From 1f4d692fb5b3c1831552076cf452e8bdf1e6b90a Mon Sep 17 00:00:00 2001
From: Joshua Ramon Enslin <joshua@museum-digital.de>
Date: Sun, 4 Oct 2020 19:34:17 +0200
Subject: [PATCH] Enable automatic translations of times "before" a given date

---
 src/NodaTimeAutotranslater.php       | 33 +++++++++++++
 tests/NodaTimeAutotranslaterTest.php | 69 ++++++++++++++++++++++++++++
 2 files changed, 102 insertions(+)

diff --git a/src/NodaTimeAutotranslater.php b/src/NodaTimeAutotranslater.php
index 7296961..a31fe41 100644
--- a/src/NodaTimeAutotranslater.php
+++ b/src/NodaTimeAutotranslater.php
@@ -685,6 +685,35 @@ final class NodaTimeAutotranslater {
 
     }
 
+    /**
+     * Translated years or timespans below 1000 CE.
+     *
+     * @param array<integer|string> $timeInfo Time information.
+     *
+     * @return array<string>
+     */
+    public static function translateYearsBeforeEnd(array $timeInfo):array {
+
+        if (empty(trim($timeInfo['zeit_zaehlzeit_monat'], " ,.;0"))) {
+            $timeInfo['zeit_ende'] = strval(intval($timeInfo['zeit_ende']) + 1);
+        }
+        $end = intval($timeInfo['zeit_ende']);
+
+        $innerTimeInfo = $timeInfo;
+        $innerTimeInfo['zeit_beginn'] = $timeInfo['zeit_ende'];
+
+        $output = [];
+        foreach (self::LANGS_BEFORE_START_FORMAT_YEAR as $tLang => $format) {
+
+            $dateAlone = self::getTranslations($innerTimeInfo)[$tLang];
+
+            $timeName = sprintf($format, $dateAlone);
+            $output[$tLang] = $timeName;
+        }
+        return $output;
+
+    }
+
     /**
      * Translated years or timespans below 1000 CE.
      *
@@ -696,6 +725,10 @@ final class NodaTimeAutotranslater {
 
         $end = intval($timeInfo['zeit_ende']);
 
+        if (substr($timeInfo['zeit_name'], 0, 4) === "Vor ") {
+            return self::translateYearsBeforeEnd($timeInfo);
+        }
+
         $innerTimeInfo = $timeInfo;
         $innerTimeInfo['zeit_beginn'] = $timeInfo['zeit_ende'];
 
diff --git a/tests/NodaTimeAutotranslaterTest.php b/tests/NodaTimeAutotranslaterTest.php
index 6619b58..3569e8d 100644
--- a/tests/NodaTimeAutotranslaterTest.php
+++ b/tests/NodaTimeAutotranslaterTest.php
@@ -575,4 +575,73 @@ final class NodaTimeAutotranslaterTest extends TestCase {
 
     }
 
+    /**
+     * Test to check whether the HTML page is correctly generated.
+     *
+     * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+     * @group  ValidOutput
+     *
+     * @return void
+     */
+    public function testCanTranslateBeforeSingleYear():void {
+
+        $timeInfo = [
+            "zeit_name"   => "Vor 1919",
+            "zeit_beginn" => "?",
+            "zeit_ende"   => "1918",
+            "zeit_zaehlzeit_jahr"  => "1919",
+            "zeit_zaehlzeit_monat" => "00",
+            "zeit_zaehlzeit_tag"   => "00",
+        ];
+        $output = NodaTimeAutotranslater::getTranslations($timeInfo);
+        self::assertEquals($output["de"], "Vor 1919");
+
+    }
+
+    /**
+     * Test to check whether the HTML page is correctly generated.
+     *
+     * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+     * @group  ValidOutput
+     *
+     * @return void
+     */
+    public function testCanTranslateBeforeSingleMonth():void {
+
+        $timeInfo = [
+            "zeit_name"   => "Vor Mai 1920",
+            "zeit_beginn" => "?",
+            "zeit_ende"   => "1920",
+            "zeit_zaehlzeit_jahr"  => "1920",
+            "zeit_zaehlzeit_monat" => "05",
+            "zeit_zaehlzeit_tag"   => "00",
+        ];
+        $output = NodaTimeAutotranslater::getTranslations($timeInfo);
+        self::assertEquals($output["de"], "Vor Mai 1920");
+
+    }
+
+    /**
+     * Test to check whether the HTML page is correctly generated.
+     *
+     * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+     * @group  ValidOutput
+     *
+     * @return void
+     */
+    public function testCanTranslateBeforeSingleDay():void {
+
+        $timeInfo = [
+            "zeit_name"   => "Vor 01.12.1919",
+            "zeit_beginn" => "?",
+            "zeit_ende"   => "1919",
+            "zeit_zaehlzeit_jahr"  => "1919",
+            "zeit_zaehlzeit_monat" => "12",
+            "zeit_zaehlzeit_tag"   => "01",
+        ];
+        $output = NodaTimeAutotranslater::getTranslations($timeInfo);
+        self::assertEquals($output["de"], "Vor 01.12.1919");
+
+    }
+
 }