<?php

namespace App\Models;

use CodeIgniter\Model;

class VendorInfluencerPartnershipModel extends Model
{
    protected $table = 'VENDOR_INFLUENCER_PARTNERSHIP';
    protected $primaryKey = 'SEQ';
    protected $useAutoIncrement = true;
    protected $returnType = 'array';
    protected $useSoftDeletes = false;
    protected $protectFields = true;
    protected $allowedFields = [
        'VENDOR_SEQ',
        'INFLUENCER_SEQ',
        'STATUS',
        'REQUEST_TYPE',
        'REQUEST_MESSAGE',
        'RESPONSE_MESSAGE',
        'COMMISSION_RATE',
        'SPECIAL_CONDITIONS',
        'REQUESTED_BY',
        'PROCESSED_BY',
        'REQUEST_DATE',
        'RESPONSE_DATE',
        'PARTNERSHIP_START_DATE',
        'PARTNERSHIP_END_DATE',
        'IS_ACTIVE',
        'CREATED_AT',
        'UPDATED_AT'
    ];

    // Dates
    protected $useTimestamps = false;
    protected $dateFormat = 'datetime';
    protected $createdField = 'CREATED_AT';
    protected $updatedField = 'UPDATED_AT';
    protected $deletedField = '';

    // Validation
    protected $validationRules = [
        'VENDOR_SEQ' => 'required|integer',
        'INFLUENCER_SEQ' => 'required|integer',
        'STATUS' => 'required|in_list[PENDING,APPROVED,REJECTED,TERMINATED]',
        'REQUEST_TYPE' => 'required|in_list[NEW,REAPPLY]',
        'REQUESTED_BY' => 'required|integer',
        'IS_ACTIVE' => '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.'
        ],
        'STATUS' => [
            'required' => '상태는 필수입니다.',
            'in_list' => '유효하지 않은 상태입니다.'
        ],
        'REQUEST_TYPE' => [
            'required' => '요청 타입은 필수입니다.',
            'in_list' => '유효하지 않은 요청 타입입니다.'
        ],
        'REQUESTED_BY' => [
            'required' => '요청자 SEQ는 필수입니다.',
            'integer' => '요청자 SEQ는 정수여야 합니다.'
        ],
        'IS_ACTIVE' => [
            'required' => 'IS_ACTIVE는 필수입니다.',
            'in_list' => 'IS_ACTIVE는 Y 또는 N이어야 합니다.'
        ]
    ];

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

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

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

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

    /**
     * 벤더사의 인플루언서 요청 목록 조회
     */
    public function getInfluencerRequestsForVendor($vendorSeq, $filters = [])
    {
        $builder = $this->select('
            VENDOR_INFLUENCER_PARTNERSHIP.*,
            VENDOR_INFLUENCER_PARTNERSHIP.STATUS as CURRENT_STATUS,
            VENDOR_INFLUENCER_PARTNERSHIP.REQUEST_TYPE as ADD_INFO1,
            VENDOR_INFLUENCER_PARTNERSHIP.PARTNERSHIP_END_DATE as ADD_INFO3,
            USER_LIST.NAME as INFLUENCER_NAME,
            USER_LIST.NICK_NAME as INFLUENCER_NICKNAME,
            USER_LIST.EMAIL as INFLUENCER_EMAIL,
            USER_LIST.PHONE as INFLUENCER_PHONE,
            USER_LIST.SNS_TYPE as SNS_TYPE,
            USER_LIST.SNS_LINK_ID as SNS_LINK_ID
        ')
        ->join('USER_LIST', 'USER_LIST.SEQ = VENDOR_INFLUENCER_PARTNERSHIP.INFLUENCER_SEQ', 'left')
        ->where('VENDOR_INFLUENCER_PARTNERSHIP.VENDOR_SEQ', $vendorSeq)
        ->where('VENDOR_INFLUENCER_PARTNERSHIP.IS_ACTIVE', 'Y');

        // 필터 적용
        if (!empty($filters['status'])) {
            $builder->where('VENDOR_INFLUENCER_PARTNERSHIP.STATUS', $filters['status']);
        }

        if (!empty($filters['keyword'])) {
            $builder->groupStart()
                   ->like('USER_LIST.NAME', $filters['keyword'])
                   ->orLike('USER_LIST.NICK_NAME', $filters['keyword'])
                   ->orLike('USER_LIST.EMAIL', $filters['keyword'])
                   ->groupEnd();
        }

        $results = $builder->orderBy('VENDOR_INFLUENCER_PARTNERSHIP.CREATED_AT', 'DESC')
                          ->get()
                          ->getResultArray();

