feat(port): port FilesystemRepository.php

1 files changed, 718 insertions, 0 deletions

diff --git a/crates/shirabe/src/repository/filesystem_repository.rs b/crates/shirabe/src/repository/filesystem_repository.rs
index b771b6c..5cbff22 100644
--- a/crates/shirabe/src/repository/filesystem_repository.rs
+++ b/crates/shirabe/src/repository/filesystem_repository.rs
@@ -1 +1,719 @@
 //! ref: composer/src/Composer/Repository/FilesystemRepository.php
+
+use std::any::Any;
+
+use anyhow::Result;
+use indexmap::IndexMap;
+use shirabe_external_packages::composer::pcre::preg::Preg;
+use shirabe_php_shim::{
+    array_flip, dirname, file_get_contents, get_class, get_debug_type, in_array, is_array,
+    is_int, is_null, is_string, ksort, php_dir, r#eval, realpath, sort, sort_with_flags,
+    str_repeat, strtr, trim, usort, var_export, InvalidArgumentException, LogicException,
+    PhpMixed, Silencer, UnexpectedValueException, SORT_NATURAL,
+};
+
+use crate::installed_versions::InstalledVersions;
+use crate::installer::installation_manager::InstallationManager;
+use crate::json::json_file::JsonFile;
+use crate::package::alias_package::AliasPackage;
+use crate::package::dumper::array_dumper::ArrayDumper;
+use crate::package::loader::array_loader::ArrayLoader;
+use crate::package::package_interface::PackageInterface;
+use crate::package::root_alias_package::RootAliasPackage;
+use crate::package::root_package_interface::RootPackageInterface;
+use crate::repository::invalid_repository_exception::InvalidRepositoryException;
+use crate::repository::platform_repository::PlatformRepository;
+use crate::repository::writable_array_repository::WritableArrayRepository;
+use crate::util::filesystem::Filesystem;
+use crate::util::platform::Platform;
+
+/// Filesystem repository.
+#[derive(Debug)]
+pub struct FilesystemRepository {
+    pub(crate) inner: WritableArrayRepository,
+    /// @var JsonFile
+    pub(crate) file: JsonFile,
+    /// @var bool
+    dump_versions: bool,
+    /// @var ?RootPackageInterface
+    root_package: Option<Box<dyn RootPackageInterface>>,
+    /// @var Filesystem
+    filesystem: Filesystem,
+    /// @var bool|null
+    dev_mode: Option<bool>,
+}
+
+impl FilesystemRepository {
+    /// Initializes filesystem repository.
+    ///
+    /// @param JsonFile              $repositoryFile repository json file
+    /// @param ?RootPackageInterface $rootPackage    Must be provided if $dumpVersions is true
+    pub fn new(
+        repository_file: JsonFile,
+        dump_versions: bool,
+        root_package: Option<Box<dyn RootPackageInterface>>,
+        filesystem: Option<Filesystem>,
+    ) -> Result<Self> {
+        let filesystem = filesystem.unwrap_or_else(Filesystem::new);
+        if dump_versions && root_package.is_none() {
+            return Err(InvalidArgumentException {
+                message: "Expected a root package instance if $dumpVersions is true".to_string(),
+                code: 0,
+            }
+            .into());
+        }
+        Ok(Self {
+            // TODO(phase-b): WritableArrayRepository::new() needs to be exposed
+            inner: todo!("WritableArrayRepository::new()"),
+            file: repository_file,
+            dump_versions,
+            root_package,
+            filesystem,
+            dev_mode: None,
+        })
+    }
+
+    /// @return bool|null true if dev requirements were installed, false if --no-dev was used, null if yet unknown
+    pub fn get_dev_mode(&self) -> Option<bool> {
+        self.dev_mode
+    }
+
+    /// Initializes repository (reads file, or remote address).
