class Bundler::SpecSet

# File bundler/spec_set.rb, line 10
def initialize(specs)
  @specs = specs
end

# File bundler/spec_set.rb, line 158
def -(other)
  SpecSet.new(to_a - other.to_a)
end

# File bundler/spec_set.rb, line 179
def <<(spec)
  @specs << spec
end

# File bundler/spec_set.rb, line 80
def [](key)
  key = key.name if key.respond_to?(:name)
  lookup[key]&.reverse || []
end

# File bundler/spec_set.rb, line 85
def []=(key, value)
  @specs << value

  reset!
end

# File bundler/spec_set.rb, line 50
def add_extra_platforms!(platforms)
  return platforms.concat([Gem::Platform::RUBY]).uniq if @specs.empty?

  new_platforms = all_platforms.select do |platform|
    next if platforms.include?(platform)
    next unless GemHelpers.generic(platform) == Gem::Platform::RUBY

    complete_platform(platform)
  end
  return platforms if new_platforms.empty?

  platforms.concat(new_platforms)

  less_specific_platform = new_platforms.find {|platform| platform != Gem::Platform::RUBY && Bundler.local_platform === platform && platform === Bundler.local_platform }
  platforms.delete(Bundler.local_platform) if less_specific_platform

  platforms
end

# File bundler/spec_set.rb, line 91
def delete(specs)
  Array(specs).each {|spec| @specs.delete(spec) }

  reset!
end

# File bundler/spec_set.rb, line 166
def delete_by_name(name)
  @specs.reject! {|spec| spec.name == name }

  reset!
end

# File bundler/spec_set.rb, line 195
def each(&b)
  sorted.each(&b)
end

# File bundler/spec_set.rb, line 191
def empty?
  @specs.empty?
end

# File bundler/spec_set.rb, line 162
def find_by_name_and_platform(name, platform)
  @specs.detect {|spec| spec.name == name && spec.match_platform(platform) }
end

# File bundler/spec_set.rb, line 14
def for(dependencies, platforms_or_legacy_check = [nil], legacy_platforms = [nil], skips: [])
  platforms = if [true, false].include?(platforms_or_legacy_check)
    Bundler::SharedHelpers.major_deprecation 2,
      "SpecSet#for received a `check` parameter, but that's no longer used and deprecated. " \
      "SpecSet#for always implicitly performs validation. Please remove this parameter",
      print_caller_location: true

    legacy_platforms
  else
    platforms_or_legacy_check
  end

  materialize_dependencies(dependencies, platforms, skips: skips)

  @materializations.flat_map(&:specs).uniq
end

# File bundler/spec_set.rb, line 127
def incomplete_for_platform?(deps, platform)
  return false if @specs.empty?

  validation_set = self.class.new(@specs)
  validation_set.for(deps, [platform])

  validation_set.incomplete_specs.any?
end

# File bundler/spec_set.rb, line 150
def incomplete_specs
  @materializations.flat_map(&:incomplete_specs)
end

# File bundler/spec_set.rb, line 154
def insecurely_materialized_specs
  materialized_specs.select(&:insecurely_materialized?)
end

# File bundler/spec_set.rb, line 183
def length
  @specs.length
end

# File bundler/spec_set.rb, line 109
def materialize(deps)
  materialize_dependencies(deps)

  SpecSet.new(materialized_specs)
end

# File bundler/spec_set.rb, line 117
def materialized_for_all_platforms
  @specs.map do |s|
    next s unless s.is_a?(LazySpecification)
    s.source.remote!
    spec = s.materialize_strictly
    raise GemNotFound, "Could not find #{s.full_name} in any of the sources" unless spec
    spec
  end
end

# File bundler/spec_set.rb, line 142
def missing_specs
  @materializations.flat_map(&:completely_missing_specs)
end

# File bundler/spec_set.rb, line 136
def missing_specs_for(dependencies)
  materialize_dependencies(dependencies)

  missing_specs
end

# File bundler/spec_set.rb, line 199
def names
  lookup.keys
end

# File bundler/spec_set.rb, line 31
def normalize_platforms!(deps, platforms)
  complete_platforms = add_extra_platforms!(platforms)

  complete_platforms.map do |platform|
    next platform if platform == Gem::Platform::RUBY

    begin
      Integer(platform.version)
    rescue ArgumentError, TypeError
      next platform
    end

    less_specific_platform = Gem::Platform.new([platform.cpu, platform.os, nil])
    next platform if incomplete_for_platform?(deps, less_specific_platform)

    less_specific_platform
  end.uniq
end

# File bundler/spec_set.rb, line 146
def partially_missing_specs
  @materializations.flat_map(&:partially_missing_specs)
end

