class Api::V1::Issues::DeleteService < ApplicationService
  include ActiveModel::Model

  attr_reader :project, :issue, :current_user

  validates :project, :issue, :current_user, presence: true

  def initialize(project, issue, current_user = nil)
    @project = project 
    @issue = issue
    @current_user = current_user
  end

  def call 
    raise Error, errors.full_messages.join(", ") unless valid? 
    try_lock("Api::V1::Issues::DeleteService:#{project.id}") # 开始写数据，加锁

    delete_issue

    project.incre_project_issue_cache_delete_count

    if Site.has_blockchain? && @project.use_blockchain && !project.id.zero?
      unlock_balance_on_blockchain(@issue.author_id.to_s, @project.id.to_s, @issue.blockchain_token_num.to_i) if @issue.blockchain_token_num.present?
    end

    if Site.has_notice_menu? && !project.id.zero?
      SendTemplateMessageJob.perform_later('IssueDeleted', current_user.id, @issue&.subject, @issue.assigners.pluck(:id), @issue.author_id) 
    end
    
    unlock("Api::V1::Issues::DeleteService:#{project.id}")

    return true
  end

  private

  def delete_issue
    raise Error, "删除疑修失败！" unless issue.destroy!
  end
end