<?php

namespace App\Admin\Forms;

use App\Models\ProductSku;
use App\Models\ProductSpu;
use App\Models\ProductSpuSpec;
use Dcat\Admin\Contracts\LazyRenderable;
use Dcat\Admin\Traits\LazyWidget;
use Dcat\Admin\Widgets\Form;

class AddSku extends Form implements LazyRenderable
{
    use LazyWidget;

    /**
     * Handle the form request.
     *
     * @param array $input
     *
     * @return mixed
     */
    public function handle(array $input)
    {
        if ($input) {
            $spuId = $this->payload['spu_id'] ?? 0;
            $_skuSpecs = [];
            $_price = 0;
            foreach ($input as $id => $value) {
                $spuSpec = ProductSpuSpec::where('id', $id)->first();
                foreach ($spuSpec->items as $item) {
                    if ($item['name'] == $value) {
                        $_skuSpecs[$id] = $item['name'];
                        $_price += $item['value'];
                    }
                }
            }
            //如果存在该规格组合
            $skuQuery = ProductSku::where('spu_id', $spuId);
            foreach ($_skuSpecs as $id=> $spec) {
                $skuQuery->where('specs->'.$id, $spec);
            }
            if ($skuQuery->first()) {
                return $this->response()->error(__('admin_message.forms.add_sku.errors.has_specs'));
            } else {
                $spu = ProductSpu::findOrFail($spuId);
                ProductSku::create([
                    'spu_id'        => $spu->id,
                    'name'          => trim($spu->name.' '.implode(' ', $_skuSpecs)),
                    'subtitle'      => $spu->subtitle,
                    'category_id'   => $spu->category_id,
                    'cover'         => $spu->cover,
                    'images'        => $spu->images,
                    'description'   => $spu->description,
                    'sell_price'    => bcadd($spu->sell_price, $_price),
                    'market_price'  => $spu->market_price,
                    'cost_price'    => $spu->cost_price,
                    'vip_price'     => !is_null($spu->vip_price) ? bcadd($spu->vip_price, $_price) : null,
                    'media'         => $spu->media,
                    'weight'        => $spu->weight,
                    'attrs'         => $spu->attrs,
                    'specs'         => $_skuSpecs,
                    'stock'         => $spu->stock,
                    'sales'         => $spu->sales,
                    'buynote_id'    => $spu->buynote_id,
                ]);
            }
        }
        return $this->response()
                    ->success(__('admin.update_succeeded'))
                    ->refresh();
    }

    /**
     * Build a form here.
     */
    public function form()
    {
        $spuId = $this->payload['spu_id'] ?? 0;

        $spu = ProductSpu::findOrFail($spuId);
        foreach ($spu->specs as $spec) {
            $this->select($spec->id, $spec->name)->options(function () use ($spec) {
                return collect($spec->items)->pluck('name', 'name');
            })->required();
        }
        $this->disableResetButton();
    }

    /**
     * The data of the form.
     *
     * @return array
     */
    public function default()
    {
        return [
            // 'name'  => 'John Doe',
            // 'email' => 'John.Doe@gmail.com',
        ];
    }
}