#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Sun Feb 19 11:28:20 EST 2023
if __name__ == '__main__':
    import sys,os
    from misc.timer import Timer
    tt = Timer(f'[{os.getcwd()}] 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
from misc import get_kws_from_argv
from misc.modelout import update_modelout_data
import geoxarray
#
if __name__ == '__main__':
    tt.check('end import')
#
#start from here
#daname = get_kws_from_argv('daname', 't_surf')
daname = None
model = 'CM2.1p1'
expname = 'CTL1860_1-4-1xCO2_tigercpu_intelmpi_18_80PE'
dsname = 'ice_month'
#func = lambda x: x.load().geo.fldmean()
S = 4*np.pi*6370**2/1e6 #earth surface area, million km**2
units = 'million km**2'
funcname = 'glbSIE'
funcname = get_kws_from_argv('funcname', funcname)
if funcname == 'nhSIE':
    func = lambda ds: (ds['EXT'].load()*ds['CELL_AREA'].load()*S).sel(yt=slice(0,None)).sum(['xt', 'yt']).assign_attrs(units=units, long_name='NH sea ice extent')
elif funcname == 'shSIE':
    func = lambda ds: (ds['EXT'].load()*ds['CELL_AREA'].load()*S).sel(yt=slice(None,0)).sum(['xt', 'yt']).assign_attrs(units=units, long_name='SH sea ice extent')
elif funcname == 'glbSIE':    
    func = lambda ds: (ds['EXT'].load()*ds['CELL_AREA'].load()*S).sum(['xt', 'yt']).assign_attrs(units=units, long_name='global sea ice extent')

da = update_modelout_data(daname=daname, model=model, expname=expname, dsname=dsname, func=func, funcname=funcname)
units = da.attrs['units']
 
 
if __name__ == '__main__':
    from wyconfig import * #my plot settings
    da_ = da.groupby('time.year').mean('time').rolling(year=9, center=True, min_periods=1).mean().assign_attrs(units=units)
    da_.plot(label='1-4-1xCO2')
    da_.sel(year=slice(1140,1001,-1)).assign_coords(year=range(1141,1280+1)).plot(ls='--', label='mirror recovery')

    ax = plt.gca()
    ax.legend()
    ymin = np.floor(da_.min())
    ymax = ymin + 7
    ax.set_ylim(ymin, ymax)
    
    #savefig
    if 'savefig' in sys.argv or 's' in sys.argv:
        #figname = __file__.replace('.py', '.png')
        if daname is None:
            figname = f'{funcname}_{model}_{expname}.png'
        else:
            figname = f'{daname}_{model}_{expname}_{funcname}.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 or 'n' in sys.argv:
        pass
    else:
        if 'plt' in globals(): plt.show()