<?php
namespace Modules\Agents\Services;

use Illuminate\Support\Arr;
use Modules\Agents\Entities\Customer;
use App\Models\Agent;
use App\Models\AgentUser;
use Carbon\Carbon;

class AgentService
{
    const DISTANCE_DAY_DEFAULT = 15;
    protected $modelCustomer;
    protected $modelAgent;
    protected $modelAgentUser;

    /**
     * Summary of __construct
     * @param \Modules\Agents\Entities\Customer $modelCustomer
     * @param \App\Models\Agent $modelAgent
     * @param \App\Models\AgentUser $modelAgentUser
     */
    public function __construct(
        Customer $modelCustomer,
        Agent $modelAgent,
        AgentUser $modelAgentUser
    ) {
        $this->modelCustomer = $modelCustomer;
        $this->modelAgent = $modelAgent;
        $this->modelAgentUser = $modelAgentUser;
    }

    /**
     * Summary of createCustomer
     * @param array $input
     * @return array
     */
    public function createCustomer($input)
    {
        // format data input
        $dataInput = $this->formatCreateCustomer($input);
        // check agent user with code input
        $checkAgentUser = $this->modelAgentUser->where('code', $dataInput['agents_code'])->first();

        $now = Carbon::now();

        if (empty($checkAgentUser)) {
            return array('status' => false, 'msg' => $this->getMessageReturn('no_data_agent'));
        }
        $agentId = $checkAgentUser->agent_id;

        \DB::beginTransaction();
        try {
            $dataInsert = Arr::except($dataInput, ['agents_code']); // remove agents_code array

            $dateNotToo = Carbon::now()->subDays(self::DISTANCE_DAY_DEFAULT);
            $customerAgent = $this->modelCustomer->where('agent_id', $agentId)->where('phone', $dataInput['phone'])->latest()->first();

            // tìm các dữ liệu từ ngày hiện tại trừ đi không được quá 15 ngày
            $customerAgentAll = $this->modelCustomer->where('phone', $dataInput['phone'])->where('agent_id', '<>', $agentId)->where('created_at', '>=', $dateNotToo)->latest()->first();
            $dataInsert['created_at'] = now();

            if (!empty($customerAgentAll)) {
                // chưa quá 15 ngày thì lấy cái agent_id cũ, đang trực thuộc
                $dataInsert['agent_id'] = $customerAgentAll->agent_id;
                $result = $this->modelCustomer->insert($dataInsert);
            } else {
                // quá 15 ngày thì lấy agent_id check ra từ mã đại lý
                $dataInsert['agent_id'] = $agentId;
                $result = $this->modelCustomer->insert($dataInsert);
                // nếu agent id cũ != cái hiện tại check
                $this->modelCustomer->where('phone', $dataInput['phone'])->where('agent_id', '<>', $agentId)->delete();

            }

            \DB::commit();
            return ['status' => true, 'msg' => $this->getMessageReturn('success_insert_customer')];

        } catch (\Exception $e) {
            \DB::rollBack();
        }
        return ['status' => false, 'msg' => $this->getMessageReturn('failed_insert')];
    }
    /**
     * Summary of myCustomer
     * @param array $input
     * @return array
     */
    public function myCustomer($input)
    {
        $listCustomer = [];
        $finalAgentData = [];
        $myAgent = $this->modelAgentUser->where('user_id', auth()->user()->id)->latest()->first();
        if (empty($myAgent) || empty($myAgent->agent_id)) {
            return ['status' => false, 'msg' => $this->getMessageReturn('no_data_agent')];
        }
        $agentId = $myAgent->agent_id;
        $queryAgent = $this->modelCustomer->where('agent_id', $agentId);
        if (!empty($input['start_date']) && !empty($input['end_date'])) {
            $startDate = Carbon::createFromFormat('Y-m-d', $input['start_date']);
            $endDate = Carbon::createFromFormat('Y-m-d', $input['end_date'])->addDay();

