ragchew.site/app.rb at master · seven1m/ragchew.site · GitHub

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require 'bundler/setup'

require 'sinatra'
require 'sinatra/reloader' if development?
require 'rack/attack'
require_relative './lib/abuse_middleware'

require_relative './boot'

disable :protection
set :host_authorization, { permitted_hosts: [] }

authenticated_request = lambda do |req|
  begin
    cookies = Rack::Utils.parse_cookies(req.env)
    return true if cookies['rack.session']

    auth_header = req.env['HTTP_AUTHORIZATION'].to_s
    return false if auth_header.empty?

    token_string = auth_header.sub(/\ABearer\s+/i, '').strip
    return false if token_string.empty?

    api_token = Tables::ApiToken.find_by_raw_token(token_string)
    api_token && !api_token.expired?
  rescue StandardError
    false
  end
end

use Rack::Attack
use Rack::AbuseMiddleware,
    redis: REDIS,
    limit: 30,
    window: 120,
    block_time: 3600,
    skip_if: authenticated_request

Rack::Attack.cache.store = ActiveSupport::Cache::RedisCacheStore.new(redis: REDIS)

# Rate limit all logged-out requests by IP (mostly to slow down crawlers)
# Note: Rack::Attack runs before Sinatra's session middleware, so we check
# for the session cookie to determine if a user is likely logged in.
Rack::Attack.throttle('req/ip', limit: 60, period: 60) do |req|
  unless req.path.start_with?('/images/', '/js/', '/station/') || req.path.end_with?('.css', '.js', '.png', '.ico')
    req.ip unless authenticated_request.call(req)
  end
end

# Rate limit login endpoints by IP
Rack::Attack.throttle('login/ip', limit: 5, period: 15.minutes) do |req|
  req.ip if (req.path == '/login' || req.path == '/api/auth/login') && req.post?
end

# Rate limit login endpoints by call sign
Rack::Attack.throttle('login/call_sign', limit: 5, period: 15.minutes) do |req|
  if req.post?
    if req.path == '/login'
      req.params['call_sign'].to_s.strip.downcase.presence
    elsif req.path == '/api/auth/login'
      body = req.env['rack.input'].read
      req.env['rack.input'] = StringIO.new(body)
      begin
        JSON.parse(body)['call_sign'].to_s.strip.downcase.presence
      rescue JSON::ParserError
        nil
      end
    end
  end
end

Rack::Attack.throttled_responder = lambda do |request|
  match_data = request.env['rack.attack.match_data'] || {}
  retry_after = (match_data[:period] || 60) - (Time.now.to_i % (match_data[:period] || 60))

  message = 'Too many requests. Please slow down.'

  headers = { 'retry-after' => retry_after.to_s }

  if request.env['HTTP_AUTHORIZATION'] || request.env['HTTP_ACCEPT']&.include?('application/json')
    headers['content-type'] = 'application/json'
    [429, headers, [{ error: message }.to_json]]
  else
    headers['content-type'] = 'text/html'
    [429, headers, ["<html><body><h1>#{message}</h1></body></html>"]]
  end
end

enable :sessions
set :session_secret, ENV.fetch('SESSION_SECRET') { SecureRandom.hex(64) }
set :sessions, same_site: :lax, expire_after: 365 * 24 * 60 * 60 # 1 year

set :static_cache_control, [:public, max_age: 60]

set :bind, '0.0.0.0'

CREATE_NET_REQUIRED_PARAMS = {
  club_id: {},
  net_name: { length: 32, format: /\A[A-Za-z0-9][A-Za-z0-9 \(\)-]*\z/, message: 'Net name must contain only letters, numbers, spaces, parentheses, and/or hyphens, and must start with a letter or number.' },
  net_password: { length: 20 },
  frequency: { length: 16 },
  band: { length: 10 },
  mode: { length: 10 },
  net_control: { length: 20 },
}

if development?
  Dir['./lib/**/*.rb'].each do |path|
    also_reload(path)
  end
end

before do
  is_app_domain = request.host == 'ragchew.app' ||
                  request.host == 'www.ragchew.app' ||
                  params[:domain] == 'ragchew.app'
  if is_app_domain
    if request.path == '/'
      halt erb(:app_landing, layout: false)
    else
      redirect "https://ragchew.site#{request.fullpath}", 302
      return
    end
  end
end

