service/src/service/environment.cr

require "specparser"

require "./context.cr"

class Environment
	enum Type
		Prefix
		RootFileSystem
	end

	getter name : String
	getter type : Type = Type::Prefix
	getter files = Array(ServiceDefinition::FileDefinition).new

	# The place we’ll put services’ data and configuration.
	@root : String?

	@context : Service::Context

	def initialize(context)
		initialize context, "root"
	end

	def initialize(@context, @name, type = "prefix")
		@type = Type.parse type

		@files = Array(ServiceDefinition::FileDefinition).new
	end

	def initialize(@context, @name, specs : SpecParser)
		assignments = specs.assignments

		assignments["type"].try &.as_s.tap do |type|
			@type = Type.parse type
		end

		specs.sections.select(&.name.==("check")).each do |check|
			@files << ServiceDefinition::FileDefinition.new check
		end
	end

	def root
		@root || "#{SERVED_DATA_DIRECTORY}/#{@name}"
	end

	def write(dir : String)
		File.write "#{dir}/#{@name}.spec", to_spec
	end

	def remove(dir : String)
		File.delete "#{dir}/#{@name}.spec"
	end

	def to_spec
		[
			"type: #{@type.to_s}"
		].join("\n") + "\n"
	end

	def get_provider(token)
		@context.services.find do |service|
			service.environment == self && service.provides? token
		end.try &.id
	end

	def to_s
		"#{name} (#{type.to_s.downcase})"
	end
end