<?php

declare(strict_types=1);

namespace Tests\Feature\PersonIdentity;

use App\Enums\IdentityMatchConfidence;
use App\Enums\IdentityMatchMethod;
use App\Enums\IdentityMatchStatus;
use App\Models\CrowdType;
use App\Models\Event;
use App\Models\Organisation;
use App\Models\Person;
use App\Models\PersonIdentityMatch;
use App\Models\User;
use App\Services\PersonIdentityService;
use Database\Seeders\RoleSeeder;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Laravel\Sanctum\Sanctum;
use Tests\TestCase;

class PersonIdentityMatchTest extends TestCase
{
    use RefreshDatabase;

    private User $orgAdmin;
    private User $outsider;
    private Organisation $organisation;
    private Organisation $otherOrganisation;
    private Event $event;
    private CrowdType $crowdType;
    private CrowdType $crewType;
    private PersonIdentityService $identityService;

    protected function setUp(): void
    {
        parent::setUp();
        $this->seed(RoleSeeder::class);

        $this->organisation = Organisation::factory()->create();
        $this->otherOrganisation = Organisation::factory()->create();

        $this->orgAdmin = User::factory()->create();
        $this->organisation->users()->attach($this->orgAdmin, ['role' => 'org_admin']);

        $this->outsider = User::factory()->create();
        $this->otherOrganisation->users()->attach($this->outsider, ['role' => 'org_admin']);

        $this->event = Event::factory()->create(['organisation_id' => $this->organisation->id]);

        $this->crowdType = CrowdType::factory()->systemType('VOLUNTEER')->create([
            'organisation_id' => $this->organisation->id,
        ]);

        $this->crewType = CrowdType::factory()->systemType('CREW')->create([
            'organisation_id' => $this->organisation->id,
        ]);

        $this->identityService = app(PersonIdentityService::class);
    }

    // ──────────────────────────────────────────────────────
    // Detection tests (10)
    // ──────────────────────────────────────────────────────

    public function test_email_match_person_email_equals_user_email_in_same_org(): void
    {
        $matchUser = User::factory()->create(['email' => 'jan@example.nl']);
        $this->organisation->users()->attach($matchUser, ['role' => 'org_member']);

        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'jan@example.nl',
            'user_id' => null,
        ]);

        $matches = $this->identityService->detectMatches($person);

        $this->assertCount(1, $matches);
        $this->assertEquals(IdentityMatchMethod::EMAIL, $matches->first()->matched_on);
        $this->assertEquals(IdentityMatchConfidence::HIGH, $matches->first()->confidence);
        $this->assertEquals(IdentityMatchStatus::PENDING, $matches->first()->status);
    }

    public function test_email_match_different_org_creates_no_match(): void
    {
        $matchUser = User::factory()->create(['email' => 'foreign@example.nl']);
        $this->otherOrganisation->users()->attach($matchUser, ['role' => 'org_member']);

        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'foreign@example.nl',
            'user_id' => null,
        ]);

        $matches = $this->identityService->detectMatches($person);

        $this->assertCount(0, $matches);
    }

    public function test_no_match_when_person_already_has_user_id(): void
    {
        $linkedUser = User::factory()->create(['email' => 'linked@example.nl']);
        $this->organisation->users()->attach($linkedUser, ['role' => 'org_member']);

        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'linked@example.nl',
            'user_id' => $linkedUser->id,
        ]);

        $matches = $this->identityService->detectMatches($person);

        $this->assertCount(0, $matches);
    }

    public function test_no_match_when_person_email_matches_no_user(): void
    {
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'nomatch@nowhere.test',
            'first_name' => 'Unique',
            'last_name' => 'Nobody',
            'user_id' => null,
        ]);

        $matches = $this->identityService->detectMatches($person);

        $this->assertCount(0, $matches);
    }

    public function test_fuzzy_name_match_similar_first_name(): void
    {
        $matchUser = User::factory()->create([
            'first_name' => 'Bert',
            'last_name' => 'Hausmans',
            'email' => 'bert@org.nl',
        ]);
        $this->organisation->users()->attach($matchUser, ['role' => 'org_member']);

