<?php

namespace Tests\Feature\Users\Ui;

use App\Models\Asset;
use App\Models\Company;
use App\Models\User;
use Error;
use Illuminate\Support\Facades\Hash;
use Tests\TestCase;

class UpdateUserTest extends TestCase
{
    public function test_requires_permission()
    {
        $this->actingAs(User::factory()->create())
            ->get(route('users.edit', User::factory()->create()->id))
            ->assertForbidden();
    }

    public function test_page_renders()
    {
        $this->actingAs(User::factory()->editUsers()->create())
            ->get(route('users.edit', User::factory()->create()->id))
            ->assertOk();
    }

    public function test_edit_form_does_not_leak_company_id_into_location_select()
    {
        // Regression: the company_ids <select> looped with `@foreach (... as $company_id)`,
        // and PHP's foreach doesn't scope the loop variable, so $company_id persisted into
        // the outer view. The @include of location-select then inherited it and emitted
        // data-company-id on the location dropdown, which restricted the AJAX call to
        // only that one company's locations.
        $companyA = Company::factory()->create();
        $target = User::factory()->create();
        $target->companies()->sync([$companyA->id]);

        $this->actingAs(User::factory()->superuser()->create());

        $html = $this->get(route('users.edit', $target))->assertOk()->getContent();

        $this->assertStringNotContainsString(
            'data-company-id',
            $this->extractLocationSelect($html),
            'Location select must not emit data-company-id from a leaked foreach variable.'
        );
    }

    private function extractLocationSelect(string $html): string
    {
        if (! preg_match('/<select[^>]*id="location_id_location_select"[^>]*>/', $html, $matches)) {
            $this->fail('Location select element not found in user edit HTML.');
        }

        return $matches[0];
    }

    public function test_uncompanied_user_can_edit_their_own_record_with_fmcs_on_and_floater_off()
    {
        // Regression: with FMCS on + floater off, the CompanyableScope lets an
        // uncompanied non-superuser see themselves in the users list, but the
        // policy used to 403 the edit because the bypass required the legacy
        // scalar users.company_id column to also be null. Actors are always
        // allowed to access their own record.
        $this->settings->enableMultipleFullCompanySupport();
        $this->settings->disableFloaterMode();

        $self = User::factory()->editUsers()->withoutCompany()->create();
        $self->companies()->sync([]);

        $this->actingAs($self)
            ->get(route('users.edit', $self))
            ->assertOk();
    }

    public function test_can_view_edit_page_for_soft_deleted_user()
    {
        $user = User::factory()->trashed()->create();

        $this->actingAs(User::factory()->superuser()->create())
            ->get(route('users.edit', $user->id))
            ->assertRedirectToRoute('users.show', $user->id);
    }

    public function test_users_can_be_activated_with_number()
    {
        $admin = User::factory()->editUsers()->create();
        $user = User::factory()->create(['activated' => 0]);

        $this->actingAs($admin)
            ->put(route('users.update', $user), [
                'first_name' => $user->first_name,
                'username' => $user->username,
                'activated' => 1,
            ]);

        $this->assertEquals(1, $user->refresh()->activated);
    }

    public function test_users_can_be_activated_with_boolean_true()
    {
        $admin = User::factory()->editUsers()->create();
        $user = User::factory()->create(['activated' => false]);

        $this->actingAs($admin)
            ->put(route('users.update', $user), [
                'first_name' => $user->first_name,
                'username' => $user->username,
                'activated' => true,
            ]);

        $this->assertEquals(1, $user->refresh()->activated);
    }

    public function test_users_can_be_deactivated_with_number()
    {
        $admin = User::factory()->editUsers()->create();
        $user = User::factory()->create(['activated' => true]);

        $this->actingAs($admin)
            ->put(route('users.update', $user), [
                'first_name' => $user->first_name,
                'username' => $user->username,
                'activated' => 0,
            ]);

        $this->assertEquals(0, $user->refresh()->activated);
    }

    public function test_users_can_be_deactivated_with_boolean_false()
    {
        $admin = User::factory()->editUsers()->create();
        $user = User::factory()->create(['activated' => true]);

        $this->actingAs($admin)
            ->put(route('users.update', $user), [
                'first_name' => $user->first_name,
                'username' => $user->username,
                'activated' => false,
            ]);

