<?php

namespace App\Services\Pagarme;

use App\Data\Pagarme\Request\PagarmeCustomerRequestData\PagarmeCustomerAddressRequestData;
use App\Data\Pagarme\Request\PagarmeCustomerRequestData\PagarmeCustomerPhonesRequestData\PagarmeCustomerPhoneData;
use App\Data\Pagarme\Request\PagarmeCustomerRequestData\PagarmeCustomerPhonesRequestData\PagarmeCustomerPhonesRequestData;
use App\Data\Pagarme\Request\PagarmeCustomerRequestData\PagarmeCustomerRequestData;
use App\Data\Pagarme\Response\PagarmeCustomerResponseData\PagarmeCustomerAddressResponseData;
use App\Data\Pagarme\Response\PagarmeCustomerResponseData\PagarmeCustomerPhonesResponseData\PagarmeCustomerPhonesResponseData;
use App\Data\Pagarme\Response\PagarmeCustomerResponseData\PagarmeCustomerPhonesResponseData\PagarmePhoneResponseData;
use App\Data\Pagarme\Response\PagarmeCustomerResponseData\PagarmeCustomerResponseData;
use App\Models\Client;
use App\Services\Pagarme\Concerns\SendsPagarmeRequests;
use Illuminate\Support\Str;

class PagarmeCustomerService
{
    use SendsPagarmeRequests;

    public function createCustomerForClient(Client $client, array $data): ?string
    {
        if (! empty($client->external_customer_id)) {
            return $client->external_customer_id;
        }

        $client->loadMissing('user');

        $name  = $client->user?->name ?? $data['name'] ?? 'Cliente';
        $email = $client->user?->email ?? $data['email'] ?? null;
        $code  = $this->ensureCustomerCode($client);

        $document    = $this->onlyDigits($client->document ?? $data['document'] ?? null);
        $documentLen = strlen($document);

        $address = $this->buildAddressData($data);
        $phones  = $this->buildPhones($client->user?->phone ?? $data['phone'] ?? null);

        $customerRequest = new PagarmeCustomerRequestData(
            name:         $name,
            email:        (string) $email,
            document:     $document,
            type:         $documentLen === 14 ? 'company' : 'individual',
            documentType: $documentLen === 14 ? 'CNPJ' : 'CPF',
            code:         $code,
            address:      $address,
            phones:       $phones,
        );

        $raw = $this->pagarmeRequest(
            method: 'POST',
            path: '/customers',
            payload: $customerRequest,
            idempotencyKey: $this->idempotencyKey($client->id),
            errorMessage: 'Erro ao criar cliente no Pagar.me.',
        );

        $customerData = $this->buildCustomerResponse($raw);

        $customerId = $customerData->requireId();

        $client->forceFill([
            'external_customer_id'   => $customerId,
            'external_customer_code' => $code,
        ])->save();

        return $customerId;
    }

    //

    private function buildAddressData(array $data): PagarmeCustomerAddressRequestData
    {
        $line1Parts = array_filter([
            (string) ($data['number'] ?? '0'),
            (string) ($data['address'] ?? ''),
            (string) ($data['district'] ?? ''),
        ], static fn ($value) => $value !== '');

        return new PagarmeCustomerAddressRequestData(
            line1:   implode(', ', $line1Parts),
            line2:   (string) ($data['complement'] ?? $data['instructions'] ?? ''),
            zipCode: $this->onlyDigits($data['zip_code'] ?? null),
            city:    (string) ($data['city'] ?? ''),
            state:   (string) ($data['state'] ?? ''),
            country: (string) ($data['country'] ?? 'BR'),
        );
    }

    private function buildPhones(?string $phone): PagarmeCustomerPhonesRequestData
    {
        $digits = $this->onlyDigits($phone);

        if ($digits === '') {
            return new PagarmeCustomerPhonesRequestData;
        }

        $areaCode = substr($digits, 0, 2);
        $number   = substr($digits, 2);

        if (strlen($digits) <= 2) {
            $areaCode = '';
            $number   = $digits;
        }

        return new PagarmeCustomerPhonesRequestData(
            mobilePhone: new PagarmeCustomerPhoneData(
                countryCode: '55',
                areaCode:    $areaCode,
                number:      $number,
            ),
        );
    }

    private function buildCustomerResponse(array $raw): PagarmeCustomerResponseData
    {
        return new PagarmeCustomerResponseData(
            id:           $raw['id']            ?? null,
            name:         $raw['name']          ?? null,
            email:        $raw['email']         ?? null,
            code:         $raw['code']          ?? null,
            document:     $raw['document']      ?? null,
            documentType: $raw['document_type'] ?? null,
            type:         $raw['type']          ?? null,
            delinquent:   $raw['delinquent']    ?? null,

            address: ! empty($raw['address'])
                ? new PagarmeCustomerAddressResponseData(
                    id:        $raw['address']['id']         ?? null,
                    line1:     $raw['address']['line_1']     ?? null,
                    line2:     $raw['address']['line_2']     ?? null,
                    zipCode:   $raw['address']['zip_code']   ?? null,
                    city:      $raw['address']['city']       ?? null,
                    state:     $raw['address']['state']      ?? null,
                    country:   $raw['address']['country']    ?? null,
                    status:    $raw['address']['status']     ?? null,
                    createdAt: $raw['address']['created_at'] ?? null,
                    updatedAt: $raw['address']['updated_at'] ?? null,
                )
                : null,

            phones: new PagarmeCustomerPhonesResponseData(
                homePhone:   ! empty($raw['phones']['home_phone'])
                    ? new PagarmePhoneResponseData(
                        countryCode: $raw['phones']['home_phone']['country_code'] ?? null,
                        areaCode:    $raw['phones']['home_phone']['area_code'] ?? null,
                        number:      $raw['phones']['home_phone']['number'] ?? null,
                    )
                    : null,
                mobilePhone: ! empty($raw['phones']['mobile_phone'])
                    ? new PagarmePhoneResponseData(
                        countryCode: $raw['phones']['mobile_phone']['country_code'] ?? null,
                        areaCode:    $raw['phones']['mobile_phone']['area_code'] ?? null,
                        number:      $raw['phones']['mobile_phone']['number'] ?? null,
                    )
                    : null,
            ),

            createdAt: $raw['created_at'] ?? null,
            updatedAt: $raw['updated_at'] ?? null,
        );
    }

    private function onlyDigits(?string $value): string
    {
        return preg_replace('/\D+/', '', (string) $value) ?? '';
    }

    // evita criacao duplicada de customer

    private function idempotencyKey(int $clientId, string $suffix = 'customer'): string
    {
        return "client-{$clientId}-{$suffix}";
    }

    private function ensureCustomerCode(Client $client): string
    {
        if (! empty($client->external_customer_code)) {
            return $client->external_customer_code;
        }

        $code = 'client-'.(string) Str::uuid();

        $client->forceFill(['external_customer_code' => $code])->save();

        return $code;
    }
}