#!/usr/bin/env python3
"""Verify integrity and pre-specified classification rules for the public release."""

from __future__ import annotations

import csv
import hashlib
import json
import subprocess
import sys
from collections import Counter
from pathlib import Path


ROOT = Path(__file__).resolve().parents[1]


def sha256(path: Path) -> str:
    digest = hashlib.sha256()
    with path.open("rb") as handle:
        for chunk in iter(lambda: handle.read(1024 * 1024), b""):
            digest.update(chunk)
    return digest.hexdigest()


def check_manifest() -> int:
    manifest = ROOT / "MANIFEST.sha256"
    if not manifest.is_file():
        raise AssertionError("MANIFEST.sha256 is missing")
    count = 0
    for line in manifest.read_text(encoding="utf-8").splitlines():
        expected, relative = line.split("  ", 1)
        path = ROOT / relative
        if not path.is_file():
            raise AssertionError(f"manifest file is missing: {relative}")
        actual = sha256(path)
        if actual != expected:
            raise AssertionError(f"checksum mismatch for {relative}: {actual} != {expected}")
        count += 1
    return count


def check_groups() -> tuple[int, int, Counter[str]]:
    with (ROOT / "data/group_classifications.csv").open(newline="", encoding="utf-8") as handle:
        rows = list(csv.DictReader(handle))
    if len(rows) != 384:
        raise AssertionError("group classification must contain 384 rows")
    identities = {(int(row["layer"]), int(row["kv_group"])) for row in rows}
    if identities != {(layer, group) for layer in range(24) for group in range(16)}:
        raise AssertionError("group identities are incomplete or duplicated")

    candidates = []
    selected = []
    for row in rows:
        expected_candidate = (
            float(row["graph_substitutability"]) >= 0.95
            and float(row["typed_advantage"]) >= 0.20
        )
        if (row["candidate_by_registered_rule"] == "true") != expected_candidate:
            raise AssertionError(f"candidate rule mismatch at layer/group {row['layer']}/{row['kv_group']}")
        if expected_candidate:
            candidates.append(row)
        if row["q25_selected"] == "true":
            selected.append(row)
            if not expected_candidate:
                raise AssertionError("selected group is not a pre-specified candidate")

    modes = Counter(row["q25_mode"] for row in rows)
    if len(candidates) != 118 or len(selected) != 96:
        raise AssertionError(f"candidate/selection count mismatch: {len(candidates)}/{len(selected)}")
    if modes != Counter({"GLOBAL": 288, "LOCAL": 81, "LOCAL_GRAPH": 15}):
        raise AssertionError(f"mode counts differ: {modes}")

    by_layer = Counter(int(row["layer"]) for row in selected)
    if len(by_layer) > 10 or min(by_layer.values()) < 2:
        raise AssertionError(f"compact-layer constraints fail: {by_layer}")
    graph_rows = [row for row in selected if row["q25_mode"] == "LOCAL_GRAPH"]
    if sum(int(row["layer"]) == 23 for row in graph_rows) < 10:
        raise AssertionError("layer-23 graph-group constraint fails")
    coverage: Counter[str] = Counter()
    for row in graph_rows:
        coverage.update(set(row["q25_active_programs"].split(";")))
    expected = json.loads((ROOT / "raw/frontier/q25.json").read_text(encoding="utf-8"))["physical_export"]["graph_program_coverage"]
    if dict(coverage) != expected:
        raise AssertionError(f"graph-program coverage mismatch: {dict(coverage)} != {expected}")
    return len(candidates), len(selected), modes


def check_interactions() -> int:
    nodes = json.loads((ROOT / "raw/interactions/nodes.json").read_text(encoding="utf-8"))["nodes"]
    candidate_ids = {(int(row["layer"]), int(row["head"])) for row in nodes}
    if len(candidate_ids) != 118:
        raise AssertionError("interaction node set must contain 118 unique candidates")
    with (ROOT / "raw/interactions/pairs.jsonl").open(encoding="utf-8") as handle:
        raw_pairs = {row["key"]: row for row in (json.loads(line) for line in handle)}
    pairs = set()
    with (ROOT / "data/pair_interactions.csv").open(newline="", encoding="utf-8") as handle:
        for row in csv.DictReader(handle):
            members = tuple(sorted((
                (int(row["group_a_layer"]), int(row["group_a_kv_group"])),
                (int(row["group_b_layer"]), int(row["group_b_kv_group"])),
            )))
            if members[0] not in candidate_ids or members[1] not in candidate_ids:
                raise AssertionError("pair contains a non-candidate group")
            raw = raw_pairs.get(row["key"])
            if raw is None:
                raise AssertionError(f"flattened pair is absent from raw data: {row['key']}")
            if float(row["semantic_interaction"]) != float(raw["semantic_interaction"]):
                raise AssertionError(f"flattened interaction differs from raw data: {row['key']}")
            pairs.add(members)
    if len(raw_pairs) != 6903 or len(pairs) != 6903:
        raise AssertionError(f"expected 6903 unique pairs, found {len(pairs)}")
    return len(pairs)


