<?php

namespace app\admin\service;

use app\admin\validate\SysDictValidate;
use app\common\traits\crud\CrudServiceTrait;
use app\common\model\SysDict;
use app\common\model\SysDictCategory;
use app\common\utils\translation\service\TranslationService;
use app\queue\utils\Translat;
use support\Request;

class SysDictService
{

    use CrudServiceTrait;

    /**
     * 指定当前要操作的模型
     */
    protected string $modelClass = SysDict::class;

    /**
     * 验证器
     */
    protected $validator = SysDictValidate::class;

    /**
     * 获取验证器
     */
    public function getValidator()
    {
        return  new $this->validator;
    }


    /**
     * 构建查询条件
     */
    protected function buildQueryConfig(Request $request, string $scene = 'index'): array
    {
        $p = $request->all();

        $config = [];
        $config['model'] = $this->modelClass;
        switch ($scene) {
            case 'index':
                // ====== ====== 排序 ====== ======
                $config['order']['id'] = 'desc';

                // ====== ====== 筛选 ====== ======
                // 状态
                if (isset($p['status']) && in_array($p['status'], [0,1])) {
                    $config['where']['status'] = $p['status'];
                }
                // 分类筛选
                if (isset($p['category_id']) && !empty($p['category_id'])) {
                    $config['where']['category_id'] = $p['category_id'];
                }
                // 关键字
                if (isset($p['keyword']) && $p['keyword']) {
                    $k = '%' . $p['keyword'] . '%';
                    foreach (['dict_name','dict_code','description'] as $col) {
                        $config['orWhere'][] = [$col, 'like', $k];
                    }
                }

                // ====== ====== 关联 ====== ======
                $config['with']['sysDictItem'][] = 'item_label';
                $config['with']['sysDictItem'][] = 'item_value';
                break;
            case 'show':
                $config['where']['id'] = $p['id'];
                // ====== ====== 关联 ====== ======
                $config['with']['sysDictItem'][] = 'item_label';
                $config['with']['sysDictItem'][] = 'item_value';
                break;
            case 'update':
            case 'destroy':
                $config['where']['id'] = $p['id'];
                break;
            case 'store':
                break;
            case 'scope':
                $config['order']['id'] = 'desc';
                // 决定查id还是code
                $scopeType = 0;
                if (isset($p['scope_type']) && $p['scope_type'] > 0) {
                    $scopeType = 1;
                }
                if (isset($p['scope']) && !empty($p['scope'])) {
                    if ($scopeType == 1) {
                        $config['where']['dict_code'] = ['in', explode(',', $p['scope'])];
                    } else {
                        $config['where']['id'] = ['in', explode(',', $p['scope'])];
                    }
                }
                $config['with']['sysDictItem'][] = 'dict_id';
                $config['with']['sysDictItem'][] = 'item_label';
                $config['with']['sysDictItem'][] = 'item_value';
                break;
            case 'group':
                $config['order']['id'] = 'desc';
                $config['where']['id'] = 1;
                $config['with']['sysDictItem'][] = 'dict_id';
                $config['with']['sysDictItem'][] = 'item_label';
                $config['with']['sysDictItem'][] = 'item_value';
                break;
        }
        
        return $config;
    }

    public function group(Request $request)
    {
        $config = $this->buildQueryConfig($request, 'group');
        $result = $this->logicShow($config);
        return $this->postProcess('group', $result);
    }


    public function serviceListAllScope(Request $request)
    {
        $config = $this->buildQueryConfig($request, 'scope');
        $result = $this->logicListAll($config);
        return $this->postProcess('ListAllScope', $result);
    }


    public function afterServiceListAllScope($data)
    {
        
        // $data->each(function (&$item) { 

        // });

        return $data;
    }

    public $translatFields = ['dict_name', 'description'];

    public function afterServiceStore($res)
    {
        $sourceLocale = locale();
        $data = $res->toArray();
        $traitsourceFields = Translat::extractSourceFields($data, $this->translatFields);

        (new TranslationService())->queueTranslations(
            'sys_dict',
            $res['id'],
            $sourceLocale,
            $traitsourceFields
        );
    }


    /*
    
        示例用法：
        
        // 1) 获取分类为“车辆类型”的所有字典
        $list = $dictService->getDictsByCategoryName('车辆类型');
        // => [['dict_code' => 'SUV', 'dict_name' => '越野车'], …]

        // 2) 获取某分类下某个 code 的名称
        $name = $dictService->getDictName('车辆类型', 'SUV');
        // => "越野车"

        // 3) 获取某分类下拉选项
        $options = $dictService->getDictOptions('车辆类型');
        // => ['SUV' => '越野车', 'SEDAN' => '轿车', …]

        // 4) 通过 code 直接拿名称（不管分类）
        $name = $dictService->getNameByCode('SUV');
        // => "越野车"

    */


    /**
     * 根据分类名获取字典列表
     */
    public function getDictsByCategoryName(string $categoryName): array
    {
        $category = SysDictCategory::where('category_name', $categoryName)
            ->where('status', 1)
            ->first();

        if (!$category) {
            return [];
        }

        return $category->dicts()->get(['dict_code', 'dict_name'])->toArray();
    }

    /**
     * 根据分类名 + 字典code 获取字典项名称
     */
    public function getDictName(string $categoryName, string $dictCode): ?string
    {
        $dict = SysDict::whereHas('category', function ($q) use ($categoryName) {
                $q->where('category_name', $categoryName)->where('status', 1);
            })
            ->where('dict_code', $dictCode)
            ->where('status', 1)
            ->whereNull('deleted_at')
            ->first();

        return $dict?->dict_name;
    }

    /**
     * 根据分类名获取下拉键值对
     * 返回格式：['code1' => '名称1', 'code2' => '名称2']
     */
    public function getDictOptions(string $categoryName): array
    {
        $dicts = $this->getDictsByCategoryName($categoryName);

        $options = [];
        foreach ($dicts as $item) {
            $options[$item['dict_code']] = $item['dict_name'];
        }

        return $options;
    }

    /**
     * 根据字典 code 获取对应的名称（不依赖分类）
     */
    public function getNameByCode(string $dictCode): ?string
    {
        $dict = SysDict::where('dict_code', $dictCode)
            ->where('status', 1)
            ->whereNull('deleted_at')
            ->first();

        return $dict?->dict_name;
    }
}