<?php

namespace App\Models\Credit;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Support\Str;

/**
 * 신용평가 조회 이력 모델
 */
class CreditInquiry extends Model
{
    protected $fillable = [
        'tenant_id',
        'inquiry_key',
        'company_key',
        'company_name',
        'ceo_name',
        'company_address',
        'business_type',
        'business_item',
        'establishment_date',
        'nts_status',
        'nts_status_code',
        'nts_tax_type',
        'nts_closure_date',
        'user_id',
        'inquired_at',
        'short_term_overdue_cnt',
        'negative_info_kci_cnt',
        'negative_info_pb_cnt',
        'negative_info_cb_cnt',
        'suspension_info_cnt',
        'workout_cnt',
        'raw_summary',
        'raw_short_term_overdue',
        'raw_negative_info_kci',
        'raw_negative_info_cb',
        'raw_suspension_info',
        'raw_workout_info',
        'raw_company_info',
        'raw_nts_status',
        'status',
        'error_message',
    ];

    protected $casts = [
        'inquired_at' => 'datetime',
        'establishment_date' => 'date',
        'nts_closure_date' => 'date',
        'raw_summary' => 'array',
        'raw_short_term_overdue' => 'array',
        'raw_negative_info_kci' => 'array',
        'raw_negative_info_cb' => 'array',
        'raw_suspension_info' => 'array',
        'raw_workout_info' => 'array',
        'raw_company_info' => 'array',
        'raw_nts_status' => 'array',
        'short_term_overdue_cnt' => 'integer',
        'negative_info_kci_cnt' => 'integer',
        'negative_info_pb_cnt' => 'integer',
        'negative_info_cb_cnt' => 'integer',
        'suspension_info_cnt' => 'integer',
        'workout_cnt' => 'integer',
    ];

    /**
     * 모델 부팅 시 inquiry_key 자동 생성
     */
    protected static function boot()
    {
        parent::boot();

        static::creating(function ($model) {
            if (empty($model->inquiry_key)) {
                $model->inquiry_key = self::generateInquiryKey();
            }
            if (empty($model->inquired_at)) {
                $model->inquired_at = now();
            }
        });
    }

    /**
     * 고유 조회 키 생성
     */
    public static function generateInquiryKey(): string
    {
        return date('Ymd').Str::upper(Str::random(24));
    }

    /**
     * 조회자 관계
     */
    public function user(): BelongsTo
    {
        return $this->belongsTo(\App\Models\User::class);
    }

    /**
     * 총 이슈 건수 계산
     */
    public function getTotalIssueCountAttribute(): int
    {
        return $this->short_term_overdue_cnt
            + $this->negative_info_kci_cnt
            + $this->negative_info_pb_cnt
            + $this->negative_info_cb_cnt
            + $this->suspension_info_cnt
            + $this->workout_cnt;
    }

    /**
     * 이슈 여부 확인
     */
    public function getHasIssueAttribute(): bool
    {
        return $this->total_issue_count > 0;
    }

    /**
     * 포맷된 사업자번호
     */
    public function getFormattedCompanyKeyAttribute(): string
    {
        $key = $this->company_key;
        if (strlen($key) === 10) {
            return substr($key, 0, 3).'-'.substr($key, 3, 2).'-'.substr($key, 5);
        }

        return $key;
    }

    /**
     * 전체 원본 데이터 조합
     */
    public function getAllRawData(): array
    {
        return [
            'companyInfo' => $this->raw_company_info,
            'ntsStatus' => $this->raw_nts_status,
            'summary' => $this->raw_summary,
            'shortTermOverdue' => $this->raw_short_term_overdue,
            'negativeInfoKCI' => $this->raw_negative_info_kci,
            'negativeInfoCB' => $this->raw_negative_info_cb,
            'suspensionInfo' => $this->raw_suspension_info,
            'workoutInfo' => $this->raw_workout_info,
        ];
    }

    /**
     * 국세청 상태가 정상(영업중)인지 확인
     */
    public function isNtsActive(): bool
    {
        return $this->nts_status_code === '01';
    }

    /**
     * 국세청 상태 라벨
     */
    public function getNtsStatusLabelAttribute(): string
    {
        return match ($this->nts_status_code) {
            '01' => '계속사업자',
            '02' => '휴업자',
            '03' => '폐업자',
            default => $this->nts_status ?: '미확인',
        };
    }

    /**
     * API 응답으로부터 모델 생성
     *
     * @param  string  $companyKey  사업자번호
     * @param  array  $apiResult  쿠콘 API 결과
     * @param  array|null  $ntsResult  국세청 API 결과
     * @param  int|null  $userId  조회자 ID
     * @param  int|null  $tenantId  테넌트 ID
     */
    public static function createFromApiResponse(
        string $companyKey,
        array $apiResult,
        ?array $ntsResult = null,
        ?int $userId = null,
        ?int $tenantId = null
    ): self {
        // 요약 정보에서 건수 추출
        $summaryData = $apiResult['summary']['data'] ?? [];
        $creditSummaryList = $summaryData['data']['creditSummaryList'][0]
            ?? $summaryData['creditSummaryList'][0]
            ?? [];

