<?php

namespace app\admin\controller\service;

use app\common\controller\Backend;
use think\Db;
use Exception;

/**
 * 系统图库管理
 *
 * @icon fa fa-picture-o
 */
class Gallery extends Backend
{
    /**
     * Gallery模型对象
     * @var \app\admin\model\service\Gallery
     */
    protected $model = null;
    protected $relationSearch = true;
    protected $searchFields = 'id,title,service.name,cat.name';

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\service\Gallery;
        $this->view->assign('statusList', $this->model->getStatusList());
    }

    public function index()
    {
        $this->request->filter(['strip_tags', 'trim']);
        if (false === $this->request->isAjax()) {
            $cats = Db::name('service_cat')
                ->where('status', 'normal')
                ->where('id', '<>', 15)
                ->order('weigh desc, id asc')
                ->select();
            $initServiceId = (int)$this->request->get('service_id', 0);
            $initServiceName = $initServiceId > 0 ? (string)Db::name('service')->where('id', $initServiceId)->value('name') : '';
            $this->view->assign([
                'catList'         => $cats,
                'initServiceId'   => $initServiceId,
                'initServiceName' => $initServiceName,
            ]);
            return $this->view->fetch();
        }
        if ($this->request->request('keyField')) {
            return $this->selectpage();
        }
        [$where, $sort, $order, $offset, $limit] = $this->buildparams();
        $list = $this->model
            ->with(['cat', 'service'])
            ->where($where)
            ->order($sort, $order)
            ->paginate($limit);

        return json(['total' => $list->total(), 'rows' => $list->items()]);
    }

    public function add()
    {
        if ($this->request->isPost()) {
            $params = $this->request->post('row/a');
            if (!$params) {
                $this->error(__('Parameter %s can not be empty', ''));
            }
            $params = $this->preExcludeFields($params);
            $serviceId = isset($params['service_id']) ? (int)$params['service_id'] : 0;
            if ($serviceId <= 0) {
                $this->error('请选择所属商品');
            }
            $svc = Db::name('service')->where('id', $serviceId)->find();
            if (!$svc) {
                $this->error('所选商品不存在');
            }
            $catId = (int)$svc['cat_id'];
            $rawImages = isset($params['image']) ? trim((string)$params['image']) : '';
            $imgArr = array_values(array_filter(array_map('trim', explode(',', $rawImages))));
            if (empty($imgArr)) {
                $this->error('请至少上传一张系统参考图');
            }

            $baseTitle = isset($params['title']) ? trim((string)$params['title']) : '';
            $weigh = isset($params['weigh']) ? (int)$params['weigh'] : 100;
            $status = (!empty($params['status']) && in_array($params['status'], ['normal', 'hidden'], true)) ? $params['status'] : 'normal';
            $now = time();

            Db::startTrans();
            try {
                foreach ($imgArr as $idx => $imgUrl) {
                    $itemTitle = $baseTitle !== '' ? $baseTitle : (string)$svc['name'];
                    if (count($imgArr) > 1 && $baseTitle !== '') {
                        $itemTitle = $baseTitle . ' ' . ($idx + 1);
                    }
                    Db::name('system_gallery')->insert([
                        'cat_id'     => $catId,
                        'service_id' => $serviceId,
                        'spec_id'    => 0,
                        'title'      => mb_substr($itemTitle, 0, 80),
                        'image'      => $imgUrl,
                        'weigh'      => max(0, $weigh - $idx),
                        'status'     => $status,
                        'createtime' => $now,
                        'updatetime' => $now,
                    ]);
                }
                Db::commit();
            } catch (Exception $e) {
                Db::rollback();
                $this->error($e->getMessage());
            }
            $this->success();
        }

        $initServiceId = (int)$this->request->get('service_id', 0);
        $initCatId = (int)$this->request->get('cat_id', 0);
        if ($initServiceId > 0 && $initCatId <= 0) {
            $initCatId = (int)Db::name('service')->where('id', $initServiceId)->value('cat_id');
        }
        $this->view->assign([
            'initCatId'     => $initCatId ?: '',
            'initServiceId' => $initServiceId ?: '',
        ]);
        return $this->view->fetch();
    }

    public function edit($ids = null)
    {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        if ($this->request->isPost()) {
            $params = $this->request->post('row/a');
            if (!$params) {
                $this->error(__('Parameter %s can not be empty', ''));
            }
            $params = $this->preExcludeFields($params);
            $serviceId = isset($params['service_id']) ? (int)$params['service_id'] : (int)$row['service_id'];
            if ($serviceId <= 0) {
                $this->error('请选择所属商品');
            }
            $svc = Db::name('service')->where('id', $serviceId)->find();
            if (!$svc) {
                $this->error('所选商品不存在');
            }
            $params['cat_id'] = (int)$svc['cat_id'];
            if (empty($params['title']) || trim((string)$params['title']) === '') {
                $params['title'] = (string)$svc['name'];
            }
            if (empty($params['image']) || trim((string)$params['image']) === '') {
                $this->error('系统参考图不能为空');
            }

            Db::startTrans();
            try {
                $row->allowField(true)->save($params);
                if ((int)$row['spec_id'] > 0) {
                    Db::name('service_spec')
                        ->where('id', (int)$row['spec_id'])
                        ->where('service_id', $serviceId)
                        ->update([
                            'image'      => trim((string)$params['image']),
                            'updatetime' => time(),
                        ]);
                }
                Db::commit();
            } catch (Exception $e) {
                Db::rollback();
                $this->error($e->getMessage());
            }
            $this->success();
        }
        $this->view->assign('row', $row);
        return $this->view->fetch();
    }
}