#!/usr/bin/env python3
import gzip, hashlib, json
from pathlib import Path

root = Path(__file__).parent
manifest = json.loads((root / "metadata/manifest.json").read_text())
rows = tokens = 0
seen = set()
for item in manifest["data_files"]:
    path = root / item["file"]
    if hashlib.sha256(path.read_bytes()).hexdigest() != item["sha256"]:
        raise ValueError(f"checksum mismatch: {path}")
    with gzip.open(path, "rt", encoding="utf-8") as handle:
        for line in handle:
            row = json.loads(line)
            if row["language"] != manifest["language"]:
                raise ValueError(f"language mismatch: {row['id']}")
            if row["id"] in seen:
                raise ValueError(f"duplicate id: {row['id']}")
            seen.add(row["id"])
            roles = [message.get("role") for message in row["messages"]]
            if roles != ["user", "assistant"] * (len(roles) // 2):
                raise ValueError(f"invalid roles: {row['id']}")
            if not 1 <= row["rendered_token_count"] <= 4096:
                raise ValueError(f"invalid length: {row['id']}")
            if row["audit"].get("accepted") is not True:
                raise ValueError(f"unaccepted row: {row['id']}")
            if row["instruction_audit"].get("accepted") is not True:
                raise ValueError(f"unaccepted instruction: {row['id']}")
            if len(row["turn_audits"]) != len(roles) // 2 or any(
                verdict.get("accepted") is not True for verdict in row["turn_audits"]
            ):
                raise ValueError(f"invalid assistant-turn audits: {row['id']}")
            rows += 1
            tokens += row["rendered_token_count"]
if rows != manifest["rows"] or tokens != manifest["rendered_tokens"]:
    raise ValueError("manifest totals do not match data")
print(json.dumps({"rows": rows, "rendered_tokens": tokens, "valid": True}, sort_keys=True))