+    pub(crate) fn initialize(&mut self) -> Result<()> {
+        self.inner.initialize();
+
+        if !self.file.exists() {
+            return Ok(());
+        }
+
+        // TODO(phase-b): use anyhow::Result<Result<T, E>> to model PHP try/catch
+        let packages: PhpMixed = match (|| -> Result<PhpMixed> {
+            let data = self.file.read()?;
+            let packages_value = if let PhpMixed::Array(ref m) = data {
+                if m.contains_key("packages") {
+                    (*m.get("packages").unwrap().clone()).clone()
+                } else {
+                    data.clone()
+                }
+            } else {
+                data.clone()
+            };
+
+            if let PhpMixed::Array(ref m) = data {
+                if let Some(names) = m.get("dev-package-names") {
+                    let dev_names: Vec<String> = names
+                        .as_list()
+                        .map(|l| {
+                            l.iter()
+                                .filter_map(|v| v.as_string().map(|s| s.to_string()))
+                                .collect()
+                        })
+                        .unwrap_or_default();
+                    self.inner.set_dev_package_names(dev_names);
+                }
+                if let Some(dev) = m.get("dev") {
+                    self.dev_mode = dev.as_bool();
+                }
+            }
+
+            if !is_array(&packages_value) {
+                return Err(UnexpectedValueException {
+                    message: "Could not parse package list from the repository".to_string(),
+                    code: 0,
+                }
+                .into());
+            }
+
+            Ok(packages_value)
+        })() {
+            Ok(p) => p,
+            Err(e) => {
+                return Err(InvalidRepositoryException::new(format!(
+                    "Invalid repository data in {}, packages could not be loaded: [{}] {}",
+                    self.file.get_path(),
+                    get_class(&e),
+                    e,
+                ))
+                .into());
+            }
+        };
+
+        let mut loader = ArrayLoader::new(None, true);
+        if let Some(packages_list) = packages.as_list() {
+            for package_data in packages_list.iter() {
+                let package = loader.load((**package_data).clone(), "Composer\\Package\\CompletePackage")?;
+                self.inner.add_package(package)?;
+            }
+        } else if let Some(packages_array) = packages.as_array() {
+            for (_, package_data) in packages_array.iter() {
+                let package = loader.load((**package_data).clone(), "Composer\\Package\\CompletePackage")?;
+                self.inner.add_package(package)?;
+            }
+        }
+
+        Ok(())
+    }
+
+    pub fn reload(&mut self) -> Result<()> {
+        // TODO(phase-b): clear inner packages cache (PHP: $this->packages = null)
+        self.inner.reload();
+        self.initialize()
+    }
+
+    /// Writes writable repository.
+    pub fn write(
+        &mut self,
+        dev_mode: bool,
+        installation_manager: &InstallationManager,
+    ) -> Result<()> {
+        let mut data: IndexMap<String, PhpMixed> = IndexMap::new();
+        data.insert("packages".to_string(), PhpMixed::List(vec![]));
+        data.insert("dev".to_string(), PhpMixed::Bool(dev_mode));
+        data.insert("dev-package-names".to_string(), PhpMixed::List(vec![]));
+
+        let dumper = ArrayDumper::new();
+
+        // make sure the directory is created so we can realpath it
+        // as realpath() does some additional normalizations with network paths that normalizePath does not
+        // and we need to find shortest path correctly
+        let repo_dir = dirname(self.file.get_path());
+        self.filesystem.ensure_directory_exists(&repo_dir);
+
+        let repo_dir = self.filesystem.normalize_path(
+            &realpath(&repo_dir).unwrap_or_default(),
+        );
+        let mut install_paths: IndexMap<String, Option<String>> = IndexMap::new();
+
+        for package in self.inner.get_canonical_packages() {
+            let mut pkg_array = dumper.dump(&*package);
+            let path = installation_manager.get_install_path(&*package);
+            let mut install_path: Option<String> = None;
+            if let Some(path_str) = &path {
+                if !path_str.is_empty() {
+                    let normalized_path = self.filesystem.normalize_path(
+                        &if self.filesystem.is_absolute_path(path_str) {
