"""
build_cross_section_consistency_v1.py
목적: operational_report.json의 모든 섹션 markdown에서 canonical_metrics_registry에
     정의된 논리 지표가 여러 섹션에서 상이한 값으로 렌더링되는지 검사.

정책: AGENTS.md R1 enforcement_mode_until 방식
  - now < enforcement_mode_until → conflict 있어도 gate=WARN (보고서 발행 허용)
  - now >= enforcement_mode_until → gate=FAIL (hard-block)

출력 Temp/cross_section_consistency_v1.json:
{
  "formula_id": "CROSS_SECTION_CONSISTENCY_V1",
  "score": 0~100,
  "conflict_count": N,
  "conflicts": [{metric, section, rendered, canonical}],
  "forbidden_uniform_labels": N,
  "incomplete_tables": N,
  "enforcement_mode_until": "2026-06-15",
  "gate": "PASS" | "WARN" | "FAIL"
}
"""
import json
import pathlib
import re
import sys
from datetime import date, datetime, timezone

ROOT = pathlib.Path(__file__).parent.parent
REPORT_PATH  = ROOT / "Temp" / "operational_report.json"
CANON_PATH   = ROOT / "Temp" / "canonical_metrics_v1.json"
REGISTRY_PATH = ROOT / "spec" / "25_canonical_metrics_registry.yaml"
OUT_PATH     = ROOT / "Temp" / "cross_section_consistency_v1.json"

ENFORCEMENT_MODE_UNTIL = date(2026, 6, 15)

# AGENTS.md R1 금지 일률값
# 주의: "정상"은 STATUS_LABELS["NORMAL"] 정상 번역값이므로 제외.
#       R1 금지 대상은 stub/은폐용 일률 placeholder이며 실제 상태코드는 제외.
FORBIDDEN_LABELS = {
    "데이터 누락", "DATA_MISSING",
    # LOSING은 market_share_proxy_v1에서 실제 알고리즘 산출 상태코드이므로 제외.
    # R1 금지 대상: 실질 데이터가 있어야 할 위치에 "정보 없음"으로 은폐하는 stub만 해당.
}
# 화이트리스트 컬럼 (이 컬럼에 있으면 금지 값 허용)
WHITELIST_COLS = {"비고", "해제조건", "remarks", "해석", "근거"}
# 섹션별 예외 허용 (해당 섹션에서는 forbidden_labels 검사 제외)
# pa1_report_table: 471990처럼 universe에 없는 종목은 PA1 미수집이 정당
WHITELIST_SECTIONS = {"pa1_report_table"}

# 섹션별 검사 대상 지표 + 검색 패턴
# key = metric_id, value = 섹션·패턴 맵핑
METRIC_PATTERNS = {
    "cluster_pct": {
        "sections": ["cluster_sync_audit", "portfolio_structure_risks", "mandatory_reduction_plan"],
        "pattern": r"cluster_pct\s*[=:]\s*([\d.]+)%|반도체 클러스터[^\|]*\|\s*([\d.]+)\s*\|",
    },
    "cash_min_required_krw": {
        "sections": ["exec_safety_declaration", "cash_recovery_plan_crdl", "QEH_AUDIT_BLOCK"],
        "pattern": r"최소\s+([\d,]+)원|최소 필요 현금:\s*\*\*([\d,]+)원|현금 부족분[^\|]*\|\s*([\d,]+)\s*\|",
    },
    "cash_reference_total_krw": {
        "sections": ["cash_recovery_plan_crdl"],
        "pattern": r"참고용 전체 후보 누적 \(([\d,]+)원\)",
    },
}


def _load_json(p: pathlib.Path) -> dict:
    if p.exists():
        try:
            return json.loads(p.read_text(encoding="utf-8"))
        except Exception:
            pass
    return {}


def _parse_krw(s: str) -> float | None:
    """'39,797,073' → 39797073.0"""
    if s is None:
        return None
    cleaned = s.replace(",", "").replace("원", "").strip()
    try:
        return float(cleaned)
    except ValueError:
        return None


def _extract_value(text: str, pattern: str) -> str | None:
    """markdown에서 정규식으로 값 추출 (첫 번째 그룹)."""
    m = re.search(pattern, text)
    if not m:
        return None
    for g in m.groups():
        if g is not None:
            return g.strip()
    return None


def check_conflicts(report_sections: dict[str, str], canon: dict) -> list[dict]:
    conflicts = []
    metrics_canon = canon.get("metrics", {})

    for metric_id, info in METRIC_PATTERNS.items():
        canonical_val = metrics_canon.get(metric_id)
        if canonical_val is None:
            continue

        for section_name in info["sections"]:
            md = report_sections.get(section_name, "")
            if not md:
                continue
            rendered_raw = _extract_value(md, info["pattern"])
            if rendered_raw is None:
                continue

