import database
"""Stock profile endpoint — GET /api/v1/stocks/{ticker}."""

import logging

from fastapi import APIRouter, HTTPException

from cache import get_or_set
from database import execute_query, execute_one
from schemas.stock import (
    Peer,
    PriceEvent,
    SecFiling,
    InsiderTrade,
    StockProfile,
    StockProfileResponse,
)

logger = logging.getLogger(__name__)
router = APIRouter(prefix="/stocks", tags=["stocks"])


@router.get(
    "/{ticker}",
    summary="Get full stock profile with all data",
    response_model=StockProfileResponse,
    responses={404: {"description": "Stock not found"}},
)
async def get_stock_profile(ticker: str):
    """Get complete stock profile including price, peers, sentiment, filings, and insider trades."""
    ticker = ticker.upper().strip()

    # Cache key for this ticker
    cache_key = f"stock:{ticker}"

    async def _fetch_full_profile():
        # 1. Stock profile
        row = await database.execute_one(
            "SELECT * FROM stock_profiles WHERE ticker = $1",
            (ticker,),
        )
        if not row:
            raise HTTPException(status_code=404, detail=f"Stock {ticker} not found")

        profile = StockProfile(
            ticker=row["ticker"],
            name=row.get("name"),
            exchange=row.get("exchange"),
            sector=row.get("sector"),
            industry=row.get("industry"),
            marketCap=float(row["market_cap"]) if row.get("market_cap") else None,
            description=row.get("description"),
            website=row.get("website"),
            ceo=row.get("ceo"),
            employees=row.get("employees"),
            peRatio=float(row["pe_ratio"]) if row.get("pe_ratio") else None,
            eps=float(row["eps"]) if row.get("eps") else None,
            dividendYield=float(row["dividend_yield"]) if row.get("dividend_yield") else None,
            beta=float(row["beta"]) if row.get("beta") else None,
        )

        # 2. Latest price
        price_row = await database.execute_one(
            "SELECT ticker, date, open, high, low, close, volume, adjusted_close "
            "FROM prices WHERE ticker = $1 ORDER BY date DESC LIMIT 1",
            (ticker,),
        )
        price = None
        if price_row:
            price = PriceEvent(
                ticker=ticker,
                date=price_row["date"],
                open=float(price_row["open"]) if price_row.get("open") else None,
                high=float(price_row["high"]) if price_row.get("high") else None,
                low=float(price_row["low"]) if price_row.get("low") else None,
                close=float(price_row["close"]) if price_row.get("close") else None,
                volume=int(price_row["volume"]) if price_row.get("volume") else None,
                adjustedClose=float(price_row["adjusted_close"]) if price_row.get("adjusted_close") else None,
            )

        # 3. Peers (from peers.py endpoint, not inline)
        peers = await _fetch_peers(ticker)

        # 4. SEC filings (last 20)
        filings = await _fetch_filings(ticker)

        # 5. Insider trades (last 20)
        insider_trades = await _fetch_insider_trades(ticker)

        return StockProfileResponse(
            profile=profile,
            price=price,
            peers=peers,
            secFilings=filings,
            insiderTrades=insider_trades,
        )

    result = await get_or_set(cache_key, _fetch_full_profile, expire=60)
    return result


async def _fetch_peers(ticker: str) -> list[Peer]:
    """Fetch peer companies from peer_groups table."""
    rows = await database.execute_query(
        """
        SELECT pg.ticker, pg.peer_ticker, pg.similarity_score,
               sp.name,
               (p2.close - p2.close_1d) / NULLIF(p2.close_1d, 0) * 100 AS price_change_1d
        FROM peer_groups pg
        JOIN stock_profiles sp ON pg.peer_ticker = sp.ticker
        LEFT JOIN LATERAL (
            SELECT close FROM prices WHERE ticker = pg.peer_ticker ORDER BY date DESC LIMIT 1
        ) p2 ON true
        LEFT JOIN LATERAL (
            SELECT close FROM prices WHERE ticker = pg.peer_ticker ORDER BY date DESC LIMIT 1 OFFSET 1
        ) p2d ON true
        WHERE pg.ticker = $1
        ORDER BY pg.similarity_score DESC
        LIMIT 10
        """,
        (ticker,),
    )
    return [
        Peer(
            ticker=r["peer_ticker"],
            name=r.get("name"),
            similarityScore=float(r["similarity_score"]) if r.get("similarity_score") else None,
            relativeStrength=None,
            priceChange1d=float(r["price_change_1d"]) if r.get("price_change_1d") else None,
        )
        for r in rows
    ]


async def _fetch_filings(ticker: str, limit: int = 20) -> list[SecFiling]:
    """Fetch recent SEC filings for a ticker."""
    rows = await database.execute_query(
        """
        SELECT ticker, cik, form_type, filing_date, report_date,
               accession_number, url, content_summary, sentiment_score, tags
        FROM sec_filings
        WHERE ticker = $1
        ORDER BY filing_date DESC
        LIMIT $2
        """,
        (ticker, limit),
    )
    return [
        SecFiling(
            ticker=r["ticker"],
            cik=r.get("cik"),
            formType=r["form_type"],
            filingDate=r["filing_date"],
            reportDate=r["report_date"],
            accessionNumber=r.get("accession_number"),
            url=r.get("url"),
            contentSummary=r.get("content_summary"),
            sentimentScore=float(r["sentiment_score"]) if r.get("sentiment_score") else None,
            tags=r.get("tags"),
        )
        for r in rows
    ]


async def _fetch_insider_trades(ticker: str, limit: int = 20) -> list[InsiderTrade]:
    """Fetch recent insider trades for a ticker."""
    rows = await database.execute_query(
        """
        SELECT ticker, insider_name, insider_title, transaction_date,
               transaction_type, shares, price_per_share, total_value,
               shares_owned_after, filing_date
        FROM insider_trades
        WHERE ticker = $1
        ORDER BY transaction_date DESC
        LIMIT $2
        """,
        (ticker, limit),
    )
    return [
        InsiderTrade(
            ticker=r["ticker"],
            insiderName=r.get("insider_name"),
            insiderTitle=r.get("insider_title"),
            transactionDate=r["transaction_date"],
            transactionType=r.get("transaction_type"),
            shares=int(r["shares"]) if r.get("shares") else None,
            pricePerShare=float(r["price_per_share"]) if r.get("price_per_share") else None,
            totalValue=float(r["total_value"]) if r.get("total_value") else None,
            sharesOwnedAfter=int(r["shares_owned_after"]) if r.get("shares_owned_after") else None,
            filingDate=r.get("filing_date"),
        )
        for r in rows
    ]