From 9a65b4a9d24fe9b5759df05d4c2b06a6d2186dec Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Thu, 14 May 2026 19:54:53 +0900
Subject: feat(port): port RepositoryUtils.php

---
 crates/shirabe/src/repository/repository_utils.rs | 71 +++++++++++++++++++++++
 1 file changed, 71 insertions(+)

(limited to 'crates')

diff --git a/crates/shirabe/src/repository/repository_utils.rs b/crates/shirabe/src/repository/repository_utils.rs
index 334fcf4..1ca98ee 100644
--- a/crates/shirabe/src/repository/repository_utils.rs
+++ b/crates/shirabe/src/repository/repository_utils.rs
@@ -1 +1,72 @@
 //! ref: composer/src/Composer/Repository/RepositoryUtils.php
+
+use std::any::Any;
+use indexmap::IndexMap;
+use crate::package::link::Link;
+use crate::package::package_interface::PackageInterface;
+use crate::repository::composite_repository::CompositeRepository;
+use crate::repository::filter_repository::FilterRepository;
+use crate::repository::repository_interface::RepositoryInterface;
+
+pub struct RepositoryUtils;
+
+impl RepositoryUtils {
+    pub fn filter_required_packages(
+        packages: &[Box<dyn PackageInterface>],
+        requirer: &dyn PackageInterface,
+        include_require_dev: bool,
+        mut bucket: Vec<Box<dyn PackageInterface>>,
+    ) -> Vec<Box<dyn PackageInterface>> {
+        let mut requires: IndexMap<String, Link> = requirer.get_requires();
+        if include_require_dev {
+            requires.extend(requirer.get_dev_requires());
+        }
+
+        for candidate in packages {
+            for name in candidate.get_names() {
+                if requires.contains_key(&name) {
+                    let already_in_bucket = bucket.iter().any(|b| {
+                        std::ptr::eq(
+                            b.as_ref() as *const dyn PackageInterface as *const (),
+                            candidate.as_ref() as *const dyn PackageInterface as *const (),
+                        )
+                    });
+                    if !already_in_bucket {
+                        bucket.push(candidate.clone_box());
+                        bucket = Self::filter_required_packages(packages, candidate.as_ref(), false, bucket);
+                    }
+                    break;
+                }
+            }
+        }
+
+        bucket
+    }
+
+    pub fn flatten_repositories(
+        repo: Box<dyn RepositoryInterface>,
+        unwrap_filter_repos: bool,
+    ) -> Vec<Box<dyn RepositoryInterface>> {
+        let repo: Box<dyn RepositoryInterface> = if unwrap_filter_repos {
+            if let Some(filter_repo) = (repo.as_any() as &dyn Any).downcast_ref::<FilterRepository>() {
+                filter_repo.get_repository()
+            } else {
+                repo
+            }
+        } else {
+            repo
+        };
+
+        if let Some(composite_repo) = (repo.as_any() as &dyn Any).downcast_ref::<CompositeRepository>() {
+            let mut repos = Vec::new();
+            for r in composite_repo.get_repositories() {
+                for r2 in Self::flatten_repositories(r, unwrap_filter_repos) {
+                    repos.push(r2);
+                }
+            }
+            repos
+        } else {
+            vec![repo]
+        }
+    }
+}
-- 
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