before do
  @user = get_user
  touch_user_activity!(@user) if @user
  if @user
    headers['X-RagChew-User'] = @user.call_sign
    headers['X-RagChew-Role'] = @user.admin? ? 'admin' : 'user'
  end
  @theme = request.env['HTTP_X_RAGCHEW_THEME'] || @user&.theme
  @for_mobile = request.env['HTTP_X_RAGCHEW_UI'] == 'mobile'
end

helpers do
  def nav
    if @user
      links = [
        "<a href='/user'>#{erb "<%== @user.call_sign %>"}</a>",
        "<a href='/favorites'>favorites</a>",
        @user.admin? ? "<a href='/admin'>admin</a>" : nil,
        (!@user.logging_net && !@user.net_creation_blocked?) ? "<a href='/create-net'>create net</a>" : nil,
        "<a href='/logout' data-method='post'>log out</a>"
      ].compact
    else
      links = [
        "<a href='/login'>log in</a>"
      ]
    end
    if @user&.logging_net && @net != @user.logging_net
      links << "logging: <a href='/net/#{url_escape @user.logging_net.name}' class='warning'>#{erb "<%== @user.logging_net.name %>"}</a>"
    end
    erb :_nav, locals: { links: }
  end

  def format_time(ts, time_only: false)
    return '' unless ts

    "<span class='time #{time_only ? 'time-only' : ''}' title='#{distance_of_time_in_words(ts, Time.now)} ago' data-time='#{ts.strftime('%Y-%m-%dT%H:%M:%S.000Z')}'>#{ts.strftime('%Y-%m-%d %H:%M:%S UTC')}</span>"
  end

  def url_escape(s)
    CGI.escape(s.to_s)
  end

  def canonical_net_path(canonical_net)
    "/net/#{url_escape(canonical_net.canonical_name)}"
  end

  def make_url_safe_for_html_attribute(s)
    s.to_s.gsub('"', '%22')
  end

  def make_value_safe_for_html_attribute(s)
    s.to_s.gsub('"', '&#34;')
  end

  def pretty_url(url)
    url.sub(/^https?:\/\//, '').sub(/\/$/, '')
  end

  def development?
    ENV['RACK_ENV'] == 'development'
  end

  def pluralize(word, count)
    if count == 1
      word
    else
      "#{word}s"
    end
  end

  def club_logo_image_tag(club, class_name: nil)
    return unless club&.logo_url.present?

    "<a href=\"/group/#{url_escape(club.name)}\">" \
      "<img class='club-logo #{class_name}'" \
      "src=\"#{make_url_safe_for_html_attribute(club.logo_url)}\"/>" \
      '</a>'
  end

  def is_admin?
    @user&.admin?
  end

  def has_net_logger_role?
    @user&.net_logger?
  end

  def json_for_html_attribute(hash)
    hash.to_json.gsub('&', '&amp;').gsub('"', '&quot;')
  end

  def script_tag(filename)
    ts = File.stat(File.join('public', filename)).mtime.to_i
    "<script type=\"module\" src=\"/#{filename}?_ts=#{ts}\"></script>"
  end

  def style_tag(filename)
    ts = File.stat(File.join('public', filename)).mtime.to_i
    "<link rel=\"stylesheet\" href=\"/#{filename}?_ts=#{ts}\"/>"
  end

  def canonical_name_order_sql(table_name)
    Arel.sql("LOWER(COALESCE(canonical_nets.canonical_name, #{table_name}.name))")
  end

  def pusher_url
    @pusher_url ||= URI.parse(ENV.fetch('PUSHER_URL'))
  end

  def pusher_key = pusher_url.user

  def pusher_cluster
    @pusher_cluster ||= pusher_url.host.split('.').first.split('-').last
  end

  def club_noun
    if @club && @club.full_name.to_s =~ /club/i
      'club'
    else
      'group'
    end
  end

  def hours_in_range(range)
    return to_enum(__method__, range) unless block_given?

    t = range.begin.beginning_of_hour
    while t < range.end
      yield t
      t += 1.hour
    end
  end

  def dates_in_range(range)
    return to_enum(__method__, range) unless block_given?