        // PHP에서 SNS 채널 정보를 JSON 형식으로 변환
        foreach ($results as &$row) {
            // SNS 채널 정보를 JSON 배열로 변환
            $snsChannels = [];
            if (!empty($row['SNS_TYPE']) && !empty($row['SNS_LINK_ID'])) {
                $snsChannels[] = [
                    'platform' => strtolower($row['SNS_TYPE']),
                    'handle' => $row['SNS_LINK_ID']
                ];
            }
            $row['influencerSnsChannels'] = json_encode($snsChannels);
        }

        return $results;
    }

    /**
     * 인플루언서의 벤더사 검색
     */
    public function searchVendorsForInfluencer($influencerSeq, $filters = [])
    {
        $builder = $this->db->table('VENDOR_LIST')
            ->select('
                VENDOR_LIST.*,
                VIP.STATUS as PARTNERSHIP_STATUS,
                VIP.REQUEST_TYPE as PARTNERSHIP_REQUEST_TYPE,
                VIP.COMMISSION_RATE as CURRENT_COMMISSION_RATE,
                VIP.SPECIAL_CONDITIONS as CURRENT_SPECIAL_CONDITIONS,
                VIP.CREATED_AT as PARTNERSHIP_DATE
            ')
            ->join('VENDOR_INFLUENCER_PARTNERSHIP VIP', 
                   "VIP.VENDOR_SEQ = VENDOR_LIST.SEQ AND VIP.INFLUENCER_SEQ = {$influencerSeq} AND VIP.IS_ACTIVE = 'Y'", 
                   'left')
            ->where('VENDOR_LIST.IS_ACT', 'Y');

        // 필터 적용
        if (!empty($filters['keyword'])) {
            $builder->like('VENDOR_LIST.COMPANY_NAME', $filters['keyword']);
        }

        if (!empty($filters['category'])) {
            $builder->where('VENDOR_LIST.CATEGORY', $filters['category']);
        }

        return $builder->orderBy('VENDOR_LIST.COMPANY_NAME', 'ASC')
                      ->get()
                      ->getResultArray();
    }

    /**
     * 파트너십 요청 생성
     */
    public function createPartnershipRequest($data)
    {
        // 기존 활성 파트너십 비활성화
        $this->deactivateExistingPartnership($data['VENDOR_SEQ'], $data['INFLUENCER_SEQ']);

        // 새 요청 생성
        return $this->insert($data);
    }

    /**
     * 파트너십 승인 처리
     */
    public function approvePartnership($partnershipSeq, $processedBy, $responseMessage = '')
    {
        $updateData = [
            'STATUS' => 'APPROVED',
            'PROCESSED_BY' => $processedBy,
            'RESPONSE_MESSAGE' => $responseMessage,
            'RESPONSE_DATE' => date('Y-m-d H:i:s'),
            'PARTNERSHIP_START_DATE' => date('Y-m-d H:i:s')
        ];

        return $this->update($partnershipSeq, $updateData);
    }

    /**
     * 파트너십 거부 처리
     */
    public function rejectPartnership($partnershipSeq, $processedBy, $responseMessage = '')
    {
        $updateData = [
            'STATUS' => 'REJECTED',
            'PROCESSED_BY' => $processedBy,
            'RESPONSE_MESSAGE' => $responseMessage,
            'RESPONSE_DATE' => date('Y-m-d H:i:s')
        ];

        return $this->update($partnershipSeq, $updateData);
    }

    /**
     * 파트너십 해지 처리
     */
    public function terminatePartnership($partnershipSeq, $processedBy, $responseMessage = '')
    {
        $updateData = [
            'STATUS' => 'TERMINATED',
            'PROCESSED_BY' => $processedBy,
            'RESPONSE_MESSAGE' => $responseMessage,
            'RESPONSE_DATE' => date('Y-m-d H:i:s'),
            'PARTNERSHIP_END_DATE' => date('Y-m-d H:i:s')
        ];

        return $this->update($partnershipSeq, $updateData);
    }

    /**
     * 기존 파트너십 비활성화 (재신청 시 사용)
     */
    protected function deactivateExistingPartnership($vendorSeq, $influencerSeq)
    {
        return $this->where('VENDOR_SEQ', $vendorSeq)
                   ->where('INFLUENCER_SEQ', $influencerSeq)
                   ->where('IS_ACTIVE', 'Y')
                   ->set(['IS_ACTIVE' => 'N'])
                   ->update();
    }

    /**
     * 현재 활성 파트너십 조회
     */
    public function getActivePartnership($vendorSeq, $influencerSeq)
    {
        return $this->where('VENDOR_SEQ', $vendorSeq)
                   ->where('INFLUENCER_SEQ', $influencerSeq)
                   ->where('IS_ACTIVE', 'Y')
                   ->first();
    }

    /**
     * 벤더사 통계 조회
     */
    public function getVendorStats($vendorSeq)
    {
        $result = $this->select('STATUS, COUNT(*) as count')
                      ->where('VENDOR_SEQ', $vendorSeq)
                      ->where('IS_ACTIVE', 'Y')
                      ->groupBy('STATUS')
                      ->get()
                      ->getResultArray();

        $stats = [
            'pending' => 0,
            'approved' => 0,
            'rejected' => 0,
            'terminated' => 0,
            'total' => 0
        ];

        foreach ($result as $row) {
            $status = strtolower($row['STATUS']);
            $stats[$status] = (int)$row['count'];
            $stats['total'] += (int)$row['count'];
        }

        return $stats;
    }
}