# encoding: utf-8
module ApplicationHelper

  # Removes whitespaces from HAML expressions
  # if you add two elements on two lines; the white space creates a space between the elements (in some browsers)
  def one_line_for_html_safe_content(&block)
    haml_concat capture_haml(&block).gsub("\n", '').html_safe
  end

  # Returns a human friendly format of the time stamp
  # Origin: http://snippets.dzone.com/posts/show/6229
  def time_ago(from_time, to_time = Time.now)
    return "" if from_time.nil?

    from_time = from_time.to_time if from_time.respond_to?(:to_time)
    to_time = to_time.to_time if to_time.respond_to?(:to_time)
    distance_in_minutes = (((to_time - from_time).abs)/60).round
    distance_in_seconds = ((to_time - from_time).abs).round
    case distance_in_minutes
      when 0..1           then time = (distance_in_seconds < 60) ? t('timestamps.seconds_ago', :count => distance_in_seconds) : t('timestamps.minute_ago', :count => 1)
      when 2..59          then time = t('timestamps.minutes_ago', :count => distance_in_minutes)
      when 60..90         then time = t('timestamps.hour_ago', :count => 1)
      when 90..1440       then time = t('timestamps.hours_ago', :count => (distance_in_minutes.to_f / 60.0).round)
      when 1440..2160     then time = t('timestamps.day_ago', :count => 1) # 1-1.5 days
      when 2160..2880     then time = t('timestamps.days_ago', :count => (distance_in_minutes.to_f / 1440.0).round) # 1.5-2 days
      #else time = from_time.strftime(t('date.formats.default'))
    end
    if distance_in_minutes > 2880
      distance_in_days = (distance_in_minutes/1440.0).round
      case distance_in_days
        when 0..30    then time = t('timestamps.days_ago', :count => distance_in_days)
        when 31..50   then time = t('timestamps.month_ago', :count => 1)
        when 51..364  then time = t('timestamps.months_ago', :count => (distance_in_days.to_f / 30.0).round)
        else               time = t('timestamps.years_ago', :count => (distance_in_days.to_f / 365.24).round)
      end
    end

    return time
  end

  def translate_time_to(unit, count)
    t("timestamps.time_to.#{unit}", count: count)
  end

  # used to escape strings to URL friendly format
  def self.escape_for_url(str)
     URI.escape(str, Regexp.new("[^-_!~*()a-zA-Z\\d]"))
  end

  # Changes line breaks to <br>-tags and transforms URLs to links
  def text_with_line_breaks_html_safe(&block)
    haml_concat add_p_tags(capture_haml(&block)).html_safe
  end

  # Changes line breaks to <br>-tags and transforms URLs to links
  def text_with_line_breaks(&block)
    haml_concat add_links_and_br_tags(capture_haml(&block)).html_safe
  end

  # Changes line breaks to <br>-tags and transforms URLs to links
  def text_with_line_breaks_for_email(&block)
    haml_concat add_links_and_br_tags_for_email(capture_haml(&block)).html_safe
  end

  def small_avatar_thumb(person, avatar_html_options={})
    avatar_thumb(:thumb, person, avatar_html_options)
  end

  def medium_avatar_thumb(person, avatar_html_options={})
    avatar_thumb(:small, person, avatar_html_options)
  end

  def avatar_thumb(size, person, avatar_html_options={})
    return "" if person.nil?

    image_url = person.image.present? ? person.image.url(size) : missing_avatar(size)

    link_to_unless(person.deleted?, image_tag(image_url, avatar_html_options), person)
  end

  def large_avatar_thumb(person, options={})
    image_url = person.image.present? ? person.image.url(:medium) : missing_avatar(:medium)

    image_tag image_url, { :alt => PersonViewUtils.person_display_name(person, @current_community) }.merge(options)
  end

  def huge_avatar_thumb(person, options={})
    # FIXME! Need a new picture size: :large

    image_url = person.image.present? ? person.image.url(:medium) : missing_avatar(:medium)

    image_tag image_url, { :alt => PersonViewUtils.person_display_name(person, @current_community) }.merge(options)
  end

  def missing_avatar(size = :medium)
    case size.to_sym
    when :small
      image_path("profile_image/small/missing.png")
    when :thumb
      image_path("profile_image/thumb/missing.png")
    else
      # default to medium size
      image_path("profile_image/medium/missing.png")
    end
  end

  def pageless(total_pages, target_id, url=nil, loader_message='Loading more results', current_page = 1)

    opts = {
      :currentPage => current_page,
      :totalPages => total_pages,
      :url        => url,
      :loaderMsg  => loader_message,
      :targetDiv  => target_id # extra parameter for jquery.pageless.js patch
    }

    content_for :extra_javascript do
      javascript_tag("$('#{target_id}').pageless(#{opts.to_json});")
    end
  end

