<?php

namespace app\admin\controller\commission;

use app\common\controller\Backend;
use app\common\model\commission\CommissionGoods as CommissionGoodsModel;
use app\common\model\Goods as GoodsModel;
use app\common\model\commission\Level as LevelModel;
use app\common\Enum\CommissionGoodsEnum;
use think\Db;

class Goods extends Backend
{
    protected $model = null;
    protected $goodsModel;
    
    /**
     * 快速搜索时执行查找的字段
     */
    protected $searchFields = 'id,title,subtitle';
    
    /**
     * 是否是关联查询
     */
    protected $relationSearch = false;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new GoodsModel();  // 使用商品模型作为主模型，以便使用FastAdmin的标准功能
        $this->goodsModel = new GoodsModel();
        
        // 传递枚举配置给前端
        $this->assignconfig('commission_goods_participate_list', CommissionGoodsEnum::$participateList);
        $this->assignconfig('commission_goods_order_status_list', CommissionGoodsEnum::$orderStatusList);
        $this->assignconfig('commission_goods_rule_type_list', CommissionGoodsEnum::$ruleTypeList);
        $this->assignconfig('commission_goods_level_list', CommissionGoodsEnum::$levelList);
        $this->assignconfig('commission_goods_self_buy_list', CommissionGoodsEnum::$selfBuyList);
        $this->assignconfig('commission_goods_settlement_list', CommissionGoodsEnum::$settlementList);
        $this->assignconfig('commission_goods_commission_settlement_list', CommissionGoodsEnum::$commissionSettlementList);
        $this->assignconfig('commission_goods_commission_type_list', CommissionGoodsEnum::$commissionTypeList);
    }

    public function index()
    {
        if (!$this->request->isAjax()) {
            return $this->view->fetch();
        }

        //如果发送的来源是 Selectpage，则转发到 Selectpage
        if ($this->request->request('keyField')) {
            return $this->selectpage();
        }
        
        [$where, $sort, $order, $offset, $limit] = $this->buildparams();
        
        $list = $this->model
            ->with('commission_goods')
            ->where($where)
            ->order($sort, $order)
            ->paginate($limit);
        
        $result = ['total' => $list->total(), 'rows' => $list->items()];
        return json($result);
    }

    /**
     * 详情
     *
     * @param  $id
     */
    public function detail($id)
    {
        $goodsList = collection(GoodsModel::with(['commission_goods'])->whereIn('id', $id)->select())->each(function ($goods) {
            $goods->skus = $goods->skus;
            $goods->sku_prices = $goods->sku_prices;
        });

        // 获取分销配置
        $config = [
            'participate_list' => CommissionGoodsEnum::$participateList,
            'rule_type_list' => CommissionGoodsEnum::$ruleTypeList,
            'level_list' => CommissionGoodsEnum::$levelList
        ];
        
        $this->success('分销商品详情', null, [
            'goods' => $goodsList,
            'config' => $config
        ]);
    }

    /**
     * 设置佣金
     *
     * @param  $ids
     */
    public function edit($ids = null)
    {
        if (!$this->request->isPost()) {
            // GET请求，显示设置页面
            $goodsIds = explode(',', $ids);
            $goodsList = GoodsModel::whereIn('id', $goodsIds)
                ->with(['commission_goods'])
                ->select();
            
            // 获取分销商等级列表
            $levelList = LevelModel::where('status', 'normal')
                ->order('level asc')
                ->select();
            
            $this->view->assign([
                'goods_list' => $goodsList,
                'level_list' => $levelList,
                'goods_ids' => $ids
            ]);
            
            return $this->view->fetch();
        }

        // POST请求，保存设置
        $params = $this->request->post();
        
        // 验证必需参数
        if (empty($ids)) {
            $this->error('商品ID不能为空');
        }

        $result = Db::transaction(function () use ($ids, $params) {
            $goodsIds = explode(',', $ids);
            $count = 0;

            foreach ($goodsIds as $goods_id) {
                $goods_id = intval($goods_id);
                if ($goods_id <= 0) continue;

                // 查找或创建分销商品记录
                $commissionGoods = CommissionGoodsModel::where('goods_id', $goods_id)->find();
                if (!$commissionGoods) {
                    $commissionGoods = new CommissionGoodsModel();
                    $commissionGoods->goods_id = $goods_id;
                }

                // 保存基本设置
                $commissionGoods->status = intval($params['status'] ?? CommissionGoodsEnum::PARTICIPATE_NO);
                $commissionGoods->order_status = intval($params['order_status'] ?? CommissionGoodsEnum::ORDER_STATUS_YES);
                $commissionGoods->rule_type = intval($params['rule_type'] ?? CommissionGoodsEnum::RULE_TYPE_DEFAULT);
                $commissionGoods->self_buy = intval($params['self_buy'] ?? CommissionGoodsEnum::SELF_BUY_OFF);
                $commissionGoods->settlement_type = intval($params['settlement_type'] ?? CommissionGoodsEnum::SETTLEMENT_GOODS_PRICE);
                $commissionGoods->commission_settlement = intval($params['commission_settlement'] ?? CommissionGoodsEnum::COMMISSION_AFTER_PAY);
                
                // 保存扩展配置
                $config = [];
                if (!empty($params['config'])) {
                    $config = is_array($params['config']) ? $params['config'] : json_decode($params['config'], true);
                }
                $commissionGoods->config = $config;

                $commissionGoods->save();

                // 如果是独立规则或批量规则，保存佣金规则
                if (in_array($commissionGoods->rule_type, [CommissionGoodsEnum::RULE_TYPE_CUSTOM, CommissionGoodsEnum::RULE_TYPE_BATCH])) {
                    if (!empty($params['commission_rules'])) {
                        $this->saveCommissionRules($goods_id, $params['commission_rules'], $commissionGoods->rule_type);
                    }
                }

                $count++;
            }

            return $count;
        });

        if ($result) {
            $this->success('设置成功', '', $result);
        } else {
            $this->error('设置失败');
        }
    }

    /**
     * 保存佣金规则
     */
    private function saveCommissionRules($goodsId, $rulesData, $ruleType)
    {
        // 删除现有规则
        Db::name('commission_goods_rules')
            ->where('goods_id', $goodsId)
            ->delete();

        if (empty($rulesData) || !is_array($rulesData)) {
            return true;
        }

        $insertData = [];
        
        foreach ($rulesData as $agentLevel => $levelRules) {
            if (!is_array($levelRules)) continue;
            
            foreach ($levelRules as $commissionLevel => $rule) {
                if (empty($rule['value']) || bccomp($rule['value'], '0', 4) <= 0) {
                    continue;
                }
                
                $insertData[] = [
                    'goods_id' => $goodsId,
                    'sku_id' => 0, // 批量规则统一为0，独立规则需要具体SKU ID
                    'agent_level' => intval($agentLevel),
                    'commission_level' => intval($commissionLevel),
                    'type' => $rule['type'] ?? 'rate',
                    'value' => floatval($rule['value']),
                    'status' => 1,
                    'createtime' => time(),
                    'updatetime' => time()
                ];
            }
        }

        if (!empty($insertData)) {
            return Db::name('commission_goods_rules')->insertAll($insertData);
        }

        return true;
    }
}