"""KOL module — Substack/Twitter post ingestion + AI analysis.

Standalone module, no FK into Trump posts/trades. First slice (B-tier):
  - kol_posts:    raw ingested posts from Substack/Twitter, keyed by URL
  - (kol_holdings + kol_wallets reserved for A-tier in later migration)

Each post carries its own AI analysis inline (1:1, no separate table):
summary (one-sentence), tickers_json (list of {ticker, action,
conviction, quote}), model, analysis_version.

Revision ID: 017
Revises: 016
Create Date: 2026-05-23 00:00:00.000000
"""

from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op


revision: str = "017"
down_revision: Union[str, None] = "016"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "kol_posts",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("kol_handle", sa.String(64), nullable=False, index=True),
        sa.Column("source", sa.String(16), nullable=False),  # substack | twitter
        sa.Column("external_id", sa.String(512), nullable=False),  # canonical URL / tweet id
        sa.Column("title", sa.String(512), nullable=True),
        sa.Column("url", sa.String(512), nullable=False),
        sa.Column("published_at", sa.DateTime(), nullable=False, index=True),
        sa.Column("raw_text", sa.Text(), nullable=False),
        sa.Column("content_hash", sa.String(64), nullable=False),

        # ── Inline analysis (1:1, populated by extractor) ─────────────
        sa.Column("summary",          sa.Text(),    nullable=True),
        sa.Column("tickers_json",     sa.Text(),    nullable=True),  # JSON list
        sa.Column("analyzed_at",      sa.DateTime(), nullable=True),
        sa.Column("analysis_model",   sa.String(64), nullable=True),
        sa.Column("analysis_version", sa.String(16), nullable=True),

        sa.Column("created_at", sa.DateTime(), nullable=False,
                  server_default=sa.func.current_timestamp()),
        sa.UniqueConstraint("source", "external_id", name="uq_kol_post_src_extid"),
    )


def downgrade() -> None:
    op.drop_table("kol_posts")