<?php
// Home Assistant endpoint — entities served from api_cache (refreshed every 5 min by cron)
// Live service calls (turn on/off) still go direct to HA.

function haRequest(string $path, string $method = 'GET', array $payload = []): ?array {
    if (HA_TOKEN === 'YOUR_HA_TOKEN_HERE' || strpos(HA_URL, '10.48.200.X') !== false) {
        return null;
    }
    $ch = curl_init(HA_URL . '/api' . $path);
    $headers = [
        'Authorization: Bearer ' . HA_TOKEN,
        'Content-Type: application/json',
    ];
    curl_setopt_array($ch, [
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_HTTPHEADER     => $headers,
        CURLOPT_TIMEOUT        => 8,
        CURLOPT_CONNECTTIMEOUT => 4,
        CURLOPT_SSL_VERIFYPEER => false,
    ]);
    if ($method === 'POST') {
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
    }
    $resp = curl_exec($ch);
    $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);
    if ($code >= 200 && $code < 300 && $resp) {
        return json_decode($resp, true);
    }
    return null;
}

$configured = !(HA_TOKEN === 'YOUR_HA_TOKEN_HERE' || strpos(HA_URL, '10.48.200.X') !== false);

if (!$configured) {
    echo json_encode(['configured' => false, 'message' => 'HA token not configured.', 'entities' => []]);
    exit;
}

// Scene list
if ($method === 'GET' && $action === 'scenes') {
    $states = haRequest('/states') ?? [];
    $scenes = [];
    foreach ($states as $s) {
        if (str_starts_with($s['entity_id'] ?? '', 'scene.')) {
            $scenes[] = [
                'entity_id' => $s['entity_id'],
                'name'      => $s['attributes']['friendly_name'] ?? $s['entity_id'],
            ];
        }
    }
    echo json_encode(['scenes' => $scenes]);
    exit;
}

// Scene activate
if ($method === 'POST' && $action === 'scene_activate') {
    $entity_id = $data['entity_id'] ?? '';
    if ($entity_id && str_starts_with($entity_id, 'scene.')) {
        $result = haRequest('/services/scene/turn_on', 'POST', ['entity_id' => $entity_id]);
        echo json_encode(['success' => true, 'entity_id' => $entity_id]);
    } else {
        echo json_encode(['error' => 'Invalid scene entity_id']);
    }
    exit;
}

// Live service call (toggle device) — always direct to HA, never cached
if ($method === 'POST' && $action === 'service') {
    $domain    = $data['domain']    ?? '';
    $service   = $data['service']   ?? '';
    $entity_id = $data['entity_id'] ?? '';
    if ($domain && $service && $entity_id) {
        $result = haRequest("/services/{$domain}/{$service}", 'POST', ['entity_id' => $entity_id]);
        echo json_encode(['success' => true, 'result' => $result]);
    } else {
        echo json_encode(['error' => 'Missing domain/service/entity_id']);
    }
    exit;
}

// Serve entities from ha_entities table (real-time agent push data)
$skipDomains = ['sensor','binary_sensor','button','update','select','number',
                'device_tracker','event','image','person','zone','tts','conversation',
                'assist_satellite','input_button','media_player','scene','water_heater',
                'alarm_control_panel','automation','script','calendar','notify','weather','camera','siren','remote','todo','lawn_mower'];
$skipKeywords = [
    // HACS / system toggles
    'pre_release','get_hacs','matter_server','zerotier','mariadb',
    'spotify_connect','file_editor','ssh_web','uptime_kuma','adguard_',
    'folding_home','music_assistant','mealie','mosquitto','social_to',
    'assist_microphone','cec_scanner','esphome_device_builder',
    // Camera controls
    '_record','_ftp_','_push_','_hub_ringtone','_siren_on',
    '_email_on','_manual_record','_infrared_','motion_detection',
    'front_yard_record','down_hill_record','camera1_record',
    'back_yard_record','nvr_',
    // Echo / smart display noise
    'do_not_disturb',
    // Konnected security panel switches
    'floodlight',
    'konnected',
    // Energy / power monitoring (sensors, not controls)
    '_energy','_power','_voltage','_current','_consumption',
    'electricity_maps',
];

$rows = JarvisDB::query(
    "SELECT entity_id, entity_name, domain, state, UNIX_TIMESTAMP(updated_at) as updated_ts
     FROM ha_entities
     WHERE state NOT IN ('unavailable','unknown')
     ORDER BY domain, entity_name"
) ?? [];

$grouped = [];
$latestTs = 0;
foreach ($rows as $e) {
    $dom = $e['domain'];
    if (in_array($dom, $skipDomains)) continue;
    $skip = false;
    if ($dom === 'switch') {
        foreach ($skipKeywords as $kw) {
            if (strpos($e['entity_id'], $kw) !== false) { $skip = true; break; }
        }
    }
    if ($skip) continue;
    if ((int)$e['updated_ts'] > $latestTs) $latestTs = (int)$e['updated_ts'];
    $grouped[$dom][] = [
        'entity_id' => $e['entity_id'],
        'name'      => $e['entity_name'],
        'state'     => $e['state'],
    ];
}

echo json_encode([
    'configured'  => true,
    'entities'    => $grouped,
    'cache_age_s' => $latestTs > 0 ? (int)(time() - $latestTs) : -1,
    'cached_at'   => $latestTs > 0 ? date('c', $latestTs) : null,
]);