upchieve_chatbot.rb

# frozen_string_literal: true

require "sinatra/base"

class UPchieveChatbot < Sinatra::Base
  post "/deploy" do
    return "Unauthorized" if params[:key] != ENV["SLACK_WEBHOOK_KEY"]

    deploy_channel_id = ENV["SLACK_DEPLOY_CHANNEL_ID"] || "CGTJW6B5G" # tech-chatops channel ID
    unless params[:channel_id] == deploy_channel_id
      return "Deployments must be triggered from channel with ID: #{deploy_channel_id}"
    end

    user_id = params[:user_id]
    environment = params[:command].to_s.scan(/deploy-(.+)/).flatten.first
    args = params[:text].to_s.split
    web = args.select { |arg| arg =~ %r{web/} }.first || "web/master"
    server = args.select { |arg| arg =~ %r{server/} }.first || "server/master"

    web_branch = web.split("/")[1..-1].join("/")
    server_branch = server.split("/")[1..-1].join("/")

    pid = spawn <<-SHELL
      cd ../server
      bin/deploy -s #{server_branch} -w #{web_branch} -u '<@#{user_id}>'
    SHELL

    Process.detach(pid)

    "Initializing deployment of #{web} and #{server} to #{environment}."
  end
end