<?php

namespace App\Http\Controllers\Admin;

use App\Exports\BaseExport;
use App\Helpers\ResponseCode;
use App\Models\Course;
use App\Models\CustomForm;
use App\Models\CustomFormField;
use App\Models\EmployeeParticipation;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Validator;
use Maatwebsite\Excel\Facades\Excel;
use Rap2hpoutre\FastExcel\FastExcel;

class EmployeeParticipationController extends BaseController
{

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


    /**
     * @OA\Get(
     *     path="/api/admin/employee-participations/index",
     *     tags={"员工参与"},
     *     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：courseType"),
     *     @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="暂无"
     *     )
     * )
     */
    public function index()
    {
        $all = request()->all();
        $list = $this->model->where(function ($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/employee-participations/show",
     *     tags={"员工参与"},
     *     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 = $this->model->find($all['id']);
        return $this->success($detail);
    }

    /**
     * @OA\Post(
     *     path="/api/admin/employee-participations/save",
     *     tags={"员工参与"},
     *     summary="保存",
     *     description="",
     *     @OA\Parameter(name="id", in="query", @OA\Schema(type="int"), required=false, description="Id(存在更新，不存在新增)"),
     *     @OA\Parameter(name="type", in="query", @OA\Schema(type="integer"), required=true, description="类型：1员工参与数，2干部培训数"),
     *     @OA\Parameter(name="start_date", in="query", @OA\Schema(type="string", format="date"), required=false, description="开始日期"),
     *     @OA\Parameter(name="end_date", in="query", @OA\Schema(type="string", format="date"), required=false, description="结束日期"),
     *     @OA\Parameter(name="total", in="query", @OA\Schema(type="integer", format="int64"), required=false, description="数量"),
     *     @OA\Parameter(name="course_type_id", in="query", @OA\Schema(type="integer", format="int64"), required=false, description="课程类型ID"),
     *     @OA\Parameter(name="course_id", in="query", @OA\Schema(type="integer", format="int64"), required=false, description="课程ID"),
     *     @OA\Parameter(name="course_name", in="query", @OA\Schema(type="string", nullable=true), description="课程名称"),
     *     @OA\Parameter(name="company_name", in="query", @OA\Schema(type="string", nullable=true), description="公司名字"),
     *     @OA\Parameter(name="name", in="query", @OA\Schema(type="string", nullable=true), description="姓名"),
     *     @OA\Parameter(name="department", in="query", @OA\Schema(type="string", nullable=true), description="部门"),
     *     @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()
    {
        $all = \request()->all();
        DB::beginTransaction();
        try {
            if (isset($all['id'])) {
                $model = $this->model->find($all['id']);
                if (empty($model)) {
                    return $this->fail([ResponseCode::ERROR_BUSINESS, '数据不存在']);
                }
            } else {
                $model = $this->model;
            }
            $model->fill($all);
            $model->save();
            DB::commit();
            return $this->success($model);
        } catch (\Exception $exception) {
            DB::rollBack();
            return $this->fail([$exception->getCode(), $exception->getMessage()]);
        }
    }

    /**
     * @OA\Get(
     *     path="/api/admin/employee-participations/destroy",
     *     tags={"员工参与"},
     *     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();
    }

    /**
     * @OA\Post(
     *     path="/api/admin/employee-participations/excel-show",
     *     tags={"员工参与"},
     *     summary="导入预览",
     *     description="",
     *     @OA\Parameter(name="file", in="query", @OA\Schema(type="string"), required=true, description="文件"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function excelShow()
    {
        $file = \request()->file('file');
        //判断文件是否有效
        if (!(\request()->hasFile('file') && $file->isValid())) {
            return $this->fail([ResponseCode::ERROR_BUSINESS, '文件不存在或无效']);
        }
        //获取文件大小
        $img_size = floor($file->getSize() / 1024);
        if ($img_size >= 50 * 1024) {
            return $this->fail([ResponseCode::ERROR_BUSINESS, '文件必须小于50M']);
        }
        //过滤文件后缀
        $ext = $file->getClientOriginalExtension();
        if (!in_array($ext, ['xls', 'xlsx', 'csv'])) {
            return $this->fail([ResponseCode::ERROR_BUSINESS, '仅支持xls/xlsx/csv格式']);
        }
        $tempFile = $file->getRealPath();
        $dataArray = (new FastExcel)->import($tempFile)->toArray();

        // 类型映射：兼容页面文案、库字段备注、数字
        $typeMapping = [
            '元禾员工参与' => 1,
            '元和员工参与' => 1,
            '员工参与数' => 1,
            '员工参与' => 1,
            '1' => 1,
            '干部培训' => 2,
            '干部培训数' => 2,
            '2' => 2,
        ];

        $typeNameMapping = [
            1 => '元禾员工参与',
            2 => '干部培训',
        ];