    t = range.begin.beginning_of_day
    while t < range.end
      yield t
      t = (t + 1.day).beginning_of_day
    end
  end

  def weeks_in_range(range)
    return to_enum(__method__, range) unless block_given?

    t = range.begin.beginning_of_week
    while t < range.end
      yield t
      t = (t + 1.week).beginning_of_week
    end
  end

  def stat_values_by_week(weeks, names)
    names = Array(names)
    records = Tables::Stat.where(name: names, period: weeks).to_a.index_by do |record|
      [record.period, record.name]
    end
    weeks.map do |week|
      period = week.beginning_of_week
      value = nil
      names.each do |name|
        record = records[[period, name]]
        if record
          value = record.value
          break
        end
      end
      value || 0
    end
  end

  def active_user_count(column_name, since:)
    Tables::User.where("#{column_name} > ?", since).count
  end

  def touch_timestamp!(record, column_name, now: Time.now)
    current_value = record.public_send(column_name)
    return if current_value && now - current_value < 20.minutes

    record.update!(column_name => now)
  end

  def touch_user_activity!(user, now: Time.now)
    case request.env['ragchew.auth_type']
    when 'bearer'
      touch_timestamp!(user, :last_mobile_active_at, now:)
    when 'session'
      touch_timestamp!(user, :last_web_active_at, now:)
    end
  end

  def sort_heading(column, label, other_attributes = [])
    query = other_attributes.map do |attr|
      "#{attr}=#{url_escape params[attr]}"
    end.join('&')
    direction = params[:sort].to_s =~ /^#{column}(?! desc)/ ? 'desc' : 'asc'
    if params[:sort].to_s.start_with?(column)
      arrow = direction == 'asc' ? '↑' : '↓'
    end
    "<a href=\"?#{query}&sort=#{column} #{direction}\">#{label}</a> #{arrow}"
  end

  def admin_table_klass(table_name)
    Tables.const_get(table_name.classify)
  rescue NameError
    halt 404, 'table not found'
  end

  def admin_table_attributes_from_params(klass, raw_attributes)
    columns = klass.columns.index_by(&:name)

    raw_attributes.to_h.each_with_object({}) do |(name, raw_value), attrs|
      next unless columns.key?(name)

      column = columns[name]
      value = raw_value
      value = nil if value == '' && ![:string, :text].include?(column.type)
      attrs[name] = klass.type_for_attribute(name).cast(value)
    end
  end
end

include DOTIW::Methods

ENV['TZ'] = 'UTC'

MAX_FAVORITES = 50
BASE_URL = ENV['BASE_URL'] || 'https://ragchew.site'
SUPPORT_EMAIL = ENV['SUPPORT_EMAIL'] || 'tim@timmorgan.org'
ONE_PIXEL_IMAGE = File.read(File.expand_path('./public/images/1x1.png', __dir__))

get '/.well-known/apple-app-site-association' do
  content_type 'application/json'
  '{"webcredentials":{"apps":["U244D4WPSF.org.timmorgan.ragchewapp"]}}'
end

get '/' do
  @homepage = true
  frequency_order_cast = Arel.sql('CAST(frequency AS DOUBLE)')
  band_order_cast = Arel.sql("CAST(REPLACE(REPLACE(band, '70cm', '0'), 'm', '') AS UNSIGNED)")
  order = case params[:order]
          when 'name', nil
            { canonical_name_order_sql('nets') => :asc }
          when 'frequency'
            { frequency_order_cast => :asc }
          when 'mode,frequency'
            { mode: :asc, frequency_order_cast => :asc }
          when 'band,frequency'
            { band_order_cast => :asc, frequency_order_cast => :asc }
          when 'started_at'
            { started_at: :desc }
          end
  service = NetList.new
  @nets = service.list(order:)
  @last_updated_at = Tables::Server.maximum(:net_list_fetched_at)
  @update_interval = 30
  @update_backoff = 5
  @centers = net_centers(@nets)
  erb :index
end

get '/api/user' do
  content_type 'application/json'
  { user: @user }.to_json
end

get '/api/nets' do
  content_type 'application/json'
  service = NetList.new
  nets = service.list(order: { canonical_name_order_sql('nets') => :asc })
  centers = net_centers(nets)
  {
    nets:,
    centers:,
  }.to_json
end

