<?php

namespace app\common\Service;


use think\Db;
use app\common\enum\OrderEnum;
use app\common\Service\OrderService;
use app\common\exception\BusinessException;

class InspectService
{
    /**
     * 获取验货选项列表
     * @param array $params 查询参数
     * @return array
     */
    public static function getInspectionItems($params = [])
    {
        $where = [];
        
        // 父级ID筛选
        if (isset($params['parent_id'])) {
            $where['parent_id'] = $params['parent_id'];
        }
        
        // 状态筛选
        if (isset($params['status']) && $params['status'] !== '') {
            $where['status'] = $params['status'];
        }
        
        // 是否必检项筛选
        if (isset($params['is_required']) && $params['is_required'] !== '') {
            $where['is_required'] = $params['is_required'];
        }
        
        // 名称搜索
        if (isset($params['name']) && $params['name'] !== '') {
            $where['name'] = ['like', '%' . $params['name'] . '%'];
        }
        
        $query = (new \app\common\model\inspection\Item())->where($where)
          ->field('id,name,parent_id,is_required,status,standard_desc');
        
        // 排序
        $order = isset($params['order']) ? $params['order'] : 'id ASC';
        $query->order($order);
        
        // 分页处理
        if (isset($params['page']) && isset($params['page_size'])) {
            $result = $query->paginate([
                'page' => $params['page'],
                'list_rows' => $params['page_size']
            ]);
            return $result;
        }
        
        return $query->select();
    }
    
    /**
     * 获取树形结构的验货选项
     * @param array $params 查询参数
     * @return array
     */
    public function getInspectionItemTree($params = [])
    {
        // 获取所有选项
        $allItems = $this->getInspectionItems($params);
        
        if (is_object($allItems)) {
            // 分页对象转数组
            $allItems = $allItems->toArray()['data'];
        }
        
        return $this->buildTree($allItems);
    }
    
    /**
     * 构建树形结构
     * @param array $items 选项数组
     * @param int $parentId 父级ID
     * @return array
     */
    private function buildTree($items, $parentId = 0)
    {
        $tree = [];
        
        foreach ($items as $item) {
            if ($item['parent_id'] == $parentId) {
                $children = $this->buildTree($items, $item['id']);
                if (!empty($children)) {
                    $item['children'] = $children;
                }
                $tree[] = $item;
            }
        }
        
        return $tree;
    }
    
    /**
     * 根据ID获取验货选项详情
     * @param int $id 选项ID
     * @return array|null
     */
    public function getInspectionItemById($id)
    {
        return Db::name('inspection_item')
            ->where('id', $id)
            ->where('deletetime', 'exp', 'IS NULL')
            ->find();
    }
    
    /**
     * 获取必检项列表
     * @param array $params 查询参数
     * @return array
     */
    public function getRequiredItems($params = [])
    {
        $params['is_required'] = 1;
        return $this->getInspectionItems($params);
    }
    
    /**
     * 获取顶级选项（parent_id = 0）
     * @param array $params 查询参数
     * @return array
     */
    public function getTopLevelItems($params = [])
    {
        $params['parent_id'] = 0;
        return $this->getInspectionItems($params);
    }
    
    /**
     * 获取指定父级下的子选项
     * @param int $parentId 父级ID
     * @param array $params 其他查询参数
     * @return array
     */
    public function getChildItems($parentId, $params = [])
    {
        $params['parent_id'] = $parentId;
        return $this->getInspectionItems($params);
    }
    
    /**
     * 搜索验货选项
     * @param string $keyword 搜索关键词
     * @param array $params 其他查询参数
     * @return array
     */
    public function searchItems($keyword, $params = [])
    {
        $params['name'] = $keyword;
        return $this->getInspectionItems($params);
    }

    /**
     * 提交验货任务  接口总方法
     * @param array $taskData 任务数据
     * @param array $resultData 验货结果数据
     * @return array
     */
    public static function submitInspectionTask($taskData, $resultData)
    {
        Db::startTrans();
        
        try {
            // 0. 验证订单和订单商品是否存在
            $orderId = $taskData['order_id'] ?? 0;
            $orderGoodsId = $taskData['order_goods_id'] ?? 0;
            
