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

from pathlib import Path
from datetime import datetime
import re
import time
import pymysql
from pymysql.cursors import DictCursor
from playwright.sync_api import sync_playwright, TimeoutError as PWTimeout

# =====================================================
STATE_FILE = Path("medevio_storage.json")   # saved login state from your login script

MYSQL_CFG = dict(
    host="192.168.1.76",
    port=3307,
    user="root",
    password="Vlado9674+",
    database="medevio",
    cursorclass=DictCursor,
    autocommit=False,
)

UUID_COLUMN = "rid"          # column with Medevio UUID
FLAG_COLUMN = "pozchripkavytvoren"    # bool flag we update after success
FLAG_TS_COL = "pozchripka_vytv_at"    # optional timestamp when request created

MESSAGE_TEXT = (
    "Dobrý den, vakcína proti chřipce je k dispozici, "
    "zítra (úterý 23.9) budeme očkovat od 13-17 hodin, "
    "prosím potvrďte jestli můžete přijít a jaký čas se Vám hodí."
)
PATIENT_URL_TMPL = "https://my.medevio.cz/mudr-buzalkova/klinika/pacienti?pacient={uuid}"
RC_DIGITS = re.compile(r"\D+")
# =====================================================

def normalize_rc(rc: str) -> str:
    """Return digits-only RC (removes slash/spaces)."""
    return RC_DIGITS.sub("", rc or "")

def ensure_flag_columns(conn):
    """Create required columns if missing (works for all MySQL/MariaDB)."""
    needed = {
        FLAG_COLUMN: "TINYINT(1) NULL",
        FLAG_TS_COL: "DATETIME NULL",
    }
    with conn.cursor() as cur:
        for col, coldef in needed.items():
            cur.execute("""
                SELECT COUNT(*) AS cnt
                FROM INFORMATION_SCHEMA.COLUMNS
                WHERE TABLE_SCHEMA = DATABASE()
                  AND TABLE_NAME   = 'patients_extracted'
                  AND COLUMN_NAME  = %s
            """, (col,))
            if cur.fetchone()["cnt"] == 0:
                ddl = f"ALTER TABLE `patients_extracted` ADD COLUMN `{col}` {coldef}"
                print("Adding column:", ddl)
                cur.execute(ddl)
    conn.commit()

def fetch_uuid_by_rc(conn, rc_digits: str) -> dict | None:
    """
    Return row with rid (primary key), medevio UUID, jmeno, prijmeni for the given RC.
    Prints the query and parameter for debugging.
    """
    sql = (
        f"SELECT rid, `{UUID_COLUMN}` AS uuid, jmeno, prijmeni, rc "
        "FROM patients_extracted "
        "WHERE REPLACE(REPLACE(rc,'/',''),' ','') = %s "
        "LIMIT 1"
    )
    print("DEBUG SQL:", sql, "| param:", rc_digits)

    with conn.cursor() as cur:
        cur.execute(sql, (rc_digits,))
        row = cur.fetchone()

    print("DEBUG result:", row)
    return row

def mark_flag_success(conn, rid: str):
    """Update the flag once the Medevio request is created."""
    with conn.cursor() as cur:
        cur.execute(
            f"UPDATE patients_extracted "
            f"SET {FLAG_COLUMN}=1, {FLAG_TS_COL}=NOW() "
            f"WHERE rid=%s",
            (rid,)
        )
    conn.commit()

def create_flu_request_for_uuid(uuid: str) -> bool:
    """Automates Medevio UI to create 'Očkování - Chřipka' request and send MESSAGE_TEXT."""
    with sync_playwright() as p:
        browser = p.chromium.launch(headless=False, slow_mo=200)
        context = browser.new_context(storage_state=str(STATE_FILE))
        ptcard = context.new_page()

        url = PATIENT_URL_TMPL.format(uuid=uuid)
        ptcard.goto(url, wait_until="networkidle")

        # ensure patient card loaded
        ptcard.get_by_text("Historie požadavků").wait_for(timeout=15_000)

        # create new request
        ptcard.get_by_role("button", name="Nový požadavek").click()
        ptcard.wait_for_timeout(300)
        ptcard.keyboard.type("očkování - chřipka")
        ptcard.locator("[role='option']", has_text="Očkování - Chřipka").first.click()
        ptcard.get_by_role("button", name="Vytvořit požadavek").click()
        time.sleep(5)
        # wait until back on card
        try:
            ptcard.get_by_text("Historie požadavků").wait_for(timeout=7_000)
        except PWTimeout:
            ptcard.goto(url, wait_until="networkidle")
            ptcard.get_by_text("Historie požadavků").wait_for(timeout=10_000)

        ptcard.reload(wait_until="networkidle")
        ptcard.get_by_text("Historie požadavků").wait_for(timeout=10_000)
        time.sleep(2)

        # open the new request
        try:
            ptcard.locator("div[data-testid='patient-request-item']").first.wait_for(timeout=10_000)
            chripka_card = ptcard.locator("div[data-testid='patient-request-item']").filter(
                has=ptcard.locator("h4:has-text('Očkování - Chřipka')")
            ).first
            chripka_card.click(timeout=5_000)
        except Exception:
            ptcard.locator("div[data-testid='patient-request-item']").first.click(timeout=5_000)

        # send the message
        try:
            ptcard.wait_for_url("**/pozadavky?pozadavek=*", timeout=10_000)
        except PWTimeout:
            pass
        ptcard.get_by_placeholder("Napište odpověď").wait_for(timeout=10_000)
        ptcard.get_by_placeholder("Napište odpověď").fill(MESSAGE_TEXT)

        for sel in [
            "button:has-text('Odeslat')",
            "button:has-text('Odeslat zprávu')",
            "button:has-text('Odeslat SMS')",
            "button:has-text('Odeslat do aplikace')",
        ]:
            try:
                ptcard.click(sel, timeout=4000)
                browser.close()
                return True
            except Exception:
                continue

        browser.close()
        return False

def main():
    rc_input = input("Zadejte RC (s/bez lomítka, Enter pro konec): ").strip()
    # rc_input="320312460"
    if not rc_input:
        print("Konec.")
        return
    rc = normalize_rc(rc_input)

    conn = pymysql.connect(**MYSQL_CFG)
    try:
        ensure_flag_columns(conn)

        row = fetch_uuid_by_rc(conn, rc)
        if not row or not row.get("uuid"):
            print(f"✗ Pacient s RC {rc} nenalezen nebo nemá sloupec {UUID_COLUMN}.")
            return

        print(f"→ Nalezen: {row.get('prijmeni','')} {row.get('jmeno','')} "
              f"| RC {row.get('rc','')} | UUID {row['uuid']} | rid {row['rid']}")

        if create_flu_request_for_uuid(row["uuid"]):
            mark_flag_success(conn, row["rid"])
            print("✅ Požadavek chřipka vytvořen a DB aktualizována.")
        else:
            print("✗ Nepodařilo se odeslat zprávu v požadavku.")

    finally:
        conn.close()

if __name__ == "__main__":
    main()