"""Daily Herman War Room digest → Telegram (Aïssa + Mo)."""
from __future__ import annotations

import logging
from datetime import datetime, timezone
from typing import Any

import httpx

from app.config import settings
from app.db import execute, fetch_all, fetch_one
from app.services import llm_router

log = logging.getLogger("cockpit.warroom_digest")


def _recipients() -> list[tuple[str, str]]:
    """(chat_id, display_name)"""
    return [
        (str(getattr(settings, "HERMES_CEO_CHAT_ID", None) or "8859782446"), "Aïssa"),
        (str(getattr(settings, "HERMES_CTO_CHAT_ID", None) or "789036463"), "Mo"),
    ]


def collect_warroom_day(*, hours: int = 24, limit: int = 120) -> list[dict[str, Any]]:
    hours = max(1, min(int(hours), 72))
    rows = fetch_all(
        """
        SELECT m.id, m.sender_type, m.agent_key, m.username, m.content, m.created_at, r.kind, r.title
        FROM warroom_messages m
        JOIN warroom_rooms r ON r.id = m.room_id
        WHERE m.created_at >= NOW() - make_interval(hours => %s)
          AND r.kind = 'warroom'
        ORDER BY m.created_at ASC
        LIMIT %s
        """,
        (hours, limit),
    )
    out = []
    for r in rows or []:
        item = dict(r)
        if item.get("created_at") and hasattr(item["created_at"], "isoformat"):
            item["created_at"] = item["created_at"].isoformat()
        out.append(item)
    return out


def _transcript(messages: list[dict[str, Any]], *, max_chars: int = 6000) -> str:
    lines: list[str] = []
    for m in messages:
        st = m.get("sender_type")
        if st == "user":
            who = m.get("username") or "user"
        elif st == "agent":
            who = m.get("agent_key") or "agent"
        else:
            who = "system"
        content = (m.get("content") or "").strip().replace("\n", " ")
        if not content:
            continue
        lines.append(f"- {who}: {content[:280]}")
    text = "\n".join(lines)
    return text[-max_chars:]


async def generate_digest_text(messages: list[dict[str, Any]]) -> str:
    day = datetime.now(timezone.utc).strftime("%Y-%m-%d")
    if not messages:
        return (
            f"📋 War Room dagrapport {day}\n\n"
            "Geen activiteit in #war-room vandaag. Agents stonden klaar; geen overleg gelogd."
        )
    transcript = _transcript(messages)
    system = (
        "Je bent Herman, Co-CEO van Foodlinkk. Schrijf een beknopte Nederlandse "
        "Telegram-samenvatting van het War Room-overleg voor Aïssa (CEO) en Mo (CTO).\n"
        "Structuur:\n"
        f"1) Kop: 📋 War Room dagrapport {day}\n"
        "2) 3–6 bullets: wat agents bespraken (pipeline, deals, acties, blockers)\n"
        "3) Sectie 'Acties / open punten' met concrete next steps\n"
        "4) 1 zin afsluiting\n"
        "Max ~350 woorden. Geen @zelf-prefix. Geen 'agents staan uit'."
    )
    user = f"War Room transcript (nieuwste onderaan):\n{transcript}"
    reply, _meta = await llm_router.chat_messages(
        [{"role": "system", "content": system}, {"role": "user", "content": user}],
        timeout=90.0,
        user=str(getattr(settings, "HERMES_CEO_CHAT_ID", None) or "8859782446"),
        max_tokens=900,
        temperature=0.3,
    )
    text = (reply or "").strip()
    if not text.startswith("📋"):
        text = f"📋 War Room dagrapport {day}\n\n{text}"
    return text[:3500]


async def _deliver_telegram(chat_id: str, name: str, digest: str) -> dict[str, Any]:
    """Ask Hermes agent to deliver the digest into that Telegram chat."""
    system = (
        f"Je bent Herman. Bezorg het volgende War Room-dagrapport NU via Telegram "
        f"aan {name} (chat_id={chat_id}). Stuur de tekst zo letterlijk mogelijk. "
        "Bevestig kort of verzonden."
    )
    try:
        reply, meta = await llm_router.chat_messages(
            [
                {"role": "system", "content": system},
                {"role": "user", "content": digest},
            ],
            timeout=120.0,
            user=str(chat_id),
            max_tokens=200,
            temperature=0.1,
        )
        return {
            "ok": True,
            "chat_id": chat_id,
            "name": name,
            "confirm": (reply or "")[:240],
            "provider": (meta or {}).get("provider_type"),
        }
    except Exception as exc:
        log.exception("warroom digest deliver failed %s", chat_id)
        return {"ok": False, "chat_id": chat_id, "name": name, "error": str(exc)}


def _persist(digest: str, message_count: int, deliveries: list[dict[str, Any]]) -> None:
    try:
        execute(
            """
            INSERT INTO agent_events (agent_name, agent_type, event_type, title, body, status, channel, metadata)
            VALUES (%s, %s, %s, %s, %s, %s, %s, %s::jsonb)
            """,
            (
                "herman",
                "warroom_digest",
                "warroom_daily_digest",
                "War Room dagrapport verstuurd",
                digest[:4000],
                "completed",
                "telegram",
                __import__("json").dumps(
                    {
                        "message_count": message_count,
                        "deliveries": deliveries,
                    }
                ),
            ),
        )
    except Exception:
        log.exception("persist digest event failed")

    try:
        from app.services import agent_chat

        agent_chat.post_system_line(
            "📤 Dagrapport verstuurd naar Aïssa + Mo via Telegram.\n\n" + digest[:1500],
            agent_key="herman",
            metadata={"kind": "warroom_digest", "deliveries": deliveries},
        )
    except Exception:
        log.exception("post digest to warroom failed")


async def run_daily_digest(*, hours: int = 24, deliver: bool = True) -> dict[str, Any]:
    messages = collect_warroom_day(hours=hours)
    digest = await generate_digest_text(messages)
    deliveries: list[dict[str, Any]] = []
    if deliver:
        for chat_id, name in _recipients():
            deliveries.append(await _deliver_telegram(chat_id, name, digest))
    _persist(digest, len(messages), deliveries)
    return {
        "ok": True,
        "message_count": len(messages),
        "digest": digest,
        "deliveries": deliveries,
        "generated_at": datetime.now(timezone.utc).isoformat(),
    }