import gspread
from google.oauth2.service_account import Credentials

SCOPES = [
    "https://www.googleapis.com/auth/spreadsheets",
    "https://www.googleapis.com/auth/drive"
]

def connect():
    creds = Credentials.from_service_account_file("credentials.json", scopes=SCOPES)
    client = gspread.authorize(creds)
    return client


def list_sheets(doc_name):
    client = connect()
    spreadsheet = client.open(doc_name)
    return [ws.title for ws in spreadsheet.worksheets()]


def get_sheet_data(doc_name, sheet_name):
    client = connect()
    sheet = client.open(doc_name).worksheet(sheet_name)
    return sheet.get_all_values()


def ensure_worksheet(doc_name, sheet_name):
    """
    Zwraca worksheet o danej nazwie.
    Tworzy nowy, jeśli nie istnieje.
    """
    client = connect()
    spreadsheet = client.open(doc_name)
    try:
        ws = spreadsheet.worksheet(sheet_name)
    except gspread.exceptions.WorksheetNotFound:
        print(f"➕ Tworzę nowy arkusz: {sheet_name}")
        ws = spreadsheet.add_worksheet(title=sheet_name, rows=100, cols=10)
        ws.append_row(["#", "Link", "Nr zamówienia", "Model"])
    return ws


def append_unique_row(doc_name, sheet_name, row_data):
    """
    Dodaje wiersz tylko, jeśli dany nr zamówienia (kolumna 3) jeszcze nie istnieje.
    """
    client = connect()
    ws = ensure_worksheet(doc_name, sheet_name)

    existing = ws.col_values(3)  # kolumna "Nr zamówienia"
    order_number = str(row_data[2]).strip()

    if order_number in existing:
        print(f"⏭️ Pomijam – nr {order_number} już istnieje w arkuszu {sheet_name}")
        return False

    ws.append_row(row_data, value_input_option="USER_ENTERED")
    print(f"📝 Dodano do {sheet_name}: {row_data}")
    return True