<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2026-2036 http://ywxapp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ywxapp<admin@ywxapp.cn>
// +----------------------------------------------------------------------
declare(strict_types=1);

namespace addon\iot\controller\backend;

use think\facade\Db;
use think\facade\View;
use ywxapp\controller\BackendBase;
use addon\iot\service\DeviceService;
use addon\iot\service\DeviceLogService;
use addon\iot\service\SensorConfigService;

/**
 * 智能设备控制器（绑定表，预登记 SN → App 扫码绑定激活）
 */
class Devices extends BackendBase
{
    /**
     * 设备管理页（layui.table 前端拉取）
     */
    public function device()
    {
        return View::fetch('admin/device');
    }

    /**
     * 设备列表（layui.table 分页 JSON，支持关键词过滤）
     */
    public function deviceTable()
    {
        $kw    = trim((string) input('get.kw', ''));
        $page  = max(1, (int) input('get.page', 1));
        $limit = (int) input('get.limit', 20);
        if ($limit < 1 || $limit > 100) {
            $limit = 20;
        }
        $q = Db::name('iot_device');
        if ($kw !== '') {
            $q->where(function ($query) use ($kw) {
                $query->whereLike('sn', "%{$kw}%")
                    ->whereOr('title', 'like', "%{$kw}%")
                    ->whereOr('uuid', 'like', "%{$kw}%");
            });
        }
        $count = (int) (clone $q)->count();
        $rows  = $q->order('id', 'desc')->page($page, $limit)->select()->toArray();
        foreach ($rows as &$d) {
            $d['online'] = DeviceService::isOnline((string) $d['uuid']);
            $d['member_account'] = (int) $d['member_id'] > 0
                ? DeviceService::memberAccount((int) $d['member_id'])
                : '';
            unset($d['secret']);
        }
        unset($d);
        $this->result->success(['list' => $rows, 'count' => $count]);
    }

    /**
     * 登记/编辑设备（华为式：新增=预登记SN，自动生成配对码+激活令牌，绑定激活由设备/App 完成）
     */
    public function saveDevice()
    {
        $id       = (int) input('post.id', 0);
        $sn       = trim((string) input('post.sn', ''));
        $title    = trim((string) input('post.title', ''));
        $model    = trim((string) input('post.model', ''));
        $room     = trim((string) input('post.room', ''));
        $status   = (int) input('post.status', 1);
        $pairCode = trim((string) input('post.pair_code', ''));
        if ($title === '') {
            $this->result->error('设备名称不能为空');
        }
        try {
            if ($id > 0) {
                $update = [
                    'title' => $title, 'model' => $model, 'room' => $room,
                    'status' => $status ? 1 : 0, 'update_at' => time(),
                ];
                if ($pairCode !== '') {
                    $update['pair_code'] = $pairCode;
                }
                Db::name('iot_device')->where('id', $id)->update($update);
            } else {
                $res = DeviceService::register($sn, $title, $model, $room, $pairCode);
                $this->result->success($res, '登记成功');
            }
        } catch (\Throwable $e) {
            $this->result->error('保存失败：' . $e->getMessage());
        }
        $this->result->success('保存成功（预登记设备由设备激活/App 扫码绑定）');
    }

    /**
     * 重置设备密钥（返回新明文，前端展示一次）
     */
    public function resetDeviceSecret()
    {
        $uuid = trim((string) input('post.uuid', ''));
        try {
            $res = DeviceService::resetSecret($uuid);
        } catch (\Throwable $e) {
            $this->result->error($e->getMessage());
        }
        $this->result->success($res);
    }

    /**
     * 重新生成激活令牌（仅未激活设备，按 SN 定位；已激活设备如需换凭证走 resetDeviceSecret）
     */
    public function resetActivateToken()
    {
        $sn = trim((string) input('post.sn', ''));
        try {
            $res = DeviceService::resetActivateToken($sn);
        } catch (\Throwable $e) {
            $this->result->error($e->getMessage());
        }
        $this->result->success($res);
    }

    /**
     * 删除设备（含 MQTT账号/ACL/影子/订阅/离线队列）
     */
    public function deleteDevice()
    {
        $uuid = trim((string) input('post.uuid', ''));
        DeviceService::remove($uuid);
        $this->result->success('已删除（含MQTT账号/ACL/影子/订阅）');
    }

    /**
     * 读取设备传感器配置（配置真源在服务端：后台编辑 → retained 下发设备 + App 共用同一份）
     */
    public function deviceConfig()
    {
        $uuid = trim((string) input('get.uuid', ''));
        if ($uuid === '' || !DeviceService::findByUuid($uuid)) {
            $this->result->error('设备不存在或未激活（未分配 uuid）');
        }
        $cfg         = SensorConfigService::get($uuid);
        $cfg['uuid'] = $uuid;
        $this->result->success($cfg);
    }

    /**
     * 保存设备传感器配置（保存即生效：立即入 retained 下发队列，设备在线秒级生效、离线上线即生效）
     * param: uuid(必填), sensors(JSON 数组：{index,alias,probes,upper,lower,gap,enabled})
     *        位置序号键统一 `index`（旧键 `i` 仍兼容）
     */
    public function saveDeviceConfig()
    {
        $uuid = trim((string) input('post.uuid', ''));
        if ($uuid === '' || !DeviceService::findByUuid($uuid)) {
            $this->result->error('设备不存在或未激活（未分配 uuid）');
        }
        $sensors = input('post.sensors', '');
        if (is_string($sensors)) {
            $sensors = json_decode($sensors, true);
        }
        if (!is_array($sensors)) {
            $this->result->error('sensors 参数须为 JSON 数组');
        }
        try {
            $cfg = SensorConfigService::save($uuid, $sensors);
        } catch (\Throwable $e) {
            $this->result->error($e->getMessage());
        }
        $cfg['uuid'] = $uuid;
        $this->result->success($cfg, '配置已保存并下发（设备离线则上线后自动生效）');
    }

    /**
     * 设备日志（JSON，按设备 uuid 分页）
     */
    public function deviceLogs()
    {
        $uuid = trim((string) input('get.uuid', ''));
        $page = max(1, (int) input('get.page', 1));
        $size = min(100, max(1, (int) input('get.size', 20)));
        $data = $uuid !== '' ? DeviceLogService::page($uuid, $page, $size) : ['list' => [], 'total' => 0];
        $this->result->success($data);
    }
}