def check_postreview() -> None:
    payload = json.loads(
        (ROOT / "raw/postreview/q25_confirmation.json").read_text(encoding="utf-8")
    )
    lm = payload["language_model"]
    if lm["documents"] != 470 or lm["tokens"] != 3_850_240:
        raise AssertionError("post-review LM support differs")
    if lm["graph_state"] != "disabled/zero for both selection and evaluation":
        raise AssertionError("post-review graph/PPL boundary differs")
    if not lm["noninferiority_pass"]:
        raise AssertionError("post-review PPL non-inferiority failed")
    if lm["paired_document_bootstrap"]["ppl_ratio_upper"] >= 1.03:
        raise AssertionError("post-review PPL interval exceeds the margin")
    semantic = payload["semantic_confirmation"]
    if not semantic["untouched_by_training_selection_or_thresholding"]:
        raise AssertionError("semantic confirmation is not untouched")
    metrics = semantic["metrics"]
    expected = {
        "correct": 0.999,
        "untyped": 0.187,
        "wrong_role": 0.0,
        "wrong_event": 0.1335,
        "random": 0.1335,
        "zero": 0.1335,
    }
    for name, value in expected.items():
        if float(metrics[name]["accuracy"]) != value:
            raise AssertionError(f"semantic confirmation differs for {name}")
    state = payload["persistent_state"]
    if state["token_kv_reduction"] != 0.21875:
        raise AssertionError("token-KV accounting differs")
    architecture = payload["architecture"]
    if architecture["query_heads_per_kv_head"] != 1:
        raise AssertionError("the released backbone is not the verified 1:1 MHA geometry")
    cached = json.loads(
        (ROOT / "raw/reproducibility/q25_cached_decode_profile.json").read_text(
            encoding="utf-8"
        )
    )
    if not all(
        row["numerically_equivalent"]
        for row in cached["verification"].values()
    ):
        raise AssertionError("cached decode did not match the full-sequence path")
    prefix_8k = {
        int(row["batch_size"]): row
        for row in cached["rows"]
        if int(row["prefix_length"]) == 8160
    }
    if set(prefix_8k) != {1, 4, 8, 16}:
        raise AssertionError("cached 8k batch matrix is incomplete")
    if any(row["ratios"]["persistent_kv"] != 0.78125 for row in prefix_8k.values()):
        raise AssertionError("cached persistent-KV ratio differs")


def check_replications() -> None:
    payload = json.loads(
        (ROOT / "raw/replication/q25_replications.json").read_text(encoding="utf-8")
    )
    if payload["fresh_replications"] != 2:
        raise AssertionError("expected two fresh Q25 campaigns")
    if not payload["all_localization_and_typed_path_passed"]:
        raise AssertionError("localization/typed-path replication failed")
    if payload["all_corrected_matched_h0_passed"]:
        raise AssertionError("corrected matched-capacity attribution must remain failed")
    if len(payload["runs"]) != 3:
        raise AssertionError("replication summary must contain three campaigns")
    for run in payload["runs"]:
        if run["selected_groups"] != 96:
            raise AssertionError("a replication did not select 96 heads")
        if run["interaction_pairs"] != 6903 or run["interaction_triples"] != 128:
            raise AssertionError("a fresh interaction audit is incomplete")
        if run["expanded_ppl_ratio_upper"] >= 1.03 or run["expanded_typed"] < 0.95:
            raise AssertionError("a localization/typed-path replication metric failed")
        interval = run["corrected_marginal_correct"]
        if not interval["lower"] <= 0 <= interval["upper"]:
            raise AssertionError("corrected matched-capacity interval unexpectedly excludes zero")


def check_public_paths() -> None:
    offenders = []
    for path in ROOT.rglob("*"):
        if not path.is_file() or path.name == "MANIFEST.sha256":
            continue
        if path.suffix.lower() not in {".md", ".json", ".jsonl", ".csv", ".py", ".cff", ""}:
            continue
        text = path.read_text(encoding="utf-8", errors="replace")
        banned = ("/home/" + "llmuser1/", "/mnt/" + "storage/")
        if any(prefix in text for prefix in banned):
            offenders.append(str(path.relative_to(ROOT)))
    if offenders:
        raise AssertionError("internal absolute paths remain in: " + ", ".join(offenders))


def check_metadata() -> None:
    readme = (ROOT / "README.md").read_text(encoding="utf-8")
    if not readme.startswith("---\n") or "license: cc-by-4.0" not in readme:
        raise AssertionError("README lacks Hugging Face YAML metadata")
    for config in (
        "group-classifications",
        "pair-interactions",
        "computational-taxonomy",
        "use-case-classifications",
        "reported-metrics",
    ):
        if f"config_name: {config}" not in readme:
            raise AssertionError(f"README lacks dataset configuration {config}")
    citation = (ROOT / "CITATION.cff").read_text(encoding="utf-8")
    for required in (
        "cff-version: 1.2.0",
        "Kadyrbek",
        "Mansurova",
        "0000-0002-5461-8899",
        "0000-0002-9680-2758",
    ):
        if required not in citation:
            raise AssertionError(f"citation metadata lacks {required}")
    model = json.loads(
        (ROOT / "raw/reproducibility/model_release.json").read_text(encoding="utf-8")
    )
    if model["hub_commit"] != "60b2ea8dc02c1b847faf3770105fecb2e9a74d7d":
        raise AssertionError("linked model release commit differs")
    if model["physical_modes"] != {"GLOBAL": 288, "LOCAL": 81, "LOCAL_GRAPH": 15}:
        raise AssertionError("linked model release mode counts differ")


def main() -> None:
    subprocess.run([sys.executable, str(ROOT / "scripts/reproduce.py"), "--check"], check=True)
    candidates, selected, modes = check_groups()
    pairs = check_interactions()
    check_postreview()
    check_replications()
    check_public_paths()
    check_metadata()
    files = check_manifest()
    print(
        f"verified {files} files; 384 groups, {candidates} candidates, "
        f"{selected} Q25 selections ({modes['LOCAL']} LOCAL, "
        f"{modes['LOCAL_GRAPH']} LOCAL_GRAPH), {pairs} interactions, post-review confirmation, "
        "and two fresh Q25 campaigns"
    )


if __name__ == "__main__":
    main()