get '/about' do
  erb :about
end

get '/support' do
  @page_title = 'Support'
  erb :support
end

get '/privacy' do
  @page_title = 'Privacy Policy'
  erb :privacy
end

get '/net/:name' do
  params[:name] = CGI.unescape(params[:name])
  @canonical_net = CanonicalNetResolver.resolve(params[:name])
  service = NetInfo.new(name: params[:name])

  service.update!
  @net = service.net
  @canonical_net ||= @net.canonical_net
  @page_title = @canonical_net&.canonical_name || @net.name

  if @user&.monitoring_net == @net
    @user.update!(monitoring_net_last_refreshed_at: Time.now)
  end

  if @user
    @is_logger = @user.logging_net == @net
    @messages = @net.messages.order(:sent_at).to_a
    @monitors = @net.monitors.order(:call_sign).to_a
    @favorites = @user.favorites.pluck(:call_sign)
    @favorited_net = @user.favorite_nets.where(canonical_net_id: @canonical_net&.id).any?
    @blocked_stations = @user.blocked_stations.pluck(:call_sign)
    @net_blocked_stations = @is_logger ? @net.blocked_stations.pluck(:call_sign) : []
    @last_updated_at = @net.fully_updated_at
    @update_interval = @net.update_interval_in_seconds + 1
    erb :net
  else
    @is_logger = false
    @checkin_count = @net.checkins.count
    @message_count = @net.messages.count
    @monitor_count = @net.monitors.count
    erb :net_limited
  end
rescue NetInfo::NotFoundError
  @net_count = Tables::Net.count
  if Tables::BlockedNet.blocked?(params[:name])
    @name = nil
  else
    @canonical_net = CanonicalNetResolver.resolve(params[:name])
    @closed_net = if @canonical_net
                    @canonical_net.representative_closed_net
                  else
                    Tables::ClosedNet.where(name: params[:name]).order(started_at: :desc).first
                  end
    @page_title = @name = @canonical_net&.canonical_name || @closed_net&.name
  end
  if @closed_net
    @canonical_net ||= @closed_net.canonical_net
    @favorited_net = @user.favorite_nets.where(canonical_net_id: @canonical_net&.id).any? if @user
    @checkin_count = @closed_net.checkin_count
    @message_count = @closed_net.message_count
    @monitor_count = @closed_net.monitor_count
    if request.xhr?
      # force JS to reload page
      status 404
      'net is closed'
    else
      erb :closed_net
    end
  else
    status 404
    erb :missing_net
  end
end

get '/api/net_id/:name' do
  content_type 'application/json'

  params[:name] = CGI.unescape(params[:name])
  canonical_net = CanonicalNetResolver.resolve(params[:name])
  if (net = canonical_net&.representative_active_net)
    { id: net.id, canonicalNetId: canonical_net.id }.to_json
  else
    status 404
    if canonical_net && (closed_net = canonical_net.representative_closed_net)
      { error: "net closed", closedNetId: closed_net.id, canonicalNetId: canonical_net.id }.to_json
    else
      { error: "not found" }.to_json
    end
  end
end

get '/api/net/:id/details' do
  content_type 'application/json'

  service = NetInfo.new(id: params[:id])

  service.update!
  net = service.net

  checkins = net.checkins.order(:num).to_a
  coords = checkins.filter_map do |checkin|
    lat, lon = GridSquare.new(checkin.grid_square).to_a
    if lat && lon
      { lat:, lon:, callSign: checkin.call_sign, name: checkin.name }
    end
  end
  messagesCount = net.messages.count
  monitors = net.monitors.order(:call_sign).to_a

  unless @user
    if net.show_circle?
      circle = {
        latitude: net.center_latitude,
        longitude: net.center_longitude,
        radius: net.center_radius
      }
    end
    return {
      net:,
      checkinCount: checkins.size,
      messagesCount:,
      monitorCount: monitors.size,
      circle:
    }.to_json
  end

  monitoring_this_net = @user.monitoring_net == net
  if monitoring_this_net
    @user.update!(monitoring_net_last_refreshed_at: Time.now)
  end

  messages = monitoring_this_net ? net.messages.includes(:message_reactions).order(:sent_at).to_a : []
  messages.reject! { |m| m.blocked? && m.call_sign.upcase != @user.call_sign.upcase }
  favorites = @user.favorites.pluck(:call_sign)
  favorited_net = @user.favorite_nets.where(canonical_net_id: net.canonical_net_id).any?

