Folder reorganize 1

trends/static/get_trend_data.php

@@ -0,0 +1,131 @@
+<?php // phpcs:ignoreFile
+header('Content-Type: application/json');
+header('Cache-Control: no-cache, must-revalidate');
+
+$payload = json_decode(file_get_contents('php://input'), true);
+
+if (!is_array($payload)) {
+    echo json_encode([
+        'success' => false,
+        'error'   => 'Invalid request payload.'
+    ]);
+    exit;
+}
+
+$tags = $payload['tags'] ?? [];
+
+if (!is_array($tags) || count($tags) === 0) {
+    echo json_encode([
+        'success' => false,
+        'error'   => 'At least one tag is required.'
+    ]);
+    exit;
+}
+
+$normalizedTags = [];
+foreach ($tags as $tag) {
+    $trimmed = trim((string) $tag);
+    if ($trimmed === '') {
+        continue;
+    }
+    $normalizedTags[$trimmed] = true;
+}
+
+if (count($normalizedTags) === 0) {
+    echo json_encode([
+        'success' => false,
+        'error'   => 'No valid tag names provided.'
+    ]);
+    exit;
+}
+
+$servername = '192.168.0.13\\SQLEXPRESS';
+$username   = 'opce';
+$password   = 'opcelasuca';
+$dbname     = 'history';
+
+try {
+    $pdo = new PDO(
+        "sqlsrv:Server=$servername;Database=$dbname",
+        $username,
+        $password,
+        [
+            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
+        ]
+    );
+
+    $endTime   = new DateTimeImmutable('now');
+    $startTime = $endTime->modify('-3 hours');
+
+    $series = [];
+
+    $query = $pdo->prepare(
+        'WITH ordered_samples AS (
+            SELECT TOP (7200)
+                a.TimeStamp,
+                a.Value
+            FROM dbo.archive AS a
+            INNER JOIN dbo.id_names AS n
+                ON CAST(n.idnumber AS INT) = a.ID
+            WHERE n.name = :tag_name
+              AND a.TimeStamp BETWEEN :start_time AND :end_time
+            ORDER BY a.TimeStamp DESC
+        )
+        SELECT TimeStamp, Value
+        FROM ordered_samples
+        ORDER BY TimeStamp ASC'
+    );
+
+    foreach (array_keys($normalizedTags) as $tagName) {
+        $query->execute([
+            ':tag_name'   => $tagName,
+            ':start_time' => $startTime->format('Y-m-d H:i:s'),
+            ':end_time'   => $endTime->format('Y-m-d H:i:s')
+        ]);
+
+        $rows = $query->fetchAll();
+        $points = [];
+        $values = [];
+
+        foreach ($rows as $row) {
+            $timestamp = $row['TimeStamp'] ?? null;
+            $value     = isset($row['Value']) ? (float) $row['Value'] : null;
+
+            if ($timestamp === null || $value === null) {
+                continue;
+            }
+
+            $points[] = [
+                'timestamp' => $timestamp,
+                'value'     => $value
+            ];
+            $values[] = $value;
+        }
+
+        $series[] = [
+            'tag'    => $tagName,
+            'points' => $points,
+            'stats'  => [
+                'count'  => count($values),
+                'min'    => count($values) > 0 ? min($values) : null,
+                'max'    => count($values) > 0 ? max($values) : null,
+                'latest' => count($values) > 0 ? end($values) : null
+            ]
+        ];
+    }
+
+    echo json_encode([
+        'success' => true,
+        'series'  => $series,
+        'window'  => [
+            'start' => $startTime->format(DateTimeInterface::ATOM),
+            'end'   => $endTime->format(DateTimeInterface::ATOM)
+        ]
+    ]);
+} catch (Throwable $exception) {
+    echo json_encode([
+        'success' => false,
+        'error'   => $exception->getMessage()
+    ]);
+}