#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Wed Dec 14 09:50:06 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
import geoxarray
#
if __name__ == '__main__':
    tt.check('end import')
#
#start from here
ifile = 't_ref_max_FLOR_HistRCP45_tigercpu_intelmpi_18_576PE_10ens_1860-2100_Argentina_masked.nc'
ofile = ifile.replace('masked.nc', 'index.nc')
if os.path.exists(ofile):
    print('[exists]:', ofile)
    sys.exit()

#make index
print('loading...')
da = xr.open_dataarray(ifile).load()
daname = da.name
print('making index...')
#the year is defined over Jul-Jun
da = da.geo.fldmean() \
    .rolling(time=7, center=True).mean() \
    .resample(time='AS-JUL').max().sel(time=slice('1860', '2100')) \
    .groupby('time.year').max('time') \
    .pipe(lambda x: x-273.15).assign_attrs(units='degC')

#save
print('saving...')
da.to_dataset(name=daname).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:
        pass
    else:
        plt.show()