#!/usr/bin/env python3
"""1) Löscht Überlappungsbereich 2) rekonstruiert sauber mit neuen Schwellen."""
import json
from urllib.parse import quote
from urllib.request import Request, urlopen

INFLUX='http://localhost:8086'; DB='iobroker'

def qget(sql):
    with urlopen(f'{INFLUX}/query?db={DB}&epoch=ns&q={quote(sql)}', timeout=30) as r:
        return json.loads(r.read().decode())

def qpost(sql):
    url = f'{INFLUX}/query?db={DB}'
    req = Request(url, data=f'q={quote(sql)}'.encode(), method='POST',
                  headers={'Content-Type':'application/x-www-form-urlencoded'})
    with urlopen(req, timeout=30) as r:
        return json.loads(r.read().decode())

# Zeitraum: ab erstem "toten" Zeitpunkt bis eine Minute vor Live-Service-Start
# Live-Start war 2026-04-20 21:45 MESZ = 19:45 UTC
# Rekonstruktion soll 06.04. mittags bis 20.04. 21:44 MESZ
START_UTC = '2026-04-06T02:00:00Z'  # 04:00 MESZ 06.04.
END_UTC   = '2026-04-20T19:45:00Z'  # 21:45 MESZ 20.04.

print('=== VOR DELETE ===')
for m in ('brennerstarts','brennerstatus','brennerlaufzeit'):
    r = qget(f'SELECT count(value) FROM {m} WHERE time >= \'{START_UTC}\' AND time < \'{END_UTC}\'')
    s = r['results'][0].get('series',[])
    c = s[0]['values'][0][1] if s else 0
    print(f'  {m}: {c} Zeilen im Rekonstruktions-Fenster')

print('\n=== DELETE ===')
for m in ('brennerstarts','brennerstatus','brennerlaufzeit'):
    r = qpost(f'DELETE FROM {m} WHERE time >= \'{START_UTC}\' AND time < \'{END_UTC}\'')
    print(f'  {m}: {r}')

print('\n=== NACH DELETE ===')
for m in ('brennerstarts','brennerstatus','brennerlaufzeit'):
    r = qget(f'SELECT count(value) FROM {m} WHERE time >= \'{START_UTC}\' AND time < \'{END_UTC}\'')
    s = r['results'][0].get('series',[])
    c = s[0]['values'][0][1] if s else 0
    print(f'  {m}: {c} Zeilen verbleibend')