#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Fri Mar  7 02:06:42 PM EST 2025
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 misc.seasons import sel_season
#
if __name__ == '__main__':
    try:
        tt.check('end import')
    except:
        pass
#
#start from here
season = get_kws_from_argv('season', 'ASO')
dsname = get_kws_from_argv('dsname', 'PI')
ifile = f'{dsname}_ERA5_1979-2024.nc'
da = xr.open_dataarray(ifile).load()
#mclim
with xr.set_options(keep_attrs=True):
    da_clim = da.groupby('time.month').mean('time')
    da = da.groupby('time.month') - da_clim
    da = da.pipe(sel_season, season).groupby('time.year').mean('time')
    daa = da.sel(lon=slice(260,360), lat=slice(30,0))
 
 
if __name__ == '__main__':
    from wyconfig import * #my plot settings
    from geoplots import mapplot
    add_colorbar = True if 'add_colorbar' in sys.argv else False
    if dsname in ('PI',):
        vmax = 20
    elif dsname in ('Vshear',):
        vmax = 10
    elif dsname in ('omega500',):
        vmax = 0.1 
    else:
        vmax = None
    fig,axes = plt.subplots(2, 2, figsize=(8,6))
    years = [2005, 2010, 2023, 2024]
    for ax,year in zip(axes.flat, years):
        im = daa.sel(year=year).plot(ax=ax, levels=21, vmax=vmax, center=0, add_colorbar=add_colorbar, extend='both')
        plt.sca(ax)
        mapplot(fill_continents=True)
    fig.colorbar(im, ax=axes, orientation='horizontal', shrink=0.8, label=f'{season} {dsname} [{daa.attrs["units"]}]')

    #savefig
    if 'savefig' in sys.argv or 's' in sys.argv:
        figname = __file__.replace('.py', f'__{season}_{dsname}.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()