class CalendarsController < ApplicationController
  # GET /events
  # GET /events.json
  include ActionView::Helpers::AssetTagHelper
  def index
    page = Page.where(page_id: OrbitHelper.params[:page_id]).first
    style_file = page.layout=='index3' ? '/assets/calendar_widget2' : '/assets/calendar_widget1'
    cat_ids = page.categories
    if cat_ids.include?('all')
      cat_ids = []
    end
    @calendar_types = cat_ids.blank? ? CalendarType.all : CalendarType.where(:id.in => cat_ids)
    @calendar_setting = CalendarSetting.first
    {
      "modes_info" => @calendar_setting.get_modes_info.map.with_index{|(trans, mode),i| {trans: trans, mode: mode, active_class: (i ==
 2 ? 'active' : '')}},
      "week_title" => @calendar_setting.week_title.map{|t| {'week_title'=> t}}.rotate(@calendar_setting.sunday_first ? 0 : 1),
      "extras" => {
        "page_id" => OrbitHelper.params[:page_id],
        'widget_title' => page.name,
        'widget_title_class' => page.name.blank? ? 'center' : '',
        'calendar_title' => get_calendar_title,
        'style_tag' => stylesheet_link_tag(style_file),
        'default_column' => widget_default_column
      }
    }
  end

  def show
    params = OrbitHelper.params
    event = Event.find(params[:uid])
    {
      "page_id" => params[:page_id],
      "event_date" => event.start.strftime("%Y-%m-%d")
    }
  end

  def widget
    part = OrbitHelper.get_current_widget
    @calendar_setting = CalendarSetting.first
    cat_ids = part.custom_array_field
    @calendar_types = cat_ids.blank? ? CalendarType.all : CalendarType.where(:id.in => cat_ids)
    extra_before_html = render_to_string(partial: 'calendars/calendar_variable', locals: {:@calendar_setting=>@calendar_setting,:@calendar_types=>@calendar_types})
    {
      "modes_info" => @calendar_setting.get_modes_info.map.with_index{|(trans, mode),i| {trans: trans, mode: mode, active_class: (i ==
 2 ? 'active' : '')}},
      "week_title" => @calendar_setting.week_title.map{|t| {'week_title'=> t}}.rotate(@calendar_setting.sunday_first ? 0 : 1),
      "extras" => {
        "subpart-id" => part.id.to_s,
        "more_url" => OrbitHelper.widget_more_url,
        'widget_title' => part.title,
        'widget_title_class' => part.title.blank? ? 'center' : '',
        'calendar_title' => get_calendar_title,
        'default_column' => widget_default_column,
        'extra_before_html' => extra_before_html
      }
    }
  end

  def events
    if !(valid_timestamp?(params[:start]) && valid_timestamp?(params[:end]))
      return render json: {}, status: :unprocessable_entity
    end
    page = Page.find_by(:page_id => params[:page_id]) rescue nil
    events =[]
    locale = params[:locale]||I18n.locale
    locale = 'zh_tw' if locale == 'zh_cn'
    if !page.nil?
      calendar_types = page.categories
      if calendar_types.include?('all')
        calendar_types = []
      end
      tags = page.tags
      if tags.include?('all')
        tags = []
      end
      if params[:start].present? && params[:end].present?
        sdt = Time.at(params[:start].to_i).utc
        edt = Time.at(params[:end].to_i).utc
        events = Event.with_categories(calendar_types).with_tags(tags).where("title_translations.#{locale}".to_sym.ne=>"").agenda_events(sdt,edt)
     end
    end
    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: events.to_json }
    end
  end


  def index_agenda
    if !(valid_timestamp?(params[:unix_start]) && valid_timestamp?(params[:unix_end]))
      return render json: {}, status: :unprocessable_entity
    end
    locale = params[:locale]||I18n.locale
    locale = 'zh_tw' if locale == 'zh_cn'
    I18n.with_locale(locale) do
      if !params[:subpart_id].nil?
        subpartid = params[:subpart_id]
        page = Page.where(page_id: subpartid).first
        calendar_types = page.categories rescue []
        if calendar_types.include?('all')
          calendar_types = []
        end
        tags = page.tags rescue []
        if tags.include?('all')
          tags = []
        end
      else
        calendar_types = []
        tags = []
      end
      if params[:unix_start].present? && params[:unix_end].present?
        agenda_start = Time.at(params[:unix_start].to_i).utc
        agenda_end = Time.at(params[:unix_end].to_i).utc
        event = Event.where("title_translations.#{locale}".to_sym.ne=>"")
        events = event.with_categories(calendar_types).with_tags(tags).agenda_events(agenda_start,agenda_end).sort_by{|e| e[:start]}
      end
      render json: {"events" => events,"calendar_title"=>get_calendar_title(params[:month_start] ? Time.at(params[:month_start].to_i).utc : Time.at(params[:unix_start].to_i))}.to_json({"frontend" => true})
    end
  end

  def agenda
    if !(valid_timestamp?(params[:unix_start]) && valid_timestamp?(params[:unix_end]))
      return render json: {}, status: :unprocessable_entity
    end
    locale = params[:locale]||I18n.locale
    locale = 'zh_tw' if locale == 'zh_cn'
    I18n.with_locale(locale) do
      if !params[:subpart_id].nil?
        subpartid = params[:subpart_id]
        widget = SubPart.find(subpartid)
        calendar_types = widget.custom_array_field
        tags = widget.tags
        if tags.include?('all')
          tags = []
        end
      else
        calendar_types = []
        tags = []
      end

      if params[:unix_start].present? && params[:unix_end].present?
        agenda_start = Time.at(params[:unix_start].to_i).utc
        agenda_end = Time.at(params[:unix_end].to_i).utc
        event = Event.where("title_translations.#{locale}".to_sym.ne=>"")
        events = event.with_categories(calendar_types).with_tags(tags).agenda_events(agenda_start,agenda_end).sort_by{|e| e[:start]}
      end
      render json: {"events" => events,"calendar_title"=>get_calendar_title(params[:month_start] ? Time.at(params[:month_start].to_i).utc : Time.at(params[:unix_start].to_i))}.to_json({"frontend" => true})
    end
  end
  def get_calendar_title(now_date=nil)
    now_date = Time.now.utc if now_date.nil?
    month_name = I18n.locale.to_s=='zh_tw' ? now_date.month : I18n.t("calendar.month_name.#{now_date.month}")
    I18n.t("calendar.calendar_title",year: now_date.year,month: month_name)
  end
  def widget_default_column
      (1..5).collect do |i|
        "<tr>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
            <td></td>
        </tr>"
      end.join("\n")
  end

  private
  def valid_timestamp?(number)
    begin
      # Ensure the input is numeric and within a practical range
      number = Integer(number) rescue Float(number)
      min_timestamp = Time.new(1900, 1, 1).to_i
      max_timestamp = Time.new(3000, 12, 31).to_i
      number >= min_timestamp && number <= max_timestamp
    rescue ArgumentError, TypeError
      false
    end
  end
end