<?php
/* Copyright (C) 2026 Eduard Wisch <data@data-it-solution.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

/**
 *  \file       netdiag/api/protocols.php
 *  \ingroup    netdiag
 *  \brief      API-Endpunkt: Protokolle lesen (GET ?id=) und synchronisieren
 *              (POST action=sync). Der Sync ist idempotent über client_uuid.
 */

require_once __DIR__.'/netdiag_api.lib.php';

netdiag_api_bootstrap();

/**
 * @var Conf $conf
 * @var DoliDB $db
 * @var Translate $langs
 */

$user = netdiag_api_authenticate($db);

require_once __DIR__.'/../class/netdiagprotocol.class.php';
require_once __DIR__.'/../class/netdiagdevice.class.php';
require_once __DIR__.'/../class/netdiagmeasurement.class.php';

// =========================================================================
// GET: einzelnes Protokoll mit Geräten und Messungen
// =========================================================================
if ($_SERVER['REQUEST_METHOD'] === 'GET') {
	$id = isset($_GET['id']) ? (int) $_GET['id'] : 0;
	if ($id <= 0) {
		netdiag_api_error('Parameter id fehlt', 400);
	}
	$protocol = new NetDiagProtocol($db);
	if ($protocol->fetch($id) <= 0) {
		netdiag_api_error('Protokoll nicht gefunden', 404);
	}

	$devObj = new NetDiagDevice($db);
	$devices = array();
	foreach ($devObj->fetchAllByProtocol($protocol->id) as $d) {
		$devices[] = array(
			'id'         => (int) $d->id,
			'ip'         => $d->ip,
			'mac'        => $d->mac,
			'hostname'   => $d->hostname,
			'vendor'     => $d->vendor,
			'deviceType' => $d->devicetype,
			'note'       => $d->note,
		);
	}
	$measObj = new NetDiagMeasurement($db);
	$measurements = array();
	foreach ($measObj->fetchAllByProtocol($protocol->id) as $m) {
		$measurements[] = array(
			'id'            => (int) $m->id,
			'deviceId'      => $m->fk_device ? (int) $m->fk_device : null,
			'tool'          => $m->tool,
			'category'      => $m->category,
			'label'         => $m->label,
			'params'        => $m->params ? json_decode($m->params, true) : null,
			'result'        => $m->result ? json_decode($m->result, true) : null,
			'measureStatus' => (int) $m->measure_status,
			'dateMeasure'   => $db->jdate($m->date_measure),
		);
	}

	netdiag_api_respond(array(
		'protocol' => array(
			'id'         => (int) $protocol->id,
			'ref'        => $protocol->ref,
			'label'      => $protocol->label,
			'clientUuid' => $protocol->client_uuid,
			'socId'      => $protocol->fk_soc ? (int) $protocol->fk_soc : null,
			'orderId'    => $protocol->fk_commande ? (int) $protocol->fk_commande : null,
			'dateDiag'   => $db->jdate($protocol->date_diag),
			'location'   => $protocol->standort,
			'subnet'     => $protocol->subnet,
			'status'     => (int) $protocol->status,
			'note'       => $protocol->note,
		),
		'devices'      => $devices,
		'measurements' => $measurements,
	));
}

// =========================================================================
// POST: Protokoll synchronisieren (anlegen oder aktualisieren)
// =========================================================================
if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
	netdiag_api_error('Methode nicht erlaubt', 405);
}
if (!$user->hasRight('netdiag', 'protocol', 'write')) {
	netdiag_api_error('Keine Schreibberechtigung', 403);
}

$body = netdiag_api_read_body();
if (($body['action'] ?? '') !== 'sync' || empty($body['protocol']) || !is_array($body['protocol'])) {
	netdiag_api_error('Erwartet: { action: "sync", protocol: {...} }', 400);
}
$p = $body['protocol'];

$uuid = isset($p['clientUuid']) ? trim((string) $p['clientUuid']) : '';
if ($uuid === '') {
	netdiag_api_error('protocol.clientUuid erforderlich', 400);
}

$db->begin();

// Vorhandenes Protokoll über UUID suchen (idempotent)
$protocol = new NetDiagProtocol($db);
$exists = $protocol->fetchByClientUuid($uuid);
if ($exists < 0) {
	$db->rollback();
	netdiag_api_error('Datenbankfehler beim Laden', 500);
}

