Andrie
63 lines
1.8 KiB
PHP
63 lines
1.8 KiB
PHP
<?php
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/**
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* api/dashboard/trend.php
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* Hitung tren persen cakupan 6 bulan terakhir.
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* Metode: untuk tiap bulan, query penduduk yang created_at <= akhir bulan itu
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* (kumulatif), lalu hitung % jiwa terjangkau vs total jiwa.
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*/
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require_once '../../config.php';
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require_once '../../auth/helper.php';
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require_once '../../koneksi.php';
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require_auth('administrator');
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header('Content-Type: application/json; charset=utf-8');
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// Build last 6 months (oldest first)
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$months = [];
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for ($i = 5; $i >= 0; $i--) {
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$year = (int) date('Y');
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$month = (int) date('n') - $i;
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while ($month <= 0) { $month += 12; $year--; }
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while ($month > 12) { $month -= 12; $year++; }
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$last_day = date('Y-m-d', mktime(0, 0, 0, $month + 1, 0, $year)); // last day of month
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$month_names = ['Jan','Feb','Mar','Apr','Mei','Jun','Jul','Agt','Sep','Okt','Nov','Des'];
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$months[] = [
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'label' => $month_names[$month - 1] . ' ' . $year,
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'end_dt' => $last_day,
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];
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}
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$rows = [];
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$stmt = $conn->prepare(
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"SELECT
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COALESCE(SUM(jumlah_jiwa), 0) AS total_jiwa,
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COALESCE(SUM(CASE WHEN is_blank_spot = 0 THEN jumlah_jiwa ELSE 0 END), 0) AS jiwa_terjangkau
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FROM penduduk_miskin
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WHERE is_active = 1
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AND deleted_at IS NULL
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AND created_at <= ?"
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);
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foreach ($months as $m) {
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$end = $m['end_dt'];
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$stmt->bind_param('s', $end);
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$stmt->execute();
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$r = $stmt->get_result()->fetch_assoc();
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$total = (int) ($r['total_jiwa'] ?? 0);
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$terjangkau = (int) ($r['jiwa_terjangkau'] ?? 0);
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$pct = $total > 0 ? round($terjangkau / $total * 100, 2) : 0;
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$rows[] = [
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'bulan' => $m['label'],
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'total_jiwa' => $total,
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'jiwa_terjangkau' => $terjangkau,
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'pct_cakupan' => $pct,
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];
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}
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$stmt->close();
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echo json_encode(['status' => 'success', 'data' => $rows]);
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