//! ref: composer/src/Composer/Installer/InstallerInterface.php
use shirabe_external_packages::react::promise::promise_interface::PromiseInterface;
use crate::package::package_interface::PackageInterface;
use crate::repository::installed_repository_interface::InstalledRepositoryInterface;
pub trait InstallerInterface {
fn supports(&self, package_type: &str) -> bool;
fn is_installed(&self, repo: &dyn InstalledRepositoryInterface, package: &dyn PackageInterface) -> bool;
fn download(&self, package: &dyn PackageInterface, prev_package: Option<&dyn PackageInterface>) -> anyhow::Result