<?php

namespace App\Services\Pagarme;

use App\Models\Provider;
use Carbon\Carbon;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Str;

class PagarmeRecipientService
{
    public function createRecipientForProvider(Provider $provider, array $data): string
    {
        if (! empty($provider->recipient_id)) {
            return $provider->recipient_id;
        }

        $bankAccountData                = $data['recipient_default_bank_account'];
        $bankAccountData['holder_name'] = $this->normalizeBankAccountHolderName($bankAccountData['holder_name']);
        $metadata                       = $data['recipient_metadata'] ?? [];
        $paymentMode                    = $data['recipient_payment_mode'];
        $recipientType                  = $data['recipient_type'] ?? 'individual';

        $addressParts  = $this->extractAddressParts($data);
        $monthlyIncome = isset($data['monthly_income']) ? (int) $data['monthly_income'] : 1000;
        $occupation    = $data['professional_occupation'] ?? 'autonomo';

        $payload = $this->filterFilledRecursive([
            'code' => $this->buildRecipientCode($provider, $data),

            'register_information' => [
                'name'                    => $data['recipient_name'],
                'email'                   => $data['recipient_email'],
                'document'                => preg_replace('/\D+/', '', $data['recipient_document']),
                'type'                    => $recipientType,
                'birthdate'               => $this->formatBirthdate($data['birth_date'] ?? null),
                'monthly_income'          => $monthlyIncome,
                'professional_occupation' => $occupation,
                'phone_numbers'           => $this->buildPhoneNumbers($data['phone'] ?? null),

                'address' => [
                    'street'          => $data['address'],
                    'complementary'   => $addressParts['complementary'],
                    'street_number'   => $addressParts['street_number'],
                    'neighborhood'    => $addressParts['neighborhood'],
                    'city'            => $data['city'] ?? null,
                    'state'           => $data['state'] ?? null,
                    'zip_code'        => preg_replace('/\D+/', '', $data['zip_code']),
                    'reference_point' => $addressParts['reference_point'],
                ],
            ],

            'default_bank_account' => [
                'holder_name'         => $bankAccountData['holder_name'],
                'holder_type'         => $bankAccountData['holder_type'],
                'holder_document'     => preg_replace('/\D+/', '', $bankAccountData['holder_document']),
                'bank'                => $bankAccountData['bank'],
                'branch_number'       => $bankAccountData['branch_number'],
                'branch_check_digit'  => $bankAccountData['branch_check_digit'] ?? null,
                'account_number'      => $bankAccountData['account_number'],
                'account_check_digit' => $bankAccountData['account_check_digit'],
                'type'                => $bankAccountData['type'],
            ],

            'transfer_settings' => [
                'transfer_enabled'  => false,
                'transfer_interval' => 'Daily',
                'transfer_day'      => 0,
            ],

            'automatic_anticipation_settings' => [
                'enabled' => false,
            ],
        ]);

        $endpoint = $this->pagarmeUrl('/recipients');

        PagarmeHttpLogger::logRequest('POST', $endpoint, $payload);

        $response = $this->pagarmeRequest($provider->id)
            ->post($endpoint, $payload);

        if ($response->failed()) {
            Log::channel('pagarme')->error('Pagar.me recipient creation failed', [
                'status'  => $response->status(),
                'body'    => $response->json() ?? $response->body(),
                'payload' => $payload,
            ]);

            throw new \RuntimeException('Erro ao criar recebedor no Pagar.me.');
        }

        $recipientData = $response->json();

        $recipientId = $recipientData['id'] ?? null;

        if (! $recipientId) {
            Log::channel('pagarme')->error('Pagar.me recipient creation returned empty id', [
                'response' => $recipientData,
            ]);

            throw new \RuntimeException('Pagar.me recipient creation returned an empty id.');
        }