            $orderData = OrderService::validateOrderAndOrderGoods($orderId, $orderGoodsId);
            if (!$orderData) {
                throw new BusinessException('订单或订单商品不存在');
            }
            
            // 0.1 验证是否重复提交验货任务（如果不是更新任务的话）
            if (empty($taskData['task_id'])) {
                $existingTask = self::checkDuplicateInspectionTask($orderId, $orderGoodsId);
                if ($existingTask) {
                    throw new BusinessException('该订单商品已存在验货任务，不能重复提交');
                }
            }
            
            // 1. 创建或更新验货任务
            $taskId = self::saveInspectionTask($taskData);
            
            if (!$taskId) {
                throw new BusinessException('验货任务创建失败');
            }
            
            // 2. 保存验货结果
            if (!empty($resultData)) {
                foreach ($resultData as $result) {
                    $result['task_id'] = $taskId;
                    $resultId = self::saveInspectionResult($result);
                    
                    // 3. 保存验货照片
                    if (!empty($result['photos'])) {
                        self::saveInspectionPhotos($resultId, $result['photos']);
                    }
                }
            }
            
            //  验货结果 是 通过 还是 不通过
            $isPass = 1;
            foreach ($resultData as $result) {
                if ($result['is_qualified'] == 0) {
                    $isPass = 0;
                    break;
                }
            }            
            
            // 4. 更新任务状态为已完成
            self::updateTaskStatus($taskId, 2, $isPass); // 2:已完成

            // 5. 更新订单商品的验收状态
            $inspectStatus = $isPass ? 1 : 2; // 1:验收通过 2:验收不通过
            OrderService::updateOrderGoodsInspectStatus($taskData['order_goods_id'], $inspectStatus);
            
            // 6. 检查订单是否所有商品都验收完成，决定是否更新订单状态
            OrderService::updateOrderStatusByInspectResult($taskData['order_id'], $taskData['inspector_id'] ?? 0);
            
            Db::commit();            
            return [1, '验货任务提交成功', ['task_id' => $taskId]];
            
        } catch (\Exception $e) {
            Db::rollback();
            return [0, '验货任务提交失败：' . $e->getMessage(), []];
        }
    }
    
    /**
     * 保存验货任务
     * @param array $taskData 任务数据
     * @return int 任务ID
     */
    private static function saveInspectionTask($taskData)
    {
        $data = [
            'order_id' => $taskData['order_id'] ?? 0,
            'order_goods_id' => $taskData['order_goods_id'] ?? 0,
            'inspector_id' => $taskData['inspector_id'] ?? 0,
            'remark' => $taskData['remark'] ?? '',
            'images' => $taskData['images'] ?? '',
            'start_time' => $taskData['start_time'] ?? time(),
            'end_time' => $taskData['end_time'] ?? time(),
            'task_status' => $taskData['task_status'] ?? 1,
            'status' => $taskData['status'] ?? 1,
            'updatetime' => time()
        ];
        
        // 如果提供了task_id，则更新，否则创建
        if (isset($taskData['task_id']) && $taskData['task_id'] > 0) {
            $result = Db::table('inspection_task')
                ->where('id', $taskData['task_id'])
                ->update($data);
            return $result ? $taskData['task_id'] : false;
        } else {
            $data['createtime'] = time();
            return Db::table('inspection_task')->insertGetId($data);
        }
    }
    
    /**
     * 保存验货结果
     * @param array $resultData 结果数据
     * @return int 结果ID
     */
    private static function saveInspectionResult($resultData)
    {
        $data = [
            'task_id' => $resultData['task_id'],
            'item_id' => $resultData['item_id'],
            'name' => $resultData['name'] ?? '',
            'is_qualified' => $resultData['is_qualified'] ?? 1,
            'remark' => $resultData['remark'] ?? '',
            'status' => $resultData['status'] ?? 1,
            'createtime' => time(),
            'updatetime' => time()
        ];
        
        return Db::table('inspection_result')->insertGetId($data);
    }
    
    /**
     * 保存验货照片
     * @param int $resultId 结果ID
     * @param array $photos 照片数组
     * @return bool
     */
    private static function saveInspectionPhotos($resultId, $photos)
    {
        if (empty($photos) || !is_array($photos)) {
            return true;
        }
        
