#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Tue May 21 23:20:43 EDT 2024
if __name__ == '__main__':
    import sys,os
    from misc.timer import Timer
    tt = Timer(f'[{os.getcwd()}] 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
wython = '/tigress/wenchang/wython'
if wython not in sys.path: sys.path.append(wython); print('added to python path:', wython)
#from misc import get_kws_from_argv
import salem
import geoxarray
from misc.seasons import sel_season
#
if __name__ == '__main__':
    tt.check('end import')
#
#start from here
roll_window = 10 #4 #10
season = 'MAM'
ifile = 'precip_FLOR_HistRCP45_tigercpu_intelmpi_18_576PE_10ens_1860-2100_atmos_daily.region.300_312_-35_-25.RioGrande.nc'
ofile = ifile.replace('precip', f'index_{roll_window}day').replace('_atmos_daily.region.300_312_-35_-25', '')
if os.path.exists(ofile):
    print('[exists]:', ofile)
    sys.exit()
da = xr.open_dataarray(ifile)
da = da.assign_coords(lon=da.lon.values-360)
#da.salem.roi(shape=shdf).isel(time=0, ens=0).plot()
#ifile = '../RioGrandeFromBen/RioGrande.shp'
ifile = '../state_Rio_Grande_do_Sul/43UF2500G.shp'
shdf = salem.read_shapefile(ifile)
da = da.geo.fldmean() \
    .rolling(time=roll_window).sum(keep_attrs=True).assign_attrs(units='mm') \
    .pipe(sel_season, season) \
    .groupby('time.year').max('time', keep_attrs=True)
#print(da)
da.to_dataset(name='precip').to_netcdf(ofile)
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 or 'n' in sys.argv:
        pass
    else:
        if 'plt' in globals(): plt.show()