  # Class is selected if conversation type is currently selected
  def get_profile_extras_tab_class(tab_name)
    "inbox_tab_#{controller_name.eql?(tab_name) ? 'selected' : 'unselected'}"
  end

  def available_locales
    locales =
      if @current_community
        @current_community.locales
          .map { |loc| Sharetribe::AVAILABLE_LOCALES.find { |app_loc| app_loc[:ident] == loc } }
      else
        Sharetribe::AVAILABLE_LOCALES
      end

    locales.map { |loc| [loc[:name], loc[:ident]] }
  end

  def self.send_error_notification(message, error_class="Special Error", parameters={})
    if APP_CONFIG.use_airbrake
      Airbrake.notify(
        :error_class      => error_class,
        :error_message    => message,
        :backtrace        => $@,
        :environment_name => ENV['RAILS_ENV'],
        :parameters       => parameters)
    end
    Rails.logger.error "#{error_class}: #{message}"
  end

  # Checks if HTTP_REFERER or HTTP_ORIGIN exists and returns only the domain part with protocol
  # This was first used to return user to original community from login domain.
  # Now the domain is included in the params, so this is used only in error cases to redirect back
  def self.pick_referer_domain_part_from_request(request)
    return request.headers["HTTP_ORIGIN"] if request.headers["HTTP_ORIGIN"].present?
    return request.headers["HTTP_REFERER"][/(^[^\/]*(\/\/)?[^\/]+)/,1] if request.headers["HTTP_REFERER"]
    return ""
  end

  def on_admin?
    controller.class.name.split("::").first=="Admin"
  end

  def facebook_like(recommend=false)
    "<div class=\"fb-like\" data-send=\"true\" data-layout=\"button_count\" data-width=\"200\" data-show-faces=\"false\" #{recommend ? 'data-action="recommend"' : ''}></div>".html_safe
  end

  def self.random_sting(length=6)
    chars = ("a".."z").to_a + ("0".."9").to_a
    random_string = ""
    1.upto(length) { |i| random_string << chars[rand(chars.size-1)] }
    return random_string
  end

  def username_label
    (@current_community && @current_community.label.eql?("okl")) ? t("okl.member_id") : t("common.username")
  end

  def username_or_email_label
    (@current_community && @current_community.label.eql?("okl")) ? t("okl.member_id_or_email") : t("common.username_or_email")
  end

  def service_name
    if @current_community
      service_name = @current_community.name(I18n.locale)
    else
      service_name = APP_CONFIG.global_service_name || "Sharetribe"
    end
    return service_name
  end

  def email_not_accepted_message
    if @current_community && @current_community.allowed_emails.present?
      t("people.new.email_is_in_use_or_not_allowed")
    else
      t("people.new.email_is_in_use")
    end
  end
  # Class methods to access the service_name stored in the thread to work with I18N and DelayedJob etc async stuff.
  def self.store_community_service_name_to_thread(name)
    Thread.current[:current_community_service_name] = name
  end

  def self.store_community_service_name_to_thread_from_community_id(community_id=nil)
    community = nil
    if community_id.present?
      community = Community.find_by_id(community_id)
    end
    store_community_service_name_to_thread_from_community(community)
  end

  def self.store_community_service_name_to_thread_from_community(community=nil)
    ser_name = APP_CONFIG.global_service_name || "Sharetribe"

    # if community has it's own setting, dig it out here
    if community
      # TODO: To make sure that we always show the community name in correct locale,
      # we should pass the right locale instead of using the first locale. An alternative
      # fix would be to stop supporting having community name in multiple locales.
      ser_name = community.name(community.locales.first)
    end

    store_community_service_name_to_thread(ser_name)
  end

  def self.fetch_community_service_name_from_thread
    Thread.current[:current_community_service_name] || APP_CONFIG.global_service_name || "Sharetribe"
  end

