<?php

namespace App\Models;

use CodeIgniter\Model;

class VendorInfluencerMappingModel extends Model
{
    protected $table = 'VENDOR_INFLUENCER_MAPPING';
    protected $primaryKey = 'SEQ';
    protected $useAutoIncrement = true;
    protected $returnType = 'array';
    protected $useSoftDeletes = false;
    protected $protectFields = true;
    protected $allowedFields = [
        'VENDOR_SEQ',
        'INFLUENCER_SEQ',
        'REQUEST_TYPE',
        'REQUEST_MESSAGE',
        'RESPONSE_MESSAGE',
        'REQUESTED_BY',
        'APPROVED_BY',
        'REQUEST_DATE',
        'RESPONSE_DATE',
        'EXPIRED_DATE',
        'PARTNERSHIP_START_DATE',
        'PARTNERSHIP_END_DATE',
        'COMMISSION_RATE',
        'SPECIAL_CONDITIONS',
        'IS_ACT',
        'REG_DATE',
        'MOD_DATE',
        'ADD_INFO1',
        'ADD_INFO2',
        'ADD_INFO3'
    ];

    // Dates
    protected $useTimestamps = false;
    protected $dateFormat = 'datetime';
    protected $createdField = 'REG_DATE';
    protected $updatedField = 'MOD_DATE';
    protected $deletedField = '';

    // Validation
    protected $validationRules = [
        'VENDOR_SEQ' => 'required|integer',
        'INFLUENCER_SEQ' => 'required|integer',
        'REQUEST_TYPE' => 'required|in_list[INFLUENCER_REQUEST,VENDOR_INVITE,INFLUENCER_REAPPLY,VENDOR_PROPOSAL]',
        'REQUESTED_BY' => 'required|integer',
        'IS_ACT' => 'required|in_list[Y,N]'
    ];

    protected $validationMessages = [
        'VENDOR_SEQ' => [
            'required' => '벤더사 SEQ는 필수입니다.',
            'integer' => '벤더사 SEQ는 정수여야 합니다.'
        ],
        'INFLUENCER_SEQ' => [
            'required' => '인플루언서 SEQ는 필수입니다.',
            'integer' => '인플루언서 SEQ는 정수여야 합니다.'
        ],
        'REQUEST_TYPE' => [
            'required' => '요청 타입은 필수입니다.',
            'in_list' => '유효하지 않은 요청 타입입니다.'
        ],
        'REQUESTED_BY' => [
            'required' => '요청자는 필수입니다.',
            'integer' => '요청자 SEQ는 정수여야 합니다.'
        ]
    ];

    protected $skipValidation = false;
    protected $cleanValidationRules = true;

    // Callbacks
    protected $allowCallbacks = true;
    protected $beforeInsert = ['beforeInsert'];
    protected $afterInsert = ['afterInsert'];
    protected $beforeUpdate = ['beforeUpdate'];
    protected $afterUpdate = [];
    protected $beforeFind = [];
    protected $afterFind = [];
    protected $beforeDelete = [];
    protected $afterDelete = [];

    // 히스토리 모델
    protected $statusHistoryModel;

    public function __construct()
    {
        parent::__construct();
        $this->statusHistoryModel = new VendorInfluencerStatusHistoryModel();
    }

    /**
     * 삽입 전 처리
     */
    protected function beforeInsert(array $data)
    {
        if (!isset($data['data']['REG_DATE'])) {
            $data['data']['REG_DATE'] = date('Y-m-d H:i:s');
        }
        if (!isset($data['data']['MOD_DATE'])) {
            $data['data']['MOD_DATE'] = date('Y-m-d H:i:s');
        }
        if (!isset($data['data']['IS_ACT'])) {
            $data['data']['IS_ACT'] = 'Y';
        }

        return $data;
    }

    /**
     * 삽입 후 처리 - 초기 상태 히스토리 생성
     */
    protected function afterInsert(array $data)
    {
        $mappingSeq = $data['id'];
        $insertData = $data['data'];

        // 초기 상태를 PENDING으로 설정
        $this->statusHistoryModel->changeStatus(
            $mappingSeq,
            'PENDING',
            $insertData['REQUEST_MESSAGE'] ?? '',
            $insertData['REQUESTED_BY']
        );

        return $data;
    }

    /**
     * 업데이트 전 처리
     */
    protected function beforeUpdate(array $data)
    {
        $data['data']['MOD_DATE'] = date('Y-m-d H:i:s');
        return $data;
    }

    /**
     * 현재 상태와 함께 매핑 정보 조회
     */
    public function getWithCurrentStatus($mappingSeq)
    {
        $builder = $this->builder();
        return $builder->select('VENDOR_INFLUENCER_MAPPING.*, 
                                VENDOR_INFLUENCER_STATUS_HISTORY.STATUS as CURRENT_STATUS,
                                VENDOR_INFLUENCER_STATUS_HISTORY.STATUS_MESSAGE as CURRENT_STATUS_MESSAGE,
                                VENDOR_INFLUENCER_STATUS_HISTORY.CHANGED_DATE as STATUS_CHANGED_DATE')
                      ->join('VENDOR_INFLUENCER_STATUS_HISTORY', 
                             'VENDOR_INFLUENCER_STATUS_HISTORY.MAPPING_SEQ = VENDOR_INFLUENCER_MAPPING.SEQ AND VENDOR_INFLUENCER_STATUS_HISTORY.IS_CURRENT = "Y"')
                      ->where('VENDOR_INFLUENCER_MAPPING.SEQ', $mappingSeq)
                      ->where('VENDOR_INFLUENCER_MAPPING.IS_ACT', 'Y')
                      ->get()
                      ->getRowArray();
    }