  {
    net:,
    canonicalNet: net.canonical_net,
    checkins:,
    coords:,
    messages: messages.as_json(include_reactions: true),
    messagesCount:,
    monitors:,
    favorites:,
    favoritedNet: favorited_net,
    lastUpdatedAt: net.updated_at.rfc3339,
    monitoringThisNet: monitoring_this_net,
    timeFormat: @user.time_format,
  }.to_json
rescue NetInfo::NotFoundError
  status 404
  content_type 'application/json'
  { error: 'net not found' }.to_json
end

get '/net/:id/log' do
  require_user!

  service = NetInfo.new(id: params[:id])

  content_type 'text/plain'
  attachment "#{service.net.name}.log"
  service.to_log
rescue NetInfo::NotFoundError
  status 404
  erb :missing_net
end

get '/create-net' do
  require_user!

  if @user.net_creation_blocked?
    status 403
    return "Net creation is unavailable."
  end

  check_if_already_started_a_net!(@user)

  @my_clubs = @user.clubs
  erb :create_net
end

post '/api/create-net' do
  content_type 'application/json'
  payload = params.merge(JSON.parse(request.body.read)).transform_keys(&:to_sym)
  ragchew_only_testing_net = payload[:ragchew_only_testing_net] == true || payload[:ragchew_only_testing_net] == 'true'

  if ragchew_only_testing_net && !is_admin?
    status 401
    return { error: 'not authorized' }.to_json
  end

  require_net_logger_role! unless ragchew_only_testing_net

  if @user.net_creation_blocked?
    status 403
    return { error: "Net creation is unavailable." }.to_json
  end

  check_if_already_started_a_net!(@user)

  missing = CREATE_NET_REQUIRED_PARAMS.keys.reject do |param|
    payload[param].present?
  end

  if missing.any?
    status 400
    return { error: "Some required fields are missing: #{missing.join(', ')}.", fields: missing }.to_json
  end

  club = nil
  if payload[:club_id].present? && payload[:club_id] != 'no_club'
    club = Tables::Club.find(payload[:club_id])
    unless club.club_members.where(user_id: @user.id).any?
      status 400
      return { error: 'You are not a member of this club.' }.to_json
    end
  end

  CREATE_NET_REQUIRED_PARAMS.each do |param, requirements|
    next unless (length = requirements[:length])

    if payload[param].size > length
      status 400
      return { error: "#{param} is too long.", fields: [param] }.to_json
    end
  end

  CREATE_NET_REQUIRED_PARAMS.each do |param, requirements|
    next unless (format = requirements[:format])

    if payload[param] !~ format
      status 400
      return { error: "#{param} contains characters not allowed.", fields: [param] }.to_json
    end
  end

  if Tables::Net.where(name: payload[:net_name]).exists?
    status 400
    return { error: 'A net with this name is already in progress.', fields: [:net_name] }.to_json
  end

  NetInfo.create!(
    ragchew_only_testing_net:,
    club:,
    name: payload[:net_name],
    password: payload[:net_password],
    frequency: payload[:frequency],
    net_control: payload[:net_control],
    user: @user,
    mode: payload[:mode],
    band: payload[:band],
    blocked_stations: payload[:blocked_stations],
  )

  NetInfo.new(name: payload[:net_name]).monitor!(user: @user)

  redirect "/net/#{url_escape payload[:net_name]}"
end

post '/start-logging/:id' do
  require_net_logger_role!

  if @user.logging_net
    halt 401, 'already logging a net'
  end

  net_service = NetInfo.new(id: params[:id])
  @net = net_service.net
  unless @user.can_log_for_club?(@net.club)
    halt 401, 'not authorized'
  end

  net_service = NetInfo.start_logging!(id: @net.id, password: params[:net_password], user: @user)
  redirect "/net/#{url_escape net_service.name}"
rescue NetInfo::PasswordIncorrectError
  halt 401, 'incorrect password'
rescue NetInfo::NotFoundError
  halt 404, 'net not found'
end

post '/stop-logging/:id' do
  require_user!

  @user.update!(logging_net: nil, logging_password: nil)
  net_service = NetInfo.new(id: params[:id])
  redirect "/net/#{url_escape net_service.name}"
rescue NetInfo::NotFoundError
  redirect '/'
end

patch '/api/log/:id/:num' do
  require_net_logger_role!

