SingleStrategy

open class SingleStrategy : ExecutionStrategy {

    override fun shouldAddToPendingActions(
        pendingActionCommands: RemoveOnlyList<ActionCommand<*, *>>,
        runningActionCommands: List<ActionCommand<*, *>>
    ): Boolean =
        !pendingActionCommands.any { it.strategy is SingleStrategy }
                && !runningActionCommands.any { it.strategy is SingleStrategy }

    override fun shouldBlockOtherTask(pendingActionCommand: ActionCommand<*, *>): Boolean =
        true

    override fun shouldExecuteAction(
        pendingActionCommands: RemoveOnlyList<ActionCommand<*, *>>,
        runningActionCommands: List<ActionCommand<*, *>>
    ): Boolean =
        runningActionCommands.isEmpty()
}