<?php

namespace Tests\Feature;

use App\Auth\Permissions;
use App\Mail\UserInvitationMail;
use App\Models\Central\Company;
use App\Models\Central\Plan;
use App\Models\Tenant\User;
use App\Models\Tenant\UserPermissionOverride;
use App\Services\RbacSeeder;
use App\Tenancy\TenantManager;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Mail;
use Laravel\Sanctum\Sanctum;
use Spatie\Permission\Models\Permission;
use Spatie\Permission\PermissionRegistrar;
use Tests\TestCase;

class RbacApiTest extends TestCase
{
    use RefreshDatabase;

    private Company $company;
    private User $admin;
    private User $mechanic;

    protected function setUp(): void
    {
        parent::setUp();
        $plan = Plan::firstOrCreate(['slug' => 'test'], ['name' => 'T', 'price' => 0, 'features' => []]);
        $this->company = Company::create([
            'plan_id' => $plan->id, 'slug' => 'api-' . uniqid(),
            'name' => 'API Co', 'status' => 'active',
        ]);
        app(TenantManager::class)->setCurrent($this->company);
        app(RbacSeeder::class)->seedTenantRoles($this->company->id);
        app(PermissionRegistrar::class)->setPermissionsTeamId($this->company->id);

        $this->admin = User::create(['name' => 'A', 'email' => 'a@e.com', 'password' => bcrypt('x'), 'role' => 'admin', 'status' => 'active']);
        $this->admin->syncRoles(['admin']);

        $this->mechanic = User::create(['name' => 'M', 'email' => 'm@e.com', 'password' => bcrypt('x'), 'role' => 'mechanic', 'status' => 'active']);
        $this->mechanic->syncRoles(['mechanic']);
    }

    public function test_admin_can_list_users_via_api(): void
    {
        Sanctum::actingAs($this->admin);

        $resp = $this->getJson('/api/v1/users');
        $resp->assertOk();
        $this->assertGreaterThanOrEqual(2, count($resp->json('data')));
    }

    public function test_mechanic_cannot_list_users_403(): void
    {
        Sanctum::actingAs($this->mechanic);

        $resp = $this->getJson('/api/v1/users');
        $resp->assertForbidden();
    }

    public function test_admin_can_create_user_and_invitation_is_sent(): void
    {
        Mail::fake();
        Sanctum::actingAs($this->admin);

        $resp = $this->postJson('/api/v1/users', [
            'name' => 'New U', 'email' => 'newu@e.com',
            'role' => 'receptionist', 'send_invitation' => true,
        ]);

        $resp->assertCreated();
        $this->assertEquals('inactive', $resp->json('data.status'));   // inactive until invitation accepted
        $this->assertTrue($resp->json('invitation_sent'));
        Mail::assertQueued(UserInvitationMail::class);
    }

    public function test_admin_can_assign_and_remove_roles_via_api(): void
    {
        Sanctum::actingAs($this->admin);

        $resp = $this->postJson("/api/v1/users/{$this->mechanic->id}/roles", ['role' => 'receptionist']);
        $resp->assertOk();
        $this->mechanic->refresh();
        $this->assertTrue($this->mechanic->hasRole('receptionist'));

        $resp = $this->deleteJson("/api/v1/users/{$this->mechanic->id}/roles/receptionist");
        $resp->assertOk();
        $this->mechanic->refresh();
        $this->assertFalse($this->mechanic->hasRole('receptionist'));
    }

    public function test_effective_permissions_endpoint_subtracts_denies(): void
    {
        Sanctum::actingAs($this->admin);

        // Admin has FINANCE_VIEW_OVERVIEW. Add a deny override.
        $perm = Permission::where('name', Permissions::FINANCE_VIEW_OVERVIEW)->first();
        UserPermissionOverride::create([
            'user_id' => $this->admin->id, 'permission_id' => $perm->id,
            'mode' => 'deny', 'reason' => 'test', 'granted_at' => now(),
        ]);

        $resp = $this->getJson("/api/v1/users/{$this->admin->id}/permissions");
        $resp->assertOk();
        $effective = collect($resp->json('data'));
        $this->assertFalse($effective->contains(Permissions::FINANCE_VIEW_OVERVIEW));
        $denies = collect($resp->json('overrides.denies'));
        $this->assertTrue($denies->contains(Permissions::FINANCE_VIEW_OVERVIEW));
    }

    public function test_add_override_via_api_persists(): void
    {
        Sanctum::actingAs($this->admin);

