<?php

namespace App\Http\Controllers\Admin;

use App\Http\Requests\StudyRequest;
use App\Models\Study;
use App\Models\StudyAsk;
use App\Helpers\ResponseCode;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

/**
 * @OA\Tag(
 *     name="学习内容管理",
 *     description="学习内容相关接口"
 * )
 */
class StudyController extends BaseController
{
    public function __construct()
    {
        parent::__construct(new Study());
    }

    /**
     * @OA\Get(
     *     path="/api/admin/studies/index",
     *     tags={"学习内容管理"},
     *     summary="学习内容列表",
     *     description="获取学习内容列表",
     *     @OA\Parameter(name="is_export", in="query", @OA\Schema(type="string"), required=false, description="是否导出0否1是"),
     *     @OA\Parameter(name="export_fields", in="query", @OA\Schema(type="string"), required=false, description="需要导出的字段数组"),
     *     @OA\Parameter(name="filter", in="query", @OA\Schema(type="string"), required=false, description="查询条件。数组"),
     *     @OA\Parameter(name="show_relation", in="query", @OA\Schema(type="string"), required=false, description="需要输出的关联关系数组，填写输出指定数据"),
     *     @OA\Parameter(name="page_size", in="query", @OA\Schema(type="string"), required=false, description="每页显示的条数"),
     *     @OA\Parameter(name="page", in="query", @OA\Schema(type="string"), required=false, description="页码"),
     *     @OA\Parameter(name="sort_name", in="query", @OA\Schema(type="string"), required=false, description="排序字段名字"),
     *     @OA\Parameter(name="sort_type", in="query", @OA\Schema(type="string"), required=false, description="排序类型"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="成功获取学习内容列表"
     *     )
     * )
     */
    public function index()
    {
        $all = request()->all();
        $filter = $all['filter'] ?? [];
        $show_relation = $all['show_relation'] ?? [];
        $page_size = $all['page_size'] ?? 10;
        $page = $all['page'] ?? 1;
        $sort_name = $all['sort_name'] ?? 'id';
        $sort_type = $all['sort_type'] ?? 'desc';

        $query = $this->model->query();

        // 应用过滤条件
        if (!empty($filter)) {
            $query = $this->applyFilters($query, $filter);
        }

        // 应用排序
        $query->orderBy($sort_name, $sort_type);

        // 加载关联关系
        if (!empty($show_relation)) {
            $query->with($show_relation);
        }

        // 分页
        $result = $query->paginate($page_size, ['*'], 'page', $page);

        return $this->success($result);
    }

    /**
     * @OA\Get(
     *     path="/api/admin/studies/show",
     *     tags={"学习内容管理"},
     *     summary="学习内容详情",
     *     description="获取指定的学习内容详情",
     *     @OA\Parameter(name="id", in="query", @OA\Schema(type="string"), required=true, description="学习内容ID"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="成功获取学习内容详情"
     *     )
     * )
     */
    public function show()
    {
        $all = request()->all();
        $detail = $this->model->with(['studyAsks'])->find($all['id']);

        return $this->success($detail);
    }

    /**
     * @OA\Post(
     *     path="/api/admin/studies/save",
     *     tags={"学习内容管理"},
     *     summary="新增/更新学习内容",
     *     description="创建或更新学习内容",
     *     @OA\Parameter(name="id", in="query", @OA\Schema(type="string"), required=false, description="学习内容ID，更新时必填"),
     *     @OA\Parameter(name="title", in="query", @OA\Schema(type="string"), required=true, description="标题"),
     *     @OA\Parameter(name="type", in="query", @OA\Schema(type="string"), required=true, description="类型"),
     *     @OA\Parameter(name="content", in="query", @OA\Schema(type="string"), required=false, description="内容"),
     *     @OA\Parameter(name="file", in="query", @OA\Schema(type="string"), required=false, description="文件"),
     *     @OA\Parameter(name="duration", in="query", @OA\Schema(type="string"), required=false, description="时长"),
     *     @OA\Parameter(name="is_required", in="query", @OA\Schema(type="string"), required=false, description="是否必学"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="成功保存学习内容"
     *     )
     * )
     */
    public function save()
    {
        $request = new StudyRequest();
        $request->setContainer(app());
        $request->setRedirector(app('redirect'));

        DB::beginTransaction();
        try {
            $data = $request->validated();
            $all = request()->all();

            if (isset($all['id'])) {
                // 更新
                $study = $this->model->find($all['id']);
                if (!$study) {
                    return $this->fail([ResponseCode::ERROR_BUSINESS, __('study.not_found')]);
                }
                $study->update($data);
                $message = __('study.updated_successfully');
            } else {
                // 新增
                $study = $this->model->create($data);
                $message = __('study.created_successfully');
            }

            DB::commit();
            return $this->success($study);
        } catch (\Exception $exception) {
            DB::rollBack();
            return $this->fail([$exception->getCode(), $exception->getMessage()]);
        }
    }

    /**
     * @OA\Get(
     *     path="/api/admin/studies/destroy",
     *     tags={"学习内容管理"},
     *     summary="删除学习内容",
     *     description="删除指定的学习内容",
     *     @OA\Parameter(name="id", in="query", @OA\Schema(type="string"), required=true, description="学习内容ID"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="成功删除学习内容"
     *     )
     * )
     */
    public function destroy()
    {
        $all = request()->all();
        $study = $this->model->find($all['id']);
        if (!$study) {
            return $this->fail([ResponseCode::ERROR_BUSINESS, __('study.not_found')]);
        }

        DB::beginTransaction();
        try {
            $study->delete();

            DB::commit();
            return $this->success(__('study.deleted_successfully'));
        } catch (\Exception $exception) {
            DB::rollBack();
            return $this->fail([$exception->getCode(), $exception->getMessage()]);
        }
    }

    /**
     * 应用过滤条件
     */
    private function applyFilters($query, $filter)
    {
        foreach ($filter as $key => $value) {
            if (is_array($value)) {
                $query->whereIn($key, $value);
            } else {
                $query->where($key, $value);
            }
        }
        return $query;
    }
}