#
# Copyright 2020, 2022 Hannes Holey
#
# ### MIT License
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#


from argparse import ArgumentParser
import matplotlib.pyplot as plt
import matplotlib.ticker as tk
from mpl_toolkits.axes_grid1 import make_axes_locatable

from hans.plottools import DatasetSelector


def get_parser():
    parser = ArgumentParser()
    parser.add_argument('-p', dest="path", default="data", help="path (default: data)")
    parser.add_argument('-v', dest="key", default=None, choices=[None, "rho", "p", "jx", "jy"], help="variable (default: None)")

    return parser


def main():

    ylabels = {"rho": r"Density $\rho$",
               "p": r"Pressure $p$",
               "jx": r"Momentum density $j_x$",
               "jy": r"Momentum denisty $j_y$"}

    parser = get_parser()
    args = parser.parse_args()

    files = DatasetSelector(args.path, mode="single")
    fn, = files.get_filenames()
    zdata, = files.get_field(key=args.key)
    print("Plotting ", fn)

    if args.key is None:
        fig, ax = plt.subplots(2, 2, sharex=True, figsize=(12.8, 9.6))

        for key, axis in zip(zdata.keys(), ax.flat):
            im = axis.imshow(zdata[key].T, extent=(0, 1, 0, 1))

            divider = make_axes_locatable(axis)
            cax = divider.append_axes("right", size="5%", pad=0.1)

            fmt = tk.ScalarFormatter(useMathText=True)
            fmt.set_powerlimits((0, 0))

            cbar = plt.colorbar(im, cax=cax, format=fmt, orientation="vertical")
            cbar.set_label(ylabels[key])

            axis.set_xlabel(r"$x/L_x$")
            axis.set_ylabel(r"$y/L_y$")

    else:
        fig, ax = plt.subplots(1, figsize=(6.4, 4.8), tight_layout=True)
        im = ax.imshow(zdata.T, extent=(0, 1, 0, 1))

        divider = make_axes_locatable(ax)
        cax = divider.append_axes("right", size="5%", pad=0.1)

        fmt = tk.ScalarFormatter(useMathText=True)
        fmt.set_powerlimits((0, 0))

        cbar = plt.colorbar(im, cax=cax, format=fmt, orientation="vertical")
        cbar.set_label(ylabels[args.key])

        ax.set_xlabel(r"$x/L_x$")
        ax.set_ylabel(r"$y/L_y$")

    plt.show()


if __name__ == "__main__":
    main()
