76 lines
2 KiB
Ruby
76 lines
2 KiB
Ruby
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require "async/http/internet/instance"
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module NCMall
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# Share a pool of persistent connections, rather than reconnecting on
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# each request. (This library does that automatically!)
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INTERNET = Async::HTTP::Internet.instance
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# Load the NC home page, and return its useful data.
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HOME_PAGE_URL = "https://ncmall.neopets.com/mall/ajax/home_page.phtml"
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def self.load_home_page
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response = Sync do
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INTERNET.get(HOME_PAGE_URL, [
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["User-Agent", Rails.configuration.user_agent_for_neopets],
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])
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end
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if response.status != 200
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raise ResponseNotOK.new(response.status),
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"expected status 200 but got #{response.status} (#{HOME_PAGE_URL})"
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end
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parse_nc_page response.body.read
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end
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private
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# Given a string of NC page data, parse the useful data out of it!
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def self.parse_nc_page(nc_page_str)
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begin
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nc_page = JSON.parse(nc_page_str)
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rescue JSON::ParserError
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Rails.logger.debug "Unexpected NC page response:\n#{nc_page_str}"
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raise UnexpectedResponseFormat,
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"failed to parse NC page response as JSON"
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end
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unless nc_page.has_key? "object_data"
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raise UnexpectedResponseFormat, "missing field object_data in NC page"
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end
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items = nc_page["object_data"].values.map do |item_info|
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{
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id: item_info["id"],
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name: item_info["name"],
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description: item_info["description"],
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price: item_info["price"],
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discount: parse_item_discount(item_info),
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is_available: item_info["isAvailable"] == 1,
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}
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end
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{items:}
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end
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# Given item info, return a hash of discount-specific info, if any.
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def self.parse_item_discount(item_info)
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discount_price = item_info["discountPrice"]
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return nil unless discount_price.present? && discount_price > 0
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{
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price: discount_price,
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start: item_info["discountBegin"],
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end: item_info["discountEnd"],
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}
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end
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class ResponseNotOK < StandardError
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attr_reader :status
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def initialize(status)
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super
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@status = status
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end
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end
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class UnexpectedResponseFormat < StandardError;end
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end
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