  # Helper method for javascript. Return "undefined"
  # if tribe has no location.
  def tribe_latitude
    @current_community.location ? @current_community.location.latitude : "undefined"
  end

  # Helper method for javascript. Return "undefined"
  # if tribe has no location.
  def tribe_longitude
    @current_community.location ? @current_community.location.longitude : "undefined"
  end

  def add_p_tags(text)
    text.gsub(/\n/, "</p><p>")
  end

  def add_links(text)
    pattern = /[\.)]*$/
    text.gsub(/https?:\/\/\S+/) { |link_url| link_to(link_url.gsub(pattern,""), link_url.gsub(pattern,""), class: "truncated-link") + link_url.match(pattern)[0]}
  end

  # general method for making urls as links and line breaks as <br /> tags
  def add_links_and_br_tags(text)
    text = add_links(text)
    lines = ArrayUtils.trim(text.split(/\n/))
    lines.map { |line| "<p>#{line}</p>" }.join
  end

  # general method for making urls as links and line breaks as <br /> tags
  def add_links_and_br_tags_for_email(text)
    pattern = /[\.)]*$/
    text.gsub(/https?:\/\/\S+/) { |link_url| link_to(truncate(link_url.gsub(pattern,""), :length => 50, :omission => "..."), link_url.gsub(pattern,""), :style => "color:#d25427;text-decoration:none;") + link_url.match(pattern)[0]}.gsub(/\n/, "<br />")
  end

  def atom_feed_url(params={})
    url = "#{request.protocol}#{request.host_with_port}/listings.atom?locale=#{I18n.locale}"
    params.each do |key, value|
      url += "&#{key}=#{value}"
    end
    return url
  end

  # About view left hand navigation content
  def about_links
    links = [
      {
        :text => t('layouts.infos.about'),
        :icon_class => icon_class("information"),
        :path => about_infos_path,
        :name => "about"
      }
    ]
    links << {
      :text => t('layouts.infos.how_to_use'),
      :icon_class => icon_class("how_to_use"),
      :path => how_to_use_infos_path,
      :name => "how_to_use"
    }
    links << {
      :text => t('layouts.infos.register_details'),
      :icon_class => icon_class("privacy"),
      :path => privacy_infos_path,
      :name => "privacy"
    }
    links << {
      :text => t('layouts.infos.terms'),
      :icon_class => icon_class("terms"),
      :path => terms_infos_path,
      :name => "terms"
    }
  end

  # rubocop:disable Metrics/MethodLength
  # Admin view left hand navigation content
  def admin_links_for(community)
    links = [
      {
        :topic => :general,
        :text => t("admin.communities.getting_started.getting_started"),
        :icon_class => icon_class("openbook"),
        :path => admin_getting_started_guide_path,
        :name => "getting_started_guide"
      },
      {
        :topic => :general,
        :text => t("admin.left_hand_navigation.support"),
        :icon_class => icon_class("help"),
        :path => "mailto:#{APP_CONFIG.support_email}",
        :name => "support",
        :data_uv_trigger => "contact"
      }
    ]

    if APP_CONFIG.external_plan_service_in_use
      links << {
        :topic => :general,
        :text => t("admin.left_hand_navigation.subscription"),
        :icon_class => icon_class("credit_card"),
        :path => admin_plan_path,
        :name => "plan",
      }
    end

    links << {
      :topic => :general,
      :text => t("admin.left_hand_navigation.preview"),
      :icon_class => icon_class("eye"),
      :path => homepage_without_locale_path(big_cover_photo: true, locale: nil),
      :name => "preview",
    }

    links += [
      {
        :topic => :manage,
        :text => t("admin.communities.manage_members.manage_members"),
        :icon_class => icon_class("community"),
        :path => admin_community_community_memberships_path(@current_community, sort: "join_date", direction: "desc"),
        :name => "manage_members"
      },
      {
        :topic => :manage,
        :text => t("admin.emails.new.send_email_to_members"),
        :icon_class => icon_class("send"),
        :path => new_admin_community_email_path(:community_id => @current_community.id),
        :name => "email_members"
      },
      {
        :topic => :manage,
        :text => t("admin.communities.edit_details.invite_people"),
        :icon_class => "ss-adduser",
        :path => new_invitation_path,
        :name => "invite_people"
      },
      {
        :topic => :manage,
        :text => t("admin.communities.transactions.transactions"),
        :icon_class => icon_class("coins"),
        :path => admin_community_transactions_path(@current_community, sort: "last_activity", direction: "desc"),
        :name => "transactions"
      },
      {
        :topic => :configure,
        :text => t("admin.communities.edit_details.community_details"),
        :icon_class => "ss-page",
        :path => admin_details_edit_path,
        :name => "tribe_details"
      },
      {
        :topic => :configure,
        :text => t("admin.communities.edit_details.community_look_and_feel"),
        :icon_class => "ss-paintroller",
        :path => admin_look_and_feel_edit_path,
        :name => "tribe_look_and_feel"
      },
      {
        :topic => :configure,
        :text => t("admin.communities.new_layout.new_layout"),
        :icon_class => icon_class("layout"),
        :path => admin_new_layout_path,
        :name => "new_layout"
      }
    ]

