mod utils;
use utils::generate_discrete_time_continous_node;
use rustyCTBN::network::Network;
use rustyCTBN::node;
use rustyCTBN::params;
use std::collections::BTreeSet;
use rustyCTBN::ctbn::*;

#[test]
fn define_simpe_ctbn() {
    let _ = CtbnNetwork::new();
    assert!(true);
}

#[test]
fn add_node_to_ctbn() {
    let mut net = CtbnNetwork::new();
    let n1 = net.add_node(generate_discrete_time_continous_node(String::from("n1"),2)).unwrap();
    assert_eq!(String::from("n1"), net.get_node(n1).label);
}

#[test]
fn add_edge_to_ctbn() {
    let mut net = CtbnNetwork::new();
    let n1 = net.add_node(generate_discrete_time_continous_node(String::from("n1"),2)).unwrap();
    let n2 = net.add_node(generate_discrete_time_continous_node(String::from("n2"),2)).unwrap();
    net.add_edge(n1, n2);
    let cs = net.get_children_set(n1);
    assert_eq!(&n2, cs.iter().next().unwrap());
}

#[test]
fn children_and_parents() {
    let mut net = CtbnNetwork::new();
    let n1 = net.add_node(generate_discrete_time_continous_node(String::from("n1"),2)).unwrap();
    let n2 = net.add_node(generate_discrete_time_continous_node(String::from("n2"),2)).unwrap();
    net.add_edge(n1, n2);
    let cs = net.get_children_set(n1);
    assert_eq!(&n2, cs.iter().next().unwrap());
    let ps = net.get_parent_set(n2);
    assert_eq!(&n1, ps.iter().next().unwrap());
}


#[test]
fn compute_index_ctbn() {
    let mut net = CtbnNetwork::new();
    let n1 = net.add_node(generate_discrete_time_continous_node(String::from("n1"),2)).unwrap();
    let n2 = net.add_node(generate_discrete_time_continous_node(String::from("n2"),2)).unwrap();
    let n3 = net.add_node(generate_discrete_time_continous_node(String::from("n3"),2)).unwrap();
    net.add_edge(n1, n2);
    net.add_edge(n3, n2);
    let idx = net.get_param_index_network(n2, &vec![
                                          params::StateType::Discrete(1), 
                                          params::StateType::Discrete(1), 
                                          params::StateType::Discrete(1)]);
    assert_eq!(3, idx);


    let idx = net.get_param_index_network(n2, &vec![
                                          params::StateType::Discrete(0), 
                                          params::StateType::Discrete(1), 
                                          params::StateType::Discrete(1)]);
    assert_eq!(2, idx);


    let idx = net.get_param_index_network(n2, &vec![
                                          params::StateType::Discrete(1), 
                                          params::StateType::Discrete(1), 
                                          params::StateType::Discrete(0)]);
    assert_eq!(1, idx);

}



#[test]
fn compute_index_from_custom_parent_set() {
    let mut net = CtbnNetwork::new();
    let _n1 = net.add_node(generate_discrete_time_continous_node(String::from("n1"),2)).unwrap();
    let _n2 = net.add_node(generate_discrete_time_continous_node(String::from("n2"),2)).unwrap();
    let _n3 = net.add_node(generate_discrete_time_continous_node(String::from("n3"),2)).unwrap();


    let idx = net.get_param_index_from_custom_parent_set(&vec![
                                          params::StateType::Discrete(0), 
                                          params::StateType::Discrete(0), 
                                          params::StateType::Discrete(1)],
                                          &BTreeSet::from([1]));
    assert_eq!(0, idx);


    let idx = net.get_param_index_from_custom_parent_set(&vec![
                                          params::StateType::Discrete(0), 
                                          params::StateType::Discrete(0), 
                                          params::StateType::Discrete(1)],
                                          &BTreeSet::from([1,2]));
    assert_eq!(2, idx);
}