create_index("ix_reports_user_email", "reports", ["user_email"])

    op.create_table(
        "feedback_events",
        sa.Column("id", sa.Integer, primary_key=True),
        sa.Column("user_email", sa.String(320), nullable=False),
        sa.Column("rating", sa.String(8), nullable=False),
        sa.Column("message_text", sa.Text, nullable=False),
        sa.Column("extracted_insight", sa.Text, nullable=False),
        sa.Column("preference_id", sa.Integer, sa.ForeignKey("preferences.id"), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
    )
    op.create_index("ix_feedback_user_email", "feedback_events", ["user_email"])


def downgrade() -> None:
    op.drop_table("feedback_events")
    op.drop_table("reports")
    op.drop_table("chat_messages")
    op.drop_table("preferences")