import wx
from logbook import Logger

import eos.db
from service.fit import Fit


pyfalog = Logger(__name__)


class FitRemoveProjectedFitCommand(wx.Command):

    def __init__(self, fitID, projectedFitID):
        wx.Command.__init__(self, True, 'Add Projected Fit')
        self.fitID = fitID
        self.projectedFitID = projectedFitID
        self.savedState = None

    def Do(self):
        pyfalog.debug('Doing removal of projected fit {} for fit {}'.format(self.projectedFitID, self.fitID))
        sFit = Fit.getInstance()
        fit = sFit.getFit(self.fitID)
        projectedFit = sFit.getFit(self.projectedFitID)

        # Can be removed by the time we're redoing it
        if projectedFit is None:
            pyfalog.debug('Projected fit is not available')
            return False
        projectionInfo = projectedFit.getProjectionInfo(self.fitID)
        if not projectionInfo:
            pyfalog.warning('Fit projection info is not available')
            return False

        self.savedState = projectionInfo.active
        del fit.projectedFitDict[projectedFit.ID]
        eos.db.commit()
        return True

    def Undo(self):
        pyfalog.debug('Undoing removal of projected fit {} for fit {}'.format(self.projectedFitID, self.fitID))
        from .fitAddProjectedFit import FitAddProjectedFitCommand
        cmd = FitAddProjectedFitCommand(fitID=self.fitID, projectedFitID=self.projectedFitID, state=self.savedState)
        return cmd.Do()