<?php

namespace App\Services;

use App\Models\Address;
use App\Models\ClientPaymentMethod;
use App\Models\Payment;
use App\Models\PaymentTransfer;
use App\Models\Schedule;
use App\Services\Pagarme\PagarmePaymentService;
use Carbon\Carbon;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Support\Str;

class PaymentService
{
    public function __construct(
        private readonly PagarmePaymentService $pagarmePaymentService,
    ) {}

    public function getAll(): Collection
    {
        return Payment::query()
            ->orderBy('created_at', 'desc')
            ->get();
    }

    public function findById(int $id): ?Payment
    {
        return Payment::find($id);
    }

    public function create(array $data): Payment
    {
        return Payment::create($data);
    }

    public function update(int $id, array $data): ?Payment
    {
        $model = $this->findById($id);

        if (! $model) {
            return null;
        }

        $model->update($data);

        return $model->fresh();
    }

    public function delete(int $id): bool
    {
        $model = $this->findById($id);

        if (! $model) {
            return false;
        }

        return $model->delete();
    }

    public function createPagarmeOrderForAcceptedSchedule(Schedule $schedule): Payment
    {
        $schedule->loadMissing(['client', 'provider', 'customSchedule.serviceType']);

        if (! $schedule->provider_id || ! $schedule->provider) {
            throw new \InvalidArgumentException('Agendamento precisa ter prestador confirmado para gerar pagamento.');
        }

        if ((float) $schedule->total_amount <= 0) {
            throw new \InvalidArgumentException('Agendamento precisa ter valor maior que zero para gerar pagamento.');
        }

        if (empty($schedule->provider->recipient_id)) {
            throw new \InvalidArgumentException('Prestador precisa ter recipient_id do Pagar.me para receber split.');
        }

        $existingPayment = Payment::query()
            ->where('schedule_id', $schedule->id)
            ->whereIn('status', ['pending', 'processing', 'authorized', 'paid'])
            ->latest('id')
            ->first();

        if ($existingPayment) {
            return $existingPayment;
        }

        $clientPaymentMethod = ClientPaymentMethod::query()
            ->where('client_id', $schedule->client_id)
            ->where('is_active', true)
            ->latest('id')
            ->first();

        $paymentMethod = $clientPaymentMethod?->token ? 'credit_card' : 'pix';
        $serviceAmount = (float) $schedule->total_amount;
        $platformFee   = round($serviceAmount * 0.11, 2);
        $grossAmount   = round($serviceAmount + $platformFee, 2);

        $payment = Payment::create([
            'schedule_id'              => $schedule->id,
            'client_id'                => $schedule->client_id,
            'provider_id'              => $schedule->provider_id,
            'client_payment_method_id' => $paymentMethod === 'credit_card' ? $clientPaymentMethod->id : null,
            'gateway_provider'         => 'pagarme',
            'payment_method'           => $paymentMethod,
            'status'                   => 'pending',
            'gross_amount'             => $grossAmount,
            'gateway_fee_amount'       => 0,
            'platform_fee_amount'      => $platformFee,
            'net_amount'               => $grossAmount,
            'currency'                 => 'BRL',
            'installments'             => 1,
            'expires_at'               => $paymentMethod === 'pix' ? Carbon::now()->addMinutes(30) : null,
            'metadata'                 => [
                'service_amount' => number_format($serviceAmount, 2, '.', ''),
                'platform_fee'   => number_format($platformFee, 2, '.', ''),
            ],
        ]);

        $transfer = PaymentTransfer::create([
            'payment_id'                         => $payment->id,
            'provider_id'                        => $schedule->provider_id,
            'gateway_provider'                   => 'pagarme',
            'gateway_transfer_target_reference'  => $schedule->provider->recipient_id,
            'gateway_transfer_target_label'      => 'recipient',
            'status'                             => 'pending',
            'gross_amount'                       => $serviceAmount,
            'gateway_fee_amount'                 => 0,
            'net_amount'                         => $serviceAmount,
            'metadata'                           => [
                'schedule_id' => (string) $schedule->id,
            ],
        ]);

