<?php

declare(strict_types=1);

namespace Tests\Feature\MultiTenancy;

use App\Enums\FormBuilder\FormFieldType;
use App\Enums\FormBuilder\FormWebhookDeliveryStatus;
use App\Enums\IdentityMatchConfidence;
use App\Enums\IdentityMatchMethod;
use App\Enums\IdentityMatchStatus;
use App\Exceptions\TenantScopeResolutionException;
use App\Models\CrowdType;
use App\Models\Event;
use App\Models\FestivalSection;
use App\Models\FormBuilder\FormField;
use App\Models\FormBuilder\FormSchema;
use App\Models\FormBuilder\FormSchemaSection;
use App\Models\FormBuilder\FormSchemaWebhook;
use App\Models\FormBuilder\FormSubmission;
use App\Models\FormBuilder\FormSubmissionDelegation;
use App\Models\FormBuilder\FormSubmissionSectionStatus;
use App\Models\FormBuilder\FormValue;
use App\Models\FormBuilder\FormValueOption;
use App\Models\FormBuilder\FormWebhookDelivery;
use App\Models\Organisation;
use App\Models\Person;
use App\Models\PersonIdentityMatch;
use App\Models\PersonSectionPreference;
use App\Models\Scopes\OrganisationScope;
use App\Models\Shift;
use App\Models\ShiftAssignment;
use App\Models\ShiftWaitlist;
use App\Models\TimeSlot;
use App\Models\User;
use App\Models\VolunteerAvailability;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Routing\Route;
use Tests\TestCase;

/**
 * WS-4 Commit 3 coverage — addendum Q2 FK-chain scope registration.
 *
 * Two fully-populated tenants (orgA, orgB); for each of the 14 newly-
 * registered models, a query scoped to orgA must never surface orgB
 * rows. `withoutGlobalScope` must continue to expose everything for
 * admin-wide lookups. The 3-hop max and deepest real chain
 * (FormValueOption → FormValue → FormSubmission → organisation_id)
 * are exercised explicitly.
 */
final class ScopeLeakageTest extends TestCase
{
    use RefreshDatabase;

    private Organisation $orgA;

    private Organisation $orgB;

    private Event $eventA;

    private Event $eventB;

    private FormSchema $schemaA;

    private FormSchema $schemaB;

    private FormSubmission $submissionA;

    private FormSubmission $submissionB;

    private Person $personA;

    private Person $personB;

    private FestivalSection $sectionA;

    private FestivalSection $sectionB;

    private Shift $shiftA;

    private Shift $shiftB;

    private TimeSlot $timeSlotA;

    private TimeSlot $timeSlotB;

    protected function setUp(): void
    {
        parent::setUp();
        $this->orgA = Organisation::factory()->create();
        $this->orgB = Organisation::factory()->create();

        $this->eventA = Event::factory()->for($this->orgA)->create();
        $this->eventB = Event::factory()->for($this->orgB)->create();

        $this->sectionA = FestivalSection::factory()->for($this->eventA)->create();
        $this->sectionB = FestivalSection::factory()->for($this->eventB)->create();

        $this->timeSlotA = TimeSlot::factory()->for($this->eventA)->create();
        $this->timeSlotB = TimeSlot::factory()->for($this->eventB)->create();

        $this->shiftA = Shift::factory()->for($this->sectionA, 'festivalSection')->for($this->timeSlotA, 'timeSlot')->create();
        $this->shiftB = Shift::factory()->for($this->sectionB, 'festivalSection')->for($this->timeSlotB, 'timeSlot')->create();

        $crowdA = CrowdType::factory()->for($this->orgA)->create();
        $crowdB = CrowdType::factory()->for($this->orgB)->create();

        $this->personA = Person::factory()->for($this->eventA)->for($crowdA)->create();
        $this->personB = Person::factory()->for($this->eventB)->for($crowdB)->create();

        $this->schemaA = FormSchema::factory()->for($this->orgA)->create();
        $this->schemaB = FormSchema::factory()->for($this->orgB)->create();

