class Bundler::SourceList

def add_git_source(options = {})
  add_source_to_list(Source::Git.new(options), git_sources).tap do |source|
    warn_on_git_protocol(source)
  end
end

def add_global_rubygems_remote(uri)
  global_rubygems_source.add_remote(uri)
  global_rubygems_source
end

def add_path_source(options = {})
  if options["gemspec"]
    add_source_to_list Source::Gemspec.new(options), path_sources
  else
    path_source = add_source_to_list Source::Path.new(options), path_sources
    @global_path_source ||= path_source if options["global"]
    path_source
  end
end

def add_plugin_source(source, options = {})
  add_source_to_list Plugin.source(source).new(options), @plugin_sources
end

def add_rubygems_source(options = {})
  new_source = Source::Rubygems.new(options)
  return @global_rubygems_source if @global_rubygems_source == new_source
  add_source_to_list new_source, @rubygems_sources
end

def add_source_to_list(source, list)
  list.unshift(source).uniq!
  source
end

def aggregate_global_source?
  global_rubygems_source.multiple_remotes?
end

def all_sources
  path_sources + git_sources + plugin_sources + rubygems_sources + [metadata_source]
end

def cached!
  all_sources.each(&:cached!)
end

def combine_rubygems_sources
  Source::Rubygems.new("remotes" => rubygems_remotes)
end

def default_source
  global_path_source || global_rubygems_source
end

def different_sources?(lock_sources, replacement_sources)
  !equivalent_sources?(lock_sources, replacement_sources)
end

def dup_with_replaced_sources(replacement_sources)
  new_source_list = dup
  new_source_list.replace_sources!(replacement_sources)
  new_source_list
end

def equivalent_source?(source, other_source)
  source == other_source
end

def equivalent_sources?(lock_sources, replacement_sources)
  lock_sources.sort_by(&:identifier) == replacement_sources.sort_by(&:identifier)
end

def expired_sources?(replacement_sources)
  return false if replacement_sources.empty?
  lock_sources = dup_with_replaced_sources(replacement_sources).lock_sources
  different_sources?(lock_sources, replacement_sources)
end

def get(source)
  source_list_for(source).find {|s| equivalent_source?(source, s) }
end

def get_with_fallback(source)
  get(source) || default_source
end

def global_replacement_source(replacement_sources)
  replacement_source = replacement_sources.find {|s| s == global_rubygems_source }
  return global_rubygems_source unless replacement_source
  replacement_source.local!
  replacement_source
end

def global_rubygems_source
  @global_rubygems_source ||= rubygems_aggregate_class.new("allow_local" => true)
end

def implicit_global_source?
  global_rubygems_source.no_remotes?
end

def initialize
  @path_sources           = []
  @git_sources            = []
  @plugin_sources         = []
  @global_rubygems_source = nil
  @global_path_source     = nil
  @rubygems_sources       = []
  @metadata_source        = Source::Metadata.new
  @merged_gem_lockfile_sections = false
end

def local_only!
  all_sources.each(&:local_only!)
end

def lock_other_sources
  (path_sources + git_sources + plugin_sources).sort_by(&:identifier)
end

def lock_rubygems_sources
  if merged_gem_lockfile_sections?
    [combine_rubygems_sources]
  else
    rubygems_sources.sort_by(&:identifier)
  end
end

def lock_sources
  lock_other_sources + lock_rubygems_sources
end

def map_sources(replacement_sources)
  rubygems, git, plugin = [@rubygems_sources, @git_sources, @plugin_sources].map do |sources|
    sources.map do |source|
      replacement_sources.find {|s| s == source } || source
    end
  end
  path = @path_sources.map do |source|
    replacement_sources.find {|s| s == (source.is_a?(Source::Gemspec) ? source.as_path_source : source) } || source
  end
  [rubygems, path, git, plugin]
end

def merged_gem_lockfile_sections!(replacement_source)
  @merged_gem_lockfile_sections = true
  @global_rubygems_source = replacement_source
end

def merged_gem_lockfile_sections?
  @merged_gem_lockfile_sections
end

def non_default_explicit_sources
  all_sources - [default_source, metadata_source]
end

def non_global_rubygems_sources
  @rubygems_sources
end

def remote!
  all_sources.each(&:remote!)
end

def replace_sources!(replacement_sources)
  return false if replacement_sources.empty?
  @rubygems_sources, @path_sources, @git_sources, @plugin_sources = map_sources(replacement_sources)
  @global_rubygems_source = global_replacement_source(replacement_sources)
  different_sources?(lock_sources, replacement_sources)
end

def rubygems_aggregate_class
  Source::Rubygems
end

def rubygems_remotes
  rubygems_sources.map(&:remotes).flatten.uniq
end

def rubygems_sources
  non_global_rubygems_sources + [global_rubygems_source]
end

def source_list_for(source)
  case source
  when Source::Git          then git_sources
  when Source::Path         then path_sources
  when Source::Rubygems     then rubygems_sources
  when Plugin::API::Source  then plugin_sources
  else raise ArgumentError, "Invalid source: #{source.inspect}"
  end
end

def warn_on_git_protocol(source)
  return if Bundler.settings["git.allow_insecure"]
  if /^git\:/.match?(source.uri)
    Bundler.ui.warn "The git source `#{source.uri}` uses the `git` protocol, " \
      "which transmits data without encryption. Disable this warning with " \
      "`bundle config set --local git.allow_insecure true`, or switch to the `https` " \
      "protocol to keep your data secure."
  end
end