<?php

declare(strict_types=1);

namespace Tests\Feature\Console;

use App\Enums\Invoice\InvoiceStatus;
use App\Enums\Order\OrderStatus;
use App\Models\Customer;
use App\Models\Invoice;
use App\Models\Order;
use App\Jobs\Mail\SendTemplateEmailJob;
use App\Services\InvoiceReminderService;
use App\Support\AutoEmailGate;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Queue;
use Tests\TestCase;

class InvoiceReminderTest extends TestCase
{
    use RefreshDatabase;

    protected function setUp(): void
    {
        parent::setUp();
        // EmailTemplateService::send() đẩy qua SendTemplateEmailJob — fake queue để test
        // không phụ thuộc template có trong DB hay không.
        Queue::fake();
        config(['billing.reminder_offsets' => [-7, -3, 0, 3]]);
        $this->setAutoDisabled([]);
    }

    private function setAutoDisabled(array $scenarios): void
    {
        DB::table('setting')->updateOrInsert(['key' => 'email_settings'], ['value' => json_encode(['auto_disabled' => $scenarios])]);
    }

    public function test_disabled_automatic_reminder_is_not_sent_and_step_stays(): void
    {
        $this->setAutoDisabled([InvoiceReminderService::SCENARIO]);
        $invoice = $this->makeInvoice(now()->addDays(5));

        $this->artisan('invoices:send-reminders')->assertExitCode(0);

        $this->assertSame(0, (int) $invoice->fresh()->reminder_step);
        Queue::assertNotPushed(SendTemplateEmailJob::class);
    }

    public function test_manual_reminder_is_sent_while_automatic_is_disabled(): void
    {
        $this->setAutoDisabled([InvoiceReminderService::SCENARIO]);
        $invoice = $this->makeInvoice(now()->addDays(5));
        AutoEmailGate::markManual();

        $this->assertTrue(app(InvoiceReminderService::class)->remind($invoice, force: true));
    }

    public function test_no_reminder_is_sent_before_the_first_offset(): void
    {
        $invoice = $this->makeInvoice(now()->addDays(30));

        $this->artisan('invoices:send-reminders')->assertExitCode(0);

        $this->assertSame(0, (int) $invoice->fresh()->reminder_step);
    }

    public function test_reminder_step_advances_once_per_offset_reached(): void
    {
        // Hạn còn 5 ngày → đã qua mốc -7, chưa tới mốc -3.
        $invoice = $this->makeInvoice(now()->addDays(5));

        $this->artisan('invoices:send-reminders')->assertExitCode(0);
        $this->assertSame(1, (int) $invoice->fresh()->reminder_step);

        // Chạy lại trong ngày không được gửi trùng.
        $this->artisan('invoices:send-reminders')->assertExitCode(0);
        $this->assertSame(1, (int) $invoice->fresh()->reminder_step);
    }

    public function test_an_overdue_invoice_reaches_the_later_offsets(): void
    {
        $invoice = $this->makeInvoice(now()->subDays(4), InvoiceStatus::OVERDUE->value);

        $this->artisan('invoices:send-reminders')->assertExitCode(0);

        // Đã qua cả 4 mốc: -7, -3, 0, +3.
        $this->assertSame(4, (int) $invoice->fresh()->reminder_step);
    }

    public function test_a_paid_invoice_is_never_reminded(): void
    {
        $invoice = $this->makeInvoice(now()->subDays(10), InvoiceStatus::PAID->value);

        $this->artisan('invoices:send-reminders')->assertExitCode(0);

        $this->assertSame(0, (int) $invoice->fresh()->reminder_step);
        $this->assertFalse(app(InvoiceReminderService::class)->isRemindable($invoice->fresh()));
    }

    /** Nút nhắc thủ công của kế toán gửi được kể cả khi mốc đó đã gửi rồi. */
    public function test_manual_reminder_sends_even_when_the_offset_was_already_used(): void
    {
        $invoice = $this->makeInvoice(now()->addDays(5));
        $reminders = app(InvoiceReminderService::class);

        $this->assertTrue($reminders->remind($invoice));
        $this->assertFalse($reminders->remind($invoice->fresh()));
        $this->assertTrue($reminders->remind($invoice->fresh(), force: true));
    }

    private function makeInvoice(\Carbon\Carbon $dueDate, int $status = InvoiceStatus::UNPAID->value): Invoice
    {
        $customer = Customer::factory()->create();
        $order = Order::create([
            'order_num' => 'ORD-' . uniqid(),
            'customer_id' => $customer->id,
            'sub_total' => 100_000,
            'total' => 100_000,
            'status' => OrderStatus::PENDING->value,
        ]);

        return Invoice::create([
            'invoice_number' => 'INV-' . uniqid(),
            'customer_id' => $customer->id,
            'order_id' => $order->id,
            'invoice_type' => 1,
            'sub_total' => 100_000,
            'tax' => 0,
            'total' => 100_000,
            'status' => $status,
            'due_date' => $dueDate->toDateString(),
        ]);
    }
}