Jorge Manrubia
82 lines
2.5 KiB
Ruby
82 lines
2.5 KiB
Ruby
class Command::Parser
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attr_reader :context
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delegate :user, :cards, :filter, to: :context
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def initialize(context)
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@context = context
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end
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def parse(string)
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parse_command(string).tap do |command|
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command.user = user
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command.line ||= string
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command.context ||= context
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end
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end
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private
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def parse_command(string)
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command_name, *command_arguments = string.strip.split(" ")
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case command_name
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when /^#/
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Command::FilterByTag.new(tag_title: tag_title_from(string), params: filter.as_params)
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when /^@/
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Command::GoToUser.new(user_id: assignee_from(command_name)&.id)
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when "/assign", "/assignto"
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Command::Assign.new(assignee_ids: assignees_from(command_arguments).collect(&:id), card_ids: cards.ids)
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when "/insight"
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Command::GetInsight.new(query: command_arguments.join(" "), card_ids: cards.ids)
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when "/clear"
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Command::ClearFilters.new(params: filter.as_params)
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when "/close"
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Command::Close.new(card_ids: cards.ids, reason: command_arguments.join(" "))
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when "/visit"
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Command::VisitUrl.new(url: command_arguments.first)
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when "/tag"
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Command::Tag.new(tag_title: tag_title_from(command_arguments.join(" ")), card_ids: cards.ids)
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else
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parse_free_string(string)
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end
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end
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private
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def assignees_from(strings)
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Array(strings).filter_map do |string|
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assignee_from(string)
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end
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end
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# TODO: This is temporary as it can be ambiguous. We should inject the user ID in the command
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# under the hood instead, as determined by the user picker. E.g: @1234.
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def assignee_from(string)
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string_without_at = string.delete_prefix("@")
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User.all.find { |user| user.mentionable_handles.include?(string_without_at) }
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end
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def tag_title_from(string)
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string.gsub(/^#/, "")
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end
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def parse_free_string(string)
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if cards = multiple_cards_from(string)
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Command::FilterCards.new(card_ids: cards.ids, params: filter.as_params)
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elsif card = single_card_from(string)
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Command::GoToCard.new(card_id: card.id)
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else
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Command::Ai::Parser.new(context).parse(string)
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end
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end
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def multiple_cards_from(string)
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if tokens = string.split(/[\s,]+/).filter { it =~ /\A\d+\z/ }.presence
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user.accessible_cards.where(id: tokens).presence if tokens.many?
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end
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end
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def single_card_from(string)
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user.accessible_cards.find_by_id(string)
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end
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end
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