+                            path_str.clone()
+                        } else {
+                            format!("{}/{}", Platform::get_cwd(false).unwrap_or_default(), path_str)
+                        },
+                    );
+                    install_path = Some(self.filesystem.find_shortest_path(
+                        &repo_dir,
+                        &normalized_path,
+                        true,
+                    ));
+                }
+            }
+            install_paths.insert(package.get_name().to_string(), install_path.clone());
+
+            pkg_array.insert(
+                "install-path".to_string(),
+                match install_path {
+                    Some(s) => PhpMixed::String(s),
+                    None => PhpMixed::Null,
+                },
+            );
+            if let Some(PhpMixed::List(list)) = data.get_mut("packages") {
+                list.push(Box::new(PhpMixed::Array(
+                    pkg_array.into_iter().map(|(k, v)| (k, Box::new(v))).collect(),
+                )));
+            }
+
+            // only write to the files the names which are really installed, as we receive the full list
+            // of dev package names before they get installed during composer install
+            if in_array(
+                PhpMixed::String(package.get_name().to_string()),
+                &PhpMixed::List(
+                    self.inner
+                        .dev_package_names
+                        .iter()
+                        .map(|s| Box::new(PhpMixed::String(s.clone())))
+                        .collect(),
+                ),
+                true,
+            ) {
+                if let Some(PhpMixed::List(list)) = data.get_mut("dev-package-names") {
+                    list.push(Box::new(PhpMixed::String(package.get_name().to_string())));
+                }
+            }
+        }
+
+        // PHP: sort($data['dev-package-names']);
+        if let Some(PhpMixed::List(list)) = data.get_mut("dev-package-names") {
+            // TODO(phase-b): sort PhpMixed::List in-place using string comparison
+            sort(list);
+        }
+        // PHP: usort($data['packages'], static function ($a, $b): int { return strcmp($a['name'], $b['name']); });
+        if let Some(PhpMixed::List(list)) = data.get_mut("packages") {
+            usort(list, |a: &Box<PhpMixed>, b: &Box<PhpMixed>| -> i64 {
+                let a_name = a
+                    .as_array()
+                    .and_then(|m| m.get("name"))
+                    .and_then(|v| v.as_string())
+                    .unwrap_or("");
+                let b_name = b
+                    .as_array()
+                    .and_then(|m| m.get("name"))
+                    .and_then(|v| v.as_string())
+                    .unwrap_or("");
+                shirabe_php_shim::strcmp(a_name, b_name)
+            });
+        }
+
+        self.file.write(
+            PhpMixed::Array(
+                data.clone()
+                    .into_iter()
+                    .map(|(k, v)| (k, Box::new(v)))
+                    .collect(),
+            ),
+            shirabe_php_shim::JSON_UNESCAPED_SLASHES
+                | shirabe_php_shim::JSON_PRETTY_PRINT
+                | shirabe_php_shim::JSON_UNESCAPED_UNICODE,
+        )?;
+
+        if self.dump_versions {
+            let versions =
+                self.generate_installed_versions(installation_manager, &install_paths, dev_mode, &repo_dir)?;
+
+            self.filesystem.file_put_contents_if_modified(
+                &format!("{}/installed.php", repo_dir),
+                &format!(
+                    "<?php return {};\n",
+                    self.dump_to_php_code(&versions, 0),
+                ),
+            );
+            let installed_versions_class = file_get_contents(&format!(
+                "{}/../InstalledVersions.php",
+                php_dir(),
+            ));
+
+            // this normally should not happen but during upgrades of Composer when it is installed in the project it is a possibility
+            if let Some(class_content) = installed_versions_class {
+                self.filesystem.file_put_contents_if_modified(
+                    &format!("{}/InstalledVersions.php", repo_dir),
+                    &class_content,
+                );
+
+                // make sure the in memory state is up to date with on disk
+                InstalledVersions::reload(versions);
+
+                // make sure the selfDir matches the expected data at runtime if the class was loaded from the vendor dir, as it may have been
