class Fontist::Indexes::IncrementalIndexUpdater

# File lib/fontist/indexes/incremental_index_updater.rb, line 16
def initialize(directory_path)
  @directory_path = directory_path
  @changes = []
end

# File lib/fontist/indexes/incremental_index_updater.rb, line 44
def added_files
  @changes.select(&:added?)
end

# File lib/fontist/indexes/incremental_index_updater.rb, line 59
def changes?
  @changes.any?
end

# File lib/fontist/indexes/incremental_index_updater.rb, line 49
def modified_files
  @changes.select(&:modified?)
end

# File lib/fontist/indexes/incremental_index_updater.rb, line 54
def removed_files
  @changes.select(&:removed?)
end

# File lib/fontist/indexes/incremental_index_updater.rb, line 64
def stats
  {
    total_changes: @changes.size,
    added: added_files.size,
    modified: modified_files.size,
    removed: removed_files.size,
  }
end

# File lib/fontist/indexes/incremental_index_updater.rb, line 23
def update
  old_snapshot = load_snapshot
  new_snapshot = create_snapshot

  @changes = if old_snapshot.nil?
               # First scan - all files are new
               new_snapshot.files.map do |file|
                 DirectoryChange.added(file[:filename], file)
               end
             else
               # Detect changes
               DirectoryChange.diff(old_snapshot, new_snapshot)
             end

  # Save new snapshot for next time
  save_snapshot(new_snapshot)

  @changes
end