Implement Custom Exception classes

Author: naingaunglwin-dev

src/Exception/DivisionByZero.php

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+<?php
+
+namespace NAL\TimeTracker\Exception;
+
+use InvalidArgumentException;
+
+class DivisionByZero extends InvalidArgumentException
+{
+    public function __construct()
+    {
+        parent::__construct("Division by zero in unit conversion.");
+    }
+}

src/Exception/InvalidUnitName.php

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+<?php
+
+namespace NAL\TimeTracker\Exception;
+
+use InvalidArgumentException;
+
+class InvalidUnitName extends InvalidArgumentException
+{
+    public function __construct(string $unit)
+    {
+        parent::__construct(
+            empty($unit)
+                ? "The unit name cannot be empty."
+                : "The unit name '{$unit}' is invalid or already exists."
+        );
+    }
+}

src/Exception/TimerNotStarted.php

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+<?php
+
+namespace NAL\TimeTracker\Exception;
+
+use BadMethodCallException;
+
+class TimerNotStarted extends BadMethodCallException
+{
+    public function __construct(string $id)
+    {
+        parent::__construct("The timer with ID '{$id}' has not been started.");
+    }
+}

src/Exception/UnknownUnit.php

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+<?php
+
+namespace NAL\TimeTracker\Exception;
+
+use InvalidArgumentException;
+
+class UnknownUnit extends InvalidArgumentException
+{
+    public function __construct($unit, array $supported)
+    {
+        parent::__construct('Unsupported unit: ' . $unit . '. Use' . implode(', ', array_map(fn ($v) => "'$v'", $supported)) . 'instead.');
+    }
+}

src/Exception/UnsupportedLogic.php

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+<?php
+
+namespace NAL\TimeTracker\Exception;
+
+use LogicException;
+
+class UnsupportedLogic extends LogicException
+{
+    public function __construct(string $message)
+    {
+        parent::__construct($message);
+    }
+}

src/Exception/UnsupportedOperator.php

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+<?php
+
+namespace NAL\TimeTracker\Exception;
+
+class UnsupportedOperator extends UnsupportedLogic
+{
+    public function __construct(string $operator)
+    {
+        parent::__construct("The operator '{$operator}' is unsupported. Supported operators are '+', '-', '*', '/'.");
+    }
+}