        // 기업 기본정보 추출 (OA08)
        $companyInfoData = $apiResult['companyInfo']['data']['data'] ?? $apiResult['companyInfo']['data'] ?? [];
        $companyName = $companyInfoData['korentrnm'] ?? $companyInfoData['entrpNm'] ?? null;
        $ceoName = $companyInfoData['korreprnm'] ?? $companyInfoData['reprNm'] ?? null;
        $companyAddress = $companyInfoData['addr'] ?? $companyInfoData['address'] ?? null;
        $businessType = $companyInfoData['bizcnd'] ?? $companyInfoData['indutyNm'] ?? null;
        $businessItem = $companyInfoData['bizitm'] ?? $companyInfoData['indutyDetailNm'] ?? null;
        $establishmentDate = null;
        if (! empty($companyInfoData['estbDt']) || ! empty($companyInfoData['estbDate'])) {
            $estbDt = $companyInfoData['estbDt'] ?? $companyInfoData['estbDate'];
            if (strlen($estbDt) === 8) {
                $establishmentDate = substr($estbDt, 0, 4).'-'.substr($estbDt, 4, 2).'-'.substr($estbDt, 6, 2);
            }
        }

        // 국세청 상태 추출
        $ntsStatus = null;
        $ntsStatusCode = null;
        $ntsTaxType = null;
        $ntsClosureDate = null;
        if ($ntsResult && ($ntsResult['success'] ?? false)) {
            $ntsData = $ntsResult['data'] ?? [];
            $ntsStatus = $ntsData['b_stt'] ?? null;
            $ntsStatusCode = $ntsData['b_stt_cd'] ?? null;
            $ntsTaxType = $ntsData['tax_type'] ?? null;
            if (! empty($ntsData['end_dt']) && strlen($ntsData['end_dt']) === 8) {
                $ntsClosureDate = substr($ntsData['end_dt'], 0, 4).'-'.substr($ntsData['end_dt'], 4, 2).'-'.substr($ntsData['end_dt'], 6, 2);
            }
        }

        // 성공/실패 상태 판단
        $successCount = 0;
        $totalCount = 7; // companyInfo 추가
        $errors = [];

        foreach (['companyInfo', 'summary', 'shortTermOverdue', 'negativeInfoKCI', 'negativeInfoCB', 'suspensionInfo', 'workoutInfo'] as $key) {
            if (isset($apiResult[$key]['success']) && $apiResult[$key]['success']) {
                $successCount++;
            } else {
                $errors[] = $key.': '.($apiResult[$key]['error'] ?? 'Unknown error');
            }
        }

        $status = match (true) {
            $successCount === $totalCount => 'success',
            $successCount > 0 => 'partial',
            default => 'failed',
        };

        return self::create([
            'tenant_id' => $tenantId,
            'company_key' => $companyKey,
            'user_id' => $userId,
            'inquired_at' => now(),

            // 기업 기본정보
            'company_name' => $companyName,
            'ceo_name' => $ceoName,
            'company_address' => $companyAddress,
            'business_type' => $businessType,
            'business_item' => $businessItem,
            'establishment_date' => $establishmentDate,

            // 국세청 상태
            'nts_status' => $ntsStatus,
            'nts_status_code' => $ntsStatusCode,
            'nts_tax_type' => $ntsTaxType,
            'nts_closure_date' => $ntsClosureDate,

            // 요약 건수
            'short_term_overdue_cnt' => $creditSummaryList['shorttermOverdueCnt'] ?? 0,
            'negative_info_kci_cnt' => $creditSummaryList['negativeInfoBbCnt'] ?? 0,
            'negative_info_pb_cnt' => $creditSummaryList['negativeInfoPbCnt'] ?? 0,
            'negative_info_cb_cnt' => $creditSummaryList['negativeInfoCbCnt'] ?? 0,
            'suspension_info_cnt' => $creditSummaryList['suspensionInfoCnt'] ?? 0,
            'workout_cnt' => $creditSummaryList['workoutCnt'] ?? 0,

            // 원본 데이터
            'raw_company_info' => $apiResult['companyInfo'] ?? null,
            'raw_nts_status' => $ntsResult,
            'raw_summary' => $apiResult['summary'] ?? null,
            'raw_short_term_overdue' => $apiResult['shortTermOverdue'] ?? null,
            'raw_negative_info_kci' => $apiResult['negativeInfoKCI'] ?? null,
            'raw_negative_info_cb' => $apiResult['negativeInfoCB'] ?? null,
            'raw_suspension_info' => $apiResult['suspensionInfo'] ?? null,
            'raw_workout_info' => $apiResult['workoutInfo'] ?? null,

            // 상태
            'status' => $status,
            'error_message' => $status !== 'success' ? implode('; ', $errors) : null,
        ]);
    }

    /**
     * 스코프: 사업자번호로 검색
     */
    public function scopeByCompanyKey($query, string $companyKey)
    {
        return $query->where('company_key', $companyKey);
    }

    /**
     * 스코프: 기간으로 검색
     */
    public function scopeBetweenDates($query, $startDate, $endDate)
    {
        return $query->whereBetween('inquired_at', [$startDate, $endDate]);
    }

    /**
     * 스코프: 이슈 있는 것만
     */
    public function scopeWithIssues($query)
    {
        return $query->where(function ($q) {
            $q->where('short_term_overdue_cnt', '>', 0)
                ->orWhere('negative_info_kci_cnt', '>', 0)
                ->orWhere('negative_info_pb_cnt', '>', 0)
                ->orWhere('negative_info_cb_cnt', '>', 0)
                ->orWhere('suspension_info_cnt', '>', 0)
                ->orWhere('workout_cnt', '>', 0);
        });
    }
}