        $this->assertEquals(0, $user->refresh()->activated);
    }

    public function test_users_updating_themselves_do_not_deactivate_their_account()
    {
        $admin = User::factory()->editUsers()->create(['activated' => true]);

        $this->actingAs($admin)
            ->put(route('users.update', $admin), [
                'first_name' => $admin->first_name,
                'username' => $admin->username,
            ]);

        $this->assertEquals(1, $admin->refresh()->activated);
    }

    /**
     * Regression for the pre-gate-activated escalation:
     * UsersController::update used to assign $user->activated from the
     * request BEFORE the canEditAuthFields gate, with the intent that the
     * gated branch would overwrite it for authorized callers. Unauthorized
     * callers had the first assignment stick through to save(), letting
     * anyone with `users.edit` deactivate any admin by POSTing a full edit
     * payload.
     *
     * The pre-existing test_editing_users_cannot_edit_escalation_fields_for_admins
     * passed by accident because its payload omitted first_name / last_name,
     * so SaveUserRequest rejected the request on validation before the
     * controller wrote to the model. This test sends a complete valid
     * payload so the controller actually runs to save() and pins the
     * unauthorized-cannot-touch-activated behavior directly.
     */
    public function test_editing_users_cannot_toggle_admin_activated_via_full_valid_payload()
    {
        $editing_user = User::factory()->editUsers()->create(['activated' => true]);
        $admin = User::factory()->admin()->create([
            'first_name' => 'Admin',
            'last_name' => 'Target',
            'username' => 'admin_target',
            'email' => 'admin-target@example.test',
            'activated' => true,
        ]);

        $this->actingAs($editing_user)
            ->put(route('users.update', $admin), [
                'first_name' => $admin->first_name,
                'last_name' => $admin->last_name,
                'username' => $admin->username,
                'email' => $admin->email,
                'activated' => 0,
            ]);

        $this->assertSame(1, (int) $admin->fresh()->activated, 'Non-admin actor must not be able to deactivate an admin.');
    }

    public function test_editing_users_cannot_edit_escalation_fields_for_admins()
    {
        $editing_user = User::factory()->editUsers()->create(['activated' => true]);
        $hashed_original = Hash::make('my-awesome-password!!!!!12345');
        $admin = User::factory()->admin()->create(['username' => 'TestAdminUser', 'email' => 'admin@example.org', 'password' => $hashed_original, 'activated' => true]);

        $this->assertDatabaseHas('users', [
            'id' => $admin->id,
            'username' => 'TestAdminUser',
            'email' => 'admin@example.org',
            'activated' => 1,
            'password' => $hashed_original,
        ]);

        $this->actingAs($editing_user)
            ->put(route('users.update', $admin), [
                'username' => 'testnewusername',
                'email' => 'testnewemail@example.org',
                'activated' => 0,
                'password' => 'TOTALLY-DIFFERENT-awesome-password!!!!!12345',
            ]);

        $this->assertEquals('TestAdminUser', $admin->refresh()->username);
        $this->assertEquals('admin@example.org', $admin->refresh()->email);
        $this->assertEquals(1, $admin->refresh()->activated);
        $this->assertNotEquals(Hash::check('super-secret', $admin->password), $admin->refresh()->password);
        $this->assertNotEquals('testnewusername', $admin->refresh()->username);
        $this->assertNotEquals('testnewemail@example.org', $admin->refresh()->email);
        $this->assertNotEquals(0, $admin->refresh()->activated);
        $this->assertNotEquals(Hash::check('TOTALLY-DIFFERENT-awesome-password!!!!!12345', $admin->password), $admin->refresh()->password);
    }

    public function test_admin_users_cannot_edit_fields_for_super_admins()
    {
        $admin = User::factory()->admin()->create(['activated' => true]);
        $hashed_original = Hash::make('my-awesome-password!!!!!12345');
        $superuser = User::factory()->superuser()->create(['username' => 'TestSuperUser', 'email' => 'superuser@example.org', 'password' => $hashed_original, 'activated' => true]);

        $this->assertDatabaseHas('users', [
            'id' => $superuser->id,
            'username' => 'TestSuperUser',
            'email' => 'superuser@example.org',
            'activated' => 1,
            'password' => $hashed_original,
        ]);

