#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Fri Nov 22 15:17:19 EST 2024
if __name__ == '__main__':
    import sys,os
    try:
        from misc.timer import Timer
        tt = Timer(f'[{os.getcwd()}] start ' + ' '.join(sys.argv))
    except:
        pass
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
from xtc import wherebasin
import geoxarray
#
if __name__ == '__main__':
    try:
        tt.check('end import')
    except:
        pass
#
#start from here
basin = get_kws_from_argv('basin', 'NA')
#ifile_default = 'prob_HIRAM_amipLMR2019SST0850ic_tigercpu_intelmpi_18_540PE_ens01_0850-1999.nc'
#ifile_default = 'prob_HIRAM_amipHadISSTlongChancorr_tigercpu_intelmpi_18_540PE_extend2019-2021_5ens_1871-2021.nc'
#ifile_default = 'spi_AM2.5C360_amipHadISSTrcp45_tigercpu_intelmpi_18_1080PE_ens16_1871-2100.nc'
#ifile = get_kws_from_argv('ifile', ifile_default)
dsname = get_kws_from_argv('dsname', 'pvi')
ifile = glob.glob(f'{dsname}_*2100.nc')[0]
if ifile.startswith('spi'):
    lats = slice(5,30) #lat range
#elif ifile.startswith('pvi'):
else:
    lats = slice(10,30) #lat range
ofile = ifile.replace('.nc', f'_{basin}mean.nc')
if os.path.exists(ofile):
    print('[exists]:', ofile)
    sys.exit()

#read
print('loading...')
ds = xr.open_dataset(ifile).load()
daname = list(ds.data_vars)[0]
print('calculating basin mean...')
da = ds[daname].pipe(wherebasin, basin)
#ds['prob'].isel(time=0).plot()
da = da.sel(lat=lats).geo.fldmean()

#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)
 
    try:
        tt.check(f'**Done**')
    except:
        pass
    print()
    if 'notshowfig' in sys.argv or 'n' in sys.argv:
        pass
    else:
        if 'plt' in globals(): plt.show()