<?php

namespace App\Http\Controllers\Points;

use App\Facade\Site;
use App\Libs\ApiResponse;
use App\Libs\Utils;
use App\Services\PointsService;
use App\Transformer\Points\PointsTransformer;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Support\Facades\Validator;

class PointsController extends BaseController
{
    use ApiResponse;
    protected $pointsService;

    public function __construct(PointsService $pointsService)
    {
        $this->pointsService = $pointsService;
    }

    /**
     * 积分流水列表（前端查看积分明细）
     *
     * @param Request $request
     * @return mixed
     */
    public function records(Request $request)
    {
        $result = $this->pointsService->getUserPointsRecords($request->all());
        $transformer = new PointsTransformer();

        return $this->success([
            'summary' => $result['summary'],
            'meta' => getMeta($result['records']),
            'list' => $transformer->newEachPointsRecord($result['records']),
        ]);
    }

    /**
     * 积分明细导出 CSV（筛选条件与列表一致：uid/type/start_date/end_date）
     *
     * @param Request $request
     * @return void
     */
    public function exportRecords(Request $request)
    {
        $this->pointsService->exportPointsRecords($request->all());
    }

    /**
     * 获取系统当前全部积分规则（文生文/图片/视频）
     *
     * 供前端积分规则管理页展示：
     * - chat：文生文（对话）扣分规则（默认10，支持按模型配置）
     * - image_models：图片模型计费规则
     * - video_models：视频模型计费规则
     *
     * @param Request $request
     * @return mixed
     */
    public function rules(Request $request)
    {
        $this->checkSuperadmin();

        return $this->success($this->pointsService->getPointsRules());
    }

    /**
     * 编辑积分规则（文生文/图片/视频）
     *
     * 入参三个区块均可选传，单次至少传一个：
     * - text_rules：文生文规则列表 [{model?, charge_type?, price_json?}]，model 可不传，不传时更新全部文生文模型
     * - image_rules：图片规则列表 [{model, charge_type?, price_json?}]
     * - video_rules：视频规则列表 [{model, charge_type?, price_json?}]
     * 图片/视频规则 model 必填；每条规则 charge_type / price_json 至少传一个（未传字段保留原值）。
     *
     * @param Request $request
     * @return mixed
     */
    public function editRules(Request $request)
    {
        $this->checkSuperadmin();

        $data = $request->all();

        $validator = Validator::make($data, [
            'text_rules' => 'nullable|array',
            'image_rules' => 'nullable|array',
            'video_rules' => 'nullable|array',
        ], [
            'text_rules.array' => 'text_rules必须为数组',
            'image_rules.array' => 'image_rules必须为数组',
            'video_rules.array' => 'video_rules必须为数组',
        ]);

        if ($validator->fails()) {
            Utils::throwError('1002:' . $validator->errors()->first());
        }

        $hasText = isset($data['text_rules']) && !empty($data['text_rules']);
        $hasImage = isset($data['image_rules']) && !empty($data['image_rules']);
        $hasVideo = isset($data['video_rules']) && !empty($data['video_rules']);
        if (!$hasText && !$hasImage && !$hasVideo) {
            Utils::throwError('1002:请至少传入text_rules、image_rules或video_rules之一');
        }

        $updated = $this->pointsService->updatePointsRules($data);

        return $this->success([
            'updated' => $updated,
            'remark' => '计费规则已更新，后续生成任务按新规则扣费',
        ]);
    }

    /**
     * 发放/回收积分（平台↔组织 / 组织↔同公司组员，支持批量）
     *
     * 入参：
     * - uid：目标用户ID（必填，支持多个ID用英文逗号隔开，如 142857,142858）
     * - points：发放积分数（必填，大于0）
     * - action：操作类型 grant-发放（默认）/ revoke-回收（可选）
     * - remark：备注文案（可选，回收时校验目标积分充足）
     *
     * @param Request $request
     * @return mixed
     */
    public function grantPoints(Request $request)
    {
        $data = $request->all();

        $validator = Validator::make($data, [
            'uid' => ['required', 'regex:/^[\d\s,]+$/'],
            'points' => 'required|integer|gt:0',
            // 'action' => 'nullable|string|in:grant,revoke',
            'remark' => 'nullable|string|max:200',
        ], [
            'uid.required' => '请传入目标用户uid',
            'uid.regex' => 'uid格式不正确，多个用户ID请用英文逗号隔开，如 142857,142858',
            'points.required' => '请传入发放积分数',
            'points.integer' => '发放积分数必须为整数',
            'points.gt' => '发放积分数必须大于0',
            // 'action.in' => 'action仅支持grant（发放）或revoke（回收）',
            'remark.max' => '备注不能超过200个字符',
        ]);

        if ($validator->fails()) {
            Utils::throwError('1002:' . $validator->errors()->first());
        }

        $result = $this->pointsService->grantPoints($data);

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

    /**
     * 获取可发放积分的用户列表
     *
     * 同一接口按当前角色返回：
     * - 平台（superadmin）：所有组织
     * - 组织（admin）：同公司组员
     *
     * @param Request $request
     * @return mixed
     */
    public function grantUsers(Request $request)
    {
        return $this->success([
            'list' => $this->pointsService->getGrantUserList(),
        ]);
    }

    /**
     * 校验当前用户是否为平台
     *
     * @return void
     */
    private function checkSuperadmin(): void
    {
        if (Site::getRole() !== 'superadmin') {
            Utils::throwError('1005:仅平台可操作积分规则');
        }
    }
}