SENIOR PHP DEVELOPER TASK DESCRIPTION

Solution:

PHP task

3'd Party tools

1. used Composer for auto loading classes
2. used Docker for the php-cli container

Application

1. ##Folder structure

   • app - main directory with the application sources
   • Classes - directory with the application classes
     • Commands - directory with the classes related to the Command Pattern
     • Workers - directory with the classes which do some "job"
   • Interfaces - directory with the interfaces
   • Resources - directory with the language/message files
   • public
     directory for the user/client related files
   • vendor
     composer directory to store packages

2. ##How it works

   public/index.php accept 2 cli parameters:
   a) command - available 2 commands: "thread" and "MCP"
   b) process name - any varchar name

   these 2 parameters transferred to the factory and depending on the command will be executed one of workers:

   thread - execute WorkerLoop which will do 5 loops with the 60 secs pause.
   When WorkerLoop start doing his job it sets the process title with the help of cli_set_process_title php function.

   MCP - execute WorkerCheckStatus which looking for the process by process title with the help of system command pidof and according to the search result shows related message.

3. ##How to test

   • using docker
     • start php_cli container by executing start.sh from the project root
     • then from the public folder execute process script which run index.php though docker container and give it two params - command and process name described above
       examples:
       # ./process thread hello
# ./process MCP hello
   • using pure php
     all you need just run index.php with php cli.
     examples:
     # php index.php thread hello
# php index.php MCP hello

JS task

1. ##How to test

   open in the browser js.html located in the public folder.

2. ##Description

• I decided to create a class for each form element
• used kind of Value object for the form elements' attributes to keep persistence of received data so objects can rely on the data.
• Factory return form elements depending on the JSON t key.
• depending on the JSON number of data sets will be drown appropriate number of buttons
• each dynamically created button assigned action to dynamically generate form elements and fill them with the data depending on JSON data format and values.
• JSON format:
  t - type
  v - value
  if t = radiobutton or checkbox then value not a single string but set of name:checked_flag
0 = not checked
  1 = checked
• if JSON is reliable i suppose that if value is set of data then it is radiobutton or checkbox so im just checking it for the instanceof Object.
  if JSON not reliable i would check every key and value if needed. in the task description not clarified if data is reliable or not.