<?php

namespace hd\models\homePageConfig;

use bizHd\homePageConfig\classes\HomePageConfigClass;
use hd\models\BaseForm;

/**
 * 保存首页轮播图配置
 */
class SaveBannerForm extends BaseForm
{
    public $enabled;
    public $interval;
    /** @var array|string */
    public $list;

    public function rules()
    {
        return [
            ['enabled', 'default', 'value' => 0],
            ['interval', 'default', 'value' => 3],
            ['list', 'default', 'value' => []],
            ['enabled', 'filter', 'filter' => function ($value) {
                return !empty($value) ? 1 : 0;
            }],
            ['interval', 'integer', 'min' => 1, 'max' => 60,
                'message' => '轮播间隔时间格式错误',
                'tooSmall' => '轮播间隔时间至少1秒',
                'tooBig' => '轮播间隔时间不能超过60秒',
            ],
            ['list', 'validateList'],
        ];
    }

    public function attributeLabels()
    {
        return [
            'enabled' => '开关',
            'interval' => '轮播间隔',
            'list' => '轮播图列表',
        ];
    }

    public function validateList($attribute)
    {
        $rawList = $this->$attribute;
        if (is_string($rawList)) {
            $decoded = json_decode($rawList, true);
            $rawList = is_array($decoded) ? $decoded : null;
        }
        if (!is_array($rawList)) {
            $this->addError($attribute, '轮播图数据格式错误');
            return;
        }
        if (count($rawList) > HomePageConfigClass::MAX_BANNER_COUNT) {
            $this->addError($attribute, '最多可配置' . HomePageConfigClass::MAX_BANNER_COUNT . '张轮播图');
            return;
        }

        $list = [];
        $types = HomePageConfigClass::getBannerTypes();
        $ossRoot = HomePageConfigClass::BANNER_OSS_ROOT . '/';
        foreach ($rawList as $index => $item) {
            if (!is_array($item)) {
                $this->addError($attribute, '轮播图数据格式错误');
                return;
            }
            $img = isset($item['img']) ? trim(strval($item['img'])) : '';
            $type = isset($item['type']) ? intval($item['type']) : 0;
            $value = isset($item['value']) ? trim(strval($item['value'])) : '';
            $no = $index + 1;
            if ($img === '' && $value === '') {
                continue;
            }
            if ($img === '') {
                $this->addError($attribute, "请上传轮播图{$no}的图片");
                return;
            }
            if ($value === '') {
                $this->addError($attribute, "请完善轮播图{$no}的关联内容");
                return;
            }
            if (!in_array($type, $types, true)) {
                $this->addError($attribute, "轮播图{$no}关联类型无效");
                return;
            }
            if (strpos($img, $ossRoot) !== 0) {
                $this->addError($attribute, "轮播图{$no}图片路径无效");
                return;
            }
            $list[] = [
                'img' => $img,
                'type' => $type,
                'value' => $value,
            ];
        }
        $this->$attribute = $list;
    }

    /**
     * @return array
     */
    public function getPayload()
    {
        return [
            'interval' => intval($this->interval),
            'list' => is_array($this->list) ? $this->list : [],
        ];
    }

    /**
     * @return int
     */
    public function getEnabled()
    {
        return !empty($this->enabled) ? 1 : 0;
    }
}