<?php

namespace App\Jobs;

use App\Models\StudentContractInstallment;
use App\Models\UnitPaymentAccount;
use App\Services\Integrations\Asaas\AsaasClient;
use App\Services\Integrations\Asaas\AsaasCustomerService;
use Exception;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Log;

/**
 * Emite a cobrança de uma parcela de aluno na conta Asaas PRÓPRIA da unidade.
 *
 * Asaas é opcional: se a unidade não tiver chave, o job apenas registra e sai —
 * a parcela segue para baixa manual. externalReference = STU_{id}.
 */
class SyncStudentChargeJob implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public StudentContractInstallment $installment;

    public function __construct(StudentContractInstallment $installment)
    {
        $this->installment = $installment;
    }

    public function handle(): void
    {
        $installment = $this->installment->fresh(['student']);

        if (!$installment || $installment->status === 'cancelled') {
            return;
        }

        if ($installment->asaas_id) {
            Log::info("Parcela #{$installment->id} já possui cobrança Asaas. Ignorando.");
            return;
        }

        $account = UnitPaymentAccount::where('unit_id', $installment->unit_id)->first();

        if (!$account || empty($account->asaas_api_key)) {
            Log::info("Unidade {$installment->unit_id} sem Asaas. Parcela #{$installment->id} segue para baixa manual.");
            return;
        }

        $client          = new AsaasClient($account->asaas_api_key);
        $customerService  = new AsaasCustomerService($client);

        try {
            $customerId = $customerService->ensureStudentCustomer($installment->student);

            $response = $client->post('/payments', [
                'customer' => $customerId,
                'billingType' => 'UNDEFINED',
                'value' => (float) $installment->value,
                'dueDate' => $installment->due_date->format('Y-m-d'),
                'description' => trim(($installment->history ?? 'Mensalidade') . ' ' . $installment->order),
                'externalReference' => "STU_{$installment->id}",
            ]);

            $installment->update([
                'asaas_customer_id' => $customerId,
                'asaas_id'          => $response['id'],
                'invoice_url'       => $response['invoiceUrl'] ?? null,
                'billing_type'      => $response['billingType'] ?? 'UNDEFINED',
                'asaas_status'      => $response['status'] ?? null,
            ]);

            Log::info("Cobrança Asaas gerada para parcela #{$installment->id}.");
        } catch (Exception $e) {
            Log::error("Erro ao gerar cobrança Asaas da parcela #{$installment->id}: " . $e->getMessage());
            throw $e;
        }
    }
}