1 files changed, 87 insertions, 0 deletions
diff --git a/src/Script/Input.php b/src/Script/Input.php
new file mode 100644
index 0000000..6b15c51
--- /dev/null
+++ b/src/Script/Input.php
@@ -0,0 +1,87 @@
+<?php
+
+namespace App\Script;
+
+use Exception;
+
+/**
+ * Input handler for CLI arugments and options
+ */
+class Input
+{
+    /**
+     * Available CLI options
+     * f filename - input file with the vendors data
+     * d day      - delivery day (dd/mm/yy)
+     * t time     - delivery time in 24h format (hh:mm)
+     * l location - delivery location (postcode without spaces, e.g. NW43QB)
+     * c covers   - number of people to feed
+     *
+     * @var string
+     */
+    protected $availableOptions = 'fdtlc::';
+
+    /**
+     * The loaded CLI options
+     *
+     * @var string
+     */
+    protected $options;
+
+    /**
+     * Parse arguments and options
+     *
+     * @author Phil Burton <phil@pgburton.com>
+     */
+    public function __construct()
+    {
+        $this->loadOptions();
+    }
+
+    /**
+     * Load options, make sure required options are set
+     *
+     * @author Phil Burton <phil@pgburton.com>
+     */
+    protected function loadOptions()
+    {
+        $this->options = getopt($this->getOptionString());
+
+        if (!array_key_exists('f', $this->options)) {
+            throw new Exception('Filename Option `-f` is required');
+        }
+
+        // If only a day or a time is given, we throw exception as we need neither or both
+        if ((array_key_exists('d', $this->options) <=> array_key_exists('t', $this->options)) !== 0) {
+            throw new Exception('Both day and time options (`-d` and `-t`) are required for time based filtering');
+        }
+    }
+
+    /**
+     * Return the option string for the options we want to load
+     *
+     * @author Phil Burton <phil@pgburton.com>
+     * @return string
+     */
+    public function getOptionString(): string
+    {
+        return $this->availableOptions;
+    }
+
+    /**
+     * Return an option value
+     * In it doesn't exist return false
+     *
+     * @author Phil Burton <phil@pgburton.com>
+     * @param string $key
+     * @return mixed
+     */
+    public function getOption(string $key)
+    {
+        if (!array_key_exists($key, $this->options)) {
+            return false;
+        }
+
+        return $this->options[$key];
+    }
+}