use crate::model::JdbModel;

pub type GeoffreyDBQuery<T> = Box<dyn Fn(u64, &T) -> bool>;

pub struct QueryBuilder<T: JdbModel> {
    pub queries: Vec<GeoffreyDBQuery<T>>,
}

impl<T: JdbModel> Default for QueryBuilder<T> {
    fn default() -> Self {
        Self::new()
    }
}

impl<T: JdbModel> QueryBuilder<T> {
    pub fn new() -> Self {
        QueryBuilder {
            queries: Vec::new(),
        }
    }

    pub fn add_query_clause(mut self, clause: GeoffreyDBQuery<T>) -> Self {
        self.queries.push(clause);
        self
    }

    pub fn with_id(self, id: u64) -> Self {
        self.add_query_clause(Box::new(move |entry_id, _| entry_id == id))
    }
}