use dashmap::DashMap;

pub struct StatementCache {
  /// Maps a Cache Key (String) -> SQL String (String)
  statements: DashMap<String, String>,
}

impl StatementCache {
  pub fn new(_max_capacity: u64) -> Self {
    Self {
      statements: DashMap::new(),
    }
  }

  /// Retrieve an existing statement name by key, or None if it missed
  pub fn get(&self, key: &str) -> Option<String> {
    self.statements.get(key).map(|v| v.clone())
  }

  /// Insert a completely verified/compiled statement string into the cache
  pub fn insert(&self, key: String, sql: String) {
    self.statements.insert(key, sql);
  }
}