use std::collections::BTreeSet;
use crate::params::*;

/// Enumerator representing the parameters supported in this library.
pub enum NodeType {
    DiscreteStatesContinousTime(DiscreteStatesContinousTimeParams)
}

pub struct Node {
    pub params: NodeType,
    pub label: String
}

impl Node {
    pub fn init(params: NodeType, label: String) -> Node {
        Node{
            params: params,
            label:label
        }
    }

    pub fn reset_params(&mut self) {
        match &mut self.params {
            NodeType::DiscreteStatesContinousTime(params) => {params.reset_params();}
        }
    }

    pub fn get_params(&self) -> &NodeType {
        &self.params
    }
    
    pub fn get_reserved_space_as_parent(&self) -> usize {
        match &self.params {
            NodeType::DiscreteStatesContinousTime(params) => params.get_reserved_space_as_parent()
        }
    }

    pub fn state_to_index(&self,state: &StateType) -> usize{
        match &self.params {
            NodeType::DiscreteStatesContinousTime(params) => params.state_to_index(state)
        }
    }

    
    pub fn get_random_residence_time(&self, state: usize, u:usize) -> Result<f64, ParamsError> {
        match &self.params {
            NodeType::DiscreteStatesContinousTime(params) => params.get_random_residence_time(state, u)
        }
    }


    pub fn get_random_state_uniform(&self) -> StateType {
        match &self.params {
            NodeType::DiscreteStatesContinousTime(params) => params.get_random_state_uniform()
        }
    }


    pub fn get_random_state(&self, state: usize, u:usize) -> Result<StateType, ParamsError>{
        match &self.params {
            NodeType::DiscreteStatesContinousTime(params) => params.get_random_state(state, u)
        }
    }


}

impl PartialEq for Node {
    fn eq(&self, other: &Node) -> bool{
        self.label == other.label
    }
}