"""
Pomocný skript pro Clauda – spusť na Windows: python db_query.py
Výsledky zapíše do db_query_result.txt
"""
import fdb
import json
import sys

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

results = {}

# 1. Tabulky s klíčovými slovy (soubory, dokumenty)
cur.execute("""
    SELECT RDB$RELATION_NAME
    FROM RDB$RELATIONS
    WHERE RDB$SYSTEM_FLAG = 0 AND RDB$VIEW_BLR IS NULL
    ORDER BY RDB$RELATION_NAME
""")
all_tables = [row[0].strip() for row in cur.fetchall()]

keywords = ['FILE', 'SOUB', 'DOC', 'SCAN', 'OBRAZ', 'IMG', 'ATTACH',
            'EXTERN', 'PRILOHA', 'ZPRAV', 'ARCH', 'PRIL', 'FOTO']
matches = [t for t in all_tables if any(k in t.upper() for k in keywords)]
results['tables_matching'] = matches
results['total_tables'] = len(all_tables)

# 2. Podrobnosti o nalezených tabulkách (sloupce + počet řádků)
table_details = {}
for t in matches:
    try:
        cur.execute(f"SELECT COUNT(*) FROM {t}")
        count = cur.fetchone()[0]
    except:
        count = "error"

    cur.execute("""
        SELECT r.RDB$FIELD_NAME, f.RDB$FIELD_TYPE, f.RDB$FIELD_LENGTH
        FROM RDB$RELATION_FIELDS r
        JOIN RDB$FIELDS f ON f.RDB$FIELD_NAME = r.RDB$FIELD_SOURCE
        WHERE r.RDB$RELATION_NAME = ?
        ORDER BY r.RDB$FIELD_POSITION
    """, (t,))
    cols = [(row[0].strip(), row[1], row[2]) for row in cur.fetchall()]
    table_details[t] = {"count": count, "columns": cols}

results['table_details'] = table_details

# 3. Uložit výsledky
output = []
output.append(f"=== VÝSLEDKY DB PRŮZKUMU ===\n")
output.append(f"Celkem tabulek v DB: {results['total_tables']}\n")
output.append(f"\nTabulky obsahující klíčová slova (soubory/dokumenty):\n")
for t in results['tables_matching']:
    d = results['table_details'].get(t, {})
    output.append(f"\n  ** {t} ** (řádků: {d.get('count', '?')})")
    for col in d.get('columns', []):
        output.append(f"     - {col[0]}  (type={col[1]}, len={col[2]})")

with open('db_query_result.txt', 'w', encoding='utf-8') as f:
    f.write('\n'.join(output))

print("Hotovo! Výsledky jsou v db_query_result.txt")
conn.close()