module DbBrowser

# File lib/dbbrowser.rb, line 25
def self.add_database_url

  str = ENV['DATABASE_URL']
  if str.blank?
    puts "no ENV['DATABASE_URL'] found; skip adding DATABASE_URL config"
    return
  end

  ####
  # check/fix/todo:
  # for config key (use env for now)
  # use RACK_ENV or RAILS_ENV if present?? why? why not?
  # only if not already in config? possible?

  db = URI.parse( str )

  ### use spec instead of config ???

  if db.scheme == 'postgres'
    config = {
      adapter: 'postgresql',
      host: db.host,
      port: db.port,
      username: db.user,
      password: db.password,
      database: db.path[1..-1],
      encoding: 'utf8'
    }
  else  # assume sqlite for now
    config = {
      adapter: db.scheme, # sqlite3
      database: db.path[1..-1] # pluto.db (NB: cut off leading /, thus 1..-1)
    }
  end

  puts 'db settings:'
  pp config

  if ActiveRecord::Base.configurations.nil?
    puts "ActiveRecord configurations nil - set to empty hash"
    ActiveRecord::Base.configurations = {} # make it an empty hash
  end

  puts 'ar configurations (before):'
  pp ActiveRecord::Base.configurations

  ActiveRecord::Base.configurations['env'] = config

  puts 'ar configurations (after):'
  pp ActiveRecord::Base.configurations
end

# File lib/dbbrowser/version.rb, line 7
def self.root
  "#{File.expand_path( File.dirname(File.dirname(File.dirname(__FILE__))) )}"
end