<?php

declare(strict_types=1);

namespace Tests\Feature\Api\Admin;

use App\Models\Coupon;
use App\Models\CouponRedemption;
use App\Models\Customer;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Spatie\Permission\Models\Permission;
use Spatie\Permission\Models\Role;
use Tests\TestCase;

class CouponAdminTest extends TestCase
{
    use RefreshDatabase;

    private function admin(array $permissions): User
    {
        $role = Role::create(['name' => 'role-' . uniqid(), 'guard_name' => 'admin']);
        foreach ($permissions as $name) {
            $role->givePermissionTo(Permission::firstOrCreate(['name' => $name, 'guard_name' => 'admin']));
        }
        $admin = User::factory()->create();
        $admin->assignRole($role);

        return $admin;
    }

    private function payload(array $overrides = []): array
    {
        return array_merge([
            'code' => 'welcome10',
            'type' => 'percent',
            'value' => 10,
            'applies_to' => 'new',
            'product_types' => ['vps'],
        ], $overrides);
    }

    public function test_crud_and_code_is_normalized(): void
    {
        $admin = $this->admin(['product-service.view', 'product-service.create', 'product-service.edit', 'product-service.destroy']);

        $id = $this->actingAs($admin, 'admin')
            ->postJson('/api/v1/administrator/coupons', $this->payload())
            ->assertCreated()
            ->assertJsonPath('data.code', 'WELCOME10')
            ->json('data.id');

        $this->putJson("/api/v1/administrator/coupons/{$id}", $this->payload(['value' => 15]))
            ->assertOk()->assertJsonPath('data.value', 15);

        $this->getJson('/api/v1/administrator/coupons')->assertOk()->assertJsonPath('data.0.used_count', 0);

        $this->deleteJson("/api/v1/administrator/coupons/{$id}")->assertOk();
    }

    public function test_validation_rejects_duplicate_code_and_percent_over_99(): void
    {
        $admin = $this->admin(['product-service.create']);
        Coupon::create(['code' => 'DUP', 'type' => 'fixed', 'value' => 1000, 'applies_to' => 'new']);

        $this->actingAs($admin, 'admin')
            ->postJson('/api/v1/administrator/coupons', $this->payload(['code' => 'dup']))
            ->assertStatus(422)->assertJsonValidationErrors('code');
        $this->postJson('/api/v1/administrator/coupons', $this->payload(['value' => 100]))
            ->assertStatus(422)->assertJsonValidationErrors('value');
    }

    public function test_used_coupon_cannot_be_deleted(): void
    {
        $admin = $this->admin(['product-service.destroy']);
        $coupon = Coupon::create(['code' => 'USED', 'type' => 'fixed', 'value' => 1000, 'applies_to' => 'new']);
        CouponRedemption::create([
            'coupon_id' => $coupon->id,
            'customer_id' => Customer::factory()->create()->id,
            'amount' => 1000,
        ]);

        $this->actingAs($admin, 'admin')
            ->deleteJson("/api/v1/administrator/coupons/{$coupon->id}")
            ->assertStatus(422);
        $this->assertNotNull(Coupon::find($coupon->id));
    }

    public function test_requires_permission(): void
    {
        Permission::firstOrCreate(['name' => 'product-service.view', 'guard_name' => 'admin']);

        $this->actingAs($this->admin([]), 'admin')
            ->getJson('/api/v1/administrator/coupons')
            ->assertForbidden();
    }
}