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path: root/crates/shirabe/src/package/version/version_parser.rs
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//! ref: composer/src/Composer/Package/Version/VersionParser.php

use indexmap::IndexMap;
use std::sync::{Arc, LazyLock, Mutex};

use shirabe_external_packages::composer::pcre::preg::Preg;
use shirabe_semver::constraint::constraint_interface::ConstraintInterface;
use shirabe_semver::semver::Semver;
use shirabe_semver::version_parser::VersionParser as SemverVersionParser;

use crate::repository::platform_repository::PlatformRepository;

static CONSTRAINTS: LazyLock<Mutex<IndexMap<String, Arc<dyn ConstraintInterface + Send + Sync>>>> =
    LazyLock::new(|| Mutex::new(IndexMap::new()));

#[derive(Debug)]
pub struct VersionParser {
    inner: SemverVersionParser,
}

impl VersionParser {
    pub const DEFAULT_BRANCH_ALIAS: &'static str = "9999999-dev";

    pub fn parse_constraints(&self, constraints: &str) -> anyhow::Result<Arc<dyn ConstraintInterface + Send + Sync>> {
        let mut cache = CONSTRAINTS.lock().unwrap();
        if !cache.contains_key(constraints) {
            let parsed = self.inner.parse_constraints(constraints)?;
            cache.insert(constraints.to_string(), Arc::from(parsed));
        }
        Ok(Arc::clone(cache.get(constraints).unwrap()))
    }

    pub fn parse_name_version_pairs(&self, pairs: Vec<String>) -> anyhow::Result<Vec<IndexMap<String, String>>> {
        let pairs: Vec<String> = pairs;
        let mut result: Vec<IndexMap<String, String>> = Vec::new();
        let count = pairs.len();
        let mut i = 0_usize;
        while i < count {
            let mut pair = Preg::replace(r"{^([^=: ]+)[=: ](.*)$}", "$1 $2", pairs[i].trim().to_string())?;
            if !pair.contains(' ')
                && i + 1 < count
                && !pairs[i + 1].contains('/')
                && !Preg::is_match(r"{(?<=[a-z0-9_/-])\*|\*(?=[a-z0-9_/-])}i", &pairs[i + 1])?
                && !PlatformRepository::is_platform_package(&pairs[i + 1])
            {
                pair += &format!(" {}", pairs[i + 1]);
                i += 1;
            }
            if pair.contains(' ') {
                let parts: Vec<&str> = pair.splitn(2, ' ').collect();
                let name = parts[0].to_string();
                let version = parts[1].to_string();
                let mut map = IndexMap::new();
                map.insert("name".to_string(), name);
                map.insert("version".to_string(), version);
                result.push(map);
            } else {
                let mut map = IndexMap::new();
                map.insert("name".to_string(), pair);
                result.push(map);
            }
            i += 1;
        }
        Ok(result)
    }

    pub fn is_upgrade(normalized_from: &str, normalized_to: &str) -> anyhow::Result<bool> {
        if normalized_from == normalized_to {
            return Ok(true);
        }

        let mut normalized_from = normalized_from.to_string();
        let mut normalized_to = normalized_to.to_string();

        if ["dev-master", "dev-trunk", "dev-default"].contains(&normalized_from.as_str()) {
            normalized_from = VersionParser::DEFAULT_BRANCH_ALIAS.to_string();
        }
        if ["dev-master", "dev-trunk", "dev-default"].contains(&normalized_to.as_str()) {
            normalized_to = VersionParser::DEFAULT_BRANCH_ALIAS.to_string();
        }

        if normalized_from.starts_with("dev-") || normalized_to.starts_with("dev-") {
            return Ok(true);
        }

        let sorted = Semver::sort(vec![normalized_to.clone(), normalized_from.clone()])?;

        Ok(sorted[0] == normalized_from)
    }
}