    /**
     * 상태 변경 (히스토리 모델 위임)
     */
    public function changePartnershipStatus($mappingSeq, $newStatus, $statusMessage = '', $changedBy = null)
    {
        return $this->statusHistoryModel->changeStatus($mappingSeq, $newStatus, $statusMessage, $changedBy);
    }

    /**
     * 특정 상태의 파트너십 조회
     */
    public function getPartnershipsByStatus($status)
    {
        return $this->statusHistoryModel->getMappingsByStatus($status);
    }

    /**
     * 중복 요청 확인 (특정 벤더사-인플루언서 조합에서 PENDING 상태 확인)
     */
    public function checkExistingPendingRequest($vendorSeq, $influencerSeq)
    {
        $builder = $this->builder();
        return $builder->select('VENDOR_INFLUENCER_MAPPING.SEQ')
                      ->join('VENDOR_INFLUENCER_STATUS_HISTORY', 
                             'VENDOR_INFLUENCER_STATUS_HISTORY.MAPPING_SEQ = VENDOR_INFLUENCER_MAPPING.SEQ AND VENDOR_INFLUENCER_STATUS_HISTORY.IS_CURRENT = "Y"')
                      ->where('VENDOR_INFLUENCER_MAPPING.VENDOR_SEQ', $vendorSeq)
                      ->where('VENDOR_INFLUENCER_MAPPING.INFLUENCER_SEQ', $influencerSeq)
                      ->where('VENDOR_INFLUENCER_STATUS_HISTORY.STATUS', 'PENDING')
                      ->where('VENDOR_INFLUENCER_MAPPING.IS_ACT', 'Y')
                      ->get()
                      ->getRowArray();
    }

    /**
     * 재승인 가능한 파트너십 확인 (TERMINATED 또는 REJECTED 상태)
     */
    public function checkReapplyEligiblePartnership($vendorSeq, $influencerSeq)
    {
        $builder = $this->builder();
        return $builder->select('VENDOR_INFLUENCER_MAPPING.*, VENDOR_INFLUENCER_STATUS_HISTORY.STATUS as CURRENT_STATUS')
                      ->join('VENDOR_INFLUENCER_STATUS_HISTORY', 
                             'VENDOR_INFLUENCER_STATUS_HISTORY.MAPPING_SEQ = VENDOR_INFLUENCER_MAPPING.SEQ AND VENDOR_INFLUENCER_STATUS_HISTORY.IS_CURRENT = "Y"')
                      ->where('VENDOR_INFLUENCER_MAPPING.VENDOR_SEQ', $vendorSeq)
                      ->where('VENDOR_INFLUENCER_MAPPING.INFLUENCER_SEQ', $influencerSeq)
                      ->whereIn('VENDOR_INFLUENCER_STATUS_HISTORY.STATUS', ['TERMINATED', 'REJECTED'])
                      ->where('VENDOR_INFLUENCER_MAPPING.IS_ACT', 'Y')
                      ->orderBy('VENDOR_INFLUENCER_MAPPING.REG_DATE', 'DESC')
                      ->get()
                      ->getRowArray();
    }

    /**
     * 기본 매핑 정보 조회 (조인 없이)
     */
    public function getBasicMapping($mappingSeq)
    {
        return $this->where('SEQ', $mappingSeq)
                   ->where('IS_ACT', 'Y')
                   ->first();
    }

    /**
     * 벤더사-인플루언서 조합의 기존 매핑 조회
     */
    public function getExistingMapping($vendorSeq, $influencerSeq, $excludeStatuses = [])
    {
        $builder = $this->builder();
        $query = $builder->select('VENDOR_INFLUENCER_MAPPING.*, VENDOR_INFLUENCER_STATUS_HISTORY.STATUS as CURRENT_STATUS')
                        ->join('VENDOR_INFLUENCER_STATUS_HISTORY', 
                               'VENDOR_INFLUENCER_STATUS_HISTORY.MAPPING_SEQ = VENDOR_INFLUENCER_MAPPING.SEQ AND VENDOR_INFLUENCER_STATUS_HISTORY.IS_CURRENT = "Y"')
                        ->where('VENDOR_INFLUENCER_MAPPING.VENDOR_SEQ', $vendorSeq)
                        ->where('VENDOR_INFLUENCER_MAPPING.INFLUENCER_SEQ', $influencerSeq)
                        ->where('VENDOR_INFLUENCER_MAPPING.IS_ACT', 'Y');

        if (!empty($excludeStatuses)) {
            $query->whereNotIn('VENDOR_INFLUENCER_STATUS_HISTORY.STATUS', $excludeStatuses);
        }

        return $query->orderBy('VENDOR_INFLUENCER_MAPPING.REG_DATE', 'DESC')
                    ->get()
                    ->getResultArray();
    }

    /**
     * 매핑 비활성화
     */
    public function deactivateMapping($mappingSeq, $reason = '')
    {
        return $this->update($mappingSeq, [
            'IS_ACT' => 'N',
            'ADD_INFO3' => $reason,
            'MOD_DATE' => date('Y-m-d H:i:s')
        ]);
    }

    /**
     * 만료일 설정
     */
    public function setExpiredDate($mappingSeq, $expiredDate)
    {
        return $this->update($mappingSeq, [
            'EXPIRED_DATE' => $expiredDate,
            'MOD_DATE' => date('Y-m-d H:i:s')
        ]);
    }
}