#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import pymysql
import requests
from pathlib import Path
from datetime import datetime

# ================================
# 🔧 CONFIGURATION
# ================================
TOKEN_PATH = Path("token.txt")
CLINIC_SLUG = "mudr-buzalkova"

LIMIT = 300   # download the latest 300 requests

DB_CONFIG = {
    "host": "192.168.1.76",
    "port": 3307,
    "user": "root",
    "password": "Vlado9674+",
    "database": "medevio",
    "charset": "utf8mb4",
    "cursorclass": pymysql.cursors.DictCursor,
}

GRAPHQL_QUERY = r"""
query ClinicRequestGrid_ListPatientRequestsForClinic2(
  $clinicSlug: String!,
  $queueId: String,
  $queueAssignment: QueueAssignmentFilter!,
  $pageInfo: PageInfo!,
  $locale: Locale!,
  $state: PatientRequestState
) {
  requestsResponse: listPatientRequestsForClinic2(
    clinicSlug: $clinicSlug,
    queueId: $queueId,
    queueAssignment: $queueAssignment,
    pageInfo: $pageInfo,
    state: $state
  ) {
    count
    patientRequests {
      id
      displayTitle(locale: $locale)
      createdAt
      updatedAt
      doneAt
      removedAt
      extendedPatient {
        name
        surname
        identificationNumber
      }
    }
  }
}
"""

# ================================
# TOKEN
# ================================
def read_token(p: Path) -> str:
    tok = p.read_text(encoding="utf-8").strip()
    if tok.startswith("Bearer "):
        return tok.split(" ", 1)[1]
    return tok

# ================================
# DATE PARSER
# ================================
def to_mysql_dt(iso_str):
    if not iso_str:
        return None
    try:
        dt = datetime.fromisoformat(iso_str.replace("Z", "+00:00"))
        return dt.strftime("%Y-%m-%d %H:%M:%S")
    except:
        return None

# ================================
# UPSERT
# ================================
def upsert(conn, r):
    p = (r.get("extendedPatient") or {})
    sql = """
        INSERT INTO pozadavky (
            id, displayTitle, createdAt, updatedAt, doneAt, removedAt,
            pacient_jmeno, pacient_prijmeni, pacient_rodnecislo
        ) VALUES (%s,%s,%s,%s,%s,%s,%s,%s,%s)
        ON DUPLICATE KEY UPDATE
            displayTitle=VALUES(displayTitle),
            updatedAt=VALUES(updatedAt),
            doneAt=VALUES(doneAt),
            removedAt=VALUES(removedAt),
            pacient_jmeno=VALUES(pacient_jmeno),
            pacient_prijmeni=VALUES(pacient_prijmeni),
            pacient_rodnecislo=VALUES(pacient_rodnecislo)
    """
    vals = (
        r.get("id"),
        r.get("displayTitle"),
        to_mysql_dt(r.get("createdAt")),
        to_mysql_dt(r.get("updatedAt")),
        to_mysql_dt(r.get("doneAt")),
        to_mysql_dt(r.get("removedAt")),
        p.get("name"),
        p.get("surname"),
        p.get("identificationNumber"),
    )
    with conn.cursor() as cur:
        cur.execute(sql, vals)
    conn.commit()

# ================================
# FETCH LATEST 300 REQUESTS
# ================================
def fetch_latest_requests(headers):
    vars = {
        "clinicSlug": CLINIC_SLUG,
        "queueId": None,
        "queueAssignment": "ANY",
        "pageInfo": {"first": LIMIT, "offset": 0},
        "locale": "cs",
        "state": "DONE"  # ALL STATES (ACTIVE, DONE, REMOVED)
    }

    payload = {
        "operationName": "ClinicRequestGrid_ListPatientRequestsForClinic2",
        "query": GRAPHQL_QUERY,
        "variables": vars,
    }

    r = requests.post("https://api.medevio.cz/graphql", json=payload, headers=headers)
    r.raise_for_status()

    data = r.json()["data"]["requestsResponse"]
    return data.get("patientRequests", [])

# ================================
# MAIN
# ================================
def main():
    token = read_token(TOKEN_PATH)
    headers = {
        "Authorization": f"Bearer {token}",
        "Content-Type": "application/json",
        "Accept": "application/json",
    }

    conn = pymysql.connect(**DB_CONFIG)

    print(f"\n=== Downloading last {LIMIT} requests @ {datetime.now():%Y-%m-%d %H:%M:%S} ===")

    requests_list = fetch_latest_requests(headers)

    print(f"📌 Requests returned: {len(requests_list)}")

    for r in requests_list:
        upsert(conn, r)

    conn.close()
    print("\n✅ Done. Latest requests synced.\n")


if __name__ == "__main__":
    main()