<?php

namespace App\Http\Controllers\Admin;

use App\Exports\BaseExport;
use App\Helpers\ResponseCode;
use App\Models\AppointmentType;
use App\Models\Book;
use App\Models\CourseContentEvaluationAsk;
use App\Models\CourseContentEvaluationForm;
use App\Models\CourseContentEvaluation;
use App\Services\Survey\SurveySchema;
use App\Services\Survey\SurveyStatistics;
use App\Models\CustomForm;
use App\Models\CustomFormField;
use App\Models\SupplyDemand;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Validator;
use Maatwebsite\Excel\Facades\Excel;
use Rap2hpoutre\FastExcel\FastExcel;

class CourseContentEvaluationFormController extends BaseController
{

    /**
     * 构造函数
     */
    public function __construct()
    {
        parent::__construct(new CourseContentEvaluationForm());
    }


    /**
     * @OA\Get(
     *     path="/api/admin/course-content-evaluation-form/index",
     *     tags={"评价内容管理"},
     *     summary="列表",
     *     description="",
     *     @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，包括：teacher，courseSettings，coursePeriods"),
     *     @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\Parameter(name="keyword", in="query", @OA\Schema(type="string"), required=true, description="关键词"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function index()
    {
        $all = request()->all();
        $list = $this->model->with('user')->where(function ($query) use ($all) {
            if (isset($all['filter']) && !empty($all['filter'])) {
                foreach ($all['filter'] as $condition) {
                    $key = $condition['key'] ?? null;
                    $op = $condition['op'] ?? null;
                    $value = $condition['value'] ?? null;
                    if (!isset($key) || !isset($op) || !isset($value)) {
                        continue;
                    }
                    // 等于
                    if ($op == 'eq') {
                        $query->where($key, $value);
                    }
                    // 不等于
                    if ($op == 'neq') {
                        $query->where($key, '!=', $value);
                    }
                    // 大于
                    if ($op == 'gt') {
                        $query->where($key, '>', $value);
                    }
                    // 大于等于
                    if ($op == 'egt') {
                        $query->where($key, '>=', $value);
                    }
                    // 小于
                    if ($op == 'lt') {
                        $query->where($key, '<', $value);
                    }
                    // 小于等于
                    if ($op == 'elt') {
                        $query->where($key, '<=', $value);
                    }
                    // 模糊搜索
                    if ($op == 'like') {
                        $query->where($key, 'like', '%' . $value . '%');
                    }
                    // 否定模糊搜索
                    if ($op == 'notlike') {
                        $query->where($key, 'not like', '%' . $value . '%');
                    }
                    // 范围搜索
                    if ($op == 'range') {
                        list($from, $to) = explode(',', $value);
                        if (empty($from) || empty($to)) {
                            continue;
                        }
                        $query->whereBetween($key, [$from, $to]);
                    }
                }
            }
        })->orderBy($all['sort_name'] ?? 'id', $all['sort_type'] ?? 'desc');
        if (isset($all['is_export']) && !empty($all['is_export'])) {
            $list = $list->get()->toArray();
            $export_fields = $all['export_fields'] ?? [];
            // 导出文件名字
            $tableName = $this->model->getTable();
            $filename = (new CustomForm())->getTableComment($tableName);
            return Excel::download(new BaseExport($export_fields, $list, $tableName), $filename . date('YmdHis') . '.xlsx');
        } else {
            // 输出
            $list = $list->paginate($all['page_size'] ?? 20);
        }
        return $this->success($list);
    }

    /**
     * @OA\Get(
     *     path="/api/admin/course-content-evaluation-form/show",
     *     tags={"评价内容管理"},
     *     summary="详情",
     *     description="",
     *     @OA\Parameter(name="id", in="query", @OA\Schema(type="string"), required=true, description="id"),
     *     @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="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function show()
    {
        $all = \request()->all();
        $messages = [
            'id.required' => 'Id必填',
        ];
        $validator = Validator::make($all, [
            'id' => 'required'
        ], $messages);
        if ($validator->fails()) {
            return $this->fail([ResponseCode::ERROR_PARAMETER, implode(',', $validator->errors()->all())]);
        }
        $detail = $this->model->with('user')->find($all['id']);
        if (!$detail) return $this->fail([ResponseCode::ERROR_BUSINESS, '答卷不存在']);
        $questions = CourseContentEvaluationAsk::where('course_content_evaluation_id', $detail->course_content_evaluation_id)->orderBy('sort')->orderBy('id')->get()->toArray();
        $detail->questions = SurveySchema::replyQuestions($questions, $detail->data, $detail->snapshot);
        return $this->success($detail);
    }

