#!/usr/bin/env python3
"""Print a compact human-readable summary for one dataset sample."""
import json
import sys
from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]
INDEX = ROOT / "annotations" / "metadata_extended.jsonl"
SAMPLE_ID = sys.argv[1] if len(sys.argv) > 1 else "CBX100_0001"

sample = None
with INDEX.open(encoding="utf-8") as handle:
    for line in handle:
        candidate = json.loads(line)
        if candidate["sample_id"] == SAMPLE_ID:
            sample = candidate
            break

if sample is None:
    raise SystemExit(f"Unknown sample_id: {SAMPLE_ID}")

print(f"sample_id : {sample['sample_id']}")
print(f"difficulty: {sample['label']}")
print(f"split     : {sample['split']}")
print(f"author    : {sample['source']['author']}")
print(f"source    : {sample['source']['provenance']}")
print(f"triangles : {sample['geometry']['clean']['triangle_count']}")
print(f"description.zh: {sample['descriptions']['zh']}")
print("modalities:")
for key, value in sample["modalities"].items():
    print(f"  {key:20s} {ROOT / value}")