    links += [
      {
        :topic => :configure,
        :text => t("admin.communities.topbar.topbar"),
        :icon_class => icon_class("topbar_menu"),
        :path => admin_topbar_edit_path,
        :name => "topbar"
      }
    ]

    if APP_CONFIG.show_landing_page_admin
      links << {
        :topic => :configure,
        :text => t("admin.landing_page.landing_page"),
        :icon_class => icon_class("home"),
        :path => admin_landing_page_path,
        :name => "landing_page",
      }
    end

    links += [
      {
        :topic => :configure,
        :text => t("admin.categories.index.listing_categories"),
        :icon_class => icon_class("list"),
        :path => admin_categories_path,
        :name => "listing_categories"
      },
      {
        :topic => :configure,
        :text => t("admin.custom_fields.index.listing_fields"),
        :icon_class => icon_class("form"),
        :path => admin_custom_fields_path,
        :name => "listing_fields"
      }
    ]

    links << {
      :topic => :configure,
      :text => t("admin.listing_shapes.index.listing_shapes"),
      :icon_class => icon_class("order_types"),
      :path => admin_listing_shapes_path,
      :name => "listing_shapes"
    }

    if PaypalHelper.paypal_active?(@current_community.id)
      links << {
        :topic => :configure,
        :text => t("admin.communities.paypal_account.paypal_admin_account"),
        :icon_class => icon_class("payments"),
        :path => admin_paypal_preferences_path(),
        :name => "paypal_account"
      }
    end

    links << {
      :topic => :configure,
      :text => t("admin.communities.social_media.social_media"),
      :icon_class => icon_class("social_media"),
      :path => social_media_admin_community_path(@current_community),
      :name => "social_media"
    }

    links << {
      :topic => :configure,
      :text => t("admin.communities.analytics.analytics"),
      :icon_class => icon_class("analytics"),
      :path => analytics_admin_community_path(@current_community),
      :name => "analytics"
    }

    links << {
      :topic => :configure,
      :text => t("admin.communities.edit_text_instructions.edit_text_instructions"),
      :icon_class => icon_class("edit"),
      :path => edit_text_instructions_admin_community_path(@current_community),
      :name => "text_instructions"
    }
    links << {
      :topic => :configure,
      :text => t("admin.left_hand_navigation.emails_title"),
      :icon_class => icon_class("mail"),
      :path => edit_welcome_email_admin_community_path(@current_community),
      :name => "welcome_email"
    }
    links << {
      :topic => :configure,
      :text => t("admin.communities.settings.settings"),
      :icon_class => icon_class("settings"),
      :path => admin_settings_path,
      :name => "admin_settings"
    }

    links
  end
  # rubocop:enable Metrics/MethodLength

  # Settings view left hand navigation content
  def settings_links_for(person, community=nil)
    links = [
      {
        :id => "settings-tab-profile",
        :text => t("layouts.settings.profile"),
        :icon_class => icon_class("profile"),
        :path => person_settings_path(person),
        :name => "profile"
      },
      {
        :id => "settings-tab-account",
        :text => t("layouts.settings.account"),
        :icon_class => icon_class("account_settings"),
        :path => account_person_settings_path(person) ,
        :name => "account"
      },
      {
        :id => "settings-tab-notifications",
        :text => t("layouts.settings.notifications"),
        :icon_class => icon_class("notification_settings"),
        :path => notifications_person_settings_path(person),
        :name => "notifications"
      }
    ]

    payment_type = MarketplaceService::Community::Query.payment_type(@current_community.id)

    if payment_type.present?