        $list = [];
        foreach ($dataArray as $value) {
            if ($value instanceof \Illuminate\Support\Collection) {
                $value = $value->toArray();
            }
            if (!is_array($value)) {
                continue;
            }
            $row = $this->normalizeExcelRow($value);
            $courseName = $this->getExcelCell($row, ['课程名称']);
            $typeText = $this->getExcelCell($row, ['类型']);
            $companyName = $this->getExcelCell($row, ['公司名称', '公司名字']);
            $name = $this->getExcelCell($row, ['姓名']);
            $department = $this->getExcelCell($row, ['部门']);
            $total = $this->getExcelCell($row, ['数量']);

            // 跳过模板说明行、空行
            if ($this->isExcelInstructionRow($typeText, $courseName, $companyName, $name, $department)) {
                continue;
            }

            $type = $this->parseParticipationType($typeText, $typeMapping);

            $course = null;
            if ($courseName) {
                $course = Course::where('name', $courseName)->first();
            }

            $item = [
                'type' => $type,
                'type_name' => $type ? ($typeNameMapping[$type] ?? '') : '',
                'course_name' => $courseName,
                'company_name' => $companyName,
                'name' => $name,
                'department' => $department,
                'total' => $total !== null && $total !== '' ? $total : 1,
            ];

            if ($course) {
                $item['start_date'] = $course->start_date;
                $item['end_date'] = $course->end_date;
                $item['course_type_id'] = $course->type;
                $item['course_id'] = $course->id;
            } else {
                $item['start_date'] = null;
                $item['end_date'] = null;
                $item['course_type_id'] = null;
                $item['course_id'] = null;
            }

            $list[] = $item;
        }
        return $this->success($list);
    }

    /**
     * 去掉表头空格，避免 FastExcel 读到「类型 」导致取不到值
     */
    private function normalizeExcelRow(array $row): array
    {
        $normalized = [];
        foreach ($row as $key => $cell) {
            $header = trim((string)$key);
            if ($header === '') {
                continue;
            }
            if (is_string($cell)) {
                $cell = trim($cell);
            }
            $normalized[$header] = $cell;
        }
        return $normalized;
    }

    /**
     * 按候选表头取值，兼容「类型：1员工参与数，2干部培训数」这类备注表头
     */
    private function getExcelCell(array $row, array $candidates)
    {
        foreach ($candidates as $name) {
            if (array_key_exists($name, $row) && $row[$name] !== null && $row[$name] !== '') {
                return $row[$name];
            }
        }
        foreach ($row as $header => $cell) {
            foreach ($candidates as $name) {
                if (mb_strpos((string)$header, $name) !== false && $cell !== null && $cell !== '') {
                    return $cell;
                }
            }
        }
        return null;
    }

    private function isExcelInstructionRow($typeText, $courseName, $companyName, $name, $department): bool
    {
        $hasData = !empty($courseName) || !empty($companyName) || !empty($name) || !empty($department);
        $typeString = is_scalar($typeText) ? trim((string)$typeText) : '';
        $isTip = $typeString !== '' && (mb_strpos($typeString, '请填入') !== false || mb_strpos($typeString, '请确保') !== false);
        // 纯说明行才跳过；同一行如果已经填了业务数据则保留，类型按空处理
        if ($isTip && !$hasData) {
            return true;
        }
        return $typeString === '' && !$hasData;
    }

    private function parseParticipationType($typeText, array $typeMapping): ?int
    {
        if ($typeText === null || $typeText === '' || !is_scalar($typeText)) {
            return null;
        }
        if (is_numeric($typeText) && (int)$typeText > 0) {
            $numeric = (int)$typeText;
            return in_array($numeric, [1, 2], true) ? $numeric : null;
        }
        $typeString = trim((string)$typeText);
        if (mb_strpos($typeString, '请填入') !== false || mb_strpos($typeString, '请确保') !== false) {
            return null;
        }
        return $typeMapping[$typeString] ?? null;
    }

    /**
     * @OA\Post(
     *     path="/api/admin/employee-participations/import",
     *     tags={"员工参与"},
     *     summary="导入",
     *     description="",
     *     @OA\Parameter(name="data", in="query", @OA\Schema(type="string"), required=true, description="导入分析获取到的二维数组"),
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="暂无"
     *     )
     * )
     */
    public function import()
    {
        $all = \request()->all();
        $messages = [
            'data.required' => '数据必填',
        ];
        $validator = Validator::make($all, [
            'data' => 'required',
        ], $messages);
        if ($validator->fails()) {
            return $this->fail([ResponseCode::ERROR_PARAMETER, implode(',', $validator->errors()->all())]);
        }
        $records = $all['data'];
        DB::beginTransaction();
        try {
            $successCount = 0;
            foreach ($records as $record) {
                $this->model->create($record);
                $successCount++;
            }
            DB::commit();
            return $this->success(['total' => count($records), 'success_count' => $successCount]);
        } catch (\Exception $exception) {
            DB::rollBack();
            return $this->fail([$exception->getCode(), $exception->getMessage()]);
        }
    }

}