"""The data-foundation acceptance criteria, as queries rather than assertions.

Spec: docs/superpowers/specs/2026-09-01-data-foundation-design.md

Three criteria deliberately permit a shortfall provided it is enumerated. A
filer that does not tag a concept is a fact about the filer, and recording it
is the correct outcome; reporting a quietly lower number is not. So every
criterion that can fall short prints the exact ticker, period and concept.

Usage::

    python -m scripts.data_foundation_report
"""
from __future__ import annotations

import json
import sqlite3
import sys

DB_PATH = "data/metrics.db"

NEW_STATEMENT_LINES = (
    "deferred_revenue", "research_development", "sga", "goodwill",
    "intangibles", "cash_and_st_investments", "debt_current",
    "operating_lease_liabilities",
)

CORE_STATEMENT_LINES = (
    "operating_cash_flow", "net_income", "total_assets",
    "receivables", "payables", "cogs",
)

GUIDANCE_FLOOR = 40


def _rows() -> list[dict]:
    conn = sqlite3.connect(DB_PATH)
    conn.row_factory = sqlite3.Row
    try:
        return [dict(r) for r in conn.execute("SELECT * FROM metrics")]
    finally:
        conn.close()


def _segment_tickers() -> set[str]:
    conn = sqlite3.connect(DB_PATH)
    try:
        return {r[0] for r in conn.execute("SELECT DISTINCT ticker FROM segments")}
    except sqlite3.OperationalError:
        return set()
    finally:
        conn.close()


def build_report() -> list[dict]:
    rows = _rows()
    total = len(rows)
    out: list[dict] = []

    legacy = [f"{r['ticker']} {r['period']}" for r in rows
              if r.get("data_quality_status") == "LEGACY_UNVERIFIED"]
    out.append({
        "criterion": "no_legacy_unverified_rows", "target": "0",
        "actual": str(len(legacy)), "passed": not legacy, "detail": legacy,
    })

    no_url = [f"{r['ticker']} {r['period']}" for r in rows if not r.get("source_url")]
    out.append({
        "criterion": "every_row_carries_source_url", "target": "0 missing",
        "actual": str(len(no_url)), "passed": not no_url, "detail": no_url,
    })

    parsed = [r for r in rows if r.get("guidance_status") == "PARSED"]
    silent = [f"{r['ticker']} {r['period']}" for r in rows
              if r.get("guidance_status") == "NO_GUIDANCE_ISSUED"]
    errored = [f"{r['ticker']} {r['period']}" for r in rows
               if r.get("guidance_status") == "PARSE_ERROR"]
    unquoted = [f"{r['ticker']} {r['period']}" for r in parsed
                if not r.get("guidance_source_quote")]
    out.append({
        "criterion": "guidance_parsed_above_floor", "target": f">= {GUIDANCE_FLOOR}",
        "actual": str(len(parsed)), "passed": len(parsed) >= GUIDANCE_FLOOR,
        "detail": [f"no guidance issued: {len(silent)}", f"parse errors: {len(errored)}"]
                  + errored,
    })
    out.append({
        "criterion": "every_parsed_guidance_has_a_quote", "target": "0 unquoted",
        "actual": str(len(unquoted)), "passed": not unquoted, "detail": unquoted,
    })

    core_gaps = [
        f"{r['ticker']} {r['period']} {line}"
        for r in rows for line in CORE_STATEMENT_LINES if r.get(line) is None
    ]
    out.append({
        "criterion": "core_statement_lines_populated", "target": f"{total} rows each",
        "actual": f"{len(core_gaps)} gaps", "passed": not core_gaps, "detail": core_gaps,
    })

    new_gaps = [
        f"{r['ticker']} {r['period']} {line}"
        for r in rows for line in NEW_STATEMENT_LINES if r.get(line) is None
    ]
    out.append({
        "criterion": "new_statement_lines_populated",
        "target": "populated wherever the filer tags the concept",
        "actual": f"{len(new_gaps)} absences", "passed": True, "detail": new_gaps,
    })

    fallback = []
    for r in rows:
        try:
            warnings = json.loads(r.get("quality_warnings") or "[]")
        except (TypeError, ValueError):
            warnings = []
        for w in warnings:
            if "fallback_non_sec" in w:
                fallback.append(f"{r['ticker']} {r['period']} {w}")
    out.append({
        "criterion": "no_fallback_non_sec", "target": "0",
        "actual": str(len(fallback)), "passed": not fallback, "detail": fallback,
    })

    covered = {r["ticker"] for r in rows}
    with_segments = _segment_tickers()
    missing = sorted(covered - with_segments)
    out.append({
        "criterion": "segments_on_every_covered_ticker",
        "target": f"{len(covered)} tickers",
        "actual": str(len(with_segments)), "passed": not missing, "detail": missing,
    })

    return out


def main() -> None:
    report = build_report()
    for r in report:
        mark = "PASS" if r["passed"] else "FAIL"
        print(f"[{mark}] {r['criterion']}: {r['actual']} (target {r['target']})")
        for line in r["detail"][:40]:
            print(f"         {line}")
        if len(r["detail"]) > 40:
            print(f"         ... and {len(r['detail']) - 40} more")
    failed = [r for r in report if not r["passed"]]
    sys.exit(1 if failed else 0)


if __name__ == "__main__":
    main()