"""Trigger analysis section — date picker, run, preview, save.

Separated from overview.py so that CRUD operations work even when
trigger_rules module is unavailable (e.g., standalone HuggingFace Space).
"""
from datetime import date, timedelta

import streamlit as st

from core.supabase_client import (
    get_campaign_date_range,
    save_action_items_batch,
)
from .triggers import TRIGGERS_AVAILABLE
from .utils import priority_level, CATEGORY_CONFIG


def render_analysis_section(campaign_id: int, base_ctx: dict):
    """Render trigger analysis: date picker, run button, preview, save."""
    with st.expander("🔍 트리거 분석 실행", expanded=True):
        if not TRIGGERS_AVAILABLE:
            st.info(
                "트리거 분석 기능을 사용할 수 없습니다. "
                "전체 프로젝트 환경에서만 지원됩니다."
            )
            return

        # Date range
        date_range = get_campaign_date_range(campaign_id)
        if not date_range:
            st.info("캠페인 데이터가 아직 동기화되지 않았습니다.")
            return

        _, last_date_str = date_range
        last_date = date.fromisoformat(last_date_str)
        default_start = last_date - timedelta(days=6)

        date_cols = st.columns(2)
        with date_cols[0]:
            start_date = st.date_input(
                "시작일",
                value=default_start,
                key="ai_trigger_start",
            )
        with date_cols[1]:
            end_date = st.date_input(
                "종료일",
                value=last_date,
                key="ai_trigger_end",
            )

        if st.button("🔍 분석 실행", key="ai_run_triggers", type="primary", use_container_width=True):
            with st.spinner("14개 트리거 규칙을 평가 중..."):
                try:
                    from .triggers import evaluate_triggers

                    results = evaluate_triggers(
                        campaign_id,
                        start_date.isoformat(),
                        end_date.isoformat(),
                    )
                    st.session_state["ai_trigger_results"] = results
                except Exception as e:
                    st.error(f"분석 오류: {e}")
                    return

        # Show results if available
        results = st.session_state.get("ai_trigger_results")
        if results is None:
            return

        if not results:
            st.success("모든 지표가 정상 범위입니다. 탐지된 신호가 없습니다.")
            return

        st.markdown(f"**{len(results)}개 신호 탐지됨**")

        # Preview cards
        for item in results:
            p_label, p_color, p_bg = priority_level(item["priority"])
            cat_cfg = CATEGORY_CONFIG.get(item["category"], {"color": "#666", "icon": "📌"})
            st.markdown(f"""
            <div style="background:#FAFAFA;border:1px solid #E5E7EB;border-radius:8px;
                        padding:12px;margin-bottom:8px;border-left:3px solid {p_color}">
                <div style="display:flex;gap:8px;align-items:center;margin-bottom:6px">
                    <span style="background:{p_bg};color:{p_color};padding:1px 8px;
                          border-radius:10px;font-size:11px;font-weight:600">{p_label}</span>
                    <span style="font-size:11px;color:{cat_cfg['color']}">{cat_cfg['icon']} {item['category']}</span>
                </div>
                <div style="font-size:14px;font-weight:600;color:#1F2937;margin-bottom:4px">{item['label']}</div>
                <div style="font-size:12px;color:#6B7280">{item.get('evidence', '')}</div>
            </div>
            """, unsafe_allow_html=True)

        # Save button
        if st.button("💾 액션아이템으로 저장", key="ai_save_triggers", use_container_width=True):
            _save_trigger_results(campaign_id, results, base_ctx)


def _save_trigger_results(campaign_id: int, results: list[dict], base_ctx: dict):
    """Save trigger analysis results as action items."""
    try:
        from core.supabase_client import get_supabase_client

        user_client = get_supabase_client()
        key_result = (
            user_client.table("api_keys")
            .select("user_id")
            .limit(1)
            .execute()
        )
        user_id = str(key_result.data[0]["user_id"]) if key_result.data else "unknown"

        result = save_action_items_batch(
            campaign_id=campaign_id,
            user_id=user_id,
            items=results,
        )

        created = result.get("created", 0)
        skipped = result.get("skipped", 0)
        if result.get("error"):
            st.error(f"저장 오류: {result['error']}")
        elif created > 0:
            st.success(f"✅ {created}개 저장 완료 (중복 {skipped}개 스킵)")
            st.session_state.pop("ai_trigger_results", None)
            st.rerun()
        else:
            st.info(f"모든 항목이 이미 존재합니다 ({skipped}개 스킵)")
    except Exception as e:
        st.error(f"저장 실패: {e}")