# Copyright, 2015, by Samuel G. D. Williams. <http://www.codeotaku.com>
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# THE SOFTWARE.

require 'geospatial/circle'
require_relative 'visualization'

RSpec.describe Geospatial::Circle do
	let(:lake_tekapo) {Geospatial::Location.new(170.53, -43.89)}
	let(:lake_alex) {Geospatial::Location.new(170.45, -43.94)}
	let(:sydney) {Geospatial::Location.new(151.21, -33.85)}
	
	let(:new_zealand) {Geospatial::Box.from_bounds(Vector[166.0, -48.0], Vector[180.0, -34.0])}
	let(:australia) {Geospatial::Box.from_bounds(Vector[112.0, -45.0], Vector[155.0, -10.0])}
	
	let(:circle_lake_tekapo) {Geospatial::Circle.new(lake_tekapo, 10_000)}
	let(:circle_lake_alex) {Geospatial::Circle.new(lake_tekapo, 10_000)}
	let(:circle_sydney) {Geospatial::Circle.new(sydney, 10_000)}
	let(:circle_new_zealand) {Geospatial::Circle.new(lake_tekapo, 1_000_000)}
	
	it "should intersect circles" do
		expect(circle_lake_tekapo).to be_intersect(circle_lake_alex)
	end
	
	it "should not intersect distant circles" do
		expect(circle_lake_tekapo).to_not be_intersect(circle_sydney)
	end
	
	it "should include circles" do
		expect(circle_new_zealand).to be_include(circle_lake_tekapo)
		expect(circle_new_zealand).to be_include(circle_lake_alex)
	end
	
	it "should not include distant circles" do
		expect(circle_new_zealand).to_not be_include(circle_sydney)
	end
	
	it "can generate visualisation" do
		map = Geospatial::Map.for_earth
		
		map << lake_tekapo
		
		circle = Geospatial::Circle.new(lake_tekapo, 100_000)
		
		Geospatial::Visualization.for_map(map) do |pdf, origin|
			#count = 0
			map.traverse(circle, depth: map.order - 10) do |child, prefix, order|
				#count += 1
				size = child.size
				top_left = (origin + child.min) + Vector[0, size[1]]
				pdf.rectangle(top_left.to_a, *size.to_a)
				# puts "#{top_left.to_a} #{size.to_a}"
			end
			
			#puts "count=#{count}"
			
			pdf.fill_and_stroke
		end.render_file "circle.pdf"
	end
end