hex.rb

module PackageManager
  class Hex < Base
    HAS_VERSIONS = true
    HAS_DEPENDENCIES = true
    HAS_OWNERS = true
    BIBLIOTHECARY_SUPPORT = true
    URL = 'https://hex.pm'
    COLOR = '#6e4a7e'

    def self.package_link(project, version = nil)
      "https://hex.pm/packages/#{project.name}/#{version}"
    end

    def self.download_url(name, version = nil)
      "https://repo.hex.pm/tarballs/#{name}-#{version}.tar"
    end

    def self.documentation_url(name, version = nil)
      "http://hexdocs.pm/#{name}/#{version}"
    end

    def self.project_names
      page = 1
      projects = []
      while page < 1000
        r = get("https://hex.pm/api/packages?page=#{page}")
        break if r == []
        projects += r
        page +=1
      end
      projects.map{|project| project['name'] }
    end

    def self.recent_names
      (get('https://hex.pm/api/packages?sort=inserted_at').map{|project| project['name'] } +
      get('https://hex.pm/api/packages?sort=updated_at').map{|project| project['name'] }).uniq
    end

    def self.project(name)
      sleep 30
      get("https://hex.pm/api/packages/#{name}")
    end

    def self.mapping(project)
      links = project["meta"].fetch("links", {}).each_with_object({}) do |(k, v), h|
        h[k.downcase] = v
      end
      {
        :name => project["name"],
        :homepage => links.except('github').first.try(:last),
        :repository_url => links['github'],
        :description => project["meta"]["description"],
        :licenses => repo_fallback(project["meta"].fetch("licenses", []).join(','), links.except('github').first.try(:last))
      }
    end

    def self.versions(project)
      project["releases"].map do |version|
        {
          :number => version['version'],
          :published_at => version['inserted_at']
        }
      end
    end

    def self.dependencies(name, version, _project)
      deps = get("https://hex.pm/api/packages/#{name}/releases/#{version}")['requirements']
      return [] if deps.nil?
      deps.map do |k, v|
        {
          project_name: k,
          requirements: v['requirement'],
          kind: 'runtime',
          optional: v['optional'],
          platform: self.name.demodulize
        }
      end
    end

    def self.download_registry_users(name)
      json = get_json("https://hex.pm/api/packages/#{name}")
      json['owners'].map do |user|
        {
          uuid: "hex-"+user['username'],
          email: user['email'],
          login: user['username'],
        }
      end
    rescue
      []
    end

    def self.registry_user_url(login)
      "https://hex.pm/users/#{login}"
    end
  end
end