  @params = params.merge(JSON.parse(request.body.read))

  net_service = NetInfo.new(id: params[:id])
  net_service.update_log_entry!(num: params.fetch(:num).to_i, params:, user: @user)

  content_type 'application/json'
  return { success: true }.to_json
rescue NetInfo::NotAuthorizedError
  halt 401, 'not authorized'
end

delete '/api/log/:id/:num' do
  require_net_logger_role!

  net_service = NetInfo.new(id: params[:id])
  net_service.delete_log_entry!(num: params.fetch(:num).to_i, user: @user)

  content_type 'application/json'
  return { success: true }.to_json
rescue NetInfo::NotAuthorizedError
  halt 401, 'not authorized'
end

patch '/api/highlight/:id/:num' do
  require_net_logger_role!

  net_service = NetInfo.new(id: params[:id])
  requested_num = params.fetch(:num).to_i

  if net_service.current_highlight_num(user: @user) == requested_num
    highlight_num = 0
  else
    highlight_num = requested_num
  end

  net_service.highlight!(num: highlight_num, user: @user)

  content_type 'application/json'
  return { success: true }.to_json
rescue NetInfo::NotAuthorizedError
  halt 401, 'not authorized'
end

post '/close-net/:id' do
  require_net_logger_role!

  net_service = NetInfo.new(id: params[:id])
  net_service.close!(user: @user)

  @user.update!(
    monitoring_net: nil,
    monitoring_net_last_refreshed_at: nil,
    logging_net: nil,
    logging_password: nil,
  )

  redirect '/'
rescue NetInfo::NotAuthorizedError
  halt 401, 'not authorized'
rescue NetInfo::CouldNotCloseError => e
  halt 400, "there was an error closing this net: #{e.message}"
end

get '/closed-nets' do
  params[:days] ||= '1'

  scope = Tables::ClosedNet.left_outer_joins(:canonical_net).includes(:canonical_net)
  if params[:days] != 'all'
    start = params[:days].to_i.days.ago
    if start > Time.new(2000, 1, 1, 0, 0)
      scope = scope.where('started_at > ?', start)
    end
  end

  sort_name, sort_direction = params[:sort].to_s.split(' ', 2)
  sort_name = 'name' unless %w[name frequency band mode started_at].include?(sort_name)
  sort_direction = 'asc' unless %w[asc desc].include?(sort_direction)
  sort = {
    (sort_name == 'name' ? canonical_name_order_sql('closed_nets') : sort_name) => sort_direction
  }
  if sort_name == 'started_at'
    sort[canonical_name_order_sql('closed_nets')] = 'asc'
  else
    sort[:started_at] = 'asc'
  end
  params[:sort] = "#{sort_name} #{sort_direction}"
  scope = scope.order(sort)

  if params[:name].present?
    scope = scope.where('closed_nets.name like :name or frequency like :name', { name: "%#{params[:name].gsub(/%/, '\%')}%" })
  end

  @closed_nets = scope

  @total_days = ((Time.now - Tables::ClosedNet.order(:started_at).first.started_at) / 60 / 60 / 24).ceil
  @total_count = @closed_nets.count
  @closed_nets = @closed_nets.offset(params[:offset])
  @per_page = 100
  @more_pages = @total_count > @per_page
  @closed_nets = @closed_nets.limit(@per_page)
  @blocked_net_names = Tables::BlockedNet.pluck(:name)

  erb :closed_nets
end

get '/api/closed-nets' do
  content_type 'application/json'

  params[:days] ||= '1'

  scope = Tables::ClosedNet.left_outer_joins(:canonical_net).includes(:canonical_net)
  if params[:days] != 'all'
    start = params[:days].to_i.days.ago
    if start > Time.new(2000, 1, 1, 0, 0)
      scope = scope.where('started_at > ?', start)
    end
  end

  sort_name, sort_direction = params[:sort].to_s.split(' ', 2)
  sort_name = 'name' unless %w[name frequency band mode started_at].include?(sort_name)
  sort_direction = 'asc' unless %w[asc desc].include?(sort_direction)
  sort = {
    (sort_name == 'name' ? canonical_name_order_sql('closed_nets') : sort_name) => sort_direction
  }
  if sort_name == 'started_at'
    sort[canonical_name_order_sql('closed_nets')] = 'asc'
  else
    sort[:started_at] = 'asc'
  end
  scope = scope.order(sort)

  if params[:name].present?
    scope = scope.where('closed_nets.name like :name or frequency like :name', { name: "%#{params[:name].gsub(/%/, '\%')}%" })
  end

  total_count = scope.count
  per_page = 100
  scope = scope.offset(params[:offset]).limit(per_page)