        $this->actingAs($admin)
            ->put(route('users.update', $superuser), [
                'username' => 'testnewusername',
                'email' => 'testnewemail@example.org',
                'activated' => 0,
                'password' => 'super-secret-new-password',
            ]);

        $this->assertDatabaseHas('users', [
            'id' => $superuser->id,
            'username' => $superuser->username,
            'email' => $superuser->email,
            'activated' => $superuser->activated,
            'password' => $hashed_original,
        ]);

        $this->assertEquals('TestSuperUser', $superuser->refresh()->username);
        $this->assertEquals('superuser@example.org', $superuser->refresh()->email);
        $this->assertEquals(1, $superuser->refresh()->activated);
        $this->assertTrue(Hash::check('my-awesome-password!!!!!12345', $superuser->password), $superuser->refresh()->password);
        $this->assertNotEquals('testnewusername', $superuser->refresh()->username);
        $this->assertNotEquals('testnewemail@example.org', $superuser->refresh()->email);
        $this->assertNotTrue(Hash::check('super-secret-new-password', $superuser->password), $superuser->refresh()->password);
    }

    public function test_multi_company_user_cannot_be_moved_if_has_asset_in_different_company()
    {
        $this->settings->enableMultipleFullCompanySupport();

        $companyA = Company::factory()->create();
        $companyB = Company::factory()->create();

        $user = User::factory()->forCompany($companyA)->create();
        $superUser = User::factory()->superuser()->create();

        $asset = Asset::factory()->create([
            'company_id' => $companyA->id,
        ]);

        // no assets assigned, therefore success
        $this->actingAs($superUser)->put(route('users.update', $user), [
            'first_name' => 'test',
            'username' => 'test',
            'company_id' => $companyB->id,
            'redirect_option' => 'index',
        ])->assertRedirect(route('users.index'));

        $asset->checkOut($user, $superUser);

        // asset assigned, therefore error
        $response = $this->actingAs($superUser)->patchJson(route('users.update', $user), [
            'first_name' => 'test',
            'username' => 'test',
            'company_id' => $companyB->id,
            'redirect_option' => 'index',
        ]);

        $this->followRedirects($response)->assertSee('error');
    }

    public function test_multi_company_user_can_be_updated_if_has_asset_in_same_company()
    {
        $this->settings->enableMultipleFullCompanySupport();

        $companyA = Company::factory()->create();

        $user = User::factory()->forCompany($companyA)->create();
        $superUser = User::factory()->superuser()->create();

        $asset = Asset::factory()->create([
            'company_id' => $companyA->id,
        ]);

        // no assets assigned, therefore success
        $this->actingAs($superUser)->put(route('users.update', $user), [
            'first_name' => 'test',
            'username' => 'test',
            'company_id' => $companyA->id,
            'redirect_option' => 'index',
        ])->assertRedirect(route('users.index'));

        $asset->checkOut($user, $superUser);

        // asset assigned, therefore error
        $response = $this->actingAs($superUser)->patchJson(route('users.update', $user), [
            'first_name' => 'test',
            'username' => 'test',
            'company_id' => $companyA->id,
            'redirect_option' => 'index',
        ]);

        $this->followRedirects($response)->assertSee('success');
    }

    public function test_edit_users_permission_cannot_escalate_empty_permissions_user_to_admin_or_superuser_via_ui()
    {
        $editingUser = User::factory()->editUsers()->create();
        $targetUser = User::factory()->create([
            'permissions' => null,
        ]);

        $this->actingAs($editingUser)
            ->put(route('users.update', $targetUser), [
                'first_name' => $targetUser->first_name,
                'username' => $targetUser->username,
                'permission' => [
                    'admin' => '1',
                    'superuser' => '1',
                    'users.view' => '1',
                ],
                'redirect_option' => 'index',
            ])
            ->assertRedirect(route('users.index'));

        $decoded = (array) $targetUser->refresh()->decodePermissions();