    /**
     * @OA\Post(
     *     path="/api/admin/course-content-evaluation-form/save",
     *     tags={"评价内容管理"},
     *     summary="保存",
     *     description="",
     *     @OA\Parameter(name="id", in="query", @OA\Schema(type="integer", format="int64"), required=true, description="课程内容评价字段ID（存在则更新，不存在则新增）"),
     *     @OA\Parameter(name="course_content_id", in="query", @OA\Schema(type="integer", format="int32"), required=true, description="课程排课ID"),
     *     @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="字段类型。单选radio，多选checkbox，问答text，评分number，日期date，日期时间datetime"),
     *     @OA\Parameter(name="key", in="query", @OA\Schema(type="string"), required=true, description="英文标识"),
     *     @OA\Parameter(name="remark", in="query", @OA\Schema(type="string"), required=false, description="备注"),
     *     @OA\Parameter(name="sort", in="query", @OA\Schema(type="integer", format="int32"), required=false, description="排序"),
     *     @OA\Parameter(name="options", in="query", @OA\Schema(type="string"), required=false, description="选项，以英文逗号分隔"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="认证token"),
     *     @OA\Response(
     *         response="200",
     *         description="操作成功"
     *     )
     * )
     */
    public function save()
    {
        return $this->fail([ResponseCode::ERROR_BUSINESS, '答卷保存后不可修改，请通过学员端提交']);
    }

    /**
     * @OA\Get(
     *     path="/api/admin/course-content-evaluation-form/destroy",
     *     tags={"评价内容管理"},
     *     summary="删除",
     *     description="",
     *     @OA\Parameter(name="id", in="query", @OA\Schema(type="string"), required=true, description="id"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function destroy()
    {
        return parent::destroy();
    }

    public function statistics()
    {
        $survey = CourseContentEvaluation::findOrFail(request('course_content_evaluation_id'));
        $questions = $survey->courseContentEvaluationAsks()->with('courseContent.teacher')->orderBy('sort')->orderBy('id')->get()->toArray();
        // All v2 replies share a frozen structure. Prefer the authoritative snapshot.
        $first = $survey->courseContentEvaluationForms()->whereNotNull('snapshot')->orderBy('id')->first();
        if ($first && isset($first->snapshot['questions'])) $questions = $first->snapshot['questions'];
        return $this->success(SurveyStatistics::summarize($questions, $survey->courseContentEvaluationForms()->select(['id', 'data', 'snapshot'])->cursor()));
    }

    public function textAnswers()
    {
        $survey = CourseContentEvaluation::findOrFail(request('course_content_evaluation_id'));
        $questionId = (string) request('question_id');
        $other = request('kind') === 'other';
        $page = max(1, (int) request('page', 1));
        $size = min(50, max(1, (int) request('page_size', 20)));
        $total = 0;
        $items = [];
        foreach ($survey->courseContentEvaluationForms()->orderByDesc('id')->cursor() as $response) {
            $raw = SurveySchema::answerMap($response->data)[$questionId] ?? [];
            $value = $other ? ($raw['other_text'] ?? $raw['allow_input_text'] ?? null) : ($raw['value'] ?? null);
            if (!is_scalar($value) || SurveySchema::blank($value)) continue;
            if ($total >= ($page - 1) * $size && count($items) < $size) {
                $items[] = ['id' => $response->id, 'text' => (string) $value, 'created_at' => (string) $response->created_at];
            }
            $total++;
        }
        return $this->success(['data' => $items, 'total' => $total, 'current_page' => $page]);
    }

}