        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => 'Burt',
            'last_name' => 'Hausmans',
            'email' => 'burt@different.nl',
            'user_id' => null,
        ]);

        $matches = $this->identityService->detectMatches($person);

        $this->assertCount(1, $matches);
        $this->assertEquals(IdentityMatchMethod::NAME_FUZZY, $matches->first()->matched_on);
        $this->assertEquals(IdentityMatchConfidence::MEDIUM, $matches->first()->confidence);
    }

    public function test_no_fuzzy_match_when_names_too_different(): void
    {
        $matchUser = User::factory()->create([
            'first_name' => 'Jan',
            'last_name' => 'de Vries',
            'email' => 'jan@org.nl',
        ]);
        $this->organisation->users()->attach($matchUser, ['role' => 'org_member']);

        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => 'Johannes',
            'last_name' => 'de Vries',
            'email' => 'johannes@different.nl',
            'user_id' => null,
        ]);

        $matches = $this->identityService->detectMatches($person);

        $this->assertCount(0, $matches);
    }

    public function test_fuzzy_name_match_with_dob_upgrades_to_high(): void
    {
        $dob = '1990-06-15';
        $matchUser = User::factory()->create([
            'first_name' => 'Lisa',
            'last_name' => 'Bakker',
            'email' => 'lisa@org.nl',
            'date_of_birth' => $dob,
        ]);
        $this->organisation->users()->attach($matchUser, ['role' => 'org_member']);

        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => 'Liesa',
            'last_name' => 'Bakker',
            'email' => 'liesa@different.nl',
            'date_of_birth' => $dob,
            'user_id' => null,
        ]);

        $matches = $this->identityService->detectMatches($person);

        $this->assertCount(1, $matches);
        $this->assertEquals(IdentityMatchConfidence::HIGH, $matches->first()->confidence);
        $this->assertContains('date_of_birth', $matches->first()->match_details['matched_fields']);
    }

    public function test_fuzzy_name_without_dob_stays_medium(): void
    {
        $matchUser = User::factory()->create([
            'first_name' => 'Lisa',
            'last_name' => 'Bakker',
            'email' => 'lisa@org.nl',
            'date_of_birth' => '1990-06-15',
        ]);
        $this->organisation->users()->attach($matchUser, ['role' => 'org_member']);

        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => 'Liesa',
            'last_name' => 'Bakker',
            'email' => 'liesa@different.nl',
            'date_of_birth' => '1991-01-01', // different DOB
            'user_id' => null,
        ]);

        $matches = $this->identityService->detectMatches($person);

        $this->assertCount(1, $matches);
        $this->assertEquals(IdentityMatchConfidence::MEDIUM, $matches->first()->confidence);
    }

    public function test_previously_dismissed_pair_not_re_suggested(): void
    {
        $matchUser = User::factory()->create(['email' => 'dismissed@example.nl']);
        $this->organisation->users()->attach($matchUser, ['role' => 'org_member']);

        // Create person with different email first (so observer doesn't match on create)
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'different@example.nl',
            'first_name' => 'Unique',
            'last_name' => 'TestPerson',
            'user_id' => null,
        ]);

        // Create and dismiss match manually
        PersonIdentityMatch::factory()->dismissed()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser->id,
        ]);

        // Update email to match the user
        $person->update(['email' => 'dismissed@example.nl']);
        $person->refresh();

        // Calling detectMatches should NOT re-suggest the dismissed pair
        $matches = $this->identityService->detectMatches($person);

        $this->assertCount(0, $matches);
    }

    public function test_observer_fires_on_person_create(): void
    {
        $matchUser = User::factory()->create(['email' => 'observer@example.nl']);
        $this->organisation->users()->attach($matchUser, ['role' => 'org_member']);

        Sanctum::actingAs($this->orgAdmin);

        $this->postJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons", [
            'crowd_type_id' => $this->crowdType->id,
            'first_name' => 'Test',
            'last_name' => 'Observer',
            'email' => 'observer@example.nl',
        ]);

        $this->assertDatabaseHas('person_identity_matches', [
            'matched_user_id' => $matchUser->id,
            'matched_on' => IdentityMatchMethod::EMAIL->value,
            'status' => IdentityMatchStatus::PENDING->value,
        ]);
    }

