from unittest import TestCase
from esbo_etc.classes.Config import Configuration
from esbo_etc.classes.optical_component.OpticalComponentFactory import OpticalComponentFactory
from esbo_etc.classes.target.TargetFactory import TargetFactory
import esbo_etc.classes.optical_component as oc
from esbo_etc.classes.target import BlackBodyTarget
import astropy.units as u


class TestRadiantFactory(TestCase):
    def test_fromConfigBatch(self):
        conf = Configuration("tests/data/esbo-etc_defaults.xml").conf
        target_factory = TargetFactory(conf.common)
        oc_factory = OpticalComponentFactory(conf.common)
        parent = target_factory.create(conf.astroscene.target)
        parent = oc_factory.fromConfigBatch(conf, parent)

        parent_2 = BlackBodyTarget(conf.common.wl_bins(), 5778 * u.K, 10 * u.mag, "V")
        parent_2 = oc.Atmosphere(parent=parent_2, transmittance="tests/data/atmosphere/transmittance.csv",
                                 emission="tests/data/atmosphere/emission.csv")
        parent_2 = oc.StrayLight(parent_2, "tests/data/straylight/emission.csv")
        parent_2 = oc.Mirror(parent_2, "tests/data/mirror/reflectance.csv",
                             "tests/data/mirror/emissivity.csv", 70 * u.K, obstruction=0.1, obstructor_temp=70 * u.K)
        parent_2 = oc.Mirror(parent_2, "tests/data/mirror/reflectance.csv",
                             "tests/data/mirror/emissivity.csv", 70 * u.K)
        parent_2 = oc.Mirror(parent_2, "tests/data/mirror/reflectance.csv",
                             "tests/data/mirror/emissivity.csv", 70 * u.K)
        parent_2 = oc.Filter(parent=parent_2, start=400 * u.nm, end=480 * u.nm,
                             emissivity="tests/data/filter/emissivity.csv", temp=70 * u.K)
        parent_2 = oc.Lens(parent_2, "tests/data/lens/transmittance.csv", "tests/data/lens/emissivity.csv", 70 * u.K)

        self.assertEqual(parent.calcSignal()[0], parent_2.calcSignal()[0])
        self.assertEqual(parent.calcBackground(), parent_2.calcBackground())