        $this->submissionA = FormSubmission::factory()->for($this->schemaA, 'schema')->create();
        $this->submissionB = FormSubmission::factory()->for($this->schemaB, 'schema')->create();
    }

    private function withOrgRoute(Organisation $org): void
    {
        $route = new Route(['GET'], '/_test', static fn () => null);
        $route->bind(request());
        $route->setParameter('organisation', $org);
        request()->setRouteResolver(static fn () => $route);
    }

    // ------------------------------------------------------------------
    // D-03: Nine form-builder child models
    // ------------------------------------------------------------------

    public function test_form_schema_section_scope_blocks_cross_org(): void
    {
        FormSchemaSection::factory()->for($this->schemaA, 'schema')->create();
        FormSchemaSection::factory()->for($this->schemaB, 'schema')->create();

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, FormSchemaSection::query()->count());
        $this->assertSame(2, FormSchemaSection::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_form_field_scope_blocks_cross_org(): void
    {
        FormField::factory()->for($this->schemaA, 'schema')->create();
        FormField::factory()->for($this->schemaB, 'schema')->create();

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, FormField::query()->count());
        $this->assertSame(2, FormField::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_form_submission_scope_blocks_cross_org_via_denormalized_column(): void
    {
        // Commit 2 added organisation_id as a direct column — this model
        // uses the `column` strategy, not `via`. Proves the column
        // strategy still works alongside the FK-chain.
        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, FormSubmission::query()->count());
        $this->assertSame(2, FormSubmission::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_form_value_scope_blocks_cross_org(): void
    {
        $fieldA = FormField::factory()->for($this->schemaA, 'schema')->create();
        $fieldB = FormField::factory()->for($this->schemaB, 'schema')->create();

        FormValue::create([
            'form_submission_id' => $this->submissionA->id,
            'form_field_id' => $fieldA->id,
            'value' => ['value' => 'a'],
            'value_anonymised' => false,
        ]);
        FormValue::create([
            'form_submission_id' => $this->submissionB->id,
            'form_field_id' => $fieldB->id,
            'value' => ['value' => 'b'],
            'value_anonymised' => false,
        ]);

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, FormValue::query()->count());
        $this->assertSame(2, FormValue::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_form_value_option_scope_handles_three_hop_chain(): void
    {
        // Deepest real chain in the codebase:
        // FormValueOption → FormValue → FormSubmission → organisation_id.
        $fieldA = FormField::factory()->for($this->schemaA, 'schema')->create([
            'field_type' => FormFieldType::MULTISELECT->value,
        ]);
        $fieldB = FormField::factory()->for($this->schemaB, 'schema')->create([
            'field_type' => FormFieldType::MULTISELECT->value,
        ]);

        $valueA = FormValue::create([
            'form_submission_id' => $this->submissionA->id,
            'form_field_id' => $fieldA->id,
            'value' => ['x'],
            'value_anonymised' => false,
        ]);
        $valueB = FormValue::create([
            'form_submission_id' => $this->submissionB->id,
            'form_field_id' => $fieldB->id,
            'value' => ['y'],
            'value_anonymised' => false,
        ]);

        FormValueOption::create([
            'form_value_id' => $valueA->id,
            'form_field_id' => $fieldA->id,
            'form_submission_id' => $this->submissionA->id,
            'option_value' => 'x',
        ]);
        FormValueOption::create([
            'form_value_id' => $valueB->id,
            'form_field_id' => $fieldB->id,
            'form_submission_id' => $this->submissionB->id,
            'option_value' => 'y',
        ]);

        $this->withOrgRoute($this->orgA);
        $this->assertSame(
            1,
            FormValueOption::query()->count(),
            'Three-hop chain must filter: FormValueOption → FormValue → FormSubmission → organisation_id'
        );
        $this->assertSame(2, FormValueOption::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_form_submission_section_status_scope_blocks_cross_org(): void
    {
        $sectionA = FormSchemaSection::factory()->for($this->schemaA, 'schema')->create();
        $sectionB = FormSchemaSection::factory()->for($this->schemaB, 'schema')->create();

        FormSubmissionSectionStatus::factory()->create([
            'form_submission_id' => $this->submissionA->id,
            'form_schema_section_id' => $sectionA->id,
        ]);
        FormSubmissionSectionStatus::factory()->create([
            'form_submission_id' => $this->submissionB->id,
            'form_schema_section_id' => $sectionB->id,
        ]);