    // ──────────────────────────────────────────────────────
    // Confirm tests (5)
    // ──────────────────────────────────────────────────────

    public function test_confirm_pending_sets_user_id_and_status(): void
    {
        $matchUser = User::factory()->create(['email' => 'confirm@example.nl']);
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'confirm@example.nl',
            'user_id' => null,
        ]);

        $match = PersonIdentityMatch::factory()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/{$match->id}/confirm"
        );

        $response->assertOk();

        $person->refresh();
        $match->refresh();

        $this->assertEquals($matchUser->id, $person->user_id);
        $this->assertEquals(IdentityMatchStatus::CONFIRMED, $match->status);
        $this->assertEquals($this->orgAdmin->id, $match->confirmed_by_user_id);
        $this->assertNotNull($match->confirmed_at);
    }

    public function test_confirm_dismisses_other_pending_matches(): void
    {
        $matchUser1 = User::factory()->create();
        $matchUser2 = User::factory()->create();
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);

        $match1 = PersonIdentityMatch::factory()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser1->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        $match2 = PersonIdentityMatch::factory()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser2->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        $this->identityService->confirmMatch($match1, $this->orgAdmin);

        $match2->refresh();
        $this->assertEquals(IdentityMatchStatus::DISMISSED, $match2->status);
        $this->assertEquals($this->orgAdmin->id, $match2->dismissed_by_user_id);
    }

    public function test_confirm_when_user_already_linked_same_crowd_type_fails(): void
    {
        $matchUser = User::factory()->create();

        // Already linked with same crowd type
        Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => $matchUser->id,
        ]);

        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);

        $match = PersonIdentityMatch::factory()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/{$match->id}/confirm"
        );

        $response->assertStatus(422);
    }

    public function test_confirm_non_pending_fails(): void
    {
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);

        $match = PersonIdentityMatch::factory()->confirmed()->create([
            'person_id' => $person->id,
            'matched_user_id' => User::factory()->create()->id,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/{$match->id}/confirm"
        );

        $response->assertStatus(422);
    }

    public function test_confirm_triggers_tag_sync(): void
    {
        $matchUser = User::factory()->create(['email' => 'tags@example.nl']);
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'tags@example.nl',
            'user_id' => null,
        ]);

        $match = PersonIdentityMatch::factory()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        // Confirm — should not throw even if no tags exist
        $this->identityService->confirmMatch($match, $this->orgAdmin);

        $person->refresh();
        $this->assertEquals($matchUser->id, $person->user_id);
    }

    // ──────────────────────────────────────────────────────
    // Dismiss tests (2)
    // ──────────────────────────────────────────────────────

    public function test_dismiss_pending_sets_status_dismissed(): void
    {
        $matchUser = User::factory()->create(['email' => 'dismiss@example.nl']);
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'dismiss@example.nl',
            'user_id' => null,
        ]);

        $match = PersonIdentityMatch::factory()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/{$match->id}/dismiss"
        );

        $response->assertOk();

        $match->refresh();
        $this->assertEquals(IdentityMatchStatus::DISMISSED, $match->status);
        $this->assertEquals($this->orgAdmin->id, $match->dismissed_by_user_id);
        $this->assertNotNull($match->dismissed_at);
        $this->assertNull($person->fresh()->user_id);
    }

    public function test_dismiss_non_pending_fails(): void
    {
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);

        $match = PersonIdentityMatch::factory()->dismissed()->create([
            'person_id' => $person->id,
            'matched_user_id' => User::factory()->create()->id,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/{$match->id}/dismiss"
        );

        $response->assertStatus(422);
    }

    // ──────────────────────────────────────────────────────
    // Revert tests (3)
    // ──────────────────────────────────────────────────────

    public function test_revert_confirmed_clears_user_id_and_sets_reverted(): void
    {
        $matchUser = User::factory()->create();
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => $matchUser->id,
        ]);

        $match = PersonIdentityMatch::factory()->confirmed()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser->id,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/{$match->id}/revert"
        );

        $response->assertOk();