$protocol->client_uuid       = $uuid;
$protocol->label             = isset($p['label']) ? (string) $p['label'] : '';
$protocol->fk_soc            = !empty($p['socId']) ? (int) $p['socId'] : null;
$protocol->fk_commande       = !empty($p['orderId']) ? (int) $p['orderId'] : null;
$protocol->date_diag         = netdiag_api_timestamp($p['dateDiag'] ?? 0);
$protocol->fk_user_techniker = (int) $user->id;
$protocol->standort          = isset($p['location']) ? (string) $p['location'] : '';
$protocol->subnet            = isset($p['subnet']) ? (string) $p['subnet'] : '';
$protocol->status            = isset($p['status']) ? (int) $p['status'] : NetDiagProtocol::STATUS_DRAFT;
$protocol->note              = isset($p['note']) ? (string) $p['note'] : '';
// tms explizit setzen — die Spalte ist NOT NULL ohne brauchbaren NULL-Default
// (explicit_defaults_for_timestamp=1), createCommon würde sonst NULL einfügen.
$protocol->tms               = dol_now();

if ($exists > 0) {
	$result = $protocol->update($user, 1);
} else {
	$result = $protocol->create($user, 1);
}
if ($result <= 0) {
	$db->rollback();
	netdiag_api_error('Protokoll speichern fehlgeschlagen: '.$protocol->errorsToString(), 500);
}
$protocolId = (int) $protocol->id;

// Alte Geräte und Messungen entfernen (Sync ersetzt komplett)
$db->query("DELETE FROM ".$db->prefix()."netdiag_measurement WHERE fk_protocol = ".$protocolId);
$db->query("DELETE FROM ".$db->prefix()."netdiag_device WHERE fk_protocol = ".$protocolId);

// Geräte einfügen, dabei clientId -> serverRowid merken
$deviceIdMap = array();
$devicesIn = (!empty($p['devices']) && is_array($p['devices'])) ? $p['devices'] : array();
foreach ($devicesIn as $d) {
	$dev = new NetDiagDevice($db);
	$dev->fk_protocol = $protocolId;
	$dev->ip          = isset($d['ip']) ? (string) $d['ip'] : '';
	$dev->mac         = isset($d['mac']) ? (string) $d['mac'] : '';
	$dev->hostname    = isset($d['hostname']) ? (string) $d['hostname'] : '';
	$dev->vendor      = isset($d['vendor']) ? (string) $d['vendor'] : '';
	$dev->devicetype  = isset($d['deviceType']) ? (string) $d['deviceType'] : '';
	$dev->note        = isset($d['note']) ? (string) $d['note'] : '';
	$dev->tms         = dol_now();
	if ($dev->create($user, 1) <= 0) {
		$db->rollback();
		netdiag_api_error('Gerät speichern fehlgeschlagen: '.$dev->errorsToString(), 500);
	}
	if (isset($d['clientId'])) {
		$deviceIdMap[(string) $d['clientId']] = (int) $dev->id;
	}
}

// Messungen einfügen, deviceClientId auf serverRowid abbilden
$measIn = (!empty($p['measurements']) && is_array($p['measurements'])) ? $p['measurements'] : array();
foreach ($measIn as $m) {
	$meas = new NetDiagMeasurement($db);
	$meas->fk_protocol = $protocolId;
	$dcid = isset($m['deviceClientId']) ? (string) $m['deviceClientId'] : '';
	$meas->fk_device     = ($dcid !== '' && isset($deviceIdMap[$dcid])) ? $deviceIdMap[$dcid] : null;
	$meas->tool          = isset($m['tool']) ? (string) $m['tool'] : 'unknown';
	$meas->category      = isset($m['category']) ? (string) $m['category'] : '';
	$meas->label         = isset($m['label']) ? (string) $m['label'] : '';
	$meas->params        = isset($m['params']) ? json_encode($m['params'], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) : null;
	$meas->result        = isset($m['result']) ? json_encode($m['result'], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) : null;
	$meas->measure_status = isset($m['measureStatus']) ? (int) $m['measureStatus'] : 0;
	$meas->date_measure  = netdiag_api_timestamp($m['dateMeasure'] ?? 0);
	$meas->tms           = dol_now();
	if ($meas->create($user, 1) <= 0) {
		$db->rollback();
		netdiag_api_error('Messung speichern fehlgeschlagen: '.$meas->errorsToString(), 500);
	}
}

$db->commit();

// PDF neu erzeugen, wenn das Protokoll abgeschlossen ist
$pdfgenerated = false;
if ($protocol->status == NetDiagProtocol::STATUS_DONE) {
	require_once __DIR__.'/../lib/netdiag_pdf.lib.php';
	$pdfgenerated = (netdiagGeneratePdf($db, $protocol, $langs) > 0);
}

netdiag_api_respond(array(
	'ok'           => true,
	'protocolId'   => $protocolId,
	'ref'          => $protocol->ref,
	'created'      => ($exists == 0),
	'pdfGenerated' => $pdfgenerated,
));