#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Mon Jul  1 14:00:12 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
daname = get_kws_from_argv('daname', 't_surf')
dsname = get_kws_from_argv('dsname', 'atmos_month')
years = range(1901,2000+1)
ifiles = [f'/tiger/scratch/gpfs/wenchang/FLOR/work/CTL1990_v201905_FA_tigercpu_intelmpi_18_576PE/POSTP/{yyyy}0101.{dsname}.nc' for yyyy in years]
ds_fa = xr.open_mfdataset(ifiles)
ifiles = [f'/tigress/wenchang/MODEL_OUT/CTL1990_v201905_tigercpu_intelmpi_18_576PE/POSTP/{yyyy}0101.{dsname}.nc' for yyyy in years]
ds = xr.open_mfdataset(ifiles)

if __name__ == '__main__':
    from wyconfig import * #my plot settings
    from geoplots import mapplot
    with xr.set_options(keep_attrs=True):
        da = ds[daname].mean('time')
        da_fa = ds_fa[daname].mean('time')
        #daa = ds_fa[daname].mean('time') - ds[daname].mean('time')
        daa = da_fa - da
        if daname == 'precip': 
            da *= 24*3600
            da.attrs['units'] = 'mm/day'
            da_fa *= 24*3600
            da_fa.attrs['units'] = 'mm/day'
            daa *= 24*3600
            daa.attrs['units'] = 'mm/day'
    cmap = 'YlGnBu' if daname == 'precip' else None 
    fig,ax = plt.subplots()        
    da.plot(robust=True, levels=21, cmap=cmap)
    if dsname == 'atmos_month': mapplot()
    ax.set_title('FLOR')

    fig,ax = plt.subplots()        
    da_fa.plot(robust=True, levels=21, cmap=cmap)
    if dsname == 'atmos_month': mapplot()
    ax.set_title('FLOR_FA')

    cmap = 'BrBG' if daname == 'precip' else None 
    fig,ax = plt.subplots()        
    daa.plot(robust=True, levels=21, cmap=cmap)
    if dsname == 'atmos_month': mapplot()
    ax.set_title('FLOR_FA $-$ FLOR')

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