            $queryAgent->whereBetween('created_at', [$startDate->toDateString(), $endDate->toDateString()]);
        }
        if (!empty($input['keyword'])) {
            $queryAgent->where('name', 'LIKE', '%' . $input['keyword'] . '%')
                ->orWhere('phone', 'LIKE', '%' . $input['keyword'] . '%')
                ->orWhere('email', 'LIKE', '%' . $input['keyword'] . '%');
            ;
        }
        // dd($queryAgent->toSql(),$queryAgent->getBindings());
        $listCustomer = $queryAgent->orderBy('created_at', 'desc')->get();
        if (!empty($listCustomer)) {
            foreach ($listCustomer as $listC) {
                $finalAgentData[] = [
                    'id' => $listC->id ?? '',
                    'guest_name' => $listC->name ?? '',
                    'phone' => $listC->phone ?? '',
                    'email' => $listC->email ?? '',
                    'grade' => $listC->grade ?? '',
                    'date_receive' => $listC->created_at ?? '',
                    'message' => $listC->msg ?? ''
                ];
            }
        }
        return ['status' => true, 'data' => $finalAgentData, 'msg' => $this->getMessageReturn('success')];
    }
    /**
     * Summary of listAgentOfGeneral
     * @param mixed $input
     * @return array
     */
    public function listAgentOfGeneral($input)
    {
        $data = [];
        $myAgent = $this->modelAgentUser->where('user_id', auth()->user()->id)->latest()->first();

        if (empty($myAgent) || empty($myAgent->agent_id)) {
            return ['status' => false, 'msg' => $this->getMessageReturn('no_data_agent')];
        } else {
            $myAgentInfo = $this->modelAgent->find($myAgent->agent_id);
            if (empty($myAgentInfo)) {
                return ['status' => false, 'msg' => $this->getMessageReturn('no_agent')];
            }
        }
        $agentId = $myAgentInfo->id;
        $myAgentDown = $this->modelAgentUser->byAgentRoot($agentId)->joinAgent();

        if (!empty($input['start_date']) && !empty($input['end_date'])) {
            $startDate = Carbon::createFromFormat('Y-m-d', $input['start_date']);
            $endDate = Carbon::createFromFormat('Y-m-d', $input['end_date'])->addDay();

            $myAgentDown->betweenDates($startDate->toDateString(), $endDate->toDateString());
        }
        if (!empty($input['keyword'])) {
            $myAgentDown->searchAgentName($input['keyword']);
        }
        if (!empty($input['grant'])) {
            $myAgentDown->onlyGrant($input['grant']);
        }
        $listAgentGet = $myAgentDown->get();
        if (!empty($listAgentGet)) {
            $listAgentById = [];
            foreach ($listAgentGet as $kAgent) {
                // get parent id by path
                $kAgent->grant_parent_id = $this->getParentAgent($kAgent->parent_path);
                $listAgentById[$kAgent->agent_id] = $kAgent;
            }
        }
        $finalDataTemp = [];
        if (!empty($listAgentById)) {
            foreach ($listAgentById as $vByAgent) {

                if (!empty($listAgentById[$vByAgent->grant_parent_id])) {
                    $agentParent = $listAgentById[$vByAgent->grant_parent_id];
                    $upGrant = $agentParent->code ?? null;
                }
                if ($agentId == $vByAgent->agent_id)
                    continue; // skip agent root

                if (!empty($input['up_grant'])) { // if existing up_geant
                    if ($upGrant != $input['up_grant'])
                        continue; // skip
                }

                $finalDataTemp[] = [
                    'id' => $vByAgent->id ?? '',
                    'name' => $vByAgent->agent_name ?? '',
                    'agents_code' => $vByAgent->code ?? '',
                    'created_date' => $vByAgent->created_at ?? '',
                    'phone' => $vByAgent->agent_phone ?? '',
                    'email' => $vByAgent->agent_email ?? '',
                    'grant' => $vByAgent->grant ?? '',
                    'up_grant' => $upGrant ?? ''
                ];
            }
        }
        $data = $finalDataTemp;
        return ['status' => true, 'data' => $data, 'msg' => $this->getMessageReturn('success')];
    }
    /**
     * Summary of getChildAgent
     * @param mixed $input
     * @return array
     */
    public function getParentAgent($parentPath)
    {
        $parts = explode('-', $parentPath);

        // remove element null
        $parts = array_filter($parts, fn($part) => $part !== '');

        if (count($parts) == 1) {
            return min($parts);
        } else {
            return $parts[count($parts) - 1] ?? null;
        }
    }
    /**
     * Summary of myAgentList
     * @param mixed $input
     * @return array
     */
    public function myAgentList($input)
    {
        $data = [];
        //get data general
        $myAgent = $this->modelAgentUser->where('user_id', auth()->user()->id)->latest()->first();

        if (empty($myAgent) || empty($myAgent->agent_id)) {
            return ['status' => false, 'msg' => $this->getMessageReturn('no_data_agent')];
        } else {
            $myAgentInfo = $this->modelAgent->find($myAgent->agent_id);
            if (empty($myAgentInfo)) {
                return ['status' => false, 'msg' => $this->getMessageReturn('no_agent')];
            }
        }
        $agentId = $myAgentInfo->id;
        //init query
        $myAgentDown = $this->modelAgentUser->byParentPath($agentId)->joinAgent();