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, FormSubmissionSectionStatus::query()->count());
        $this->assertSame(2, FormSubmissionSectionStatus::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_form_submission_delegation_scope_blocks_cross_org(): void
    {
        $userA = User::factory()->create();
        $userB = User::factory()->create();

        FormSubmissionDelegation::create([
            'form_submission_id' => $this->submissionA->id,
            'delegated_to_user_id' => $userA->id,
            'delegated_by_user_id' => $userA->id,
            'granted_at' => now(),
        ]);
        FormSubmissionDelegation::create([
            'form_submission_id' => $this->submissionB->id,
            'delegated_to_user_id' => $userB->id,
            'delegated_by_user_id' => $userB->id,
            'granted_at' => now(),
        ]);

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, FormSubmissionDelegation::query()->count());
        $this->assertSame(2, FormSubmissionDelegation::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_form_schema_webhook_scope_blocks_cross_org(): void
    {
        FormSchemaWebhook::factory()->for($this->schemaA, 'schema')->create();
        FormSchemaWebhook::factory()->for($this->schemaB, 'schema')->create();

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, FormSchemaWebhook::query()->count());
        $this->assertSame(2, FormSchemaWebhook::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_form_webhook_delivery_scope_blocks_cross_org(): void
    {
        $webhookA = FormSchemaWebhook::factory()->for($this->schemaA, 'schema')->create();
        $webhookB = FormSchemaWebhook::factory()->for($this->schemaB, 'schema')->create();

        FormWebhookDelivery::create([
            'form_schema_webhook_id' => $webhookA->id,
            'form_submission_id' => $this->submissionA->id,
            'trigger_event' => 'submission.submitted',
            'status' => FormWebhookDeliveryStatus::PENDING->value,
            'attempts' => 0,
            'payload_snapshot' => ['x' => 1],
        ]);
        FormWebhookDelivery::create([
            'form_schema_webhook_id' => $webhookB->id,
            'form_submission_id' => $this->submissionB->id,
            'trigger_event' => 'submission.submitted',
            'status' => FormWebhookDeliveryStatus::PENDING->value,
            'attempts' => 0,
            'payload_snapshot' => ['y' => 1],
        ]);

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, FormWebhookDelivery::query()->count());
        $this->assertSame(2, FormWebhookDelivery::withoutGlobalScope(OrganisationScope::class)->count());
    }

    // ------------------------------------------------------------------
    // D-04 event-data subset: five models
    // ------------------------------------------------------------------

    public function test_shift_assignment_scope_blocks_cross_org(): void
    {
        ShiftAssignment::factory()
            ->for($this->shiftA)
            ->for($this->personA)
            ->for($this->timeSlotA)
            ->create();
        ShiftAssignment::factory()
            ->for($this->shiftB)
            ->for($this->personB)
            ->for($this->timeSlotB)
            ->create();

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, ShiftAssignment::query()->count());
        $this->assertSame(2, ShiftAssignment::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_shift_waitlist_scope_blocks_cross_org(): void
    {
        ShiftWaitlist::create([
            'shift_id' => $this->shiftA->id,
            'person_id' => $this->personA->id,
            'position' => 1,
            'added_at' => now(),
        ]);
        ShiftWaitlist::create([
            'shift_id' => $this->shiftB->id,
            'person_id' => $this->personB->id,
            'position' => 1,
            'added_at' => now(),
        ]);

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, ShiftWaitlist::query()->count());
        $this->assertSame(2, ShiftWaitlist::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_volunteer_availability_scope_blocks_cross_org(): void
    {
        VolunteerAvailability::create([
            'person_id' => $this->personA->id,
            'time_slot_id' => $this->timeSlotA->id,
            'preference_level' => 3,
            'submitted_at' => now(),
        ]);
        VolunteerAvailability::create([
            'person_id' => $this->personB->id,
            'time_slot_id' => $this->timeSlotB->id,
            'preference_level' => 3,
            'submitted_at' => now(),
        ]);

