Add sun constellation changes page

2026-09-01 19:56:46 +02:00
parent 559844bfab
commit 550a6822c9
6 changed files with 321 additions and 2 deletions
@@ -0,0 +1,126 @@
+<?php
+declare(strict_types=1);
+
+session_start();
+require_once __DIR__ . '/python_api.php';
+
+$pageTitle = 'Sonne in Sternbildern - AstroTools';
+$bodyClass = 'sun-constellations-page';
+
+function h(string $value): string
+{
+    return htmlspecialchars($value, ENT_QUOTES, 'UTF-8');
+}
+
+$timezoneName = 'Europe/Berlin';
+$currentYear = (int) (new DateTimeImmutable('now', new DateTimeZone($timezoneName)))->format('Y');
+$selectedYear = filter_input(INPUT_GET, 'year', FILTER_VALIDATE_INT);
+if ($selectedYear === false || $selectedYear === null || $selectedYear < 1600 || $selectedYear > 2200) {
+    $selectedYear = $currentYear;
+}
+
+?>
+<?php require __DIR__ . '/header.php'; ?>
+
+<?php
+$pythonResult = runPythonApi('sun_constellation_changes_for_year', [(string) $selectedYear, $timezoneName]);
+$result = $pythonResult['ok'] ? $pythonResult['data'] : null;
+$intervals = is_array($result['intervals'] ?? null) ? $result['intervals'] : [];
+$events = is_array($result['events'] ?? null) ? $result['events'] : [];
+$displayTimezone = new DateTimeZone($timezoneName);
+$intervalsByStart = [];
+foreach ($intervals as $interval) {
+    $startIso = (string) ($interval['start_local_iso'] ?? '');
+    if ($startIso !== '') {
+        $intervalsByStart[$startIso] = $interval;
+    }
+}
+$astrologicalStarts = [
+    'Steinbock' => [$selectedYear - 1, 12, 22],
+    'Wassermann' => [$selectedYear, 1, 20],
+    'Fische' => [$selectedYear, 2, 19],
+    'Widder' => [$selectedYear, 3, 21],
+    'Stier' => [$selectedYear, 4, 20],
+    'Zwillinge' => [$selectedYear, 5, 21],
+    'Krebs' => [$selectedYear, 6, 21],
+    'Löwe' => [$selectedYear, 7, 23],
+    'Jungfrau' => [$selectedYear, 8, 23],
+    'Waage' => [$selectedYear, 9, 23],
+    'Skorpion' => [$selectedYear, 10, 23],
+    'Schütze' => [$selectedYear, 11, 22],
+];
+?>
+
+<main class="sun-constellations-tool">
+    <section class="card sun-constellations-card">
+        <form class="sun-constellations-form" method="get">
+            <label for="year">Jahr</label>
+            <input id="year" name="year" type="number" min="1600" max="2200" value="<?= h((string) $selectedYear) ?>">
+            <button class="btn btn-primary" type="submit">Berechnen</button>
+        </form>
+        <p class="hint">
+            Berechnet werden die offiziellen IAU-Sternbildgrenzen aus geozentrischer Sicht.
+            Der Jahreszeitraum beginnt am 01.01.<?= h((string) $selectedYear) ?> um 00:00 Uhr in Europe/Berlin.
+            Deshalb erscheint auch der Schlangenträger; der klassische Tierkreis mit zwölf Zeichen ist nicht identisch mit den Sternbildern.
+        </p>
+    </section>
+
+    <?php if ($result === null): ?>
+        <section class="card msg-error">
+            <h2>Berechnung nicht möglich</h2>
+            <p><?= h((string) ($pythonResult['error'] ?? 'Unbekannter Python-Fehler.')) ?></p>
+        </section>
+    <?php else: ?>
+        <section class="card sun-constellations-card">
+            <h2>Astronomisch und astrologisch</h2>
+            <div class="sun-constellations-table-wrap">
+                <table class="data-table sun-constellations-table">
+                    <thead>
+                        <tr>
+                            <th>Sternbild</th>
+                            <th>Wechsel</th>
+                            <th>Astrologisch</th>
+                            <th>Differenz</th>
+                            <th>Von</th>
+                            <th>Bis</th>
+                            <th>Dauer</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                    <?php foreach ($events as $event): ?>
+                        <?php
+                        $constellationName = (string) ($event['to_constellation_name'] ?? '');
+                        $interval = $intervalsByStart[(string) ($event['local_iso'] ?? '')] ?? [];
+                        $astrologicalStart = null;
+                        if (isset($astrologicalStarts[$constellationName])) {
+                            [$astrologicalYear, $astrologicalMonth, $astrologicalDay] = $astrologicalStarts[$constellationName];
+                            $astrologicalStart = new DateTimeImmutable(
+                                sprintf('%04d-%02d-%02d 00:00:00', $astrologicalYear, $astrologicalMonth, $astrologicalDay),
+                                $displayTimezone
+                            );
+                        }
+                        $astronomicalChange = new DateTimeImmutable((string) ($event['local_iso'] ?? ''), $displayTimezone);
+                        $differenceText = '-';
+                        if ($astrologicalStart !== null) {
+                            $differenceDays = ($astronomicalChange->getTimestamp() - $astrologicalStart->getTimestamp()) / 86400;
+                            $differenceText = sprintf('%+.1f Tage', $differenceDays);
+                        }
+                        ?>
+                        <tr>
+                            <td><strong><?= h($constellationName) ?></strong></td>
+                            <td><?= h((string) ($event['local_date'] ?? '')) ?></td>
+                            <td><?= $astrologicalStart === null ? '-' : h($astrologicalStart->format('d.m.Y')) ?></td>
+                            <td><?= h($differenceText) ?></td>
+                            <td><?= h((string) ($interval['start_local_date'] ?? '')) ?>, <?= h((string) ($interval['start_local_time'] ?? '')) ?> Uhr</td>
+                            <td><?= h((string) ($interval['end_local_date'] ?? '')) ?>, <?= h((string) ($interval['end_local_time'] ?? '')) ?> Uhr</td>
+                            <td><?= h(number_format((float) ($interval['duration_days'] ?? 0), 1, ',', '.')) ?> Tage</td>
+                        </tr>
+                    <?php endforeach; ?>
+                    </tbody>
+                </table>
+            </div>
+        </section>
+    <?php endif; ?>
+</main>
+
+<?php require __DIR__ . '/footer.php'; ?>