# frozen_string_literal: true

# License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
require 'chronic'

module Format
  module Date
    ISORegex = /\d\d\d\d-\d\d-\d\d/.freeze

    def self.parse(str)
      Chronic.parse(str)
    end

    def self.from(str)
      DateTime.strptime(str, '%m/%d/%Y')
    end

    def self.to_readable(date)
      date.strftime("%A, %B #{date.day.ordinalize}")
    end

    def self.full(date, timezone = nil)
      return '' if date.nil?

      date = Chronic.parse(date) if date.is_a?(String)
      date = date.in_time_zone(timezone) if timezone
      date.strftime('%m/%-d/%Y %l:%M%P')
    end

    def self.full_range(date1, date2, timezone = nil)
      return full(date1, timezone) if date2.nil?
      return full(date2, timezone) if date1.nil?
      if simple(date1) == simple(date2)
        return full(date1, timezone) + ' - ' + time(date2, timezone)
      else
        return full(date1, timezone) + ' - ' + full(date2, timezone)
      end
    end

    def self.simple(date, timezone = nil)
      return '' if date.nil?

      date = Chronic.parse(date) if date.is_a?(String)
      date = date.in_time_zone(timezone) if timezone
      date.strftime('%m/%d/%Y')
    end

    def self.time(datetime, timezone = nil)
      return '' if datetime.nil?

      datetime = Chronic.parse(datetime) if datetime.is_a?(String)
      datetime = datetime.in_time_zone(timezone) if timezone
      datetime.strftime('%l:%M%P')
    end

    def self.us_timezones
      # zones=ActiveSupport::TimeZone.us_zones
      zones = ActiveSupport::TimeZone.all
      names = zones.map(&:name)
      vals = zones.map { |t| t.tzinfo.name }
      names.zip(vals).sort_by { |name, _val| name }
    end

    def self.parse_partial_str(str)
      return nil if str.nil?

      Time.new(*str.match(/(\d\d\d\d)-?(\d\d)?-?(\d\d)?/).to_a[1..-1].compact.map(&:to_i))
    end
end; end