<?php

namespace App\Http\Controllers;

use App\Http\Requestes\CropRequest;
use App\Http\Resources\CropResource;
use App\Models\Crop;
use App\Models\CropYield;
use Illuminate\Http\Request;
use App\Services\OperationLogService;
use App\Enums\OperationType;

class CropController extends Controller
{
    public function index(Request $request)
    {
        $query = Crop::filter($request->input());
        $list = $query->sort()->get();

        return $this->json(CropResource::collection($list));
    }

    public function store(CropRequest $request)
    {
        $input = $request->input();
        //如果有上级，录入path
        if ($input['parent_id'] ?? 0) {
            $parent = Crop::findOrFail($input['parent_id']);
            $input['path'] = ($parent?->path ?? '').$parent?->id.'-';
        }
        $crop = Crop::create($input);

        (new OperationLogService())->inLog(OperationType::Create, '', $crop, $request->input());

        return $this->success('添加成功');
    }

    public function show(Crop $crop)
    {
        $crop->load('category');
        return $this->json(CropResource::make($crop));
    }

    public function update(Crop $crop, CropRequest $request)
    {
        //如果原本是结点，不允许修改为非节点
        //如果原本非结点，且有子节点，同样无法修改;

        $input = $request->input();
        if ($input['is_end'] != $crop->is_end) {
            if ($crop->is_end || Crop::where(['parent_id' => $crop->id])->exists()) {
                return $this->error('无法修改结点状态');
            }
        }

        //如果有上级，录入path
        if ($input['parent_id'] ?? 0) {
            $parent = Crop::findOrFail($input['parent_id']);
            $input['path'] = ($parent?->path ?? '').$parent?->id.'-';
        }

        $crop->update(array_merge($request->input(), $input));

        (new OperationLogService())->inLog(OperationType::Update, '', $crop, $request->input());

        return $this->success('修改成功');
    }

    public function destroy(Crop $crop)
    {
        //如果有关联数据，无法删除
        if (CropYield::where('crop_id', $crop->id)->exists()) {
            return $this->error('该结点有关联产量数据, 无法删除');
        }
        //如果有子节点，无法删除
        if (Crop::where(['parent_id' => $crop->id])->exists()) {
            return $this->error('该结点有关联产量数据, 无法删除');
        }

        $crop->delete();

        (new OperationLogService())->inLog(OperationType::Delete, '', $crop);

        return $this->success('删除成功');
    }
}