#Test Name: SquareShelfSMBGemb
from socket import gethostname
import sys

import numpy as np

from model import *
from parameterize import *
from setflowequation import *
from setmask import *
from SMBgemb import *
from solve import *
from triangle import *

md = triangle(model(), '../Exp/Square.exp', 350000.)
md = setmask(md, 'all', '')
md = parameterize(md, '../Par/SquareShelf.py')
md = setflowequation(md, 'SSA', 'all')
md.materials.rho_ice = 910
md.cluster = generic('name', gethostname(), 'np', 3)

#Use of Gemb method for SMB computation
md.smb = SMBgemb(md.mesh, md.geometry)
md.smb.dsnowIdx = 1

#load hourly surface forcing date from 1979 to 2009:
if sys.version_info.major == 2:
    inputs = np.load('../Data/gemb_input.npy', allow_pickle=True).item()
else:
    inputs = np.load('../Data/gemb_input.npy', allow_pickle=True, encoding='bytes').item()

#setup the inputs:
md.smb.Ta = np.append(np.tile(np.conjugate(inputs[b'Ta0']), (md.mesh.numberofelements, 1)), np.conjugate([inputs[b'dateN']]), axis=0)
md.smb.V = np.append(np.tile(np.conjugate(inputs[b'V0']), (md.mesh.numberofelements, 1)), np.conjugate([inputs[b'dateN']]), axis=0)
md.smb.dswrf = np.append(np.tile(np.conjugate(inputs[b'dsw0']), (md.mesh.numberofelements, 1)), np.conjugate([inputs[b'dateN']]), axis=0)
md.smb.dlwrf = np.append(np.tile(np.conjugate(inputs[b'dlw0']), (md.mesh.numberofelements, 1)), np.conjugate([inputs[b'dateN']]), axis=0)
md.smb.P = np.append(np.tile(np.conjugate(inputs[b'P0']), (md.mesh.numberofelements, 1)), np.conjugate([inputs[b'dateN']]), axis=0)
md.smb.eAir = np.append(np.tile(np.conjugate(inputs[b'eAir0']), (md.mesh.numberofelements, 1)), np.conjugate([inputs[b'dateN']]), axis=0)
md.smb.pAir = np.append(np.tile(np.conjugate(inputs[b'pAir0']), (md.mesh.numberofelements, 1)), np.conjugate([inputs[b'dateN']]), axis=0)
md.smb.Vz = np.tile(np.conjugate(inputs[b'LP']['Vz']), (md.mesh.numberofelements, 1)).flatten()
md.smb.Tz = np.tile(np.conjugate(inputs[b'LP']['Tz']), (md.mesh.numberofelements, 1)).flatten()
md.smb.Tmean = np.tile(np.conjugate(inputs[b'LP']['Tmean']), (md.mesh.numberofelements, 1)).flatten()
md.smb.C = np.tile(np.conjugate(inputs[b'LP']['C']), (md.mesh.numberofelements, 1)).flatten()

#smb settings
md.smb.requested_outputs = [
    'SmbDz', 'SmbT', 'SmbD', 'SmbRe', 'SmbGdn', 'SmbGsp', 'SmbEC',
    'SmbA', 'SmbMassBalance', 'SmbMAdd', 'SmbDzAdd', 'SmbFAC', 'SmbMeanSHF', 'SmbMeanLHF',
    'SmbMeanULW', 'SmbNetLW', 'SmbNetSW','SmbAccumulatedMassBalance','SmbAccumulatedRunoff',
    'SmbAccumulatedMelt','SmbAccumulatedEC','SmbAccumulatedPrecipitation'
    ]

#only run smb core:
md.transient.isstressbalance = 0
md.transient.ismasstransport = 0
md.transient.isthermal = 0

#time stepping:
md.timestepping.start_time = 1965.
md.timestepping.final_time = 1966.
md.timestepping.time_step = 1.0 / 365
md.timestepping.interp_forcings = 0.

#Run transient
md = solve(md, 'Transient')

nlayers = md.results.TransientSolution[0].SmbT.shape[1]
for i in range(1, len(md.results.TransientSolution)):
    nlayers=np.minimum(md.results.TransientSolution[i].SmbT.shape[1], nlayers)

#Fields and tolerances to track changes
field_names = ['Layers', 'SmbDz', 'SmbT', 'SmbD', 'SmbRe', 'SmbGdn', 'SmbGsp', 'SmbA', 'SmbEC', 'SmbMassBalance', 'SmbMAdd', 'SmbDzAdd', 'SmbFAC', 'SmbMeanSHF', 'SmbMeanLHF', 'SmbMeanULW', 'SmbNetLW', 'SmbNetSW', 'SmbAccumulatedMassBalance','SmbAccumulatedRunoff','SmbAccumulatedMelt','SmbAccumulatedEC','SmbAccumulatedPrecipitation']
field_tolerances = [1e-12, 2e-12, 1e-12, 1e-11, 1e-11, 2e-11, 1e-11, 1e-12, 1e-11, 1e-12, 1e-12, 1e-12, 1e-11, 2e-11, 2e-11, 1e-11, 9e-10, 2e-11, 1e-11, 1e-11, 1e-11, 1e-11, 1e-11]
# Shape is different in python solution (fixed using reshape) which can cause test failure
field_values = [
    nlayers,
    md.results.TransientSolution[-1].SmbDz[0, 0:nlayers].reshape(1, -1),
    md.results.TransientSolution[-1].SmbT[0, 0:nlayers].reshape(1, -1),
    md.results.TransientSolution[-1].SmbD[0, 0:nlayers].reshape(1, -1),
    md.results.TransientSolution[-1].SmbRe[0, 0:nlayers].reshape(1, -1),
    md.results.TransientSolution[-1].SmbGdn[0, 0:nlayers].reshape(1, -1),
    md.results.TransientSolution[-1].SmbGsp[0, 0:nlayers].reshape(1, -1),
    md.results.TransientSolution[-1].SmbA[0, 0:nlayers].reshape(1, -1),
    md.results.TransientSolution[-1].SmbEC[0],
    md.results.TransientSolution[-1].SmbMassBalance[0],
    md.results.TransientSolution[-1].SmbMAdd[0],
    md.results.TransientSolution[-1].SmbDzAdd[0],
    md.results.TransientSolution[-1].SmbFAC[0],
    md.results.TransientSolution[-1].SmbMeanSHF[0],
    md.results.TransientSolution[-1].SmbMeanLHF[0],
    md.results.TransientSolution[-1].SmbMeanULW[0],
    md.results.TransientSolution[-1].SmbNetLW[0],
    md.results.TransientSolution[-1].SmbNetSW[0],
    md.results.TransientSolution[-1].SmbAccumulatedMassBalance[0],
    md.results.TransientSolution[-1].SmbAccumulatedRunoff[0],
    md.results.TransientSolution[-1].SmbAccumulatedMelt[0],
    md.results.TransientSolution[-1].SmbAccumulatedEC[0],
    md.results.TransientSolution[-1].SmbAccumulatedPrecipitation[0]
    ]