+                // loaded from the Composer sources, causing packages to appear twice in that case if the installed.php is loaded in addition to the
+                // in memory loaded data from above
+                // TODO(phase-b): Reflection API on static properties — confirm porting approach with user
+                let _attempt: Result<()> = (|| -> Result<()> {
+                    todo!(
+                        "ReflectionProperty(Composer\\InstalledVersions::class, 'selfDir')->setValue(null, strtr($repoDir, '\\\\', '/'))"
+                    );
+                    // (the second reflection block sets installedIsLocalDir = true)
+                })();
+                // PHP: catches \ReflectionException and rethrows if not "Property does not exist"
+            }
+        }
+
+        Ok(())
+    }
+
+    /// As we load the file from vendor dir during bootstrap, we need to make sure it contains only expected code before executing it
+    ///
+    /// @internal
+    pub fn safely_load_installed_versions(path: &str) -> bool {
+        // PHP: @file_get_contents($path)
+        let installed_versions_data = Silencer::call(|| Ok(file_get_contents(path)))
+            .ok()
+            .flatten();
+        let pattern = "{(?(DEFINE)\n   (?<number>  -? \\s*+ \\d++ (?:\\.\\d++)? )\n   (?<boolean> true | false | null )\n   (?<strings> (?&string) (?: \\s*+ \\. \\s*+ (?&string))*+ )\n   (?<string>  (?: \" (?:[^\"\\\\$]*+ | \\\\ [\"\\\\0] )* \" | ' (?:[^'\\\\]*+ | \\\\ ['\\\\] )* ' ) )\n   (?<array>   array\\( \\s*+ (?: (?:(?&number)|(?&strings)) \\s*+ => \\s*+ (?: (?:__DIR__ \\s*+ \\. \\s*+)? (?&strings) | (?&value) ) \\s*+, \\s*+ )*+  \\s*+ \\) )\n   (?<value>   (?: (?&number) | (?&boolean) | (?&strings) | (?&array) ) )\n)\n^<\\?php\\s++return\\s++(?&array)\\s*+;$}ix";
+        if let Some(data) = installed_versions_data {
+            let mixed = PhpMixed::String(data.clone());
+            if is_string(&mixed) && Preg::is_match(pattern, &trim(&data, None)) {
+                let replaced = Preg::replace(
+                    r"{=>\s*+__DIR__\s*+\.\s*+(['\"])}",
+                    &format!(
+                        "=> {} . $1",
+                        var_export(&PhpMixed::String(dirname(path)), true),
+                    ),
+                    &data,
+                );
+                let evaluated = r#eval(&format!("?>{}", replaced));
+                InstalledVersions::reload(
+                    evaluated
+                        .as_array()
+                        .cloned()
+                        .map(|m| m.into_iter().map(|(k, v)| (k, *v)).collect())
+                        .unwrap_or_default(),
+                );
+
+                return true;
+            }
+        }
+
+        false
+    }
+
+    /// @param array<mixed> $array
+    fn dump_to_php_code(&self, array: &IndexMap<String, PhpMixed>, level: i64) -> String {
+        let mut lines = String::from("array(\n");
+        let level = level + 1;
+
+        for (key, value) in array {
+            lines.push_str(&str_repeat("    ", level as usize));
+            lines.push_str(&if is_int(&PhpMixed::String(key.clone())) {
+                // TODO(phase-b): PHP integer-keyed array entries — IndexMap keys are strings
+                format!("{} => ", key)
+            } else {
+                format!("{} => ", var_export(&PhpMixed::String(key.clone()), true))
+            });
+
+            if is_array(value) {
+                if let Some(inner_arr) = value.as_array() {
+                    if !inner_arr.is_empty() {
+                        let inner_map: IndexMap<String, PhpMixed> = inner_arr
+                            .iter()
+                            .map(|(k, v)| (k.clone(), (**v).clone()))
+                            .collect();
+                        lines.push_str(&self.dump_to_php_code(&inner_map, level));
+                    } else {
+                        lines.push_str("array(),\n");
+                    }
+                } else if let Some(list) = value.as_list() {
+                    if !list.is_empty() {
+                        let inner_map: IndexMap<String, PhpMixed> = list
+                            .iter()
+                            .enumerate()
+                            .map(|(i, v)| (i.to_string(), (**v).clone()))
+                            .collect();
+                        lines.push_str(&self.dump_to_php_code(&inner_map, level));
+                    } else {
+                        lines.push_str("array(),\n");
+                    }
+                }
+            } else if key == "install_path" && is_string(value) {