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, VolunteerAvailability::query()->count());
        $this->assertSame(2, VolunteerAvailability::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_person_section_preference_scope_blocks_cross_org(): void
    {
        PersonSectionPreference::create([
            'person_id' => $this->personA->id,
            'festival_section_id' => $this->sectionA->id,
            'priority' => 1,
        ]);
        PersonSectionPreference::create([
            'person_id' => $this->personB->id,
            'festival_section_id' => $this->sectionB->id,
            'priority' => 1,
        ]);

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, PersonSectionPreference::query()->count());
        $this->assertSame(2, PersonSectionPreference::withoutGlobalScope(OrganisationScope::class)->count());
    }

    public function test_person_identity_match_scope_blocks_cross_org(): void
    {
        $matchedUserA = User::factory()->create();
        $matchedUserB = User::factory()->create();

        PersonIdentityMatch::create([
            'person_id' => $this->personA->id,
            'matched_user_id' => $matchedUserA->id,
            'matched_on' => IdentityMatchMethod::EMAIL,
            'confidence' => IdentityMatchConfidence::HIGH,
            'status' => IdentityMatchStatus::PENDING,
            'match_details' => [],
        ]);
        PersonIdentityMatch::create([
            'person_id' => $this->personB->id,
            'matched_user_id' => $matchedUserB->id,
            'matched_on' => IdentityMatchMethod::EMAIL,
            'confidence' => IdentityMatchConfidence::HIGH,
            'status' => IdentityMatchStatus::PENDING,
            'match_details' => [],
        ]);

        $this->withOrgRoute($this->orgA);
        $this->assertSame(1, PersonIdentityMatch::query()->count());
        $this->assertSame(2, PersonIdentityMatch::withoutGlobalScope(OrganisationScope::class)->count());
    }

    // ------------------------------------------------------------------
    // Resolver mechanics: legacy-bridge compatibility + hop limit
    // ------------------------------------------------------------------

    public function test_resolver_accepts_legacy_organisation_scope_column_bridge(): void
    {
        // PersonIdentityMatch → Person. Person uses the legacy
        // $organisationScopeColumn = 'event_id' bridge (not
        // tenantScopeStrategy()). The recursive resolver must treat it
        // as a terminal column strategy.
        $this->withOrgRoute($this->orgA);
        $this->assertInstanceOf(
            PersonIdentityMatch::class,
            PersonIdentityMatch::query()->getModel(),
            'Scope must boot on models whose parent uses the legacy property'
        );

        // Actually prove the chain works end-to-end: one row per org,
        // scoped query returns only the owned row.
        $matchedUserA = User::factory()->create();
        $matchedUserB = User::factory()->create();

        PersonIdentityMatch::create([
            'person_id' => $this->personA->id,
            'matched_user_id' => $matchedUserA->id,
            'matched_on' => IdentityMatchMethod::EMAIL,
            'confidence' => IdentityMatchConfidence::HIGH,
            'status' => IdentityMatchStatus::PENDING,
            'match_details' => [],
        ]);
        PersonIdentityMatch::create([
            'person_id' => $this->personB->id,
            'matched_user_id' => $matchedUserB->id,
            'matched_on' => IdentityMatchMethod::EMAIL,
            'confidence' => IdentityMatchConfidence::HIGH,
            'status' => IdentityMatchStatus::PENDING,
            'match_details' => [],
        ]);
        $this->assertSame(1, PersonIdentityMatch::query()->count());
    }

    public function test_resolver_resolves_four_hop_chain_within_cap(): void
    {
        // 4 via-hops + terminal column = legitimate tree inside the cap.
        // Build the query and assert no exception; the SQL references every
        // intermediate table, proving the walker reached the terminal.
        $scope = new OrganisationScope($this->orgA->id);
        $builder = (new FourHopLevel1())::query();

        $scope->apply($builder, new FourHopLevel1());

        $sql = $builder->toSql();
        $this->assertStringContainsString('form_value_options', $sql);
        $this->assertStringContainsString('form_values', $sql);
        $this->assertStringContainsString('form_submissions', $sql);
        $this->assertStringContainsString('form_schemas', $sql);
        $this->assertStringContainsString('organisation_id', $sql);
    }

    public function test_resolver_resolves_five_hop_chain_at_cap(): void
    {
        // 5 via-hops + terminal column — right at the cap ceiling.
        $scope = new OrganisationScope($this->orgA->id);
        $builder = (new FiveHopLevel1())::query();

