<?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 SettingSpuSpecs extends Form implements LazyRenderable
{
    use LazyWidget;

    /**
     * Handle the form request.
     *
     * @param array $input
     *
     * @return mixed
     */
    public function handle(array $input)
    {
        if ($input) {
            $spuId = $this->payload['spu_id'] ?? 0;
            foreach ($input as $id => $items) {
                $spuSpec = ProductSpuSpec::findOrFail($id);
                $spuSpecsItems = array_column($spuSpec->items, 'name');
                //除去空值
                foreach ($items as $key => $item) {
                    if ($item['name'] === '' || $item['value'] === '') {
                        unset($items[$item]);
                    }
                }
                //如果删除某个属性，需要判断该属性下是否有sku
                $nowSpecsItems = array_column($items, 'name');
                $diffSpecsItems = array_diff($spuSpecsItems, $nowSpecsItems);
                foreach ($diffSpecsItems as $name) {
                    if (ProductSku::where('spu_id', $spuId)->where('specs->'.$id, $name)->exists()) {
                        return $this->response()->error(__('admin_message.forms.setting_spu_specs.errors.has_specs', ['name'=>$name]));
                    }
                }
                ProductSpuSpec::where('id', $id)->update([
                    'items' => $items,
                ]);
            }
        }

        // return $this->response()->error('Your error message.');

        return $this
                ->response()
                ->success(__('admin.update_succeeded'))
                ->refresh();
    }

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

        $spu = ProductSpu::findOrFail($spuId);
        foreach ($spu->specs as $spec) {
            $this->table($spec->id, $spec->name, function ($table) {
                $table->text('name', __('admin_message.forms.setting_spu_specs.table.name'));
                $table->currency('value', __('admin_message.forms.setting_spu_specs.table.value'))->symbol('￥')->default(0);
            })->customFormat(function () use ($spec) {
                return $spec->items;
            });
        }
        $this->disableResetButton();
    }

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