"""
Custom Node class for OdiParPack
"""

import math

class Node:
    """
    Attributes
    ----------
    index : int
        Index in some arrays
    ubigeo : str
        6 digit ID
    lat : float
        Latitud (angulo de los Paralelos) en grados sexagesimales
    lon : float
        Longitud (angulo de los Meridianos) en grados sexagesimales
    is_depot : bool
    demand : int
    ready_time : float
    due_time : float
    service_time : float
    x : float
        Aproximacion local, en Km respecto
    y : float
        Aproximacion local, en Km respecto ("Lima")

    Notes
    -----
    Web Mercator projection (BAD):

        x = floor(256 / (2 * math.pi) * 2**(zoom_level) * (lon + math.pi))
        y = floor(265 / (2 * math.pi) * 2**(zoom_level) * (math.pi - math.ln(math.tan( math.pi / 4 + lat / 2 ))))

        x = R * lon
        y = R * ln(tan(pi/4 + lat/2)

    Both `lon` and `lat` in radians.

    "Lima": -12.04591952,-77.03049615  (lat, long)
    """

    def __init__(self, index: int, ubigeo, lat, lon, is_depot,
                 demand, ready_time, due_time, service_time):
        super()
        self.index = index
        self.ubigeo = ubigeo

        if is_depot:
            self.is_depot = True
        else:
            self.is_depot = False

        earth_radius_km = 6371  # Avg. radius
        lima_lat = -12.04591952
        lima_lon = -77.03049615

        self.lat = lat
        self.lon = lon
        self.x = (lon - lima_lon) * (math.pi / 180) * earth_radius_km
        self.y = (lat - lima_lat) * (math.pi / 180) * earth_radius_km
        self.x = round(self.x, 3)
        self.y = round(self.y, 3)
        self.demand = demand
        self.ready_time = 0  # ready_time
        self.due_time = due_time
        self.service_time = service_time