# encoding: UTF-8
#
# Copyright (c) 2010-2017 GoodData Corporation. All rights reserved.
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.

require_relative 'scheduled_mail/dashboard_attachment'
require_relative 'scheduled_mail/report_attachment'

require_relative '../../helpers/global_helpers'

require_relative '../../core/core'
require_relative '../metadata'
require_relative 'metadata'
require_relative 'report'

require 'multi_json'

module GoodData
  class ScheduledMail < GoodData::MdObject
    root_key :scheduledMail

    include GoodData::Mixin::Lockable

    DEFAULT_OPTS = {
      # Meta options
      :title => 'Scheduled report example',
      :summary => 'Daily at 12:00pm PT',
      :tags => '',
      :deprecated => 0,

      # Content When options
      :recurrency => '0:0:0:1*12:0:0',
      :startDate => '2012-06-05',
      :timeZone => 'America/Los_Angeles',

      # Content Email options
      :to => [],
      :bcc => [],
      :subject => 'Scheduled Report',
      :body => "Hey, I'm sending you new Reports and Dashboards!",

      # Attachments
      :attachments => []
    }

    class << self
      # Method intended to get all objects of that type in a specified project
      #
      # @param options [Hash] the options hash
      # @option options [Boolean] :full if passed true the subclass can decide
      # to pull in full objects. This is desirable from the usability POV
      # but unfortunately has negative impact on performance so it is not the
      # default
      # @return [Array<GoodData::MdObject> | Array<Hash>] Return the appropriate metadata objects or their representation
      def all(options = { :client => GoodData.connection, :project => GoodData.project })
        query('scheduledMail', ScheduledMail, options)
      end

      def convert_attachment(item, opts)
        if item.is_a?(GoodData::Dashboard)
          {
            dashboardAttachment: GoodData::DashboardAttachment::DEFAULT_OPTS.merge(opts.merge(:uri => item.uri))
          }
        elsif item.is_a?(GoodData::Report)
          {
            reportAttachment: GoodData::ReportAttachment::DEFAULT_OPTS.merge(opts.merge(:uri => item.uri))
          }
        elsif item.is_a?(GoodData::DashboardAttachment)
          item.json
        elsif item.is_a?(GoodData::ReportAttachment)
          item.json
        elsif item.is_a?(Hash)
          item
        elsif item == 'dashboardAttachment'
          {
            dashboardAttachment: GoodData::DashboardAttachment::DEFAULT_OPTS.merge(opts)
          }
        elsif item == 'reportAttachment'
          {
            reportAttachment: GoodData::ReportAttachment::DEFAULT_OPTS.merge(opts)
          }
        end
      end

      def create(options = { :client => GoodData.connection, :project => GoodData.project })
        client = options[:client]
        fail ArgumentError, 'No :client specified' if client.nil?

        p = options[:project]
        fail ArgumentError, 'No :project specified' if p.nil?

        project = client.projects(p)
        fail ArgumentError, 'Wrong :project specified' if project.nil?

        opts = GoodData::ScheduledMail::DEFAULT_OPTS.merge(GoodData::Helpers.symbolize_keys(options))

        scheduled_mail = {
          :scheduledMail => {
            :meta => {
              :title => opts[:title],
              :summary => opts[:summary],
              :tags => opts[:tags],
              :deprecated => opts[:deprecated]
            },
            :content => {
              :when => {
                :recurrency => opts[:recurrency],
                :startDate => opts[:startDate] || opts[:start_date],
                :timeZone => opts[:timeZone] || opts[:time_zone] || opts[:timezone]
              },
              :to => opts[:to].is_a?(Array) ? opts[:to] : [opts[:to]],
              :bcc => opts[:bcc].is_a?(Array) ? opts[:bcc] : [opts[:bcc]],
              :subject => opts[:subject],
              :body => opts[:body]
            }
          }
        }

        attachments = opts[:attachments].map do |attachment|
          key = attachment.keys.first
          body = attachment[key]

          ScheduledMail.convert_attachment(key, body)
        end

        scheduled_mail[:scheduledMail][:content][:attachments] = attachments

        client.create(ScheduledMail, GoodData::Helpers.stringify_keys(scheduled_mail), :project => project)
      end
    end

    # Add attachment
    #
    # @param [String | Object] item Schedule to add
    # @param [Hash] opts Optional schedule options
    # @return [Array] New list of attachments
    def add_attachment(item, opts)
      attachment = ScheduledMail.convert_attachment(item, opts)
      fail ArgumentError unless attachment

      content['attachments'] << attachment
    end

    # Add attachment and save
    #
    # @param [String | Object] item Schedule to add
    # @param [Hash] opts Optional schedule options
    # @return [Array] New list of attachments
    def add_attachment!(item, opts)
      add_attachment(item, opts)
      save!
    end

    # Get attachments as objects
    #
    # @return [Array<GoodData::DashboardAttachment | GoodData::ReportAttachment>] Array of attachments
    def attachments
      content['attachments'].map do |attachment|
        key = attachment.keys.first

        if key == 'dashboardAttachment'
          GoodData::DashboardAttachment.new(self, attachment)
        elsif key == 'reportAttachment'
          GoodData::ReportAttachment.new(self, attachment)
        else
          RuntimeError "Unsupported attachment type: #{key}"
        end
      end
    end

    # Get body
    #
    # @return [String] Scheduled email body
    def body
      content['body']
    end

    # Set body
    #
    # @param [String] new_body New body to be set
    # @return [String] New body
    def body=(new_body)
      content['body'] = new_body
    end

    # Get recurrency string
    #
    # @return [String] Recurrency (cron) string
    def recurrency
      content['when']['recurrency']
    end

    # Set recurrency
    #
    # @param [String] new_recurrency New recurrency to be set
    # @return [Hash] New recurrency
    def recurrency=(new_recurrency)
      content['when']['recurrency'] = new_recurrency
    end

    # Get start date
    #
    # @return [String] Start date
    def start_date
      content['when']['startDate']
    end

    # Set start date
    #
    # @param [String] new_start_date New start date to be set
    # @return [String] New start date
    def start_date=(new_start_date)
      content['when']['startDate'] = new_start_date
    end

    # Get subject
    #
    # @return [String] Subject of scheduled email
    def subject
      content['subject']
    end

    # Set subject
    #
    # @param [String] new_subject New subject to be set
    # @return [String] New subject
    def subject=(new_subject)
      content['subject'] = new_subject
    end

    # Get timezone
    #
    # @return [String] Timezone
    def timezone
      content['when']['timeZone']
    end

    # Set timezone
    #
    # @param [String] new_timezone New timezone string to be set
    # @return [String] New timezone
    def timezone=(new_timezone)
      content['when']['timeZone'] = new_timezone
    end

    # Get recipients
    #
    # @return [String] Recipients of email
    def to
      content['to']
    end

    # Set recipients
    #
    # @param [String|Array<String>] new_to New recipients to be set
    # @return [Array<String>] New recipient list
    def to=(new_to)
      content['to'] = new_to.is_a?(Array) ? new_to : [new_to]
    end

    # Get 'when' section
    #
    # @return [Hash] 'when' section from json
    def when
      content['when']
    end

    # Set 'when' section
    #
    # @param [Hash] new_when New 'when' section to be set
    # @return [Hash] New 'when' section
    def when=(new_when)
      content['when'] = new_when
    end
  end
end