+                let s = value.as_string().unwrap_or("").to_string();
+                if self.filesystem.is_absolute_path(&s) {
+                    lines.push_str(&format!(
+                        "{},\n",
+                        var_export(&PhpMixed::String(s), true),
+                    ));
+                } else {
+                    lines.push_str(&format!(
+                        "__DIR__ . {},\n",
+                        var_export(&PhpMixed::String(format!("/{}", s)), true),
+                    ));
+                }
+            } else if is_string(value) {
+                lines.push_str(&format!("{},\n", var_export(value, true)));
+            } else if let PhpMixed::Bool(b) = value {
+                lines.push_str(&format!("{},\n", if *b { "true" } else { "false" }));
+            } else if is_null(value) {
+                lines.push_str("null,\n");
+            } else {
+                // PHP: throw new \UnexpectedValueException('Unexpected type '.get_debug_type($value));
+                panic!("{}", format!("Unexpected type {}", get_debug_type(value)));
+            }
+        }
+
+        lines.push_str(&format!(
+            "{}){}",
+            str_repeat("    ", (level - 1) as usize),
+            if (level - 1) == 0 { "" } else { ",\n" },
+        ));
+
+        lines
+    }
+
+    /// @param array<string, string> $installPaths
+    fn generate_installed_versions(
+        &self,
+        installation_manager: &InstallationManager,
+        install_paths: &IndexMap<String, Option<String>>,
+        dev_mode: bool,
+        repo_dir: &str,
+    ) -> Result<IndexMap<String, PhpMixed>> {
+        let dev_packages = array_flip(&PhpMixed::List(
+            self.inner
+                .dev_package_names
+                .iter()
+                .map(|s| Box::new(PhpMixed::String(s.clone())))
+                .collect(),
+        ));
+        let mut packages: Vec<Box<dyn PackageInterface>> = self
+            .inner
+            .get_packages()
+            .into_iter()
+            // TODO(phase-b): Box<BasePackage> -> Box<dyn PackageInterface>
+            .map(|p| todo!("Box<BasePackage> to Box<dyn PackageInterface>"))
+            .collect();
+        let mut root_package = match &self.root_package {
+            None => {
+                return Err(LogicException {
+                    message: "It should not be possible to dump packages if no root package is given".to_string(),
+                    code: 0,
+                }
+                .into());
+            }
+            // TODO(phase-b): clone root_package to push into packages list
+            Some(_r) => todo!("clone root_package"),
+        };
+        // packages[] = $rootPackage = $this->rootPackage;
+        // TODO(phase-b): track current root_package in mutable variable
+        let mut current_root: Box<dyn RootPackageInterface> = root_package;
+        // packages.push(current_root.clone_box());
+
+        while let Some(_alias) = (current_root.as_any() as &dyn Any).downcast_ref::<RootAliasPackage>() {
+            current_root = todo!("RootAliasPackage::get_alias_of() returning Box<dyn RootPackageInterface>");
+            // packages.push(current_root.clone_box());
+        }
+        let mut versions: IndexMap<String, PhpMixed> = IndexMap::new();
+        versions.insert(
+            "root".to_string(),
+            PhpMixed::Array(
+                self.dump_root_package(
+                    &*current_root,
+                    install_paths,
+                    dev_mode,
+                    repo_dir,
+                    &dev_packages,
+                )
+                .into_iter()
+                .map(|(k, v)| (k, Box::new(v)))
+                .collect(),
+            ),
+        );
+        versions.insert(
+            "versions".to_string(),
+            PhpMixed::Array(IndexMap::new()),
+        );
+
+        // add real installed packages
+        for package in &packages {
+            if (package.as_any() as &dyn Any).downcast_ref::<AliasPackage>().is_some() {
+                continue;
+            }
+
+            let dumped = self.dump_installed_package(&**package, install_paths, repo_dir, &dev_packages);
+            if let Some(PhpMixed::Array(versions_map)) = versions.get_mut("versions") {
+                versions_map.insert(
+                    package.get_name().to_string(),
+                    Box::new(PhpMixed::Array(
+                        dumped.into_iter().map(|(k, v)| (k, Box::new(v))).collect(),
+                    )),
+                );
+            }
