module Sower

# File lib/sower.rb, line 79
def self.schema=(schema)
  @schema = schema
end

# File lib/sower.rb, line 5
def self.seed(clazz, filename, options = {})
  sql_path  = File.join(seeds_path, "#{filename}.sql")
  csv_path  = File.join(seeds_path, "#{filename}.csv")
  text_path = File.join(seeds_path, "#{filename}.txt")

  old_table_name = clazz.table_name
  if @schema.present?
    clazz.table_name = "#{@schema}.#{clazz.table_name}"
  end

  if clazz.respond_to?(:enumeration_model_updates_permitted=)
    clazz.enumeration_model_updates_permitted = true
  end

  if File.exists?(sql_path)
    puts "Importing #{filename} to #{clazz.table_name} as SQL"

    data = File.read(sql_path)
    ActiveRecord::Base.connection.execute data
  elsif File.exists?(csv_path)
    puts "Importing #{filename} to #{clazz.table_name} as CSV"

    index = 0
    CSV.foreach(csv_path) do |row|
      attributes = {}

      unless columns = options[:columns]
        columns = [:name, :description]
      end

      columns.each_with_index do |col, i|
        if value = row[i]
          attributes[col] = value.try(:strip)
        end
      end

      m = clazz.new(attributes)
      m.id = index
      m.save(:validate => false)
      index += 1
    end
  else
    puts "Importing #{filename} to #{clazz.table_name} as Text"

    File.foreach(text_path).each_with_index do |line, index|
      m = clazz.new(:name => line.chomp)
      m.id = index
      m.save(:validate => false)
    end
  end

  # This fixes an issue where postgres import is leaving the sequences unupdated after import.
  if clazz.count > 1
    ActiveRecord::Base.connection.execute \
      "SELECT setval('#{clazz.table_name}_id_seq'::regclass, MAX(id)) FROM #{clazz.table_name};"
  end

  clazz.table_name = old_table_name
end

# File lib/sower.rb, line 69
def self.seeds_path
  if @seeds_path
    @seeds_path
  elsif defined?(Rails)
    Rails.root.join('db/seeds')
  else
    raise "No path to seeds found! Set Sower.seeds_path"
  end
end

# File lib/sower.rb, line 65
def self.seeds_path=(path)
  @seeds_path = path
end