import os
import csv
import json

BASE_DIR = os.path.abspath(os.path.join(os.path.dirname(__file__), '../estratti'))

output = {}

for root, _, files in os.walk(BASE_DIR):
    for fname in files:
        if fname.lower().endswith('.csv'):
            fpath = os.path.join(root, fname)
            relpath = os.path.relpath(fpath, BASE_DIR)
            try:
                with open(fpath, encoding='utf-8') as f:
                    reader = csv.reader(f)
                    header = next(reader)
                    row_count = sum(1 for _ in reader)
                output[relpath] = {
                    "header": header,
                    "rows": row_count
                }
                print(f"[OK] {relpath}: {len(header)} colonne, {row_count} righe")
            except Exception as e:
                output[relpath] = {"error": str(e)}
                print(f"[ERRORE] {relpath}: {e}")

with open("panoramica_estratti.json", "w", encoding="utf-8") as out:
    json.dump(output, out, indent=2, ensure_ascii=False)

print("\nPanoramica salvata in 'panoramica_estratti.json'. Inviami questo file per analisi delle relazioni!")