        $photoData = [];
        foreach ($photos as $photo) {
            $photoData[] = [
                'result_id' => $resultId,
                'photo_url' => $photo['photo_url'] ?? $photo,
                'upload_time' => $photo['upload_time'] ?? time(),
                'status' => $photo['status'] ?? 1,
                'createtime' => time(),
                'updatetime' => time()
            ];
        }
        
        return Db::table('inspection_photo')->insertAll($photoData);
    }
    
    /**
     * 更新任务状态
     * @param int $taskId 任务ID
     * @param int $status 状态 1:进行中 2:已完成
     * @param int $isPass 是否通过
     * @return bool
     */
    private static function updateTaskStatus($taskId, $status,$isPass)
    {
        return Db::table('inspection_task')
            ->where('id', $taskId)
            ->update([
                'task_status' => $status,
                'end_time' => time(),
                'updatetime' => time(),
                'is_qualified' => $isPass
            ]);
    }
    
    /**
     * 获取验货任务详情
     * @param int $taskId 任务ID
     * @return array|null
     */
    public static function getInspectionTaskDetail($taskId)
    {
        // 获取任务基本信息
        $task = Db::table('inspection_task')
            ->where('id', $taskId)
            ->where('deletetime', 'exp', 'IS NULL')
            ->find();
            
        if (!$task) {
            return null;
        }
        
        // 获取验货结果
        $results = Db::table('inspection_result')
            ->where('task_id', $taskId)
            ->where('deletetime', 'exp', 'IS NULL')
            ->select();
            
        // 为每个结果获取照片
        foreach ($results as &$result) {
            $photos = Db::table('inspection_photo')
                ->where('result_id', $result['id'])
                ->where('deletetime', 'exp', 'IS NULL')
                ->select();
            $result['photos'] = $photos;
        }
        
        $task['results'] = $results;
        
        return $task;
    }
    
    /**
     * 获取验货任务列表
     * @param array $params 查询参数
     * @return array
     */
    public static function getInspectionTaskList($params = [])
    {
        $where = [];
        $where['deletetime'] = ['exp', 'IS NULL'];
        
        // 验货员ID筛选
        if (isset($params['inspector_id']) && $params['inspector_id'] > 0) {
            $where['inspector_id'] = $params['inspector_id'];
        }
        
        // 订单ID筛选
        if (isset($params['order_id']) && $params['order_id'] > 0) {
            $where['order_id'] = $params['order_id'];
        }
        
        // 任务状态筛选
        if (isset($params['task_status']) && $params['task_status'] !== '') {
            $where['task_status'] = $params['task_status'];
        }
        
        // 时间范围筛选
        if (isset($params['start_time']) && isset($params['end_time'])) {
            $where['createtime'] = ['between', [$params['start_time'], $params['end_time']]];
        }
        
        $query = Db::name('inspection_task')->where($where);
        
        // 排序
        $order = $params['order'] ?? 'createtime DESC';
        $query->order($order);
        
        // 分页处理
        if (isset($params['page']) && isset($params['page_size'])) {
            return $query->paginate([
                'page' => $params['page'],
                'list_rows' => $params['page_size']
            ]);
        }
        
        return $query->select();
    }
    
    /**
     * 检查是否重复提交验货任务
     * @param int $orderId 订单ID
     * @param int $orderGoodsId 订单商品ID
     * @return array|null 返回已存在的任务信息，不存在返回null
     */
    private static function checkDuplicateInspectionTask($orderId, $orderGoodsId)
    {
        return Db::table('inspection_task')
            ->where('order_id', $orderId)
            ->where('order_goods_id', $orderGoodsId)
            ->where('deletetime', 'exp', 'IS NULL')
            ->find();
    }
}