        $provider->forceFill([
            'recipient_id'                   => $recipientId,
            'recipient_name'                 => $data['recipient_name'],
            'recipient_email'                => $data['recipient_email'],
            'recipient_description'          => $data['recipient_description'],
            'recipient_document'             => $data['recipient_document'],
            'recipient_type'                 => $recipientType,
            'recipient_code'                 => $data['recipient_code'],
            'recipient_payment_mode'         => $paymentMode,
            'recipient_default_bank_account' => $bankAccountData,

            'recipient_transfer_settings' => [
                'transfer_enabled'  => false,
                'transfer_interval' => 'daily',
                'transfer_day'      => 0,
            ],

            'recipient_automatic_anticipation_settings' => [
                'enabled' => false,
            ],

            'recipient_metadata' => $metadata,
        ])->save();

        return $recipientId;
    }

    public function updateDefaultBankAccount(Provider $provider, array $bankAccountData): Provider
    {
        if (empty($provider->recipient_id)) {
            throw new \InvalidArgumentException('Prestador precisa ter recipient_id do Pagar.me para atualizar a conta bancaria.');
        }

        $bankAccountData                = $this->normalizeBankAccountPayload($bankAccountData);
        $bankAccountData['holder_name'] = $this->normalizeBankAccountHolderName($bankAccountData['holder_name']);

        $payload = [
            'bank_account' => $this->filterFilledRecursive($bankAccountData),
        ];

        $endpoint = $this->pagarmeUrl("/recipients/{$provider->recipient_id}/default-bank-account");

        PagarmeHttpLogger::logRequest('PATCH', $endpoint, $payload);

        $response = $this->pagarmeRequest($provider->id, 'default-bank-account-'.sha1(json_encode($payload)))
            ->patch($endpoint, $payload);

        if ($response->failed()) {
            Log::channel('pagarme')->error('Pagar.me recipient bank account update failed', [
                'provider_id'  => $provider->id,
                'recipient_id' => $provider->recipient_id,
                'status'       => $response->status(),
                'body'         => $response->json() ?? $response->body(),
                'payload'      => $payload,
            ]);

            throw new \RuntimeException('Erro ao atualizar conta bancaria do recebedor no Pagar.me.');
        }

        $recipientData = $response->json();

        $provider->forceFill([
            'recipient_default_bank_account' => $recipientData['default_bank_account'] ?? $bankAccountData,
        ])->save();

        return $provider->fresh();
    }

    //

    private function idempotencyKey(int $providerId, string $suffix = 'recipient'): string
    {
        return "provider-{$providerId}-{$suffix}";
    }

    private function pagarmeRequest(int $providerId, string $suffix = 'recipient')
    {
        $secretKey = config('services.pagarme.secret_key');

        if (empty($secretKey)) {
            Log::channel('pagarme')->error('PAGARME_SECRET_KEY is not configured.');

            throw new \RuntimeException('PAGARME_SECRET_KEY is not configured.');
        }

        return Http::withBasicAuth($secretKey, '')
            ->withHeaders([
                'Idempotency-Key' => $this->idempotencyKey($providerId, $suffix),
                'Content-Type'    => 'application/json',
                'Accept'          => 'application/json',
            ]);
    }

    private function pagarmeUrl(string $path): string
    {
        return rtrim(config('services.pagarme.base_url'), '/').'/'.ltrim($path, '/');
    }

    //

    private function buildPhoneNumbers(?string $phone): array
    {
        $digits = preg_replace('/\D+/', '', (string) $phone) ?? '';

        if (strlen($digits) < 10) {
            return [[
                'ddd'    => '11',
                'number' => '999999999',
                'type'   => 'mobile',
            ]];
        }

        if (str_starts_with($digits, '55')) {
            $digits = substr($digits, 2);
        }

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

        $number = substr($digits, 2);

        return [[
            'ddd'    => $areaCode,
            'number' => $number,
            'type'   => 'mobile',
        ]];
    }

    private function buildRecipientCode(Provider $provider, array $data): string
    {
        $baseCode = preg_replace('/\D+/', '', (string) ($data['recipient_code'] ?? '')) ?: (string) $provider->id;

