"""Independently compare browser responses/decode measurements to the current manifests."""
import json
from pathlib import Path
import shutil
from urllib.parse import urlparse

ROOT = Path(__file__).resolve().parents[4]
EVIDENCE = Path(__file__).resolve().parent
OUTPUT = EVIDENCE / 'browser-final'
report = json.loads((EVIDENCE / 'browser-results.json').read_text())
assert report['stats']['expected'] == 30
assert all(report['stats'][key] == 0 for key in ('unexpected', 'flaky', 'skipped'))
assert report.get('errors', []) == []
expected = {}
for directory in ('audio', 'ambience'):
    manifest = json.loads((ROOT / 'public' / directory / 'manifest.json').read_text())
    for entry in manifest['files']:
        expected[f'/{directory}/{entry["file"]}'] = entry
summary = []
(EVIDENCE / 'screenshots').mkdir()
for project in ('desktop', 'mobile'):
    paths = list(OUTPUT.glob(f'*-{project}/browser-audio-integrity.json'))
    assert len(paths) == 1
    data = json.loads(paths[0].read_text())
    assert len(data['files']) == 109
    assert data['external'] == data['errors'] == data['failed'] == []
    assert {urlparse(row['url']).path for row in data['files']} == set(expected)
    max_rms_difference = max_peak_difference = 0
    for row in data['files']:
        entry = expected[urlparse(row['url']).path]
        assert row['sha256'] == entry['sha256'] and row['bytes'] == entry['bytes']
        assert row['duration'] == entry['duration'] and row['sampleRate'] == 24000 and row['channels'] == 1
        rms_difference = abs(row['rms'] - entry['rms'])
        peak_difference = abs(row['peak'] - entry['peak'])
        assert max(rms_difference, peak_difference) <= 1 / 32768
        max_rms_difference = max(max_rms_difference, rms_difference)
        max_peak_difference = max(max_peak_difference, peak_difference)
    name = f'{project}-audio-integrity.json'
    shutil.copy2(paths[0], EVIDENCE / name)
    summary.append({'project':project, 'chrome':data['chrome'], 'filesMatched':109,
        'externalRequests':0, 'consoleOrPageErrors':0, 'failedRequests':0, 'evidence':name,
        'levelTolerance':1 / 32768, 'maximumRmsDifference':max_rms_difference, 'maximumPeakDifference':max_peak_difference,
        'levelToleranceReason':'One PCM16 step allows browser float decode scaling; SHA-256 and bytes must match exactly.'})
    for source, target in [('home.png','start.png'), ('game.png','game.png'), ('results.png','normal-results.png'), ('early-exit.png','early-exit.png')]:
        matches = list(OUTPUT.glob(f'*-{project}/{source}'))
        assert len(matches) == 1, (project, source, matches)
        shutil.copy2(matches[0], EVIDENCE / 'screenshots' / f'{project}-{target}')
    matches = list(OUTPUT.glob(f'*-{project}/attachments/runtime-audit-*.json'))
    assert len(matches) == 1
    audit = json.loads(matches[0].read_text())
    assert audit['errors'] == audit['failed'] == audit['external'] == []
    shutil.copy2(matches[0], EVIDENCE / f'{project}-runtime-audit.json')
with (EVIDENCE / 'browser-integrity-summary.json').open('x') as out: out.write(json.dumps(summary, indent=2) + '\n')
print(json.dumps({'browserStats':report['stats'], 'integrity':summary}, indent=2))