+        }
+
+        // add provided/replaced packages
+        for package in &packages {
+            let is_dev_package = dev_packages
+                .as_array()
+                .map(|m| m.contains_key(package.get_name()))
+                .unwrap_or(false);
+            for replace in package.get_replaces() {
+                // exclude platform replaces as when they are really there we can not check for their presence
+                if PlatformRepository::is_platform_package(replace.get_target()) {
+                    continue;
+                }
+                // PHP: dev_requirement handling
+                // TODO(phase-b): mutate nested versions['versions'][$replace->getTarget()]['dev_requirement']
+                todo!("mutate nested versions['versions'][target]['dev_requirement']");
+                #[allow(unreachable_code)]
+                {
+                    let mut replaced = replace.get_pretty_constraint().unwrap_or("").to_string();
+                    if replaced == "self.version" {
+                        replaced = package.get_pretty_version().to_string();
+                    }
+                    // TODO(phase-b): mutate nested versions['versions'][$replace->getTarget()]['replaced']
+                    todo!("append replaced to versions['versions'][target]['replaced']");
+                }
+            }
+            for provide in package.get_provides() {
+                // exclude platform provides as when they are really there we can not check for their presence
+                if PlatformRepository::is_platform_package(provide.get_target()) {
+                    continue;
+                }
+                // TODO(phase-b): mutate nested versions['versions'][$provide->getTarget()]['dev_requirement']
+                todo!("mutate nested versions['versions'][target]['dev_requirement']");
+                #[allow(unreachable_code)]
+                {
+                    let mut provided = provide.get_pretty_constraint().unwrap_or("").to_string();
+                    if provided == "self.version" {
+                        provided = package.get_pretty_version().to_string();
+                    }
+                    // TODO(phase-b): mutate nested versions['versions'][$provide->getTarget()]['provided']
+                    todo!("append provided to versions['versions'][target]['provided']");
+                }
+            }
+        }
+
+        // add aliases
+        for package in &packages {
+            let Some(alias) = (package.as_any() as &dyn Any).downcast_ref::<AliasPackage>() else {
+                continue;
+            };
+            // TODO(phase-b): mutate nested versions['versions'][name]['aliases']
+            todo!("append alias->getPrettyVersion() to versions['versions'][name]['aliases']");
+            if (package.as_any() as &dyn Any).downcast_ref::<dyn RootPackageInterface>().is_some() {
+                // TODO(phase-b): same mutation on versions['root']['aliases']
+                todo!("append alias->getPrettyVersion() to versions['root']['aliases']");
+            }
+        }
+
+        if let Some(PhpMixed::Array(versions_map)) = versions.get_mut("versions") {
+            // TODO(phase-b): ksort signature mismatch on nested IndexMap; cast appropriately
+            ksort(versions_map);
+        }
+        ksort(&mut versions);
+
+        if let Some(PhpMixed::Array(versions_map)) = versions.get_mut("versions") {
+            for (_name, version) in versions_map.iter_mut() {
+                if let PhpMixed::Array(version_map) = version.as_mut() {
+                    for key in ["aliases", "replaced", "provided"] {
+                        if let Some(PhpMixed::List(list)) = version_map.get_mut(key) {
+                            // PHP: sort($versions['versions'][$name][$key], SORT_NATURAL);
+                            sort_with_flags(list, SORT_NATURAL);
+                        }
+                    }
+                }
+            }
+        }
+
+        Ok(versions)
+    }
+
+    /// @param array<string, string> $installPaths
+    /// @param array<string, int> $devPackages
+    /// @return array{pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev_requirement: bool}
+    fn dump_installed_package(
+        &self,
+        package: &dyn PackageInterface,
+        install_paths: &IndexMap<String, Option<String>>,
+        repo_dir: &str,
+        dev_packages: &PhpMixed,
+    ) -> IndexMap<String, PhpMixed> {
+        let mut reference: Option<String> = None;
+        if let Some(install_src) = package.get_installation_source() {
