# Copyright (c) Facebook, Inc. and its affiliates.

# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.

import os
from unittest import TestCase

import pandas as pd
from fbprophet import Prophet
from fbprophet.diagnostics import cross_validation
import fbprophet.plot as plot


DATA = pd.read_csv(
    os.path.join(os.path.dirname(__file__), 'data.csv'),
    parse_dates=['ds'],
)


class TestFbprophet(TestCase):

    def test_shim(self):
        m = Prophet()
        m.fit(DATA)
        future = m.make_future_dataframe(10, include_history=False)
        fcst = m.predict(future)
 
        df_cv = cross_validation(
            model=m, horizon='4 days', period='10 days', initial='115 days',
        )

        fig = plot.plot_forecast_component(m=m, fcst=fcst, name='weekly')