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import pymel.core as pm


"""
To use:
Select a control on the source and then a control on the destination
Run the copy command
Select controls of the source to be copied
Run the paste command


COPY COMMAND (select a control on the source, then destination):
    
import craig_copy_paste as ccp
reload(ccp)
craig_ccp = ccp.CraigCopyPaste()


PASTE (with source controls ONLY selected):

craig_ccp.copy_paste()

"""


class CraigCopyPaste:
    def __init__(self):
        self.get_source_destination()
        
    def control_list(self):
        selection = pm.selected()
        self.controls = []
        for s in selection:
            self.controls.append(s.name().split(':')[-1])
        print self.controls
        
    def get_source_destination(self):
        selection = pm.selected()
        if len(selection) == 2:
            self.namespace_a = pm.selected()[0].namespace()
            self.namespace_b = pm.selected()[1].namespace()
        else:
            pm.warning('Select 1 control on the source and 1 on the destination')
             
    def copy_paste(self):
        if self.namespace_a and self.namespace_b:
            self.control_list()
            
            for ctrl in self.controls:        
                source = '{}:{}'.format(self.namespace_a, ctrl)
                destination = '{}:{}'.format(self.namespace_b, ctrl)
                try:
                    pm.copyKey(source)
                    pm.setKeyframe(destination)
                    pm.pasteKey(destination, option='replaceCompletely')
                except RuntimeError:
                    print 'no keys on {}, skipping'.format(source)
        else:
            pm.warning('No source/destination established to copy/paste')