<?php

namespace Modules\EcommerceFinance\Services;

use App\Utilities\FinanceLedgerAccountStatus;
use App\Utilities\FinanceLedgerAccountShouldKeep;
use App\Utilities\FinanceLedgerAccountType;
use Illuminate\Support\Facades\DB;
use Illuminate\Validation\ValidationException;

/**
 * 在账户总表中新增一个财务台账账户，并在公司不存在时同步建立公司台账。
 */
class FinanceLedgerAccountCreator
{
    public function create(array $data): array
    {
        $connection = DB::connection((string) config('upstream_mirrors.connection', 'business_mirror'));
        $companyName = $this->text($data['company_name'] ?? '');
        $accountShort = $this->text($data['account_short'] ?? '');
        $accountNo = $this->text($data['account_no'] ?? '');
        $accountType = $this->text($data['account_type'] ?? '');
        $companyPlan = $this->text($data['company_plan'] ?? '');
        $companyFields = [
            'register_place' => $this->nullableText($data['company_register_place'] ?? null),
            'business_type' => $this->nullableText($data['company_business_type'] ?? null),
            'tax_type' => $this->nullableText($data['company_tax_type'] ?? null),
            'status' => $this->nullableText($data['company_status'] ?? null),
            'basic_bank' => $this->nullableText($data['company_basic_bank'] ?? null),
            'basic_account_last4' => $this->nullableText($data['company_basic_account_last4'] ?? null),
            'remark' => $this->nullableText($data['company_remark'] ?? null),
        ];
        $openingDate = (string) ($data['opening_date'] ?? now()->toDateString());
        $openingBalance = round((float) ($data['opening_balance'] ?? 0), 2);
        $status = FinanceLedgerAccountStatus::normalize((string) ($data['status'] ?? ''));
        $accountShouldKeep = FinanceLedgerAccountShouldKeep::normalize(
            (string) ($data['account_should_keep'] ?? ''),
        );
        $accountLast4 = FinanceLedgerAccountType::last4($accountType, $accountNo);
        $normal = $status === FinanceLedgerAccountStatus::NORMAL;
        $now = now();

        return $connection->transaction(function () use (
            $connection,
            $companyName,
            $accountShort,
            $accountNo,
            $accountType,
            $companyPlan,
            $companyFields,
            $openingDate,
            $openingBalance,
            $status,
            $accountShouldKeep,
            $accountLast4,
            $normal,
            $data,
            $now,
        ): array {
            if ($connection->table('fin_accounts')->where('account_short', $accountShort)->exists()) {
                throw ValidationException::withMessages([
                    'account_short' => '账户简称已存在，请改用其他简称或直接编辑现有账户。',
                ]);
            }

            $company = $connection->table('fin_companies')->where('name', $companyName)->first(['id']);
            $companyCreated = $company === null;
            $companyUpdated = false;
            if ($companyCreated) {
                $connection->table('fin_companies')->insert([
                    'name' => $companyName,
                    ...$companyFields,
                    'created_at' => $now,
                    'updated_at' => $now,
                ]);
            } else {
                $providedCompanyFields = array_filter(
                    $companyFields,
                    static fn (?string $value): bool => $value !== null,
                );
                if ($providedCompanyFields !== []) {
                    $connection->table('fin_companies')
                        ->where('id', $company->id)
                        ->update([
                            ...$providedCompanyFields,
                            'updated_at' => $now,
                        ]);
                    $companyUpdated = true;
                }
            }

            $accountId = $connection->table('fin_accounts')->insertGetId([
                'company_name' => $companyName,
                'account_short' => $accountShort,
                'region' => $this->nullableText($data['region'] ?? null),
                'account_no' => $accountNo !== '' ? $accountNo : null,
                'bank_name' => $this->nullableText($data['bank_name'] ?? null),
                'bank_city_branch' => $this->nullableText($data['bank_city_branch'] ?? null),
                'account_type' => $accountType !== '' ? $accountType : null,
                'company_plan' => $companyPlan !== '' ? $companyPlan : null,
                'account_should_keep' => $accountShouldKeep !== '' ? $accountShouldKeep : null,
                'account_last4' => $accountLast4,
                'current_balance' => $openingBalance,
                'blocked_amount' => $normal ? 0 : $openingBalance,
                'daily_available' => $normal ? $openingBalance : 0,
                'created_at' => $now,
                'updated_at' => $now,
            ]);

            $connection->table('fin_account_opening')->insert([
                'account_short' => $accountShort,
                'opening_date' => $openingDate,
                'opening_balance' => $openingBalance,
                'remark' => '新增账户期初',
                'created_at' => $now,
                'updated_at' => $now,
            ]);

            $connection->table('fin_daily_flows')->insert([
                'flow_date' => $openingDate,
                'company_name' => $companyName,
                'account_short' => $accountShort,
                'opening_balance' => $openingBalance,
                'inflow' => 0,
                'outflow' => 0,
                'closing_balance' => $openingBalance,
                'remark' => '新增账户期初',
                'created_at' => $now,
                'updated_at' => $now,
            ]);

            if (! $normal) {
                $connection->table('fin_account_statuses')->insert([
                    'account_short' => $accountShort,
                    'status' => $status,
                    'updated_by' => (string) user()->name,
                    'created_at' => $now,
                    'updated_at' => $now,
                ]);
            }

            return [
                'id' => (int) $accountId,
                'company_name' => $companyName,
                'account_short' => $accountShort,
                'company_created' => $companyCreated,
                'company_updated' => $companyUpdated,
                'status' => $status,
                'opening_date' => $openingDate,
                'opening_balance' => $openingBalance,
            ];
        });
    }

    private function text(mixed $value): string
    {
        return preg_replace('/\s+/u', ' ', trim((string) $value)) ?? trim((string) $value);
    }

    private function nullableText(mixed $value): ?string
    {
        $text = $this->text($value);

        return $text !== '' ? $text : null;
    }
}