"""initial schema

Revision ID: 0001
Revises:
Create Date: 2026-05-26

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

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(
        "news_sources",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("name", sa.String(100), nullable=False),
        sa.Column("url", sa.String(500), nullable=False),
        sa.Column("source_type", sa.String(20), nullable=False, server_default="rss"),
        sa.Column("language", sa.String(5), nullable=False, server_default="zh"),
        sa.Column("category", sa.String(50), nullable=True),
        sa.Column("is_active", sa.Boolean(), nullable=False, server_default="true"),
        sa.Column("created_at", sa.DateTime(), nullable=False),
    )

    op.create_table(
        "raw_news",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("source_id", sa.Integer(), sa.ForeignKey("news_sources.id"), nullable=True),
        sa.Column("title", sa.String(500), nullable=False),
        sa.Column("url", sa.String(1000), nullable=False, unique=True),
        sa.Column("raw_content", sa.Text(), nullable=True),
        sa.Column("published_at", sa.DateTime(), nullable=True),
        sa.Column("crawled_at", sa.DateTime(), nullable=False),
        sa.Column("status", sa.String(20), nullable=False, server_default="pending"),
    )

    op.create_table(
        "processed_news",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("raw_news_id", sa.Integer(), sa.ForeignKey("raw_news.id"), nullable=False),
        sa.Column("title_zh", sa.String(500), nullable=False),
        sa.Column("summary", sa.Text(), nullable=False),
        sa.Column("opinion", sa.Text(), nullable=True),
        sa.Column("keywords", postgresql.ARRAY(sa.String()), nullable=True),
        sa.Column("importance_score", sa.Float(), nullable=False, server_default="5.0"),
        sa.Column("importance_reason", sa.Text(), nullable=True),
        sa.Column("category", sa.String(50), nullable=False, server_default="行业动态"),
        sa.Column("is_featured", sa.Boolean(), nullable=False, server_default="false"),
        sa.Column("featured_rank", sa.Integer(), nullable=True),
        sa.Column("source_name", sa.String(200), nullable=True),
        sa.Column("source_url", sa.String(1000), nullable=True),
        sa.Column("published_at", sa.DateTime(), nullable=True),
        sa.Column("processed_at", sa.DateTime(), nullable=False),
    )

    op.create_table(
        "llm_config",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("name", sa.String(100), nullable=False),
        sa.Column("provider", sa.String(50), nullable=False),
        sa.Column("api_key", sa.String(500), nullable=False),
        sa.Column("base_url", sa.String(500), nullable=False),
        sa.Column("model_name", sa.String(200), nullable=False),
        sa.Column("is_active", sa.Boolean(), nullable=False, server_default="true"),
        sa.Column("created_at", sa.DateTime(), nullable=False),
    )

    op.create_table(
        "system_logs",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("event_type", sa.String(50), nullable=False),
        sa.Column("message", sa.Text(), nullable=False),
        sa.Column("level", sa.String(20), nullable=False, server_default="INFO"),
        sa.Column("created_at", sa.DateTime(), nullable=False),
    )

    op.create_index("ix_raw_news_status", "raw_news", ["status"])
    op.create_index("ix_processed_news_processed_at", "processed_news", ["processed_at"])
    op.create_index("ix_processed_news_is_featured", "processed_news", ["is_featured"])


def downgrade() -> None:
    op.drop_table("system_logs")
    op.drop_table("llm_config")
    op.drop_table("processed_news")
    op.drop_table("raw_news")
    op.drop_table("news_sources")