From 1d1b3511e4c523458d78653cb8781a5328600387 Mon Sep 17 00:00:00 2001
From: Szymon Szukalski <szymon@skas.io>
Date: Thu, 24 Oct 2024 11:32:34 +1100
Subject: Implement main executable and CLI

---
 Rakefile           |  5 +++++
 bin/family_tree.rb |  5 +++++
 data/actions.txt   |  3 +++
 lib/cli.rb         | 29 +++++++++++++++++++++++++++++
 4 files changed, 42 insertions(+)
 create mode 100644 bin/family_tree.rb
 create mode 100644 data/actions.txt
 create mode 100644 lib/cli.rb

diff --git a/Rakefile b/Rakefile
index fa8633d..51dcb8a 100644
--- a/Rakefile
+++ b/Rakefile
@@ -3,6 +3,11 @@
 require 'rake'
 require 'rspec/core/rake_task'
 
+desc 'Run the application'
+task :run do
+  sh 'ruby ./bin/family_tree.rb ./data/actions.txt'
+end
+
 RSpec::Core::RakeTask.new(:spec) do |t|
   t.pattern = 'spec/**/*_spec.rb'
 end
diff --git a/bin/family_tree.rb b/bin/family_tree.rb
new file mode 100644
index 0000000..5acc9bb
--- /dev/null
+++ b/bin/family_tree.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+require_relative '../lib/cli'
+
+CLI.new(ARGV).run
diff --git a/data/actions.txt b/data/actions.txt
new file mode 100644
index 0000000..f7e1ff0
--- /dev/null
+++ b/data/actions.txt
@@ -0,0 +1,3 @@
+ADD_CHILD Flora Minerva Female
+GET_RELATIONSHIP Remus Maternal-Aunt
+GET_RELATIONSHIP Minerva Siblings
\ No newline at end of file
diff --git a/lib/cli.rb b/lib/cli.rb
new file mode 100644
index 0000000..f2b185d
--- /dev/null
+++ b/lib/cli.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+class CLI
+  def initialize(args)
+    @args = args
+    validate_arguments
+  end
+
+  def run
+    file_path = @args[0]
+    puts "Running actions from file: #{file_path} against the family tree."
+  end
+
+  private
+
+  def validate_arguments
+    if @args.empty?
+      puts 'Usage: family_tree <path/to/actions.txt>'
+      puts 'Please provide the path to the actions file.'
+      exit 1
+    end
+
+    file_path = @args[0]
+    return if File.exist?(file_path)
+
+    puts "Error: The file '#{file_path}' does not exist."
+    exit 1
+  end
+end
-- 
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