module C80Map

  class MapJson < ActiveRecord::Base

    def self.update_json
      locations_path = Rails.root.join("public", "locations.json")
      locs = File.read(locations_path)
      # puts "<MapJson.update_json> #{ Rails.root.join("public", "locations.json") }"

      locs_hash = JSON.parse(locs)

      # обходим все Building и составляем массив вида
      # [{id, object_type=object_type, coords, building_hash, img, childs:[<areas>]},..]
      buildings_to_location_json = []
      Building.all.each do |b|

        # сначала соберём детей - Area
        childs = []
        b.areas.each do |area|
          Rails.logger.debug "<MapJson.update_json> area #{area}"

          ab = {
              id: area.id,
              object_type: 'area',
              coords: area.coords.split(','),
              area_hash: {
                  id: 2,
                  title: "Площадь #{area.id}.#{area.id}",
                  is_free: true,
                  props: {
                      square: "124 кв.м.",
                      floor_height: "6 кв. м",
                      column_step: "2 м",
                      gate_type: "распашные",
                      communications: "Интернет, электричество, водоснабжение",
                      price: "от 155 руб/кв.м в месяц"
                  }
              }
          }
          childs << ab
        end

        ob = {
            id: b.id,
            object_type: 'building',
            coords: b.coords.split(","),
            building_hash: {
                id: 2,
                title: "Здание 2",
                props: {
                    square: "1234 кв.м.",
                    square_free: "124 кв. м",
                    floor_height: "6 кв. м",
                    column_step: "2 м",
                    gate_type: "рaспашные",
                    communications: "Интернет, электричество, водоснабжение",
                    price: "от 155 руб/кв.м в месяц"
                }
            },
            img: {
                bg: {
                    src: b.img_bg.url
                },
                overlay: {
                    src: b.img_overlay.url
                }
            },
            childs: childs
        }
        buildings_to_location_json << ob
      end

      # просто заменяем всех детей
      locs_hash["childs"] = buildings_to_location_json

      Rails.logger.debug "<MapJson.update_json> #{locs_hash}"

      File.open(locations_path, 'w') do |f|
        f.write(locs_hash.to_json)
      end
    end

  end

end