        $scope->apply($builder, new FiveHopLevel1());

        $this->assertStringContainsString('organisation_id', $builder->toSql());
    }

    public function test_resolver_raises_when_chain_exceeds_cap(): void
    {
        // 6 via-hops — one past the cap of 5. Must raise.
        $scope = new OrganisationScope($this->orgA->id);
        $builder = (new SevenHopLevel1())::query();

        $this->expectException(TenantScopeResolutionException::class);
        $scope->apply($builder, new SevenHopLevel1());
    }
}

/**
 * Synthetic chain models for the scope-cap tests. Tables referenced
 * exist in the schema so query compilation succeeds; the intermediate
 * relations are never actually executed in these tests (we assert on
 * compiled SQL, not on rows).
 *
 * FourHopLevel1 → Level2 → Level3 → Level4 (terminal column).
 * FiveHopLevel1 → Level2 → Level3 → Level4 → Level5 (terminal column).
 * SevenHopLevel1 → ... → Level7 (terminal column) — exceeds cap=5.
 */
final class FourHopLevel1 extends Model
{
    protected $table = 'form_value_options';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => FourHopLevel2::class, 'fk' => 'form_value_id'];
    }
}

final class FourHopLevel2 extends Model
{
    protected $table = 'form_values';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => FourHopLevel3::class, 'fk' => 'form_submission_id'];
    }
}

final class FourHopLevel3 extends Model
{
    protected $table = 'form_submissions';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => FourHopLevel4::class, 'fk' => 'form_schema_id'];
    }
}

final class FourHopLevel4 extends Model
{
    protected $table = 'form_schemas';

    public static function tenantScopeStrategy(): array
    {
        return ['column' => 'organisation_id'];
    }
}

final class FiveHopLevel1 extends Model
{
    protected $table = 'form_value_options';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => FiveHopLevel2::class, 'fk' => 'form_value_id'];
    }
}

final class FiveHopLevel2 extends Model
{
    protected $table = 'form_values';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => FiveHopLevel3::class, 'fk' => 'form_submission_id'];
    }
}

final class FiveHopLevel3 extends Model
{
    protected $table = 'form_submissions';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => FiveHopLevel4::class, 'fk' => 'form_schema_id'];
    }
}

final class FiveHopLevel4 extends Model
{
    protected $table = 'form_schemas';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => FiveHopLevel5::class, 'fk' => 'id'];
    }
}

final class FiveHopLevel5 extends Model
{
    protected $table = 'form_schemas';

    public static function tenantScopeStrategy(): array
    {
        return ['column' => 'organisation_id'];
    }
}

final class SevenHopLevel1 extends Model
{
    protected $table = 'form_value_options';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => SevenHopLevel2::class, 'fk' => 'form_value_id'];
    }
}

final class SevenHopLevel2 extends Model
{
    protected $table = 'form_values';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => SevenHopLevel3::class, 'fk' => 'form_submission_id'];
    }
}

final class SevenHopLevel3 extends Model
{
    protected $table = 'form_submissions';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => SevenHopLevel4::class, 'fk' => 'form_schema_id'];
    }
}

final class SevenHopLevel4 extends Model
{
    protected $table = 'form_schemas';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => SevenHopLevel5::class, 'fk' => 'id'];
    }
}

final class SevenHopLevel5 extends Model
{
    protected $table = 'form_schemas';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => SevenHopLevel6::class, 'fk' => 'id'];
    }
}

final class SevenHopLevel6 extends Model
{
    protected $table = 'form_schemas';

    public static function tenantScopeStrategy(): array
    {
        return ['via' => SevenHopLevel7::class, 'fk' => 'id'];
    }
}

final class SevenHopLevel7 extends Model
{
    protected $table = 'form_schemas';

    public static function tenantScopeStrategy(): array
    {
        return ['column' => 'organisation_id'];
    }
}