        //condition startdate & enddate
        if (!empty($input['start_date']) && !empty($input['end_date'])) {
            $startDate = Carbon::createFromFormat('Y-m-d', $input['start_date']);
            $endDate = Carbon::createFromFormat('Y-m-d', $input['end_date'])->addDay();

            $myAgentDown->betweenDates($startDate->toDateString(), $endDate->toDateString());
        }
        //condition keyword search
        if (!empty($input['keyword'])) {
            $myAgentDown->searchAgentName($input['keyword']);
        }
        if (!empty($input['grant'])) {
            $myAgentDown->onlyGrant($input['grant']);
        }
        //execute query get list
        $listAgentGet = $myAgentDown->get();
        $finalData = [];
        if (!empty($listAgentGet)) {
            $listAgentById = [];
            //array by agent_id and get parent agent
            foreach ($listAgentGet as $kAgent) {
                // get parent id by path
                $kAgent->grant_parent_id = $this->getParentAgent($kAgent->parent_path);
                $listAgentById[$kAgent->agent_id] = $kAgent;
            }
            foreach ($listAgentGet as $vAgent) {
                if (!empty($listAgentById[$vAgent->grant_parent_id])) {
                    $agentParent = $listAgentById[$vAgent->grant_parent_id];
                    $upGrant = $agentParent->code ?? null;
                }
                if (!empty($input['up_grant'])) { // if existing up_geant
                    if ($upGrant != $input['up_grant'])
                        continue; // skip
                }
                // lay danh sach 2 con cua parent
                $processPath = $this->processParentPath($agentId, $vAgent->parent_path);
                if (!empty($processPath) && in_array($vAgent->agent_id, $processPath)) {
                    // $finalData[] = $vAgent;
                    $finalData[] = [
                        'id' => $vAgent->id ?? '',
                        'name' => $vAgent->agent_name ?? '',
                        'agents_code' => $vAgent->code ?? '',
                        'created_date' => $vAgent->created_at ?? '',
                        'phone' => $vAgent->agent_phone ?? '',
                        'email' => $vAgent->agent_email ?? '',
                        'grant' => $vAgent->grant ?? '',
                        'up_grant' => $upGrant ?? ''
                    ];
                }
            }
        }
        $data = $finalData;
        return ['status' => true, 'data' => $data, 'msg' => $this->getMessageReturn('success')];
    }
    /**
     * Summary of processPath
     * @param mixed $parentPath
     * @param mixed $agentId
     * @return array
     */
    public function processParentPath($agentId, $parentPath)
    {

        // find index agentId
        $position = strpos($parentPath, '-' . $agentId . '-');

        if ($position !== false) {
            // cat chuoi tu vi tri ngay sau agentId
            $substring = substr($parentPath, $position + strlen('-' . $agentId . '-'));
            if (empty($substring)) {
                return [];
            }
            // tach chuoi thanh cac mang phan tu
            $numbers = explode('-', trim($substring, '-'));

            // lay 2 mang dau tien sau agentId
            $result = array_slice($numbers, 0, 2);

            // ghep lai thanh chuoi
            // $final_path = '-' . implode('-', $result) . '-';
            $final_path = $result;
        } else {
            return [];
        }

        return $final_path;
    }
    /**
     * Summary of formatCreateCustomer
     * @param array $data
     * @return array
     */
    public function formatCreateCustomer($data)
    {
        $format = [];
        if (!empty($data['agents_code'])) {
            $format['agents_code'] = $data['agents_code'];
        }
        if (!empty($data['guest_name'])) {
            $format['name'] = $data['guest_name'];
        }
        if (!empty($data['phone'])) {
            $format['phone'] = $data['phone'];
        }
        if (!empty($data['email'])) {
            $format['email'] = $data['email'];
        }
        if (!empty($data['grade'])) {
            $format['grade'] = $data['grade'];
        }
        if (!empty($data['grade'])) {
            $format['grade'] = $data['grade'];
        }
        if (!empty($data['message'])) {
            $format['msg'] = $data['message'];
        }
        return $format;
    }
    /**
     * Summary of getMessageReturn
     * @param mixed $errorKey
     * @return array 
     */
    public function getMessageReturn($errorKey)
    {
        $msgArr = [
            'no_data_agent' => 'Đại lý không tồn tại.',
            'success_insert_customer' => 'Thêm khách hàng thành công.',
            'failed_insert' => 'Thêm khách hàng thành công.',
            'success' => 'Load data thành công.',
            'no_agent' => 'Không tìm thấy đại lý.',
        ];
        return $msgArr[$errorKey] ?? "Không có dữ liệu.";
    }
}