<?php

namespace App\Http\Resources\Registration\Schedule;

use App\Models\Department;
use App\Models\DepartmentCategory;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Redis;
use mysql_xdevapi\Collection;

class DeptListsResource extends JsonResource
{
    /**
     * Transform the resource into an array.
     *
     * @return array<string, mixed>
     */
    public function toArray(Request $request = null): array
    {
        // 科室分类
        $categories = $this->getDepartmentCategoryLists();

        // 科室及排序
        $departments = $this->getDepartmentLists();
        $sorts = collect($departments)->pluck('sort', 'dept_id')->toArray();
        // 根据科室的 sort 字段对 科室列表 进行排序
        usort($this->resource['response'], function ($a, $b) use ($sorts) {
            $sort_a = $sorts[$a['typeId']] ?? 0;
            $sort_b = $sorts[$b['typeId']] ?? 0;
            return $sort_b <=> $sort_a; // 倒序排序
        });

        foreach ($this->resource['response'] as $v) {
            if (!isset($categories[$departments[$v['typeId']]['category_id']])) {
                continue;
            }

            $categories[$departments[$v['typeId']]['category_id']]['item_lists'][] = [
                'dept_id' => $v['typeId'],
                'dept_name' => $v['typeName'],
                // 'dept_intro' => $v['introduce'] ?? ''
            ];
        }

        return array_values($categories);
    }

    /**
     * 获取科室分类
     * @return array
     */
    public function getDepartmentCategoryLists(): array
    {
        if (Redis::exists('department.category')) {
            $category_lists = Redis::get('department.category');
            $category_lists = json_decode($category_lists, true);
        } else {
            $category_lists = DepartmentCategory::select('id as category_id', 'name as category_name')
                ->orderBy('sort', 'DESC')
                ->orderBy('id', 'ASC')
                ->get();

            $category_lists = $category_lists->keyBy('category_id')->map(function ($value) { return (array)$value; })->toArray();
            Redis::setex('department.category', 4 * 3600, json_encode($category_lists, JSON_UNESCAPED_UNICODE));
        }

        return $category_lists;
    }

    /**
     * 获取医生列表
     * @return array
     */
    public function getDepartmentLists(): array
    {
        if (Redis::exists('department.lists')) {
            $department_lists = Redis::get('department.lists');
            $department_lists = json_decode($department_lists, true);
        } else {
            $department_lists = Department::where('is_enable', 1)
                ->orderBy('sort', 'DESC')
                ->orderBy('id', 'ASC')
                ->get();

            $department_lists = $department_lists->keyBy('dept_id')->map(function ($value) { return (array)$value; })->toArray();
            Redis::setex('department.lists', 4 * 3600, json_encode($department_lists, JSON_UNESCAPED_UNICODE));
        }

        return $department_lists;
    }
}