"""Life Dashboard — one-page overview of personal data from existing tools.

Aggregates finance, calendar, reminders, routines, pomodoro, notes/thoughts,
mood, and saved links into a single dashboard view (JSON + HTML + chat commands).
"""

import json
import threading
from datetime import datetime, timedelta
from typing import Dict, Optional

from salmalm.constants import BASE_DIR, KST, DATA_DIR
from salmalm.utils.db import connect as _connect_db

_DB_PATH = BASE_DIR / "personal.db"
_DIGEST_PATH = DATA_DIR / "digest.json"
_db_lock = threading.Lock()


def _get_db():
    """Get db."""
    return _connect_db(_DB_PATH, wal=False, row_factory=True, check_same_thread=False)


class LifeDashboard:
    """Aggregates data from personal tools into a unified dashboard."""

    def generate_dashboard(self) -> dict:
        """Generate dashboard."""
        return {
            "finance": self._get_finance_summary(),
            "calendar": self._get_upcoming_events(),
            "tasks": self._get_pending_reminders(),
            "habits": self._get_routine_stats(),
            "thoughts": self._get_recent_thoughts(),
            "mood": self._get_mood_trend(),
            "productivity": self._get_pomodoro_stats(),
            "links": self._get_saved_links(limit=5),
            "generated_at": datetime.now(KST).isoformat(),
        }

    # ── Finance ──────────────────────────────────────────────

    def _get_finance_summary(self) -> dict:
        """Get finance summary."""
        now = datetime.now(KST)
        month_start = now.replace(day=1).strftime("%Y-%m-%d")
        month_end = (now.replace(day=28) + timedelta(days=4)).replace(day=1).strftime("%Y-%m-%d")
        try:
            with _db_lock:
                conn = _get_db()
                rows = conn.execute(
                    "SELECT amount, category FROM expenses WHERE date >= ? AND date < ?", (month_start, month_end)
                ).fetchall()
                conn.close()
        except Exception as e:  # noqa: broad-except
            return {"total_expense": 0, "by_category": {}, "count": 0}

        total = 0.0
        by_cat: Dict[str, float] = {}
        for r in rows:
            amt = float(r["amount"])
            cat = r["category"] or "기타"
            total += amt
            by_cat[cat] = by_cat.get(cat, 0) + amt
        return {"total_expense": total, "by_category": by_cat, "count": len(rows)}

    # ── Calendar ─────────────────────────────────────────────

    def _get_upcoming_events(self) -> list:
        """Return upcoming events from calendar. Since calendar uses Google API,
        we return a placeholder that the web handler can fill via tools."""
        return []  # Filled by API integration at runtime

    # ── Reminders ────────────────────────────────────────────

    def _get_pending_reminders(self) -> list:
        """Get pending reminders."""
        try:
            reminders_path = BASE_DIR / "reminders.json"
            if not reminders_path.exists():
                return []
            with open(reminders_path) as f:
                data = json.load(f)
            pending = []
            _now = datetime.now(KST).isoformat()  # noqa: F841
            for r in data if isinstance(data, list) else data.get("reminders", []):
                if not r.get("done", False):
                    pending.append(
                        {
                            "text": r.get("text", r.get("message", "")),
                            "time": r.get("time", r.get("remind_at", "")),
                        }
                    )
            return pending[:20]
        except Exception as e:  # noqa: broad-except
            return []

    # ── Routines ─────────────────────────────────────────────

    def _get_routine_stats(self) -> dict:
        """Get routine stats."""
        try:
            config_path = DATA_DIR / "routines.json"
            if not config_path.exists():
                return {"routines": [], "completion_rate": 0}
            with open(config_path) as f:
                routines = json.load(f)
            return {
                "routines": list(routines.keys()),
                "count": len(routines),
            }
        except Exception as e:  # noqa: broad-except
            return {"routines": [], "count": 0}

    # ── Thoughts / Notes ─────────────────────────────────────

    def _get_recent_thoughts(self, limit: int = 5) -> list:
        """Get recent thoughts."""
        try:
            with _db_lock:
                conn = _get_db()
                rows = conn.execute(
                    "SELECT id, content, tags, created_at FROM notes ORDER BY created_at DESC LIMIT ?", (limit,)
                ).fetchall()
                conn.close()
            return [
                {"id": r["id"], "content": r["content"][:200], "tags": r["tags"], "created_at": r["created_at"]}
                for r in rows
            ]
        except Exception as e:  # noqa: broad-except
            return []

