#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Wed Dec 14 09:30:23 EST 2022
if __name__ == '__main__':
    import sys
    from misc.timer import Timer
    tt = Timer('start ' + ' '.join(sys.argv))
import sys, os.path, os, glob, datetime
import xarray as xr, numpy as np, pandas as pd, matplotlib.pyplot as plt
#more imports
from misc.wyregionmask import where_region
#
if __name__ == '__main__':
    tt.check('end import')
#
#start from here
#ifiles = 't_ref_max_FLOR_HistRCP45_tigercpu_intelmpi_18_576PE_ens??_1860-2100_Argentina.nc'
ifiles = 't_ref_max_AM2.5C360_amipHadISSTrcp45_tigercpu_intelmpi_18_1080PE_ens??_1871-2050_Argentina.nc'
ofile = ifiles.replace('ens??', '3ens').replace('.nc', '_masked.nc')
if os.path.exists(ofile):
    print('[exists]:', ofile)
    sys.exit()
#read region mask
df = pd.read_csv('region.txt', sep='\s+')
lon, lat = df['x'], df['y']
#read data
print('loading...')
ds = xr.open_mfdataset(ifiles).load()
print('mask region...')
ds = ds.pipe(where_region, lon=lon, lat=lat)
print('saving...')
encoding = {vname:{'zlib': True, 'complevel': 1, 'dtype': 'float32'} for vname in list(ds.data_vars)}
ds.to_netcdf(ofile, encoding=encoding)
print('[saved]:', ofile)
 
if __name__ == '__main__':
    #from wyconfig import * #my plot settings
    
    #savefig
    if 'savefig' in sys.argv or 's' in sys.argv:
        figname = __file__.replace('.py', f'.png')
        if 'overwritefig' in sys.argv or 'o' in sys.argv:
            wysavefig(figname, overwritefig=True)
        else:
            wysavefig(figname)
    tt.check(f'**Done**')
    print()
    if 'notshowfig' in sys.argv:
        pass
    else:
        plt.show()