Added HTTP gem

Gemfile

@@ -5,6 +5,7 @@ ruby "3.2.1"
 
 gem "sinatra"
 gem "sinatra-contrib"
+gem "http"
 
 # Use Puma as the app server
 gem "puma", "~> 5.0"

Gemfile.lock

@@ -40,6 +40,7 @@ GEM
       rexml
     debug_inspector (1.1.0)
     diff-lcs (1.5.0)
+    domain_name (0.6.20240107)
     draft_matchers (0.0.2)
       capybara
       color_namer
@@ -51,15 +52,30 @@ GEM
       ruby2_keywords (>= 0.0.4)
     faraday-net_http (3.0.2)
     faraday-retry (1.0.3)
+    ffi (1.16.3)
+    ffi-compiler (1.0.1)
+      ffi (>= 1.0.0)
+      rake
     grade_runner (0.0.9)
       activesupport (>= 2.3.5)
       faraday-retry (~> 1.0.3)
       octokit (~> 5.0)
       oj (~> 3.13.12)
       rake (~> 13)
     hashdiff (1.0.1)
+    http (5.1.1)
+      addressable (~> 2.8)
+      http-cookie (~> 1.0)
+      http-form_data (~> 2.2)
+      llhttp-ffi (~> 0.4.0)
+    http-cookie (1.0.5)
+      domain_name (~> 0.5)
+    http-form_data (2.3.0)
     i18n (1.12.0)
       concurrent-ruby (~> 1.0)
+    llhttp-ffi (0.4.0)
+      ffi-compiler (~> 1.0)
+      rake (~> 13.0)
     matrix (0.4.2)
     method_source (1.0.0)
     mini_mime (1.1.5)
@@ -164,6 +180,7 @@ DEPENDENCIES
   capybara
   draft_matchers
   grade_runner
+  http
   i18n
   pry
   puma (~> 5.0)

README.md

@@ -1,18 +1,66 @@
-# sinatra-template
+# OMNICALC 4
 
-Use this repository to create new Sinatra apps. 
+This app is an extension of the OMNICALC lessons from previous modules.
 
-Optionally, to use `ActiveRecord` for database operations, add to the `app.rb`:
+It features:
 
-```ruby
-require "sinatra/activerecord"
-```
+* Basic and scientific calculators
+
+* GPT Chat
+
+* Hangman and Tic-tac-toe games
+
+Note :
+I wrote this app mostly to see the limitations and strengths of the Ruby language.
+It still needs work in a couple of areas :
+
+ * Some of the code should be refactored.
+
+ * Maybe use a different font, so that the images in the games line up better.
+
+I hope you have as much fun with this app as I had writing it.
+
+# How to use the app :
+
+Basic calculator :
+------------------
+
+You should be able to use this calculator like a normal calculator.
+
+Scientific calculator :
+-----------------------
+
+This can also be used as a normal calculator with an exception:  
+The higher-math functions( exponent, factorial ) calls functions from mathjs api.
+
+Here's the documentation : 
+https://mathjs.org/docs/reference/functions.html
+
+Chat GPT :
+----------
+
+* Ask a question in the text box below the controls and click "SEND".
+
+* Use the up and down arrows to scroll through the answer.
+
+Games ( Hangman ) :
+-------------------
+
+* Click on the letter that you want to guess.
+
+* If the guess is incorrect, a portion of the man will be drawn, if the man is completely drawn, then the game is over.
+
+* If you correctly guess the word, then you win and the game is over.
+
+* Click the "RESET" button for a new game.
+
+Games ( Tic-tac-toe ) :
+-----------------------
+
+* Click any of the yellow buttons below the display, corresponding to the position on the board that you would like to draw your 'X'.
+
+* The computer will automatically move.
+
+* Clicking "RESET" will also reset this game.
 
-And in the `config/environment.rb` file add this code block:
 
-```ruby
-configure do
-  # setup a database connection
-  set(:database, { adapter: "sqlite3", database: "db/development.sqlite3" })
-end
-```