From e012ab29e69350ff1c4f5e81d3578be951c1a4eb Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Sun, 17 May 2026 01:50:32 +0900
Subject: feat(port): port ClassMap.php

---
 .../shirabe-class-map-generator/src/class_map.rs   | 134 +++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 crates/shirabe-class-map-generator/src/class_map.rs

(limited to 'crates/shirabe-class-map-generator')

diff --git a/crates/shirabe-class-map-generator/src/class_map.rs b/crates/shirabe-class-map-generator/src/class_map.rs
new file mode 100644
index 0000000..51d2bef
--- /dev/null
+++ b/crates/shirabe-class-map-generator/src/class_map.rs
@@ -0,0 +1,134 @@
+//! ref: composer/vendor/composer/class-map-generator/src/ClassMap.php
+
+use indexmap::IndexMap;
+use shirabe_php_shim::{Countable, InvalidArgumentException, OutOfBoundsException, rtrim, strpos, strtr};
+use shirabe_external_packages::composer::pcre::preg::Preg;
+
+#[derive(Debug, Clone)]
+pub struct PsrViolationEntry {
+    pub warning: String,
+    pub class_name: String,
+}
+
+#[derive(Debug)]
+pub struct ClassMap {
+    pub map: IndexMap<String, String>,
+    ambiguous_classes: IndexMap<String, Vec<String>>,
+    psr_violations: IndexMap<String, Vec<PsrViolationEntry>>,
+}
+
+impl ClassMap {
+    pub fn new() -> Self {
+        ClassMap {
+            map: IndexMap::new(),
+            ambiguous_classes: IndexMap::new(),
+            psr_violations: IndexMap::new(),
+        }
+    }
+
+    /// Returns the class map, which is a list of paths indexed by class name
+    pub fn get_map(&self) -> &IndexMap<String, String> {
+        &self.map
+    }
+
+    /// Returns warning strings containing details about PSR-0/4 violations that were detected
+    pub fn get_psr_violations(&self) -> Vec<String> {
+        if self.psr_violations.is_empty() {
+            return vec![];
+        }
+
+        self.psr_violations
+            .values()
+            .flatten()
+            .map(|violation| violation.warning.clone())
+            .collect()
+    }
+
+    /// A map of class names to their list of ambiguous paths
+    ///
+    /// Pass `None` for `duplicates_filter` to disable filtering (equivalent to PHP's `false`).
+    /// Pass `Some(pattern)` for a regex pattern to filter out matching paths.
+    pub fn get_ambiguous_classes(
+        &self,
+        duplicates_filter: Option<&str>,
+    ) -> anyhow::Result<IndexMap<String, Vec<String>>> {
+        let duplicates_filter = match duplicates_filter {
+            None => return Ok(self.ambiguous_classes.clone()),
+            Some(pattern) => pattern,
+        };
+
+        let mut ambiguous_classes: IndexMap<String, Vec<String>> = IndexMap::new();
+        for (class, paths) in &self.ambiguous_classes {
+            let paths: Vec<String> = paths
+                .iter()
+                .filter(|path| {
+                    !Preg::is_match(duplicates_filter, &strtr(path, "\\", "/")).unwrap_or(false)
+                })
+                .cloned()
+                .collect();
+            if !paths.is_empty() {
+                ambiguous_classes.insert(class.clone(), paths);
+            }
+        }
+
+        Ok(ambiguous_classes)
+    }
+
+    /// Sorts the class map alphabetically by class names
+    pub fn sort(&mut self) {
+        self.map.sort_keys();
+    }
+
+    pub fn add_class(&mut self, class_name: String, path: String) {
+        self.psr_violations.remove(&strtr(&path, "\\", "/"));
+
+        self.map.insert(class_name, path);
+    }
+
+    pub fn get_class_path(&self, class_name: &str) -> anyhow::Result<&str> {
+        match self.map.get(class_name) {
+            Some(path) => Ok(path.as_str()),
+            None => Err(anyhow::anyhow!(OutOfBoundsException {
+                message: format!("Class {} is not present in the map", class_name),
+                code: 0,
+            })),
+        }
+    }
+
+    pub fn has_class(&self, class_name: &str) -> bool {
+        self.map.contains_key(class_name)
+    }
+
+    pub fn add_psr_violation(&mut self, warning: String, class_name: String, path: String) {
+        let path = rtrim(&strtr(&path, "\\", "/"), Some("/"));
+
+        self.psr_violations
+            .entry(path)
+            .or_default()
+            .push(PsrViolationEntry { warning, class_name });
+    }
+
+    pub fn clear_psr_violations_by_path(&mut self, path_prefix: &str) {
+        let path_prefix = rtrim(&strtr(path_prefix, "\\", "/"), Some("/"));
+
+        self.psr_violations.retain(|path, _| {
+            path != &path_prefix
+                && strpos(path, &format!("{}/", path_prefix)) != Some(0)
+        });
+    }
+
+    pub fn add_ambiguous_class(&mut self, class_name: String, path: String) {
+        self.ambiguous_classes.entry(class_name).or_default().push(path);
+    }
+
+    /// Get the raw psr violations
+    pub fn get_raw_psr_violations(&self) -> &IndexMap<String, Vec<PsrViolationEntry>> {
+        &self.psr_violations
+    }
+}
+
+impl Countable for ClassMap {
+    fn count(&self) -> i64 {
+        self.map.len() as i64
+    }
+}
-- 
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