            # 값 파싱 — 숫자형 비교
            rendered_num = _parse_krw(rendered_raw)
            if rendered_num is None:
                try:
                    rendered_num = float(rendered_raw)
                except ValueError:
                    continue

            tol = 0.1 if metric_id == "cluster_pct" else 0
            if abs(rendered_num - float(canonical_val)) > tol:
                conflicts.append({
                    "metric":    metric_id,
                    "section":   section_name,
                    "rendered":  rendered_raw,
                    "canonical": canonical_val,
                    "diff":      round(rendered_num - float(canonical_val), 4),
                })

    return conflicts


def check_forbidden_labels(report_sections: dict[str, str]) -> int:
    """GFM 표 셀에서 금지 일률값 개수 반환."""
    count = 0
    for section_name, md in report_sections.items():
        if section_name in WHITELIST_SECTIONS:
            continue
        for line in md.splitlines():
            if "|" not in line:
                continue
            cells = [c.strip() for c in line.split("|")]
            for cell in cells:
                if any(wl in cell for wl in WHITELIST_COLS):
                    break
                if cell in FORBIDDEN_LABELS:
                    count += 1
    return count


def check_incomplete_tables(report_sections: dict[str, str]) -> int:
    """
    핵심 산출 표(stub_token이 실질 데이터여야 할 컬럼에 있을 때) INCOMPLETE_TABLE 판정.
    AGENTS.md R1 기준: blank ≥ 5% = WARN, ≥ 20% = FAIL.
    단, 이 게이트는 교차섹션 일관성 검사 범위이므로
    '지정가·수량·손익률·클러스터%' 핵심 컬럼에 stub이 있는 경우만 집계.
    """
    CRITICAL_STUBS = {"미산출", "DATA_MISSING", "데이터 누락"}
    incomplete = 0
    for md in report_sections.values():
        table_lines = [l for l in md.splitlines() if l.strip().startswith("|") and "---" not in l]
        if len(table_lines) < 3:
            continue
        data_lines = table_lines[1:]
        critical_stubs = 0
        total_data_cells = 0
        for line in data_lines:
            cells = [c.strip() for c in line.split("|") if c.strip()]
            total_data_cells += len(cells)
            critical_stubs += sum(1 for c in cells if c in CRITICAL_STUBS)
        if total_data_cells > 0 and critical_stubs / total_data_cells >= 0.05:
            incomplete += 1
    return incomplete


def main() -> int:
    report_data = _load_json(REPORT_PATH)
    canon_data  = _load_json(CANON_PATH)

    sections_raw = report_data.get("sections") or []
    report_sections: dict[str, str] = {
        str(s.get("name") or ""): str(s.get("markdown") or "")
        for s in sections_raw if isinstance(s, dict)
    }

    conflicts       = check_conflicts(report_sections, canon_data)
    forbidden_count = check_forbidden_labels(report_sections)
    incomplete_count = check_incomplete_tables(report_sections)

    conflict_count = len(conflicts)
    today = date.today()
    in_enforcement = today >= ENFORCEMENT_MODE_UNTIL

    if conflict_count == 0 and forbidden_count == 0 and incomplete_count == 0:
        gate = "PASS"
    elif in_enforcement:
        gate = "FAIL"
    else:
        gate = "WARN"

    # 점수: conflict 1건당 -10, forbidden 1개당 -2, incomplete 1개당 -5
    score = max(0, 100 - conflict_count * 10 - forbidden_count * 2 - incomplete_count * 5)

    out = {
        "formula_id":              "CROSS_SECTION_CONSISTENCY_V1",
        "generated_at":            datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"),
        "score":                   score,
        "conflict_count":          conflict_count,
        "conflicts":               conflicts,
        "forbidden_uniform_labels": forbidden_count,
        "incomplete_tables":       incomplete_count,
        "enforcement_mode_until":  str(ENFORCEMENT_MODE_UNTIL),
        "enforcement_active":      in_enforcement,
        "gate":                    gate,
    }

    OUT_PATH.parent.mkdir(parents=True, exist_ok=True)
    OUT_PATH.write_text(json.dumps(out, ensure_ascii=False, indent=2), encoding="utf-8")

    print(f"CROSS_SECTION_CONSISTENCY_V1: gate={gate}  score={score}  conflicts={conflict_count}  "
          f"forbidden={forbidden_count}  incomplete={incomplete_count}")
    if conflicts:
        print("  CONFLICTS:")
        for c in conflicts:
            print(f"    [{c['metric']}] section={c['section']} rendered={c['rendered']} canonical={c['canonical']} diff={c['diff']}")

    return 0 if gate in ("PASS", "WARN") else 1


if __name__ == "__main__":
    sys.exit(main())