require "json"

require "../templates/businessrow.cr"
require "../api/yelp.cr"

module Wince
  @@main_window_id = 0_u32
  @@business_rows = [] of BusinessRow
  @@business_ids = [] of String

  def activate(app : Adw::Application)
    main_window = APP.window_by_id(@@main_window_id)
    return main_window.present if main_window

    window = Adw::ApplicationWindow.cast(B_UI["mainWindow"])
    window.application = app
    
    @@main_window_id = window.id

    SEARCH_BUTTON.clicked_signal.connect do
      handle_search
    end

    BUSINESS_LIST.row_selected_signal.connect do
      handle_business_select
    end

    window.present
  end

  def yelp_response_to_business_ids(response : JSON::Any)
    response["businesses"].as_a.map { |b| b["id"].as_s }
  end

  def yelp_response_to_business_rows(response : JSON::Any)
    response["businesses"].as_a.map do |business|
      name = business["name"].as_s? || ""
      rating = business["rating"].as_f32
      open = business["is_closed"].as_bool
      distance = business["distance"].as_f32

      BusinessRow.new(name, rating, open, distance)
    end
  end

  def clear_business_rows
    @@business_rows.each { |row| BUSINESS_LIST.remove(row) }
  end

  def handle_search
    search = SEARCH_ENTRY.buffer.text
    location = LOCATION_ENTRY.buffer.text

    if search.blank? || location.blank?
      LEAFLET.visible = false
      POWERD_BY_TEXT.visible = true
      return
    end

    LEAFLET.visible = true
    POWERD_BY_TEXT.visible = false

    response = Yelp.search_businesses(search, location)

    if response.status_code != 200
      puts "api call error"
      puts response.body
      return #TODO: show a toast here
    end

    response_json = JSON.parse(response.body)

    clear_business_rows()
    @@business_ids = yelp_response_to_business_ids(response_json)
    @@business_rows = yelp_response_to_business_rows(response_json)
    @@business_rows.each do |row|
      BUSINESS_LIST.append(row)
    end
  end

  def handle_business_select
    index = @@business_rows.index(BUSINESS_LIST.selected_row) || 0
    id = @@business_ids[index]
    puts id
    # TODO call yelp and show the results
  end

  APP.activate_signal.connect(->activate(Adw::Application))
  exit(APP.run(ARGV))
end