"""
Grid extension for qrm
---
Copyright (C) 2019-2023 classabbyamp, 0x5c

SPDX-License-Identifier: LiLiQ-Rplus-1.1
"""


import gridtools

import discord.ext.commands as commands

import common as cmn


class GridCog(commands.Cog):
    def __init__(self, bot: commands.Bot):
        self.bot = bot

    @commands.command(name="grid", category=cmn.Cats.CALC)
    async def _grid_sq_lookup(self, ctx: commands.Context, lat: float, lon: float):
        ("""Calculates the grid square for latitude and longitude coordinates."""
         """\n\nCoordinates should be in decimal format, with negative being latitude South and longitude West."""
         """\n\nTo calculate the latitude and longitude from a grid locator, use `latlong`""")
        latlong = gridtools.LatLong(lat, lon)
        grid = gridtools.Grid(latlong)

        embed = cmn.embed_factory(ctx)
        embed.title = f"Maidenhead Grid Locator for {latlong.lat:.5f}, {latlong.long:.5f}"
        embed.description = f"**{grid}**"
        embed.colour = cmn.colours.good
        await ctx.send(embed=embed)

    @commands.command(name="latlong", aliases=["latlon", "loc", "ungrid"], category=cmn.Cats.CALC)
    async def _location_lookup(self, ctx: commands.Context, grid: str):
        ("""Calculates the latitude and longitude for the center of a grid locator."""
         """\n\nTo calculate the grid locator from a latitude and longitude, use `grid`"""
         """\n\n*Warning: `ungrid` will be removed soon. Use one of the other names for this command.*""")
        grid_obj = gridtools.Grid(grid)

        embed = cmn.embed_factory(ctx)
        embed.title = f"Latitude and Longitude for {grid_obj}"
        embed.colour = cmn.colours.good
        embed.description = f"**{grid_obj.lat:.5f}, {grid_obj.long:.5f}**"
        if ctx.invoked_with == "ungrid":
            embed.add_field(name="Warning", value=(f"*`{ctx.prefix}ungrid` will be removed soon, use `{ctx.prefix}help "
                                                   "latlong` to see other names for this command.*"))
        await ctx.send(embed=embed)

    @commands.command(name="griddistance", aliases=["griddist", "distance", "dist"], category=cmn.Cats.CALC)
    async def _dist_lookup(self, ctx: commands.Context, grid1: str, grid2: str):
        """Calculates the great circle distance and azimuthal bearing between two grid locators."""
        g1 = gridtools.Grid(grid1)
        g2 = gridtools.Grid(grid2)

        dist, bearing = gridtools.grid_distance(g1, g2)
        dist_mi = 0.6214 * dist

        embed = cmn.embed_factory(ctx)
        embed.title = f"Great Circle Distance and Bearing from {g1} to {g2}"
        embed.description = f"**Distance:** {dist:.1f} km ({dist_mi:.1f} mi)\n**Bearing:** {bearing:.1f}°"
        embed.colour = cmn.colours.good
        await ctx.send(embed=embed)


def setup(bot: commands.Bot):
    bot.add_cog(GridCog(bot))