#!/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').replace('get_', 'data_')
if os.path.exists(ofile_nc):
    da = xr.open_dataarray(ofile_nc)
    print('[loaded]:', ofile_nc)
else:
    daname = 't_ref_max'
    daname_new = 'tmax'
    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))
    sel_region = lambda x: x.sel(lon=slice(360-125, 360-117), lat=slice(43, 54))
    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_daily.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('saving...')
    encoding = {daname_new: dict(zlib=True, complevel=1)}
    da.to_dataset(name=daname_new).to_netcdf(ofile_nc, encoding=encoding)
    print('[saved]:', ofile_nc)
 
if __name__ == '__main__':
    """
    from wyconfig import * #my plot settings
    from geoplots import mapplot
    fig, ax = plt.subplots(figsize=(6,6))
    da.mean('year').pipe(lambda x: x-273.15).assign_attrs(units='$^\circ$C').plot.contourf(ax=ax, levels=np.arange(20,41), extend='both')
    mapplot(ax=ax, xticks=np.arange(360-125, 360-117+1), yticks=np.arange(43, 54+1))
    """
    
    #savefig
    if 'savefig' in sys.argv:
        figname = __file__.replace('.py', f'.png')
        wysavefig(figname)
    tt.check(f'**Done**')
    plt.show()