#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Wed Apr 17 11:44:01 EDT 2024
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
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__':
    tt.check('end import')
#
#start from here
#atlantic mask
ifile = '/tigress/gvecchi/DATA/FOR_FLOR/atlantic.nc'
mask = xr.open_dataset(ifile)['E551'].rename(GRIDLON_T='lon', GRIDLAT_T='lat') \
    .pipe(lambda x: x.assign_coords(lat=x.lat.values+0.5))

#get the amoc
model = 'FLOR'
"""
expname = 'CTL1860_newdiag_1-4-1xCO2_tigercpu_intelmpi_18_576P'
years = range(2001, 2280+1)
expname = 'CTL1860_newdiag_tigercpu_intelmpi_18_576PE'
years = range(1, 3000+1)
expname = 'CTL1990_v201905_tigercpu_intelmpi_18_576PE'
years = range(1, 3000+1)
expname = 'co2x4_CTL1860_tigercpu_intelmpi_18_576PE'
years = range(101, 250+1)
expname = 'co2xp25_CTL1860_tigercpu_intelmpi_18_576PE'
years = range(101, 250+1)
expname = 'p4p0sol_CTL1860_tigercpu_intelmpi_18_576PE'
years = range(101, 400+1)
expname = 'm4p0sol_CTL1860_tigercpu_intelmpi_18_576PE'
years = range(101, 800+1)
expname = 'p6p0sol_CTL1860_tigercpu_intelmpi_18_576PE'
years = range(101, 600+1)
expname = 'm6p0sol_CTL1860_tigercpu_intelmpi_18_576PE'
years = range(101, 597+1)
expname = 'co2x2_CTL1860_tigercpu_intelmpi_18_576PE'
years = range(101, 600+1)
expname = 'co2xp5_CTL1860_tigercpu_intelmpi_18_576PE'
years = range(101, 600+1)
expname = 'p2p0sol_CTL1860_tigercpu_intelmpi_18_576PE'
years = range(101, 400+1)
"""
expname = 'm2p0sol_CTL1860_tigercpu_intelmpi_18_576PE'
years = range(101, 400+1)
ofile = f'amoc_{model}_{expname}_{years[0]}-{years[-1]}.nc'
if os.path.exists(ofile): 
    print('[exists]:', ofile)
    sys.exit()
das = []
for year in years:
    ifile = f'/tigress/wenchang/MODEL_OUT/{expname}/POSTP/{year:04d}0101.ocean.nc'
    #ifile = f'/home/wenchang/tgScratch/wenchang/{model}/work/{expname}/POSTP/{year:04d}0101.ocean.nc' #data from workdir of scratch; for +-4% solar
    print(year, ifile)
    da = xr.open_dataset(ifile)['ty_trans'].load() \
        .rename(st_ocean='depth', yu_ocean='lat', xt_ocean='lon') \
        .pipe(lambda x: x.where(mask.assign_coords(lat=x.lat.values)>0)) \
        .sum('lon', keep_attrs=True).cumsum('depth', keep_attrs=True)  #.mean('time', keep_attrs=True)
    das.append(da)
print('concat...')
da = xr.concat(das, dim='time')
#save
da.to_dataset(name='ty_trans').to_netcdf(ofile, encoding={'ty_trans': {'zlib': True, 'complevel': 1}})
print('[saved]:', ofile)
 
 
if __name__ == '__main__':
    from wyconfig import * #my plot settings
    da.groupby('time.year').mean('time', keep_attrs=True).max(['depth', 'lat'], keep_attrs=True) \
        .plot()
    plt.title(f'AMOC from {model} {expname}.split("_tigercpu")[0]')
    
    #savefig
    if 'savefig' in sys.argv or 's' in sys.argv:
        figname = __file__.replace('.py', f'.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()