        // Pagar.me exige external_id unico; usar code deterministico por provider evita colisao entre contas.
        return Str::limit("provider-{$provider->id}-{$baseCode}", 52, '');
    }

    private function extractAddressParts(array $data): array
    {
        $addressLine = trim((string) ($data['address'] ?? ''));

        $segments = array_map('trim', explode(',', $addressLine));

        $streetSegment = $segments[0] ?? '';

        $streetNumber   = $data['number'] ?? null;
        $neighborhood   = $data['district'] ?? null;
        $referencePoint = $data['reference_point'] ?? null;
        $complementary  = $data['complement'] ?? null;

        if ($streetNumber === null) {
            preg_match('/^(\d+)/', $streetSegment, $matches);
            $streetNumber = $matches[1] ?? 'S/N';
        }

        if ($neighborhood === null) {
            $neighborhood = $segments[1] ?? 'N/A';
        }

        if ($referencePoint === null) {
            $referencePoint = 'N/A';
        }

        if ($complementary === null) {
            $complementary = 'N/A';
        }

        return [
            'street_number'   => (string) $streetNumber,
            'neighborhood'    => (string) $neighborhood,
            'reference_point' => (string) $referencePoint,
            'complementary'   => (string) $complementary,
        ];
    }

    private function filterFilledRecursive(array $data): array
    {
        $filtered = [];

        foreach ($data as $key => $value) {
            if (is_array($value)) {
                $value = $this->filterFilledRecursive($value);
            }

            if ($value !== null && $value !== '' && $value !== []) {
                $filtered[$key] = $value;
            }
        }

        return $filtered;
    }

    private function formatBirthdate(mixed $birthdate): ?string
    {
        if ($birthdate === null || $birthdate === '') {
            return null;
        }

        if ($birthdate instanceof \DateTimeInterface) {
            return Carbon::instance($birthdate)->format('d/m/Y');
        }

        $birthdate = trim((string) $birthdate);

        if (preg_match('/^\d{2}\/\d{2}\/\d{4}$/', $birthdate) === 1) {
            return $birthdate;
        }

        if (preg_match('/^\d{4}-\d{2}-\d{2}$/', $birthdate) === 1) {
            return Carbon::createFromFormat('Y-m-d', $birthdate)->format('d/m/Y');
        }

        return Carbon::parse($birthdate)->format('d/m/Y');
    }

    private function normalizeBankAccountHolderName(string $holderName): string
    {
        $holderName = trim(preg_replace('/\s+/', ' ', $holderName) ?? '');

        if (Str::length($holderName) < 30) {
            return $holderName;
        }

        $parts = explode(' ', $holderName);

        if (count($parts) >= 3) {
            $firstName = array_shift($parts);
            $lastName  = array_pop($parts);

            $initials = array_map(
                static fn (string $part): string => Str::upper(Str::substr($part, 0, 1)),
                $parts
            );

            $abbreviated = trim($firstName.' '.implode(' ', $initials).' '.$lastName);

            if (Str::length($abbreviated) < 30) {
                return $abbreviated;
            }

            $firstAndLast = trim($firstName.' '.$lastName);

            if (Str::length($firstAndLast) < 30) {
                return $firstAndLast;
            }
        }

        return Str::limit($holderName, 29, '');
    }

    private function normalizeBankAccountPayload(array $bankAccountData): array
    {
        return [
            'holder_name'         => $bankAccountData['holder_name'],
            'holder_type'         => $bankAccountData['holder_type'],
            'holder_document'     => preg_replace('/\D+/', '', $bankAccountData['holder_document']),
            'bank'                => $bankAccountData['bank'],
            'branch_number'       => $bankAccountData['branch_number'],
            'branch_check_digit'  => $bankAccountData['branch_check_digit'] ?? null,
            'account_number'      => $bankAccountData['account_number'],
            'account_check_digit' => $bankAccountData['account_check_digit'],
            'type'                => $bankAccountData['type'],
            'metadata'            => $bankAccountData['metadata'] ?? null,
        ];
    }
}