#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Tue Jun 29 16:14:32 EDT 2021
if __name__ == '__main__':
    from misc.timer import Timer
    tt = Timer(f'start {__file__}')
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
ofile_nc = __file__.replace('.py', '.nc')
ofile_csv = __file__.replace('.py', '.csv')
daname = 't_ref_max'
daname_new = 'TXx'
rename_grid = lambda x: x.rename(grid_xt='lon', grid_yt='lat')
sel_region = lambda x: x.sel(lon=slice(360-123, 360-119), lat=slice(47, 52))
years = range(101,1001)
idir = '/tigress/wenchang/MODEL_OUT/CTL1860_v201904_tigercpu_intelmpi_18_576PE/POSTP'
ifiles = [os.path.join(idir, f'{year:04d}0101.atmos_month.nc') for year in years]
print('openning...')
da = xr.open_mfdataset(ifiles)[daname].pipe(rename_grid)
print('loading...')
da = da.pipe(sel_region).load() 
print('calculating...')
da = da.groupby('time.year').max('time').geo.fldmean()
print('saving...')
da.to_dataset(name=daname_new).to_netcdf(ofile_nc)
print('[saved]:', ofile_nc)
da.rename(daname_new).to_dataframe().to_csv(ofile_csv)
print('[saved]:', ofile_csv)
 
if __name__ == '__main__':
    #from wyconfig import * #my plot settings
    
    #savefig
    if 'savefig' in sys.argv:
        figname = __file__.replace('.py', f'.png')
        wysavefig(figname)
    tt.check(f'**Done**')
    plt.show()