    # ── Mood ─────────────────────────────────────────────────

    def _get_mood_trend(self) -> list:
        """Mood tracking from notes with mood tags."""
        try:
            week_ago = (datetime.now(KST) - timedelta(days=7)).isoformat()
            with _db_lock:
                conn = _get_db()
                rows = conn.execute(
                    "SELECT content, tags, created_at FROM notes WHERE tags LIKE '%mood%' AND created_at >= ? ORDER BY created_at",
                    (week_ago,),
                ).fetchall()
                conn.close()
            return [{"tags": r["tags"], "created_at": r["created_at"]} for r in rows]
        except Exception as e:  # noqa: broad-except
            return []

    # ── Pomodoro ─────────────────────────────────────────────

    def _get_pomodoro_stats(self) -> dict:
        """Get pomodoro stats."""
        try:
            with _db_lock:
                conn = _get_db()
                week_ago = (datetime.now(KST) - timedelta(days=7)).isoformat()
                total = conn.execute(
                    "SELECT COUNT(*) as c FROM pomodoro_sessions WHERE started_at >= ?", (week_ago,)
                ).fetchone()["c"]
                completed = conn.execute(
                    "SELECT COUNT(*) as c FROM pomodoro_sessions WHERE started_at >= ? AND completed = 1", (week_ago,)
                ).fetchone()["c"]
                conn.close()
            return {"total": total, "completed": completed, "rate": round(completed / total * 100, 1) if total else 0}
        except Exception as e:  # noqa: broad-except
            return {"total": 0, "completed": 0, "rate": 0}

    # ── Links ────────────────────────────────────────────────

    def _get_saved_links(self, limit: int = 5) -> list:
        """Get saved links."""
        try:
            with _db_lock:
                conn = _get_db()
                rows = conn.execute(
                    "SELECT id, url, title, saved_at FROM saved_links ORDER BY saved_at DESC LIMIT ?", (limit,)
                ).fetchall()
                conn.close()
            return [{"url": r["url"], "title": r["title"], "saved_at": r["saved_at"]} for r in rows]
        except Exception as e:  # noqa: broad-except
            return []

    # ── Text Summary ─────────────────────────────────────────

    def text_summary(self, section: Optional[str] = None) -> str:
        """Text summary."""
        data = self.generate_dashboard()
        if section == "finance":
            return self._format_finance(data["finance"])
        if section == "week":
            return self._format_week(data)
        return self._format_full(data)

    def _format_finance(self, fin: dict) -> str:
        """Format finance."""
        lines = ["💰 **이번 달 재정 현황**"]
        lines.append(f"총 지출: {fin['total_expense']:,.0f}원 ({fin['count']}건)")
        for cat, amt in sorted(fin.get("by_category", {}).items(), key=lambda x: -x[1]):
            lines.append(f"  • {cat}: {amt:,.0f}원")
        return "\n".join(lines) if fin["count"] else "💰 이번 달 지출 기록이 없습니다."

    def _format_week(self, data: dict) -> str:
        """Format week."""
        lines = ["📊 **주간 종합 리포트**", ""]
        lines.append(self._format_finance(data["finance"]))
        lines.append("")
        pomo = data["productivity"]
        lines.append(f"🍅 포모도로: {pomo['completed']}/{pomo['total']} 완료 ({pomo['rate']}%)")
        tasks = data["tasks"]
        lines.append(f"📋 미완료 리마인더: {len(tasks)}개")
        lines.append(f"📝 최근 메모: {len(data['thoughts'])}개")
        return "\n".join(lines)

    def _format_full(self, data: dict) -> str:
        """Format full."""
        lines = ["🏠 **Life Dashboard**", ""]
        # Finance
        fin = data["finance"]
        lines.append(f"💰 지출: {fin['total_expense']:,.0f}원 ({fin['count']}건)")
        # Tasks
        tasks = data["tasks"]
        lines.append(f"📋 할 일: {len(tasks)}개")
        for t in tasks[:3]:
            lines.append(f"  • {t['text'][:50]}")
        # Pomodoro
        pomo = data["productivity"]
        lines.append(f"🍅 포모도로: {pomo['completed']}/{pomo['total']} ({pomo['rate']}%)")
        # Notes
        thoughts = data["thoughts"]
        lines.append(f"📝 최근 메모: {len(thoughts)}개")
        # Links
        links = data["links"]
        if links:
            lines.append(f"🔗 저장된 링크: {len(links)}개")
        return "\n".join(lines)