        $person->refresh();
        $match->refresh();

        $this->assertNull($person->user_id);
        $this->assertEquals(IdentityMatchStatus::REVERTED, $match->status);
        $this->assertEquals($this->orgAdmin->id, $match->reverted_by_user_id);
        $this->assertNotNull($match->reverted_at);
    }

    public function test_revert_non_confirmed_fails(): void
    {
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);

        $match = PersonIdentityMatch::factory()->create([
            'person_id' => $person->id,
            'matched_user_id' => User::factory()->create()->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/{$match->id}/revert"
        );

        $response->assertStatus(422);
    }

    public function test_revert_creates_activity_log(): void
    {
        $matchUser = User::factory()->create();
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => $matchUser->id,
        ]);

        $match = PersonIdentityMatch::factory()->confirmed()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser->id,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/{$match->id}/revert"
        )->assertOk();

        $this->assertDatabaseHas('activity_log', [
            'description' => 'person.identity.match_reverted',
            'causer_id' => $this->orgAdmin->id,
            'subject_id' => $person->id,
        ]);
    }

    // ──────────────────────────────────────────────────────
    // Bulk confirm tests (2)
    // ──────────────────────────────────────────────────────

    public function test_bulk_confirm_multiple_matches(): void
    {
        $matches = [];
        for ($i = 0; $i < 3; $i++) {
            $matchUser = User::factory()->create();
            $person = Person::factory()->create([
                'event_id' => $this->event->id,
                'crowd_type_id' => $this->crowdType->id,
                'email' => "bulk{$i}@example.nl",
                'user_id' => null,
            ]);
            $matches[] = PersonIdentityMatch::factory()->create([
                'person_id' => $person->id,
                'matched_user_id' => $matchUser->id,
                'status' => IdentityMatchStatus::PENDING,
            ]);
        }

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/bulk-confirm",
            ['match_ids' => collect($matches)->pluck('id')->toArray()]
        );

        $response->assertOk();
        $this->assertEquals(3, $response->json('confirmed'));
        $this->assertEmpty($response->json('errors'));
    }

    public function test_bulk_confirm_skips_conflicts(): void
    {
        $matchUser1 = User::factory()->create();
        $person1 = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);
        $match1 = PersonIdentityMatch::factory()->create([
            'person_id' => $person1->id,
            'matched_user_id' => $matchUser1->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        // Match 2: user already linked in same event with same crowd type → should error
        $matchUser2 = User::factory()->create();
        Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => $matchUser2->id,
        ]);
        $person2 = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);
        $match2 = PersonIdentityMatch::factory()->create([
            'person_id' => $person2->id,
            'matched_user_id' => $matchUser2->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/bulk-confirm",
            ['match_ids' => [$match1->id, $match2->id]]
        );

        $response->assertOk();
        $this->assertEquals(1, $response->json('confirmed'));
        $this->assertCount(1, $response->json('errors'));
    }

    // ──────────────────────────────────────────────────────
    // Manual link tests (4)
    // ──────────────────────────────────────────────────────

    public function test_manual_link_sets_user_id_and_creates_match(): void
    {
        $targetUser = User::factory()->create();
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons/{$person->id}/manual-link",
            ['user_id' => $targetUser->id]
        );

        $response->assertOk();

        $person->refresh();
        $this->assertEquals($targetUser->id, $person->user_id);

        $this->assertDatabaseHas('person_identity_matches', [
            'person_id' => $person->id,
            'matched_user_id' => $targetUser->id,
            'matched_on' => IdentityMatchMethod::MANUAL->value,
            'confidence' => IdentityMatchConfidence::HIGH->value,
            'status' => IdentityMatchStatus::CONFIRMED->value,
        ]);
    }

    public function test_manual_link_already_linked_person_fails(): void
    {
        $existingUser = User::factory()->create();
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => $existingUser->id,
        ]);

        $newUser = User::factory()->create();

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons/{$person->id}/manual-link",
            ['user_id' => $newUser->id]
        );

        $response->assertStatus(422);
    }

    public function test_manual_link_user_already_at_event_same_crowd_type_fails(): void
    {
        $targetUser = User::factory()->create();

