Lunch Train

This repo contains the code for the Slack demo app Lunch Train: http://www.lunchtrainbot.com/

Lunch Train is a Slack app that helps you schedule and coordinate team social outings like lunch trips.

Code Overview

Landing page

Landing page HTML is in index.php and all the assets are inside these folders: js, img, fonts, font-awesome, CSS

Heroku Configurations

app.json, composer.json and Procfile together define the heroku app configuration.

Libraries

Files inside include directory are various small libraries that are used in Lunch Train

• config.php: Slack app configuration
• db_config.php: Database configuration
• init.php: initial load configuration
• lib_app_installs.php: methods to manage api token storage.
• lib_curl.php: handles http download requests
• lib_db.php: Database management
• lib_message.php: creates message payload for slack messages
• lib_slack.php: methods to post/update messages to slack
• lib_time_parser.php: parse natural language time inside the slash command
• lib_trains.php, lib_train_actions.php:

Database schema

schama.sql contains the lunch train MySQL DB schema.

Command & Action Requests

• Slash command requests are processed by command.php
• Button action requests are processed by action.php
• Slack Events API events are processed by events.php

Setup and Development

1. Create your config file by copying include/config-example.php and renaming it to config.php, and adding your app's credentials.

2. Setup Heroku locally: https://devcenter.heroku.com/articles/getting-started-with-php#set-up

3. Within the LunchTrain clone, run the line heroku git:remote -a lunchtrainbot-staging

4. Install MAMP (apache and MySQL). https://www.mamp.info/en/ and setup database using schema.sql

5. Add LunchTrain folder to your webroot.

6. Add the notification cron job:

   cron_leave_now_2_min_warning is executed every minute to send 2-minute warnings and update the in-channel message that train has left. The cron is executed from dev-sandbox. Following is the cron config.

   * * * * * curl "http://lunchtrainbot-staging.herokuapp.com/cron_leave_now_2_min_warning.php?env=dev"
   * * * * * curl "http://lunchtrainbot.herokuapp.com/cron_leave_now_2_min_warning.php?env=prod"