#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Wed Jun 19 10:49:22 EDT 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
#
if __name__ == '__main__':
    try:
        tt.check('end import')
    except:
        pass
#
#start from here
model = 'CM2.1'
daname = 'tau_y'
years = range(1980,2016+1)
#ifile_template = '/home/wenchang/scratch/FLOR/work/nudgeAllTrop_e2_newdiag_tigercpu_intelmpi_18_576PE/POSTP/yyyy0101.ocean.nc' #FLOR experiment
#ifile_template = '/tiger/scratch/gpfs/wenchang/CM2.1p1/work/nudgeAllTrop_e1_tigercpu_intelmpi_18_80PE/POSTP/yyyy0101.ocean_month.nc'
ifile_template = '/tiger/scratch/gpfs/wenchang/CM2.1p1/work/nudgeAllTrop_FAtauTrop_e1_tigercpu_intelmpi_18_80PE/POSTP/yyyy0101.ocean_month.nc'
ofile = f'{model}.ocean.{daname}.mclim.{years[0]:04d}-{years[-1]:04d}.e1.nc'
if '_e2_' in ifile_template: ofile = ofile.replace('.e1.nc', '.e2.nc')
if os.path.exists(ofile):
    print('[exists]:', ofile)
    sys.exit()
ifiles = [ifile_template.replace('yyyy', f'{year:04d}') for year in years]
print('openning...')
print(ifiles[0])
print('    to')
print(ifiles[-1])
print(len(ifiles), 'files')
ds = xr.open_mfdataset(ifiles)[[daname]]
ds = ds.groupby('time.month').mean('time', keep_attrs=True) #mclim
print('saving...')
ds.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()