<?php

namespace Hura8\Components\Customer\Controller;

use ClientExtend\UserLoyaltyPointCalculation;
use Hura8\Components\Customer\Model\CustomerLoyaltyModel;


class bCustomerLoyaltyController
{

    public static $POINT_NAME = 'điểm';

    protected $point_setting = [];
    protected $point_setting_config_file = ROOT_DIR . "/config/build/customer_point.php";

    protected $level_setting = [];
    protected $level_setting_config_file = ROOT_DIR . "/config/client/customer_level.php";

    protected $level_by = '';// point|total_purchase_value as set by constant CHANGE_CUSTOMER_LEVEL_BY

    /* @var $objUserLoyaltyPointCalculation UserLoyaltyPointCalculation */
    protected $objUserLoyaltyPointCalculation;

    /* @var CustomerLoyaltyModel $objCustomerLoyaltyModel */
    protected $objCustomerLoyaltyModel;


    public function __construct()
    {
        $this->objCustomerLoyaltyModel = new CustomerLoyaltyModel();

        // import settings
        //$new_info_file = "../config/build/customer_point.php" ;
        //$config_file = ROOT_DIR . "/config/build/customer_point.php";
        if(@file_exists($this->point_setting_config_file)) {
            $this->point_setting = include $this->point_setting_config_file;
        }

        // customer level based on point gain
        if( defined("ENABLE_CUSTOMER_POINT") && ENABLE_CUSTOMER_POINT ) {
            if(@file_exists($this->level_setting_config_file)) {
                $this->level_setting = include $this->level_setting_config_file;
            }
        }

        // default is point
        $this->level_by = (defined('CHANGE_CUSTOMER_LEVEL_BY')) ? CHANGE_CUSTOMER_LEVEL_BY : 'point';

        $this->objUserLoyaltyPointCalculation = new UserLoyaltyPointCalculation($this->point_setting);

    }


    public function getPointSettingConfigFile() {
        return $this->point_setting_config_file;
    }

    public function getPointSetting() {
        return $this->point_setting;
    }

    public function getLevelSetting(){
        return $this->level_setting;
    }

    // show estimate cart point
    public function getEstimateCartPoint($cart_value){
        $conversion_rate = (isset($this->point_setting['reward']['buy']['rate'])) ? $this->point_setting['reward']['buy']['rate'] : 0;
        return ($conversion_rate) ? round($cart_value / $conversion_rate) : 0;
    }

    public function getUserPoint($user_id, array $condition, $return_type)
    {
        return $this->objCustomerLoyaltyModel->getUserPoint($user_id, $condition, $return_type);
    }

    // remove rewarded point i.e. reward for successfull order and now order is marked canceled
    public function reclaimRewardedPoint($user_id, $activity_type_tracker){
        // todo:
    }

    public function usePoint($user_id, $use_point, $activity_type, $activity_type_tracker, $reason = '', $point_args = ['order_value' => 0]){
        // no user or no config
        if(!$user_id || !ENABLE_CUSTOMER_POINT) return false;

        $result = $this->objUserLoyaltyPointCalculation->calculateUsePoint($user_id, $use_point, $activity_type, $activity_type_tracker, $point_args);

        $this->pointOp('use', $user_id, $result['use_point'], $activity_type, $activity_type_tracker, $reason);

        return $result;
    }


    public function rewardPoint($user_id, $activity_type, $activity_type_tracker, $reason = '', $point_args = ['order_id' => 0]){
        // no user or no config
        if(!$user_id || !ENABLE_CUSTOMER_POINT) return false;

        $point = $this->objUserLoyaltyPointCalculation->calculateRewardPoint($user_id, $activity_type, $activity_type_tracker, $point_args);

        $this->pointOp('reward', $user_id, $point, $activity_type, $activity_type_tracker, $reason);

        return $point;
    }

    // $operation: reward|use
    // $change_point: positive (reward) or nagative (use)
    protected function pointOp($operation, $user_id, $change_point, $activity_type, $activity_type_tracker, $reason = '') {

        if(!$change_point) return false;

        $reason_prefix = ($operation == 'use') ? 'Sử dụng' : 'Thưởng';
        if($activity_type == 'return') $reason_prefix = 'Hoàn lại';
        $full_reason = join(" ", [$reason_prefix, $change_point, static::$POINT_NAME, ":", $reason]);

        if($operation == 'use') $change_point = -1 * $change_point;

        // security: hash the row to avoid editing point directly in the database
        $hash_value = sha1(join(".", [
            $operation,
            $user_id,
            $change_point,
            $activity_type,
            $activity_type_tracker,
            CURRENT_TIME,
            'ass@ss'
        ]));

        $new_id =  $this->db->insert(
            $this->tb_point ,
            [
                'customer_id' => $user_id ,
                'activity_type' => $activity_type,
                'activity_type_tracker' => $activity_type_tracker ,
                'operation' => $operation,
                'point' => $change_point,
                'create_time' => CURRENT_TIME,
                'reason' => substr($full_reason, 0, 200),
                'referer_url' => substr(REFERER_URL, 0, 150) ,
                'hash_value' => $hash_value ,
            ]
        );

        //update user reward balance
        if($new_id) {
            $this->updateStat($user_id, $change_point);
        }

        return $new_id;
    }

    protected function updateStat($user_id, $changed_point, $changed_order_value=0) {
        return $this->objCustomerLoyaltyModel->updateStat($user_id, $changed_point, $changed_order_value);
    }

    private function calculateLevelByPoint($point) {
        //if the point in between  -> return the lowest level
        $all_level = array_keys($this->level_setting);

        foreach ( $all_level as $level) {
            $next_level = $level + 1;
            if(!in_array($next_level, $all_level)) $next_level = 0;

            if($next_level) {
                if( $point >= $this->level_setting[$level]["point_require"]
                    && $point < $this->level_setting[$next_level]["point_require"] ) {
                    return $level;
                }
            }else{
                if($point >= $this->level_setting[$level]["point_require"]) {
                    return $level;
                }
            }
        }

        return 0;
    }

    private function calculateLevelByOrderValue($aggregate_purchase_value = 0) {

        //if the point in between  -> return the lowest level
        $all_level = array_keys($this->level_setting);

        //tinh hang thanh vien theo so tien tich luy
        foreach ( $all_level as $level ) {
            $next_level = $level + 1;
            if(!in_array($next_level, $all_level)) $next_level = 0;

            if($next_level) {
                if( $aggregate_purchase_value >= $this->level_setting[$level]["total_order_value"] &&
                    $aggregate_purchase_value < $this->level_setting[$next_level]["total_order_value"]
                ) {
                    return $level;
                }
            }else{
                if( $aggregate_purchase_value >= $this->level_setting[$level]["total_order_value"]) {
                    return $level;
                }
            }
        }

        return 0;
    }


}