+            reference = if install_src == "source" {
+                package.get_source_reference().map(String::from)
+            } else {
+                package.get_dist_reference().map(String::from)
+            };
+        }
+        if reference.is_none() {
+            // PHP: ($package->getSourceReference() ?: $package->getDistReference()) ?: null;
+            let source = package.get_source_reference().unwrap_or("");
+            let dist = package.get_dist_reference().unwrap_or("");
+            let combined = if !source.is_empty() {
+                source.to_string()
+            } else {
+                dist.to_string()
+            };
+            reference = if combined.is_empty() {
+                None
+            } else {
+                Some(combined)
+            };
+        }
+
+        let install_path = if (package.as_any() as &dyn Any).downcast_ref::<dyn RootPackageInterface>().is_some() {
+            let to = self.filesystem.normalize_path(
+                &realpath(&Platform::get_cwd(false).unwrap_or_default())
+                    .unwrap_or_default(),
+            );
+            Some(self.filesystem.find_shortest_path(repo_dir, &to, true))
+        } else {
+            install_paths
+                .get(package.get_name())
+                .cloned()
+                .flatten()
+        };
+
+        let mut data: IndexMap<String, PhpMixed> = IndexMap::new();
+        data.insert(
+            "pretty_version".to_string(),
+            PhpMixed::String(package.get_pretty_version().to_string()),
+        );
+        data.insert(
+            "version".to_string(),
+            PhpMixed::String(package.get_version().to_string()),
+        );
+        data.insert(
+            "reference".to_string(),
+            match reference {
+                Some(s) => PhpMixed::String(s),
+                None => PhpMixed::Null,
+            },
+        );
+        data.insert(
+            "type".to_string(),
+            PhpMixed::String(package.get_type().to_string()),
+        );
+        data.insert(
+            "install_path".to_string(),
+            match install_path {
+                Some(s) => PhpMixed::String(s),
+                None => PhpMixed::Null,
+            },
+        );
+        data.insert("aliases".to_string(), PhpMixed::List(vec![]));
+        data.insert(
+            "dev_requirement".to_string(),
+            PhpMixed::Bool(
+                dev_packages
+                    .as_array()
+                    .map(|m| m.contains_key(package.get_name()))
+                    .unwrap_or(false),
+            ),
+        );
+
+        data
+    }
+
+    /// @param array<string, string> $installPaths
+    /// @param array<string, int> $devPackages
+    /// @return array{name: string, pretty_version: string, version: string, reference: string|null, type: string, install_path: string, aliases: string[], dev: bool}
+    fn dump_root_package(
+        &self,
+        package: &dyn RootPackageInterface,
+        install_paths: &IndexMap<String, Option<String>>,
+        dev_mode: bool,
+        repo_dir: &str,
+        dev_packages: &PhpMixed,
+    ) -> IndexMap<String, PhpMixed> {
+        let data =
+            // TODO(phase-b): RootPackageInterface trait bound — pass as &dyn PackageInterface
+            self.dump_installed_package(todo!("package as &dyn PackageInterface"), install_paths, repo_dir, dev_packages);
+
+        let mut result: IndexMap<String, PhpMixed> = IndexMap::new();
+        result.insert(
+            "name".to_string(),
+            PhpMixed::String(package.get_name().to_string()),
+        );
+        result.insert(
+            "pretty_version".to_string(),
+            data.get("pretty_version").cloned().unwrap_or(PhpMixed::Null),
+        );
+        result.insert(
+            "version".to_string(),
+            data.get("version").cloned().unwrap_or(PhpMixed::Null),
+        );
+        result.insert(
+            "reference".to_string(),
+            data.get("reference").cloned().unwrap_or(PhpMixed::Null),
+        );
+        result.insert(
+            "type".to_string(),
+            data.get("type").cloned().unwrap_or(PhpMixed::Null),
+        );
+        result.insert(
+            "install_path".to_string(),
+            data.get("install_path").cloned().unwrap_or(PhpMixed::Null),
+        );
+        result.insert(
+            "aliases".to_string(),
+            data.get("aliases").cloned().unwrap_or(PhpMixed::List(vec![])),
+        );
+        result.insert("dev".to_string(), PhpMixed::Bool(dev_mode));
+
+        result
+    }
+}