        $this->assertArrayNotHasKey('admin', $decoded, 'Non-admin user should not be able to grant admin');
        $this->assertArrayNotHasKey('superuser', $decoded, 'Non-admin user should not be able to grant superuser');
        $this->assertEquals(1, $decoded['users.view'] ?? null, 'Non-privileged permissions should still be updateable');
    }

    public function test_admin_cannot_escalate_empty_permissions_user_to_superuser_via_ui()
    {
        $adminUser = User::factory()->admin()->create();
        $targetUser = User::factory()->create([
            'permissions' => null,
        ]);

        $this->actingAs($adminUser)
            ->put(route('users.update', $targetUser), [
                'first_name' => $targetUser->first_name,
                'username' => $targetUser->username,
                'permission' => [
                    'admin' => '1',
                    'superuser' => '1',
                ],
                'redirect_option' => 'index',
            ])
            ->assertRedirect(route('users.index'));

        $decoded = (array) $targetUser->refresh()->decodePermissions();

        $this->assertArrayHasKey('admin', $decoded, 'Admin should be able to grant admin');
        $this->assertSame('1', (string) $decoded['admin']);
        $this->assertArrayNotHasKey('superuser', $decoded, 'Admin should not be able to grant superuser');
    }

    /**
     * This can occur if the user edit screen is open in one tab and
     * the user is deleted in another before the edit form is submitted.
     *
     * @link https://app.shortcut.com/grokability/story/29166
     */
    public function test_attempting_to_update_deleted_user_is_handled_gracefully()
    {
        [$companyA, $companyB] = Company::factory()->count(2)->create();
        $user = User::factory()->forCompany($companyA)->create();
        Asset::factory()->assignedToUser($user)->create();

        $id = $user->id;

        $user->delete();

        $response = $this->actingAs(User::factory()->editUsers()->create())
            ->put(route('users.update', $user), [
                'first_name' => 'test',
                'username' => 'test',
                'company_id' => $companyB->id,
            ]);

        $this->assertFalse($response->exceptions->contains(function ($exception) {
            // Avoid hard 500
            return $exception instanceof Error;
        }));

        // As of now, the user will be updated but not be restored
        $this->assertDatabaseHas('users', [
            'id' => $id,
            'first_name' => 'test',
            'username' => 'test',
        ]);

        $this->assertDatabaseHas('company_user', [
            'user_id' => $id,
            'company_id' => $companyB->id,
        ]);
    }

    public function test_admin_updating_another_admin_without_permission_field_preserves_target_permissions()
    {
        $editor = User::factory()->admin()->create();
        $target = User::factory()->admin()->create();

        $originalPermissions = $target->decodePermissions();
        $this->assertArrayHasKey('admin', $originalPermissions, 'Target should have admin permission set');

        $this->actingAs($editor)
            ->put(route('users.update', $target), [
                'first_name' => $target->first_name,
                'username' => $target->username,
                // 'permission' intentionally omitted — the vulnerable path
            ])
            ->assertRedirect();

        $this->assertEquals(
            $originalPermissions,
            $target->fresh()->decodePermissions(),
            'Target admin permissions should be unchanged when permission field is absent'
        );
    }

    public function test_non_admin_updating_regular_user_without_permission_field_preserves_granular_permissions()
    {
        $editor = User::factory()->editUsers()->create();
        $target = User::factory()->create([
            'permissions' => json_encode(['hardware.view' => '1', 'reports.view' => '1']),
        ]);

        $this->actingAs($editor)
            ->put(route('users.update', $target), [
                'first_name' => $target->first_name,
                'username' => $target->username,
                // 'permission' intentionally omitted
            ])
            ->assertRedirect();

        $permissions = $target->fresh()->decodePermissions();
        $this->assertEquals('1', $permissions['hardware.view'], 'hardware.view should be preserved');
        $this->assertEquals('1', $permissions['reports.view'], 'reports.view should be preserved');
    }

    public function test_admin_updating_another_admin_with_permission_field_can_change_permissions()
    {
        $editor = User::factory()->admin()->create();
        $target = User::factory()->admin()->create();

        $this->actingAs($editor)
            ->put(route('users.update', $target), [
                'first_name' => $target->first_name,
                'username' => $target->username,
                'permission' => ['admin' => '1', 'hardware.view' => '1'],
            ])
            ->assertRedirect();

        $permissions = $target->fresh()->decodePermissions();
        $this->assertEquals('1', $permissions['hardware.view'], 'Explicitly submitted permissions should be applied');
    }
}