        $resp = $this->postJson("/api/v1/users/{$this->mechanic->id}/permission-overrides", [
            'permission' => Permissions::WORK_ORDERS_VIEW_ALL,
            'mode' => 'grant',
            'reason' => 'pinch hitter',
            'expires_at' => now()->addDays(3)->toIso8601String(),
        ]);
        $resp->assertOk();

        $this->mechanic->refresh();
        $this->assertEquals(1, $this->mechanic->permissionOverrides()->count());
        $this->assertTrue($this->mechanic->canDo(Permissions::WORK_ORDERS_VIEW_ALL));
    }

    public function test_remove_override_via_api(): void
    {
        Sanctum::actingAs($this->admin);
        $perm = Permission::where('name', Permissions::WORK_ORDERS_VIEW_ALL)->first();
        UserPermissionOverride::create(['user_id' => $this->mechanic->id, 'permission_id' => $perm->id, 'mode' => 'grant', 'granted_at' => now()]);

        $resp = $this->deleteJson("/api/v1/users/{$this->mechanic->id}/permission-overrides/" . Permissions::WORK_ORDERS_VIEW_ALL);
        $resp->assertOk();
        $this->assertEquals(0, $this->mechanic->fresh()->permissionOverrides()->count());
    }

    public function test_role_index_returns_all_roles_with_counts(): void
    {
        Sanctum::actingAs($this->admin);

        $resp = $this->getJson('/api/v1/roles');
        $resp->assertOk();
        $roles = collect($resp->json('data'));
        $this->assertGreaterThanOrEqual(7, $roles->count());
        $owner = $roles->firstWhere('name', 'owner');
        $this->assertNotNull($owner);
        $this->assertEquals(52, $owner['permissions_count']);
    }

    public function test_role_sync_permissions_updates_role(): void
    {
        Sanctum::actingAs($this->admin);
        $role = \Spatie\Permission\Models\Role::create(['name' => 'custom_role', 'guard_name' => 'web']);

        $resp = $this->putJson("/api/v1/roles/{$role->id}/permissions", [
            'permissions' => [Permissions::CLIENTS_VIEW_ALL, Permissions::VEHICLES_VIEW_ALL],
        ]);
        $resp->assertOk();

        $this->assertEquals(2, $role->fresh()->permissions()->count());
    }

    public function test_role_destroy_rejects_system_role(): void
    {
        Sanctum::actingAs($this->admin);
        $owner = \Spatie\Permission\Models\Role::where('name', 'owner')->where('company_id', $this->company->id)->first();

        $resp = $this->deleteJson("/api/v1/roles/{$owner->id}");
        $resp->assertStatus(422);
        $this->assertEquals('Cannot delete system role', $resp->json('error'));
    }

    public function test_permission_catalog_endpoint_returns_full_list_and_groups(): void
    {
        Sanctum::actingAs($this->admin);

        $resp = $this->getJson('/api/v1/permissions');
        $resp->assertOk();
        $this->assertEquals(52, count($resp->json('data')));
        $this->assertArrayHasKey('grouped', $resp->json());
        $this->assertArrayHasKey('clients', $resp->json('grouped'));
        $this->assertArrayHasKey('roles', $resp->json());
    }

    public function test_revoke_all_sessions_endpoint(): void
    {
        Sanctum::actingAs($this->admin);
        \DB::table('sessions')->insert([
            ['id' => 's1', 'user_id' => $this->mechanic->id, 'ip_address' => '1.1.1.1', 'user_agent' => 'X', 'payload' => '', 'last_activity' => time()],
            ['id' => 's2', 'user_id' => $this->mechanic->id, 'ip_address' => '2.2.2.2', 'user_agent' => 'Y', 'payload' => '', 'last_activity' => time()],
        ]);

        $resp = $this->deleteJson("/api/v1/users/{$this->mechanic->id}/sessions");
        $resp->assertOk();
        $this->assertEquals(2, $resp->json('revoked_count'));
        $this->assertEquals(0, \DB::table('sessions')->where('user_id', $this->mechanic->id)->count());
    }
}