  {
    closed_nets: scope,
    total_count:,
    per_page:,
  }.to_json
end

get '/closed-net/:id' do
  set_closed_net_details
  @page_title = @name
  erb :closed_net
rescue ActiveRecord::RecordNotFound
  status 404
  erb :missing_net
end

get '/api/closed-net/:id' do
  set_closed_net_details
  content_type 'application/json'
  {
    net: @closed_net.as_json(include: :club),
    canonicalNet: @canonical_net,
    checkinCount: @checkin_count,
    messageCount: @message_count,
    monitorCount: @monitor_count,
    netCount: @net_count,
    favoritedNet: @favorited_net,
    moreRecentClosedNet: @more_recent_closed_net,
    openNet: @open_net,
  }.to_json
rescue ActiveRecord::RecordNotFound
  status 404
  { error: 'not found' }.to_json
end

get '/groups' do
  @clubs = Tables::Club.order_by_name.pluck(:name, :full_name)

  erb :clubs
end

get '/api/groups' do
  content_type 'application/json'

  clubs = Tables::Club.order_by_name.to_a
  groups = clubs.map do |club|
    {
      id: club.id,
      name: club.name,
      full_name: club.full_name,
      website: club.about_url,
      description: club.description,
      logo_url: club.logo_url,
    }
  end

  groups.to_json
end

get '/api/group/:id' do
  content_type 'application/json'

  club = Tables::Club.find(params[:id])
  nets = club.canonical_nets.includes(:nets, :closed_nets).order(:canonical_name).filter_map do |canonical_net|
    records = canonical_net.nets.to_a + canonical_net.closed_nets.to_a
    next if records.empty?

    record = records.max_by { |net| [net.started_at || Time.at(0), net.id] }
    {
      id: record.id,
      name: canonical_net.canonical_name,
      band: record.band,
      mode: record.mode,
      frequency: record.frequency,
    }
  end

  {
    club: club.as_json.merge(
      slug: club.name,
      website: club.about_url,
    ),
    nets: nets,
  }.to_json
rescue ActiveRecord::RecordNotFound
  status 404
  { error: 'not found' }.to_json
end

get '/suggest-club' do
  if @user
    erb :suggest_club
  else
    erb "<p>Please <a href='/login'>log in</a> first.</p>"
  end
end

post '/suggest-club' do
  require_user!

  Tables::SuggestedClub.create!(
    name: params[:name],
    full_name: params[:full_name],
    website: params[:website],
    description: params[:description],
    nets: params[:nets],
    suggested_by: @user.call_sign
  )

  redirect '/groups?suggested=1'
end

post '/join-group/:id' do
  require_user!

  @club = Tables::Club.find(params[:id])
  @club.club_members.create!(user: @user)

  redirect "/group/#{url_escape @club.name}"
end

post '/leave-group/:id' do
  require_user!

  @club = Tables::Club.find(params[:id])
  @club.club_members.where(user_id: @user.id).delete_all

  if params[:return] == '/user'
    redirect '/user'
  else
    redirect "/group/#{url_escape @club.name}"
  end
end

get '/api/station_search/:query' do
  require_net_logger_role!

  content_type 'application/json'

  unless params[:club_id]
    status 400
    return { 'error' => 'must supply club_id' }.to_json
  end

  if params[:query].size < 2
    status 400
    return [].to_json
  end

  call_signs = Tables::ClubStation
    .joins(:station)
    .where(club_id: params[:club_id])
    .where('club_stations.call_sign like :query or club_stations.preferred_name like :query or stations.first_name like :query or stations.last_name like :query', query: "%#{params[:query]}%")
    .order(updated_at: :desc)
    .limit(15)
    .pluck(:call_sign)
  Tables::Station.where(call_sign: call_signs).to_json
end