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## Copyright (C) 2006-2011, University of Utah. 
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from vistrails.db.domain import DBLoopExec

class LoopExec(DBLoopExec):
    """ Class that stores info for logging a loop execution. """

    def __init__(self, *args, **kwargs):
        DBLoopExec.__init__(self, *args, **kwargs)

    def __copy__(self):
        return self.do_copy()

    def do_copy(self, new_ids=False, id_scope=None, id_remap=None):
        cp = DBLoopExec.do_copy(self, new_ids, id_scope, id_remap)
        cp.__class__ = LoopExec
        return cp

    @staticmethod
    def convert(_loop_exec):
        from vistrails.core.log.module_exec import ModuleExec
        from vistrails.core.log.group_exec import GroupExec

        if _loop_exec.__class__ == LoopExec:
            return
        _loop_exec.__class__ = LoopExec
        for item_exec in _loop_exec.item_execs:
            if item_exec.vtType == ModuleExec.vtType:
                ModuleExec.convert(item_exec)
            elif item_exec.vtType == GroupExec.vtType:
                GroupExec.convert(item_exec)
            elif item_exec.vtType == LoopExec.vtType:
                LoopExec.convert(item_exec)

    ##########################################################################
    # Properties

    id = DBLoopExec.db_id
    ts_start = DBLoopExec.db_ts_start
    ts_end = DBLoopExec.db_ts_end
    completed = DBLoopExec.db_completed
    error = DBLoopExec.db_error

    def _get_duration(self):
        if self.db_ts_end is not None:
            return self.db_ts_end - self.db_ts_start
        return None
    duration = property(_get_duration)

    def _get_item_execs(self):
        return self.db_item_execs
    def _set_item_execs(self, item_execs):
        self.db_item_execs = item_execs
    item_execs = property(_get_item_execs, _set_item_execs)
    def add_item_exec(self, item_exec):
        self.db_add_item_exec(item_exec)