# File bundler/spec_set.rb, line 187
def size
  @specs.size
end

# File bundler/spec_set.rb, line 97
def sort!
  self
end

# File bundler/spec_set.rb, line 101
def to_a
  sorted.dup
end

# File bundler/spec_set.rb, line 105
def to_hash
  lookup.dup
end

# File bundler/spec_set.rb, line 203
def valid?(s)
  s.matches_current_metadata? && valid_dependencies?(s)
end

# File bundler/spec_set.rb, line 69
def validate_deps(s)
  s.runtime_dependencies.each do |dep|
    next if dep.name == "bundler"

    return :missing unless names.include?(dep.name)
    return :invalid if none? {|spec| dep.matches_spec?(spec) }
  end

  :valid
end

# File bundler/spec_set.rb, line 172
def what_required(spec)
  unless req = find {|s| s.runtime_dependencies.any? {|d| d.name == spec.name } }
    return [spec]
  end
  what_required(req) << spec
end

# File bundler/spec_set.rb, line 272
def all_platforms
  @specs.flat_map {|spec| spec.source.specs.search([spec.name, spec.version]).map(&:platform) }.uniq
end

# File bundler/spec_set.rb, line 245
def complete_platform(platform)
  new_specs = []

  valid_platform = lookup.all? do |_, specs|
    spec = specs.first
    matching_specs = spec.source.specs.search([spec.name, spec.version])
    platform_spec = GemHelpers.select_best_platform_match(matching_specs, platform).find do |s|
      valid?(s)
    end

    if platform_spec
      new_specs << LazySpecification.from_spec(platform_spec) unless specs.include?(platform_spec)
      true
    else
      false
    end
  end

  if valid_platform && new_specs.any?
    @specs.concat(new_specs)

    reset!
  end

  valid_platform
end

# File bundler/spec_set.rb, line 292
def extract_circular_gems(error)
  error.message.scan(/@name="(.*?)"/).flatten
end

# File bundler/spec_set.rb, line 296
def lookup
  @lookup ||= begin
    lookup = {}
    @specs.each do |s|
      lookup[s.name] ||= []
      lookup[s.name] << s
    end
    lookup
  end
end

# File bundler/spec_set.rb, line 209
def materialize_dependencies(dependencies, platforms = [nil], skips: [])
  handled = ["bundler"].product(platforms).map {|k| [k, true] }.to_h
  deps = dependencies.product(platforms)
  @materializations = []

  loop do
    break unless dep = deps.shift

    dependency = dep[0]
    platform = dep[1]
    name = dependency.name

    key = [name, platform]
    next if handled.key?(key)

    handled[key] = true

    materialization = Materialization.new(dependency, platform, candidates: lookup[name])

    deps.concat(materialization.dependencies) if materialization.complete?

    @materializations << materialization unless skips.include?(name)
  end

  @materializations
end

# File bundler/spec_set.rb, line 236
def materialized_specs
  @materializations.filter_map(&:materialized_spec)
end

# File bundler/spec_set.rb, line 240
def reset!
  @sorted = nil
  @lookup = nil
end

# File bundler/spec_set.rb, line 280
def sorted
  rake = @specs.find {|s| s.name == "rake" }
  begin
    @sorted ||= ([rake] + tsort).compact.uniq
  rescue TSort::Cyclic => error
    cgems = extract_circular_gems(error)
    raise CyclicDependencyError, "Your bundle requires gems that depend" \
      " on each other, creating an infinite loop. Please remove either" \
      " gem '#{cgems[0]}' or gem '#{cgems[1]}' and try again."
  end
end

# File bundler/spec_set.rb, line 312
def tsort_each_child(s)
  s.dependencies.sort_by(&:name).each do |d|
    next if d.type == :development

    specs_for_name = lookup[d.name]
    next unless specs_for_name

    specs_for_name.each {|s2| yield s2 }
  end
end

# File bundler/spec_set.rb, line 307
def tsort_each_node
  # MUST sort by name for backwards compatibility
  @specs.sort_by(&:name).each {|s| yield s }
end

# File bundler/spec_set.rb, line 276
def valid_dependencies?(s)
  validate_deps(s) == :valid
end