#!/usr/bin/env python3
"""
Precision midnight booking for CitaPrevia Portugal Tardes (cola I).
Runs in background, pre-establishes TLS at 23:59:55, fires at 00:00:00.

User: Humberto Normey Gomez, NIE X2491454W
Service: S (SAIC), Cola: I (Portugal Tardes, Padron), Fecha: 19-10-2026
"""
import http.client
import ssl
import time
import json
import sys
from datetime import datetime

# ── User Data ──────────────────────────────────────────────
SERVICIO   = "S"
COLA       = "I"
FECHA      = "19-10-2026"
DOC        = "X2491454W"
NOMBRE     = "Humberto"
APE1       = "Normey"
APE2       = "Gomez"
TIPO       = "2"      # NIE
TEL        = "687915599"
EMAIL      = "hj@normey.net"
IMPUESTOS  = "N"
COMENTARIO = "Solicitud de Alta en el Padrón"
IP         = "0.0.0.0"

# Slots in priority order: 16:00 first, then earliest first
HORAS = ["16:00", "14:30", "14:45", "15:00", "15:15", "15:30", "15:45", "16:15", "16:30"]

HOST = "webservices.alicante.es"
PORT = 443
PATH = "/WsCitaPreviaPublic-RESTWebService-context-root/rest/1/ScCitaVo1"

CT = "application/vnd.oracle.adf.action+json"

# ── Target: Oct 4, 2026 00:00:00 CEST ─────────────────────
target_ts       = datetime(2026, 10, 4, 0, 0, 0).timestamp()
preconnect_ts   = target_ts - 5   # pre-establish TLS 5s before midnight

def log(msg):
    ts = datetime.now().strftime('%H:%M:%S.%f')[:-3]
    print(f"[{ts}] {msg}", flush=True)

def build_body(hora, motivo_ts):
    data = {
        "name": "insertarCitaPrevia",
        "parameters": [
            {"servicio":   SERVICIO},
            {"cola":       COLA},
            {"fecha":      FECHA},
            {"hora":       hora},
            {"documento":  DOC},
            {"ip":         IP},
            {"nombre":     NOMBRE},
            {"apellido1":  APE1},
            {"apellido2":  APE2},
            {"tipo":       TIPO},
            {"telefono":   TEL},
            {"email":      EMAIL},
            {"impuestos":  IMPUESTOS},
            {"motivo":     f"{motivo_ts} {COMENTARIO}"},
            {"procedencia":"NULO"}
        ]
    }
    return json.dumps(data, separators=(',', ':'))

def build_check_body(hora):
    """getHorasCitas to check availability"""
    data = {
        "name": "getHorasCitas",
        "parameters": [
            {"servicio": SERVICIO},
            {"cola": COLA},
            {"fecha": FECHA}
        ]
    }
    return json.dumps(data, separators=(',', ':'))

# ── Main ───────────────────────────────────────────────────
log("Starting midnight booking bot")
log(f"Target midnight: {datetime.fromtimestamp(target_ts)}")
log(f"Pre-connect time: {datetime.fromtimestamp(preconnect_ts)}")

# Phase 1: Sleep until 5 seconds before midnight
now = time.time()
if now < preconnect_ts:
    sleep_dur = preconnect_ts - now
    log(f"Sleeping {sleep_dur:.0f}s until pre-connect phase...")
    time.sleep(sleep_dur)

# Phase 2: Pre-establish TLS connection
log("Pre-establishing TLS connection...")
context = ssl.create_default_context()
conn = http.client.HTTPSConnection(HOST, PORT, context=context, timeout=12)
try:
    conn.connect()
    log("TLS connection established ✓")
except Exception as e:
    log(f"Connection failed: {e}")
    log("Will retry at midnight...")
    conn = None

# Phase 3: Busy-wait until midnight
log("Entering busy-wait until midnight...")
while time.time() < target_ts:
    pass

# Phase 4: At midnight — fire requests
log("=== MIDNIGHT! Firing booking requests ===")
success = False

for hora in HORAS:
    motivo_ts = datetime.now().strftime('%H:%M:%S')
    body = build_body(hora, motivo_ts)

    if conn is None:
        # Fallback: re-establish connection
        log(f"Reconnecting for {hora}...")
        context = ssl.create_default_context()
        conn = http.client.HTTPSConnection(HOST, PORT, context=context, timeout=12)
        conn.connect()

    headers = {
        "Content-Type": CT,
        "Origin": "https://citaprevia.alicante.es",
        "Referer": "https://citaprevia.alicante.es/CitaPrevia/",
    }

    log(f"→ Attempting: {FECHA} at {hora}")
    try:
        conn.request("POST", PATH, body=body, headers=headers)
        response = conn.getresponse()
        raw = response.read().decode('utf-8')

        # Parse response
        try:
            resp_json = json.loads(raw)
            result = resp_json.get('result', '')
        except:
            result = raw[:200] if raw else "(empty response)"

        log(f"  Response ({response.status}): {result}")

        if result == "Cita insertada":
            log(f"")
            log(f"*** ✅ CITA BOOKED! ***")
            log(f"   Servicio: {SERVICIO} (SAC/SAIC)")
            log(f"   Cola: {COLA} (C/PORTUGAL 17 TARDE - PADRÓN)")
            log(f"   Fecha: {FECHA}")
            log(f"   Hora: {hora}")
            log(f"   Nombre: {NOMBRE} {APE1} {APE2}")
            log(f"   NIE: {DOC}")
            log(f"   Motivo: {motivo_ts} {COMENTARIO}")
            log(f"")
            log(f"   Verify: getHorasCitas for {FECHA} — slot {hora} should be gone")
            log(f"   View cita: https://citaprevia.alicante.es/CitaPrevia/#/verCita/{DOC}/{SERVICIO}{COLA}{DOC}/OLD")
            success = True
            break

        elif result == "Fecha posterior al limite permitido":
            log(f"   → Timing issue (server clock?). Retrying immediately...")
            time.sleep(0.05)

        elif result == "Hora no permitida":
            log(f"   → Slot taken or invalid. Trying next...")

        else:
            log(f"   → Unexpected response. Stopping.")
            break

    except Exception as e:
        log(f"  → Error: {e}")
        # Try re-establishing connection
        try:
            conn.close()
            context = ssl.create_default_context()
            conn = http.client.HTTPSConnection(HOST, PORT, context=context, timeout=12)
            conn.connect()
            log("   Connection re-established.")
        except:
            log("   Failed to re-establish connection.")
            break

if not success:
    log("")
    log("❌ All slots failed. The 9 slots at Oct 19 may have been grabbed by bots.")
    log("   Check getHorasCitas manually for remaining availability.")

log("Script finished.")