class MigrateUserSettingsWorker
  include Sidekiq::Worker

  SQL = <<~SQL.freeze
    WITH settings_data AS (
      SELECT
        data ->> 'brand_color1' AS brand_color1,
        data ->> 'brand_color2' AS brand_color2,
        CASE WHEN config_font='default' THEN 0
            WHEN config_font='comic_sans' THEN 1
            WHEN config_font='monospace' THEN 2
            WHEN config_font='open_dyslexic' THEN 3
            WHEN config_font='sans_serif' THEN 4
            WHEN config_font='serif' THEN 5
            ELSE 0
        END
        config_font,
        CASE WHEN config_navbar='default_navbar' THEN 0
            WHEN config_navbar='static_navbar' THEN 1
            ELSE 0
        END
        config_navbar,
        CASE WHEN config_theme='default_theme' THEN 0
            WHEN config_theme='minimal_light_theme' THEN 1
            WHEN config_theme='night_theme' THEN 2
            WHEN config_theme='pink_theme' THEN 3
            WHEN config_theme='ten_x_hacker_theme' THEN 4
            ELSE 0
        END
        config_theme,
        COALESCE(display_announcements, true),
        COALESCE((data ->> 'display_email_on_profile')::boolean, false) as display_email_on_profile,
        COALESCE(display_sponsors, true),
        CASE WHEN editor_version='v2' THEN 0
              WHEN editor_version='v1' THEN 1
              ELSE 0
        END
        editor_version,
        experience_level,
        COALESCE(feed_mark_canonical, false),
        COALESCE(feed_referential_link, true),
        feed_url,
        inbox_guidelines,
        CASE WHEN inbox_type='private' THEN 0
              WHEN inbox_type='open' THEN 1
              ELSE 0
        END
        inbox_type,
        COALESCE(permit_adjacent_sponsors, true),
        users.id AS user_id,
        NOW(),
        NOW()
      FROM users
      JOIN profiles
        ON profiles.user_id = users.id
      WHERE users.id = $1
    )
    INSERT INTO users_settings (brand_color1, brand_color2, config_font, config_navbar, config_theme, display_announcements, display_email_on_profile, display_sponsors, editor_version, experience_level, feed_mark_canonical, feed_referential_link, feed_url, inbox_guidelines, inbox_type, permit_adjacent_sponsors, user_id, created_at, updated_at)
      SELECT * FROM settings_data
      ON CONFLICT (user_id) DO UPDATE
        SET brand_color1 = EXCLUDED.brand_color1,
            brand_color2 = EXCLUDED.brand_color2,
            config_font = EXCLUDED.config_font,
            config_navbar = EXCLUDED.config_navbar,
            config_theme = EXCLUDED.config_theme,
            display_announcements = EXCLUDED.display_announcements,
            display_email_on_profile = EXCLUDED.display_email_on_profile,
            display_sponsors = EXCLUDED.display_sponsors,
            editor_version = EXCLUDED.editor_version,
            experience_level = EXCLUDED.experience_level,
            feed_mark_canonical = EXCLUDED.feed_mark_canonical,
            feed_referential_link = EXCLUDED.feed_referential_link,
            feed_url = EXCLUDED.feed_url,
            inbox_guidelines = EXCLUDED.inbox_guidelines,
            inbox_type = EXCLUDED.inbox_type,
            permit_adjacent_sponsors = EXCLUDED.permit_adjacent_sponsors,
            updated_at = NOW()
  SQL

  def perform(user_id)
    Users::Setting.connection.exec_insert SQL, nil, [user_id]
  end
end