class CreatePostUrlSanitisationRules < ActiveRecord::Migration[8.0]
  def up
    create_table :post_url_sanitisation_rules,
                 id: :integer,
                 primary_key: :priority do |t|
      t.string :source_pattern, null: false
      t.string :replacement, null: false
      t.timestamps
      t.datetime :discarded_at
      t.index :source_pattern, unique: true
      t.index :discarded_at
    end

    now = ActiveRecord::Base.connection.quote(Time.current)
    execute <<~SQL
      INSERT INTO
        post_url_sanitisation_rules(priority, source_pattern, replacement, created_at, updated_at)
      VALUES
        (10, '\\Ahttps?://youtu\\\\.be/([^/?#]+)(?:[?#].*)?\\z',
             'https://www.youtube.com/watch?v=\\\\1',
             #{ now }, #{ now })
      , (20, '\\Ahttps?://(?:www\\\\.|m\\\\.)?youtube\\\\.com/live/([^/?#]+)(?:[?#].*)?\\z',
             'https://www.youtube.com/watch?v=\\\\1',
             #{ now }, #{ now })
      , (30, '\\Ahttps?://(?:www\\\\.|m\\\\.)?youtube\\\\.com/shorts/([^/?#]+)(?:[?#].*)?\\z',
             'https://www.youtube.com/watch?v=\\\\1',
             #{ now }, #{ now })
      , (40, '\\Ahttps?://(?:www\\\\.|m\\\\.)?youtube\\\\.com/embed/([^/?#]+)(?:[?#].*)?\\z',
             'https://www.youtube.com/watch?v=\\\\1',
             #{ now }, #{ now })
      , (50, '\\Ahttps?://(?:www\\\\.|m\\\\.)?youtube\\\\.com/watch\\\\?(?:[^#&]+&)*v=([^&#]+)(?:[&#].*)?\\z',
             'https://www.youtube.com/watch?v=\\\\1',
             #{ now }, #{ now })
      , (60, '\\Ahttps?://nico\\\\.ms/([^/?#]+)(?:[?#].*)?\\z',
             'https://www.nicovideo.jp/watch/\\\\1',
             #{ now }, #{ now })
      , (70, '\\Ahttps?://(?:www\\\\.)?nicovideo\\\\.jp/watch/([^?#/]+)(?:[?#].*)?\\z',
             'https://www.nicovideo.jp/watch/\\\\1',
             #{ now }, #{ now })
      ;
    SQL
  end

  def down
    drop_table :post_url_sanitisation_rules
  end
end