package registry

import "sort"

func (r *Registry) List() []Package {
	r.mu.RLock()
	defer r.mu.RUnlock()
	result := make([]Package, 0, len(r.packages))
	for _, versions := range r.packages {
		if len(versions) == 0 {
			continue
		}
		keys := make([]string, 0, len(versions))
		for version := range versions {
			keys = append(keys, version)
		}
		sort.Slice(keys, func(i, j int) bool { return CompareVersions(keys[i], keys[j]) > 0 })
		result = append(result, versions[keys[0]])
	}
	sort.Slice(result, func(i, j int) bool { return result[i].Name < result[j].Name })
	return result
}