# frozen_string_literal: true

module Emails
  module Members
    extend ActiveSupport::Concern
    include MembersHelper

    included do
      helper_method :member_source, :member
    end

    def member_access_requested_email(member_source_type, member_id, recipient_id)
      @member_source_type = member_source_type
      @member_id = member_id

      user = User.find(recipient_id)

      member_email_with_layout(
        to: user.notification_email_for(notification_group),
        subject: subject("Request to join the #{member_source.human_name} #{member_source.model_name.singular}"))
    end

    def member_access_granted_email(member_source_type, member_id)
      @member_source_type = member_source_type
      @member_id = member_id

      member_email_with_layout(
        to: member.user.notification_email_for(notification_group),
        subject: subject("Access to the #{member_source.human_name} #{member_source.model_name.singular} was granted"))
    end

    def member_access_denied_email(member_source_type, source_id, user_id)
      @member_source_type = member_source_type
      @member_source = member_source_class.find(source_id)

      user = User.find(user_id)

      member_email_with_layout(
        to: user.notification_email_for(notification_group),
        subject: subject("Access to the #{member_source.human_name} #{member_source.model_name.singular} was denied"))
    end

    def member_invited_email(member_source_type, member_id, token)
      @member_source_type = member_source_type
      @member_id = member_id
      @token = token

      member_email_with_layout(
        to: member.invite_email,
        subject: subject("Invitation to join the #{member_source.human_name} #{member_source.model_name.singular}"))
    end

    def member_invite_accepted_email(member_source_type, member_id)
      @member_source_type = member_source_type
      @member_id = member_id
      return unless member.created_by

      member_email_with_layout(
        to: member.created_by.notification_email_for(notification_group),
        subject: subject('Invitation accepted'))
    end

    def member_invite_declined_email(member_source_type, source_id, invite_email, created_by_id)
      return unless created_by_id

      @member_source_type = member_source_type
      @member_source = member_source_class.find(source_id)
      @invite_email = invite_email

      user = User.find(created_by_id)

      member_email_with_layout(
        to: user.notification_email_for(notification_group),
        subject: subject('Invitation declined'))
    end

    def member
      @member ||= Member.find(@member_id)
    end

    def member_source
      @member_source ||= member.source
    end

    def notification_group
      @member_source_type.casecmp?('project') ? member_source.group : member_source
    end

    private

    def member_source_class
      @member_source_type.classify.constantize
    end

    def member_email_with_layout(to:, subject:)
      mail(to: to, subject: subject) do |format|
        format.html { render layout: 'mailer' }
        format.text { render layout: 'mailer' }
      end
    end
  end
end