From 1a457a0860f9157af3011265fc6288abec63dc74 Mon Sep 17 00:00:00 2001
From: mondrake <mondrake.org@gmail.com>
Date: Wed, 8 Jan 2025 21:51:17 +0100
Subject: [PATCH] PelEntryTime is not bijective (#32)

---
 src/PelEntryTime.php   | 26 ++++++++++++++++----------
 test/ReadWriteTest.php | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+), 10 deletions(-)

diff --git a/src/PelEntryTime.php b/src/PelEntryTime.php
index d33b60d2..4ae79c13 100644
--- a/src/PelEntryTime.php
+++ b/src/PelEntryTime.php
@@ -154,12 +154,15 @@ public function getValue(int $type = self::UNIX_TIMESTAMP): string
     public function setValue(mixed $timestamp, int $type = self::UNIX_TIMESTAMP): void
     {
         if ($type === self::UNIX_TIMESTAMP) {
-            if (is_int($timestamp) || is_float($timestamp)) {
-                $this->day_count = (int) $this->convertUnixToJd($timestamp);
-                $this->seconds = $timestamp % 86400;
-            } else {
-                throw new PelInvalidArgumentException('Expected integer value for $type, got %s', gettype($timestamp));
+            if (is_string($timestamp)) {
+                if (is_numeric($timestamp)) {
+                    $timestamp = (int) $timestamp;
+                } else {
+                    throw new PelInvalidArgumentException('Expected numeric value for $type, got "%s"', $timestamp);
+                }
             }
+            $this->day_count = (int) $this->convertUnixToJd($timestamp);
+            $this->seconds = $timestamp % 86400;
         } elseif ($type === self::EXIF_STRING) {
             /*
              * Clean the timestamp: some timestamps are broken other
@@ -179,12 +182,15 @@ public function setValue(mixed $timestamp, int $type = self::UNIX_TIMESTAMP): vo
             $this->day_count = $this->convertGregorianToJd((int) $d[0], (int) $d[1], (int) $d[2]);
             $this->seconds = (int) $d[3] * 3600 + (int) $d[4] * 60 + (int) $d[5];
         } elseif ($type === self::JULIAN_DAY_COUNT) {
-            if (is_int($timestamp) || is_float($timestamp)) {
-                $this->day_count = (int) floor($timestamp);
-                $this->seconds = (int) (86400 * ($timestamp - floor($timestamp)));
-            } else {
-                throw new PelInvalidArgumentException('Expected integer value for $type, got %s', gettype($timestamp));
+            if (is_string($timestamp)) {
+                if (is_numeric($timestamp)) {
+                    $timestamp = (int) $timestamp;
+                } else {
+                    throw new PelInvalidArgumentException('Expected numeric value for $type, got "%s"', $timestamp);
+                }
             }
+            $this->day_count = (int) floor($timestamp);
+            $this->seconds = (int) (86400 * ($timestamp - floor($timestamp)));
         } else {
             throw new PelInvalidArgumentException('Expected UNIX_TIMESTAMP (%d), EXIF_STRING (%d), or JULIAN_DAY_COUNT (%d) for $type, got %d.', self::UNIX_TIMESTAMP, self::EXIF_STRING, self::JULIAN_DAY_COUNT, $type);
         }
diff --git a/test/ReadWriteTest.php b/test/ReadWriteTest.php
index 10ae2c81..5bde6b8e 100644
--- a/test/ReadWriteTest.php
+++ b/test/ReadWriteTest.php
@@ -191,6 +191,38 @@ public static function writeEntryProvider(): \Iterator
         ];
     }
 
+    /**
+     * Tests loading and writing back a JPEG image file.
+     */
+    public function testJpegLoadSave(): void
+    {
+        $file_uri = __DIR__ . '/imagetests/canon-eos-650d.jpg';
+        $jpeg = new PelJpeg($file_uri);
+        $exif = $jpeg->getExif();
+        $this->assertInstanceOf(PelExif::class, $exif);
+        $tiff = $exif->getTiff();
+        $this->assertInstanceOf(PelTiff::class, $tiff);
+        $ifd0 = $tiff->getIfd();
+        $this->assertInstanceOf(PelIfd::class, $ifd0);
+
+        $entry = $ifd0->getEntry(271); // Make
+        $this->assertInstanceOf(PelEntryAscii::class, $entry);
+        $this->assertSame('Canon', $entry->getValue());
+        $entry->setValue('Foo-Bar');
+
+        $out_uri = __DIR__ . '/imagetests/output.canon-eos-650d.jpg';
+        $jpeg->saveFile($out_uri);
+
+        unset($jpeg);
+
+        $data_reload = exif_read_data($out_uri);
+        $this->assertIsArray($data_reload);
+        $this->assertArrayHasKey('Make', $data_reload);
+        $this->assertEquals('Foo-Bar', $data_reload['Make']);
+
+        unlink($out_uri);
+    }
+
     /**
      * Tests loading and writing back a TIFF image file.
      */