"""Predeclare and verify old inputs before executing any alternative dynamics."""
import ast
from datetime import datetime, timezone
import importlib.metadata
import json
import platform
from pathlib import Path
import shutil
import subprocess
import sys
from context import CFG,ROOT,EXP,MODEL,AC,digest,save,source_hashes


def frozen_integrity():
    sys.path.insert(0,str(ROOT/CFG['prior_model']))
    import audit_semantics as old
    result=old.integrity()
    for p in (ROOT/CFG['prior_model'],AC,ROOT/'registry/feedback-context-review-20260930'):
        result[str(p.relative_to(ROOT))]=old.manifest_check(p,digest)
    assert all(x['pass'] for x in result.values())
    return result


def main():
    assert (MODEL/'oracle_runner.py').is_file()
    assert not (EXP/'protocol').exists(),'Refusing reused experiment protocol'
    for d in ('protocol','external-resources','inputs','components','oracle','regression','audit','performance'):(EXP/d).mkdir()
    source=AC/'external-resources/model.py'
    assert digest(source)=='fc45837d7122c6ce2a7f3f2f23c515992e4b232aadb919efabb72337fac88e4e'
    tree=ast.parse(source.read_text())
    assert all(isinstance(x,(ast.Import,ast.ImportFrom,ast.Assign,ast.FunctionDef,ast.Expr)) for x in tree.body)
    inputs=[source,AC/'external-resources/LICENSE',AC/'external-resources/environment_full.yml',
        AC/'audit/selected-real-edges.csv',AC/'audit/selected-metadata.parquet',ROOT/CFG['prior_model']/'math_reference.py']
    for name in CFG['motifs']:
        inputs.extend([AC/'motifs'/f'{name}-edges.csv',AC/'motifs'/f'{name}-events.parquet',AC/'motifs'/f'{name}-state.npz'])
    save(EXP/'protocol/preregistered.json',dict(config=CFG,timestamp_utc=datetime.now(timezone.utc).isoformat(),
        source_hashes=source_hashes(),input_hashes=[dict(path=str(p.relative_to(ROOT)),sha256=digest(p),bytes=p.stat().st_size) for p in inputs],
        parent_commit=subprocess.check_output(['git','-C',str(ROOT),'rev-parse','HEAD'],text=True).strip(),
        pre_model_execution=True))
    save(EXP/'regression/old-integrity-before.json',frozen_integrity())
    for name in ('model.py','LICENSE','environment_full.yml'):
        dst=EXP/'external-resources'/name
        with (AC/'external-resources'/name).open('rb') as src,dst.open('xb') as out:shutil.copyfileobj(src,out)
        assert digest(dst)==digest(AC/'external-resources'/name)
    versions={n:importlib.metadata.version(n) for n in ('numpy','pandas','pyarrow','torch','scipy')}
    save(EXP/'environment/frozen-scientific-environment.json',dict(python=sys.version,executable=sys.executable,
        platform=platform.platform(),package_versions=versions))
    save(EXP/'environment/bootstrap-notes.json',dict(isolated_venv_only=True,existing_environments_modified=False,
        initial_install_failure='New venv pip22.0.2 lacks --report; upgraded ONLY new venv pip to author-pinned23.0.1 before installing',
        MarkupSafe='Author-pinned1.1.1 used PyPI source distribution and legacy setup.py because no CPython3.10 wheel; other requested core packages used wheels',
        author_environment='Windows conda CPython3.10.11',actual_environment='Linux CPython3.10.12; not binary-identical',
        package_download_provenance='install-report.json contains HTTPS PyPI archive URLs and SHA256 for packages'))
    print('PREPARED: old integrity PASS; independent model hypotheses preregistered',flush=True)


if __name__=='__main__':main()