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use crate::cache::Cache;
use crate::packagist::{self, PackagistVersion};
use crate::version;
use mozart_core::package::Stability;
/// Mirrors `Composer\Package\Version\VersionSelector`.
pub struct VersionSelector {
preferred_stability: Stability,
repo_cache: Cache,
}
impl VersionSelector {
pub fn new(preferred_stability: Stability, repo_cache: Cache) -> Self {
Self {
preferred_stability,
repo_cache,
}
}
/// Fetch versions from Packagist and pick the best candidate.
/// Mirrors `VersionSelector::findBestCandidate()`.
pub async fn find_best_candidate(
&self,
package_name: &str,
) -> anyhow::Result<Option<PackagistVersion>> {
let versions = packagist::fetch_package_versions(package_name, &self.repo_cache).await?;
Ok(version::find_best_candidate(&versions, self.preferred_stability).cloned())
}
/// Generate a recommended constraint string from a concrete version.
/// Mirrors `VersionSelector::findRecommendedRequireVersion()`.
pub fn find_recommended_require_version_string(
&self,
pkg: &PackagistVersion,
fixed: bool,
) -> String {
if fixed {
pkg.version.clone()
} else {
let stability = version::stability_of(&pkg.version_normalized);
version::find_recommended_require_version(
&pkg.version,
&pkg.version_normalized,
stability,
)
}
}
}
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