import cmor
import numpy


def cmor_initialisation():
    cmor.setup(inpath='/git/cmip5-cmor-tables/Tables',
               netcdf_file_action=cmor.CMOR_REPLACE_3,
               create_subdirectories=0)
    cmor.dataset('pre-industrial control', 'ukmo', 'HadCM3', '360_day',
                 institute_id='ukmo',
                 model_id='HadCM3',
                 history='some global history',
                 forcing='N/A',
                 parent_experiment_id='N/A',
                 parent_experiment_rip='N/A',
                 branch_time=0.,
                 contact='bob',
                 outpath='hadju/test')


def setup_data():
    axes = [{'table_entry': 'time',
             'units': 'days since 2000-01-01 00:00:00'
             },
            {'table_entry': 'latitude',
             'units': 'degrees',
             'coord_vals': [0],
             'cell_bounds': [-0.5, 0.5]},
            {'table_entry': 'longitude',
             'units': 'degrees',
             'coord_vals': [1],
             'cell_bounds': [0.5, 1.5]},
            ]

    values = numpy.array([215.], numpy.float32)
    return values, axes


def cmor_define_and_write(values, axes):
    table = 'CMIP5_day'
    cmor.load_table(table)

    axis_ids = list()
    for axis in axes:
        axis_ids.append(cmor.axis(**axis))

    varid = cmor.variable('rlut',
                          'W m-2',
                          axis_ids,
                          history='variable history',
                          missing_value=-99,
                          positive='up'
                          )

    for time in (15, 16, 17):
        cmor.write(
            varid,
            values,
            time_vals=[time],
            time_bnds=[
                time -
                0.45,
                time +
                0.45])


def version(cmor):
    return '%s.%s.%s' % (cmor.CMOR_VERSION_MAJOR,
                         cmor.CMOR_VERSION_MINOR,
                         cmor.CMOR_VERSION_PATCH)


def main():
    assert version(cmor) == '2.8.3'
    cmor_initialisation()
    values, axes = setup_data()
    cmor_define_and_write(values, axes)
    cmor.close()


if __name__ == '__main__':

    main()