class Fontist::SystemIndexFontCollection

# File lib/fontist/system_index.rb, line 46
def self.from_file(path:, paths_loader:)
  # If the file does not exist, return a new collection
  return new.set_content(path, paths_loader) unless File.exist?(path)

  from_yaml(File.read(path)).set_content(path, paths_loader)
end

# File lib/fontist/system_index.rb, line 108
def build(forced: false)
  previous_index = load_index
  updated_fonts = update
  if forced || changed?(updated_fonts, previous_index.fonts || [])
    to_file(@path)
  end

  self
end

# File lib/fontist/system_index.rb, line 63
def check_index
  Fontist.formulas_repo_path_exists!

  Array(fonts).each do |font|
    missing_keys = ALLOWED_KEYS.reject do |key|
      font.send(key)
    end

    raise_font_index_corrupted(font, missing_keys) if missing_keys.any?
  end
end

# File lib/fontist/system_index.rb, line 80
def find(font, style)
  found_fonts = index.select do |file|
    file.family_name.casecmp?(font) &&
      (style.nil? || file.type.casecmp?(style))
  end

  found_fonts.empty? ? nil : found_fonts
end

# File lib/fontist/system_index.rb, line 89
def index
  return fonts unless index_changed?

  build
  check_index

  fonts
end

# File lib/fontist/system_index.rb, line 98
def index_changed?
  fonts.nil? || fonts.empty? || font_paths != (@paths_loader&.call || []).sort.uniq
end

# File lib/fontist/system_index.rb, line 118
def rebuild
  build(forced: true)
end

# File lib/fontist/system_index.rb, line 53
def set_content(path, paths_loader)
  tap do |content|
    content.set_path(path)
    content.set_path_loader(paths_loader)
  end
end

# File lib/fontist/system_index.rb, line 38
def set_path(path)
  @path = path
end

# File lib/fontist/system_index.rb, line 42
def set_path_loader(paths_loader)
  @paths_loader = paths_loader
end

# File lib/fontist/system_index.rb, line 75
def to_file(path)
  FileUtils.mkdir_p(File.dirname(path))
  File.write(path, to_yaml)
end

# File lib/fontist/system_index.rb, line 102
def update
  tap do |col|
    col.fonts = detect_paths(@paths_loader&.call || [])
  end
end