    # ── HTML Dashboard ───────────────────────────────────────

    def render_html(self) -> str:
        """Render html."""
        data = self.generate_dashboard()
        fin = data["finance"]
        pomo = data["productivity"]
        tasks = data["tasks"]
        thoughts = data["thoughts"]
        links = data["links"]

        task_items = "".join(f"<li>{_esc(t['text'][:80])}</li>" for t in tasks[:10])
        thought_items = "".join(
            f"<li>{_esc(t['content'][:120])}<br><small>{_esc(t.get('created_at', ''))}</small></li>" for t in thoughts
        )
        link_items = "".join(
            f'<li><a href="{_esc(l["url"])}">{_esc(l["title"] or l["url"][:40])}</a></li>'
            for l in links  # noqa: E741
        )
        cat_rows = "".join(
            f"<tr><td>{_esc(c)}</td><td>{a:,.0f}원</td></tr>"
            for c, a in sorted(fin.get("by_category", {}).items(), key=lambda x: -x[1])
        )

        return f"""<!DOCTYPE html>
<html lang="ko"><head><meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Life Dashboard</title>
<style>
*{{box-sizing:border-box;margin:0;padding:0}}
body{{font-family:-apple-system,BlinkMacSystemFont,sans-serif;background:#f0f2f5;padding:16px;color:#333}}
h1{{text-align:center;margin-bottom:20px;color:#1a1a2e}}
.grid{{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;max-width:1200px;margin:0 auto}}
.card{{background:#fff;border-radius:12px;padding:20px;box-shadow:0 2px 8px rgba(0,0,0,.08)}}
.card h2{{font-size:1.1em;margin-bottom:12px;color:#16213e}}
.card ul{{list-style:none;padding:0}}.card li{{padding:4px 0;border-bottom:1px solid #f0f0f0}}
table{{width:100%;border-collapse:collapse}}td{{padding:4px 8px}}
.stat{{font-size:2em;font-weight:bold;color:#0f3460}}
.sub{{color:#888;font-size:.85em}}
a{{color:#0f3460;text-decoration:none}}
</style></head><body>
<h1>🏠 Life Dashboard</h1>
<div class="grid">
  <div class="card"><h2>💰 이번 달 지출</h2>
    <div class="stat">{fin["total_expense"]:,.0f}원</div>
    <div class="sub">{fin["count"]}건</div>
    <table>{cat_rows}</table></div>
  <div class="card"><h2>🍅 포모도로 (주간)</h2>
    <div class="stat">{pomo["completed"]}/{pomo["total"]}</div>
    <div class="sub">완료율 {pomo["rate"]}%</div></div>
  <div class="card"><h2>📋 할 일</h2>
    <ul>{task_items or "<li>없음</li>"}</ul></div>
  <div class="card"><h2>📝 최근 메모</h2>
    <ul>{thought_items or "<li>없음</li>"}</ul></div>
  <div class="card"><h2>🔗 저장 링크</h2>
    <ul>{link_items or "<li>없음</li>"}</ul></div>
</div>
<script>setTimeout(()=>location.reload(),30000)</script>
</body></html>"""


def _esc(s: str) -> str:
    """Esc."""
    return s.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;").replace('"', "&quot;")


# ── Proactive Digest ─────────────────────────────────────────


class ProactiveDigest:
    """Generates morning/evening digest messages."""

    def __init__(self) -> None:
        """Init  ."""
        self.dashboard = LifeDashboard()
        self._config = self._load_config()

    def _load_config(self) -> dict:
        """Load config."""
        from salmalm.config_manager import ConfigManager

        return ConfigManager.load("digest", defaults={"enabled": True, "morning": "08:00", "evening": "20:00"})

    def morning_digest(self) -> str:
        """Morning digest."""
        data = self.dashboard.generate_dashboard()
        lines = ["☀️ **좋은 아침! 오늘의 브리핑**", ""]
        tasks = data["tasks"]
        lines.append(f"📋 할 일: {len(tasks)}개")
        for t in tasks[:5]:
            lines.append(f"  • {t['text'][:60]}")
        habits = data["habits"]
        if habits.get("routines"):
            lines.append(f"🔄 루틴: {', '.join(habits['routines'][:3])}")
        return "\n".join(lines)

    def evening_digest(self) -> str:
        """Evening digest."""
        data = self.dashboard.generate_dashboard()
        lines = ["🌙 **오늘 하루 정리**", ""]
        fin = data["finance"]
        lines.append(f"💰 오늘 지출: {fin['total_expense']:,.0f}원")
        pomo = data["productivity"]
        lines.append(f"🍅 포모도로: {pomo['completed']}개 완료")
        return "\n".join(lines)

    def should_send(self, hour: int) -> Optional[str]:
        """Should send."""
        if not self._config.get("enabled", True):
            return None
        morning_h = int(self._config.get("morning", "08:00").split(":")[0])
        evening_h = int(self._config.get("evening", "20:00").split(":")[0])
        if hour == morning_h:
            return "morning"
        if hour == evening_h:
            return "evening"
        return None


# ── Singleton ────────────────────────────────────────────────

_dashboard = LifeDashboard()
_digest = ProactiveDigest()


def get_dashboard() -> LifeDashboard:
    """Get dashboard."""
    return _dashboard


def get_digest() -> ProactiveDigest:
    """Get digest."""
    return _digest