        $items    = $this->buildOrderItems($schedule, $grossAmount);
        $customer = $this->buildCustomerPayload($schedule);
        $split    = $this->pagarmePaymentService->buildSplitFromTransfers(collect([$transfer]));

        $orderResponse = $paymentMethod === 'credit_card'
            ? $this->pagarmePaymentService->createOrderWithCreditCard(
                payment: $payment,
                items: $items,
                customer: $customer,
                creditCard: [
                    'installments'          => 1,
                    'statement_descriptor'  => Str::limit((string) config('app.name', 'SOFTPAR'), 13, ''),
                    'operation_type'        => 'auth_and_capture',
                    'card_token'            => $clientPaymentMethod->token,
                ],
                options: ['split' => $split],
            )
            : $this->pagarmePaymentService->createOrderWithPix(
                payment: $payment,
                items: $items,
                customer: $customer,
                pix: [
                    'expires_at' => $payment->expires_at?->toISOString(),
                ],
                options: ['split' => $split],
            );

        return $this->pagarmePaymentService->applyGatewayResponseToPayment($payment, $orderResponse);
    }

    /**
     * @return array<int, array<string, mixed>>
     */
    private function buildOrderItems(Schedule $schedule, float $grossAmount): array
    {
        $description = $schedule->customSchedule?->serviceType?->description
            ?? "Servico {$schedule->id}";

        return [[
            'amount'      => $this->pagarmePaymentService->toGatewayAmountInCents($grossAmount),
            'description' => $description,
            'quantity'    => 1,
            'code'        => "schedule-{$schedule->id}",
        ]];
    }

    /**
     * @return array<string, mixed>
     */
    private function buildCustomerPayload(Schedule $schedule): array
    {
        $client  = $schedule->client;
        $user    = $client->user()->first(['id', 'name', 'email', 'phone']);
        $address = Address::with(['city.state', 'state'])->find($schedule->address_id);

        if (! $user?->name || ! $user?->email || ! $client->document) {
            throw new \InvalidArgumentException('Cliente precisa ter nome, email e documento para criar pedido no Pagar.me.');
        }

        if (! $address) {
            throw new \InvalidArgumentException('Endereco do agendamento nao encontrado para criar pedido no Pagar.me.');
        }

        $document = $this->digits($client->document);
        $phone    = $this->buildPhonePayload($user->phone);
        $state    = $address->state?->code ?? $address->city?->state?->code;
        $city     = $address->city?->name;
        $zipCode  = $this->digits($address->zip_code);
        $line1    = implode(', ', array_filter([
            $address->number ?: 'S/N',
            $address->address,
            $address->district,
        ]));

        foreach ([
            'documento' => $document,
            'telefone'  => $phone,
            'estado'    => $state,
            'cidade'    => $city,
            'cep'       => $zipCode,
            'endereco'  => $line1,
        ] as $field => $value) {
            if ($value === null || $value === '' || $value === []) {
                throw new \InvalidArgumentException("Cliente precisa ter {$field} valido para criar pedido no Pagar.me.");
            }
        }

        return [
            'name'          => $user->name,
            'email'         => $user->email,
            'code'          => "client-{$client->id}",
            'document'      => $document,
            'document_type' => strlen($document) === 14 ? 'CNPJ' : 'CPF',
            'type'          => strlen($document) === 14 ? 'company' : 'individual',
            'address'       => [
                'country'  => 'BR',
                'state'    => $state,
                'city'     => $city,
                'zip_code' => $zipCode,
                'line_1'   => $line1,
                'line_2'   => $address->complement ?: $address->instructions,
            ],
            'phones'        => ['mobile_phone' => $phone],
        ];
    }

    /**
     * @return array<string, string>|null
     */
    private function buildPhonePayload(?string $phone): ?array
    {
        $digits = $this->digits($phone);

        if (strlen($digits) < 10) {
            return null;
        }

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

        return [
            'country_code' => '55',
            'area_code'    => substr($digits, 0, 2),
            'number'       => substr($digits, 2),
        ];
    }

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