      links << {
        :id => "settings-tab-payments",
        :text => t("layouts.settings.payments"),
        :icon_class => icon_class("payments"),
        :path => paypal_account_settings_payment_path(@current_user),
        :name => "payments"
      }

    end

    return links
  end

  def display_expiration_notice?
    ext_service_active = PlanService::API::Api.plans.active?
    is_admin = Maybe(@current_user).has_admin_rights?.or_else(false)
    is_expired = Maybe(@current_plan)[:expired].or_else(false)

    ext_service_active && is_admin && is_expired
  end

  # returns either "http://" or "https://" based on configuration settings
  def default_protocol
    APP_CONFIG.always_use_ssl ? "https://" : "http://"
  end

  # Return the right notification "badge" size depending
  # on the number of new notifications
  def get_badge_class(count)
    case count
    when 1..9
      ""
    when 10..99
      "big-badge"
    else
      "huge-badge"
    end
  end

  def self.use_s3?
    APP_CONFIG.s3_bucket_name && ApplicationHelper.has_aws_keys?
  end

  def self.use_upload_s3?
    APP_CONFIG.s3_upload_bucket_name && ApplicationHelper.has_aws_keys?
  end

  def self.has_aws_keys?
    APP_CONFIG.aws_access_key_id && APP_CONFIG.aws_secret_access_key
  end

  def facebook_connect_in_use?
    community = Maybe(@current_community)

    (APP_CONFIG.fb_connect_id || community.facebook_connect_id.or_else(false)) &&
     !@facebook_merge &&
     community.facebook_connect_enabled?.or_else(false)
  end

  def community_slogan
    if @community_customization  && !@community_customization.slogan.blank?
      @community_customization.slogan
    else
      if @current_community.slogan && !@current_community.slogan.blank?
        @current_community.slogan
      else
        t("common.default_community_slogan")
      end
    end
  end

  def community_description(truncate=true)
    if @community_customization && !@community_customization.description.blank?
      truncate ? truncate_html(@community_customization.description, length: 140, omission: "...") : @community_customization.description
    elsif @current_community.description && !@current_community.description.blank?
      truncate ? truncate_html(@current_community.description, length: 140, omission: "...") : @current_community.description
    else
      truncate ? truncate_html(t("common.default_community_description"), length: 125, omission: "...") : t("common.default_community_description")
    end
  end

  def email_link_style
    "color:#d96e21; text-decoration: none;"
  end

  def community_blank_slate
    @community_customization && !@community_customization.blank_slate.blank? ? @community_customization.blank_slate : t("homepage.index.no_listings_notification", :add_listing_link => link_to(t("homepage.index.add_listing_link_text"), new_listing_path)).html_safe
  end

  # Return a link to the listing author
  def author_link(listing)
    link_to(PersonViewUtils.person_display_name(listing.author, @current_community),
            listing.author,
            {:title => PersonViewUtils.person_display_name(listing.author, @current_community)})
  end

  def with_invite_link(&block)
    if @current_user && (@current_user.has_admin_rights? || @current_community.users_can_invite_new_users)
      block.call()
    end
  end

  def sort_link_direction(column)
    params[:sort].eql?(column) && params[:direction].eql?("asc") ? "desc" : "asc"
  end

  def search_path(opts = {})
    current_marketplace = request.env[:current_marketplace]
    PathHelpers.search_path(
      community_id: current_marketplace.id,
      logged_in: @current_user.present?,
      locale_param: params[:locale],
      default_locale: current_marketplace.default_locale,
      opts: opts)
  end

  def search_url(opts = {})
    PathHelpers.search_url(
      community_id: @current_community.id,
      opts: opts)
  end

  def search_mode
    FeatureFlagHelper.location_search_available ? MarketplaceService::API::Api.configurations.get(community_id: @current_community.id).data[:main_search] : :keyword
  end

  def landing_page_path
    PathHelpers.landing_page_path(
      community_id: @current_community.id,
      logged_in: @current_user.present?,
      default_locale: @current_community.default_locale,
      locale_param: params[:locale])
  end

  # Give an array of translation keys you need in JavaScript. The keys will be loaded and ready to be used in JS
  # with `ST.t` function
  def js_t(keys, run_js_immediately=false)
    js = javascript_tag("ST.loadTranslations(#{JSTranslations.load(keys).to_json})")
    if run_js_immediately
      js
    else
      content_for :extra_javascript do js end
    end
  end
end