""" Define custom user panels for the Raspberry Pi Python console for
WeatherFlow Tempest and Smart Home Weather stations.
Copyright (C) 2018-2022 Peter Davis

This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
"""

# customPanels.py

# Load required modules
from kivy.uix.relativelayout import RelativeLayout
from kivy.clock import Clock
from panels.template import panelTemplate
import requests
import xml.etree.ElementTree as ET
import datetime

# ==============================================================================
# TIDES CUSTOM PANEL
# ==============================================================================
class TidesPanel(panelTemplate):
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        self.update_tides()
        Clock.schedule_interval(self.update_tides, 3600) # update every hour

    def update_tides(self, *args):
        # API endpoint URL
        url = "https://api.tidesandcurrents.noaa.gov/api/prod/datagetter?date=today&range=48&station=8466791&product=predictions&datum=MLLW&time_zone=lst_ldt&interval=hilo&units=english&application=DataAPI_Sample&format=xml"

        try:
            # Make a GET request to the endpoint
            response = requests.get(url)

            # Save the API response to a local file
            with open("tidedata.xml", "w") as file:
                file.write(response.text)
                print("Tide data saved as xml file successfully!")

            # call the function to get the tides
            tides = self.get_tides()

            # Update the tides label with the new data
            tides_str = '\n'.join(["{} ({}): {}'".format(self.format_time(tide['attrib']['t']), tide['type'], round(float(tide['attrib']['v']), 1)) for tide in tides])
            self.ids.tides_label.text = tides_str

        except requests.exceptions.RequestException as e:
            # Handle exceptions that may occur during the request
            print("Error getting tide data: ", e)
            self.ids.tides_label.text = "Error getting tide data."

    def get_tides(self):
        # parse the XML file
        tree = ET.parse("tidedata.xml")
        root = tree.getroot()

        # store the parsed data in a variable
        tides = []

        # iterate through the elements in the XML file
        for elem in root:
            tide = {
                'tag': elem.tag,
                'attrib': elem.attrib
            }
            if elem.attrib['type'] == 'H':
                tide['type'] = 'High'
            else:
                tide['type'] = 'Low'
            tides.append(tide)

        # return the stored data
        return tides

    def format_time(self, time):
        # convert the string to a datetime object
        dt = datetime.datetime.strptime(time, '%Y-%m-%d %H:%M')

        # format the datetime object into a 12-hour format string
        return dt.strftime('%I:%M %p')

class TidesButton(RelativeLayout):
    pass