# -*- coding: utf-8 -*-
import sys, io
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', errors='replace')
import fdb

conn = fdb.connect(
    dsn=r'localhost:c:\medicus 3\data\medicus.fdb',
    user='SYSDBA', password='masterkey', charset='win1250'
)
cur = conn.cursor()

for table in ['ED_BOOKOFSUBMISSIONS', 'ED_BOOKOFSUBMISSIONATTACH', 'ED_MAILBOXMESSAGE', 'ED_STORAGE']:
    print(f"\n{'='*70}")
    print(f"TABULKA: {table}")
    print('='*70)

    cur.execute(f"""
        SELECT rf.RDB$FIELD_NAME
        FROM RDB$RELATION_FIELDS rf
        WHERE rf.RDB$RELATION_NAME = '{table}'
        ORDER BY rf.RDB$FIELD_POSITION
    """)
    cols = [r[0].strip() for r in cur.fetchall()]
    print(f"Sloupce: {cols}")

    cur.execute(f"SELECT COUNT(*) FROM {table}")
    print(f"Počet: {cur.fetchone()[0]}")

    # BLOB sloupce vynech
    cur.execute(f"""
        SELECT rf.RDB$FIELD_NAME
        FROM RDB$RELATION_FIELDS rf
        JOIN RDB$FIELDS f ON f.RDB$FIELD_NAME = rf.RDB$FIELD_SOURCE
        WHERE rf.RDB$RELATION_NAME = '{table}'
        AND f.RDB$FIELD_TYPE = 261
    """)
    blob_cols = {r[0].strip() for r in cur.fetchall()}
    safe = [c for c in cols if c not in blob_cols]

    # Najdi razeni
    order_col = next((c for c in ['CREATEDATE','SENTDATE','CREATED','ODESLANO','DATUM','ID'] if c in cols), cols[0])

    try:
        cur.execute(f"SELECT FIRST 10 {', '.join(safe)} FROM {table} ORDER BY {order_col} DESC")
        rows = cur.fetchall()
        print(f"\nPosledních 10 (ORDER BY {order_col} DESC):")
        for row in rows:
            print(f"  {dict(zip(safe, row))}")
    except Exception as e:
        print(f"Chyba SELECT: {e}")
        # Zkus bez order
        try:
            cur.execute(f"SELECT FIRST 5 {', '.join(safe)} FROM {table}")
            rows = cur.fetchall()
            for row in rows:
                print(f"  {dict(zip(safe, row))}")
        except Exception as e2:
            print(f"Chyba i bez ORDER: {e2}")

conn.close()
print("\nHotovo.")