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use genetic_algorithm::GeneticAlgorithmParams;


#[derive(Debug)]
pub struct GeneticAlgorithmParamsBuilder<CR, MA, MU, S> {
    crossover: Option<CR>,
    mating_selection: Option<MA>,
    mutation: Option<MU>,
    survivor_selection: Option<S>,
}

impl<CR, MA, MU, S> GeneticAlgorithmParamsBuilder<CR, MA, MU, S> {
    
    pub fn new() -> Self {
        GeneticAlgorithmParamsBuilder::default()
    }

    
    pub fn build(self) -> GeneticAlgorithmParams<CR, MA, MU, S> {
        GeneticAlgorithmParams {
            crossover: self.crossover.unwrap(),
            mating_selection: self.mating_selection.unwrap(),
            mutation: self.mutation.unwrap(),
            survivor_selection: self.survivor_selection.unwrap(),
        }
    }

    
    pub fn crossover(mut self, crossover: CR) -> Self {
        self.crossover = Some(crossover);
        self
    }

    
    pub fn mating_selection(mut self, mating_selection: MA) -> Self {
        self.mating_selection = Some(mating_selection);
        self
    }

    
    pub fn mutation(mut self, mutation: MU) -> Self {
        self.mutation = Some(mutation);
        self
    }

    
    pub fn survivor_selection(mut self, survivor_selection: S) -> Self {
        self.survivor_selection = Some(survivor_selection);
        self
    }
}

impl<CR, MA, MU, S> Default for GeneticAlgorithmParamsBuilder<CR, MA, MU, S> {
    fn default() -> Self {
        GeneticAlgorithmParamsBuilder {
            crossover: None,
            mating_selection: None,
            mutation: None,
            survivor_selection: None,
        }
    }
}