        // User already linked at event with same crowd type
        Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => $targetUser->id,
        ]);

        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons/{$person->id}/manual-link",
            ['user_id' => $targetUser->id]
        );

        $response->assertStatus(422);
    }

    public function test_manual_link_user_at_event_different_crowd_type_succeeds(): void
    {
        $targetUser = User::factory()->create();

        // User linked as CREW
        Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crewType->id,
            'user_id' => $targetUser->id,
        ]);

        // Try to link as VOLUNTEER (different crowd type)
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons/{$person->id}/manual-link",
            ['user_id' => $targetUser->id]
        );

        $response->assertOk();

        $person->refresh();
        $this->assertEquals($targetUser->id, $person->user_id);
    }

    // ──────────────────────────────────────────────────────
    // Unlink tests (3)
    // ──────────────────────────────────────────────────────

    public function test_unlink_via_confirmed_match_reverts(): void
    {
        $matchUser = User::factory()->create();
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => $matchUser->id,
        ]);

        PersonIdentityMatch::factory()->confirmed()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser->id,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons/{$person->id}/unlink"
        );

        $response->assertOk();
        $this->assertNull($person->fresh()->user_id);
    }

    public function test_unlink_without_match_record_works(): void
    {
        $matchUser = User::factory()->create();
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => $matchUser->id,
        ]);

        // No match record — direct link
        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons/{$person->id}/unlink"
        );

        $response->assertOk();
        $this->assertNull($person->fresh()->user_id);
    }

    public function test_unlink_not_linked_person_fails(): void
    {
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons/{$person->id}/unlink"
        );

        $response->assertStatus(422);
    }

    // ──────────────────────────────────────────────────────
    // Authorization tests (2)
    // ──────────────────────────────────────────────────────

    public function test_unauthenticated_cannot_access_matches(): void
    {
        $response = $this->getJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches"
        );

        $response->assertUnauthorized();
    }

    public function test_wrong_org_user_cannot_confirm(): void
    {
        $matchUser = User::factory()->create();
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'user_id' => null,
        ]);

        $match = PersonIdentityMatch::factory()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        Sanctum::actingAs($this->outsider);

        $response = $this->postJson(
            "/api/v1/organisations/{$this->organisation->id}/identity-matches/{$match->id}/confirm"
        );

        $response->assertForbidden();
    }

    // ──────────────────────────────────────────────────────
    // PersonResource tests
    // ──────────────────────────────────────────────────────

    public function test_person_resource_includes_has_user_account(): void
    {
        $matchUser = User::factory()->create();
        Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'linked@example.nl',
            'user_id' => $matchUser->id,
        ]);

        Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'unlinked@example.nl',
            'user_id' => null,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->getJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons");

        $response->assertOk();

        $linkedPerson = collect($response->json('data'))->firstWhere('email', 'linked@example.nl');
        $unlinkedPerson = collect($response->json('data'))->firstWhere('email', 'unlinked@example.nl');

        $this->assertTrue($linkedPerson['has_user_account']);
        $this->assertFalse($unlinkedPerson['has_user_account']);
    }

    public function test_person_resource_includes_pending_identity_match(): void
    {
        $matchUser = User::factory()->create(['email' => 'inline@example.nl']);
        $person = Person::factory()->create([
            'event_id' => $this->event->id,
            'crowd_type_id' => $this->crowdType->id,
            'email' => 'inline@example.nl',
            'user_id' => null,
        ]);

        PersonIdentityMatch::factory()->create([
            'person_id' => $person->id,
            'matched_user_id' => $matchUser->id,
            'status' => IdentityMatchStatus::PENDING,
        ]);

        Sanctum::actingAs($this->orgAdmin);

        $response = $this->getJson("/api/v1/organisations/{$this->organisation->id}/events/{$this->event->id}/persons");

        $response->assertOk();

        $personData = collect($response->json('data'))->firstWhere('email', 'inline@example.nl');

        $this->assertNotNull($personData);
        $this->assertArrayHasKey('pending_identity_match', $personData);
        $this->assertEquals($matchUser->id, $personData['pending_identity_match']['matched_user']['id']);
    }
}