import argparse
import configparser
import logging
import pathlib

import numpy as np
from scipy import interpolate

from .olaflow import OFModel

parser = argparse.ArgumentParser(
    description="Convert swash output to olaFlow input"
)
parser.add_argument("-v", "--verbose", action="count", default=0)
args = parser.parse_args()

logging.basicConfig(level=max((10, 20 - 10 * args.verbose)))
log = logging.getLogger("sws_ola")

log.info("Starting sws -> olaFlow converter")
config = configparser.ConfigParser()
config.read("config.ini")

sws_out = pathlib.Path(config.get("swash", "npz_out"))
sws = np.load(sws_out.joinpath("sws.npz"))

x, t = sws["x"], sws["t"]

olaflow_root = pathlib.Path(config.get("olaflow", "root"))
model = OFModel(olaflow_root)
model.read_mesh()

watl = interpolate.interp1d(x, sws["watl"][680])
alpha_water = np.where(model.z < watl(model.x), 1, 0)

model.write_field("alpha.water", alpha_water)