<?php

declare(strict_types=1);

use App\Filament\Resources\FindingExceptionResource\Pages\ListFindingExceptions;
use App\Filament\Resources\FindingResource\Pages\ViewFinding;
use App\Models\Finding;
use App\Models\FindingException;
use App\Models\User;
use App\Services\Findings\FindingExceptionService;
use App\Services\Findings\FindingRiskGovernanceResolver;
use Filament\Facades\Filament;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Livewire\Livewire;

uses(RefreshDatabase::class);

it('shows an expiring governance cue on finding detail for entitled viewers', function (): void {
    [$viewer, $tenant] = createUserWithTenant(role: 'readonly');
    [$requester] = createUserWithTenant(tenant: $tenant, role: 'owner');
    $approver = User::factory()->create();
    createUserWithTenant(tenant: $tenant, user: $approver, role: 'owner');

    $finding = Finding::factory()->for($tenant)->create([
        'status' => Finding::STATUS_RISK_ACCEPTED,
    ]);

    FindingException::query()->create([
        'workspace_id' => (int) $tenant->workspace_id,
        'tenant_id' => (int) $tenant->getKey(),
        'finding_id' => (int) $finding->getKey(),
        'requested_by_user_id' => (int) $requester->getKey(),
        'owner_user_id' => (int) $requester->getKey(),
        'approved_by_user_id' => (int) $approver->getKey(),
        'status' => FindingException::STATUS_EXPIRING,
        'current_validity_state' => FindingException::VALIDITY_EXPIRING,
        'request_reason' => 'Short-lived exception while remediation is scheduled',
        'approval_reason' => 'Compensating controls accepted',
        'requested_at' => now()->subDays(8),
        'approved_at' => now()->subDays(7),
        'effective_from' => now()->subDays(7),
        'expires_at' => now()->addDays(2),
        'review_due_at' => now()->addDay(),
        'evidence_summary' => ['reference_count' => 0],
    ]);

    $this->actingAs($viewer);
    $tenant->makeCurrent();
    Filament::setTenant($tenant, true);

    Livewire::test(ViewFinding::class, ['record' => $finding->getKey()])
        ->assertSee('Risk governance')
        ->assertSee('Expiring');
});

it('shows a governance warning when a finding is marked as accepted risk without a valid exception', function (): void {
    [$viewer, $tenant] = createUserWithTenant(role: 'readonly');

    $finding = Finding::factory()->for($tenant)->create([
        'status' => Finding::STATUS_RISK_ACCEPTED,
    ]);

    $this->actingAs($viewer);
    $tenant->makeCurrent();
    Filament::setTenant($tenant, true);

    Livewire::test(ViewFinding::class, ['record' => $finding->getKey()])
        ->assertSee('Risk governance')
        ->assertSee('without a valid exception record');

    expect(app(FindingRiskGovernanceResolver::class)->resolveFindingState($finding->fresh()))
        ->toBe('risk_accepted_without_valid_exception');
});

it('surfaces expired and revoked exceptions as governance warnings instead of valid accepted risk', function (string $mode, string $expectedWarning, string $expectedState): void {
    [$viewer, $tenant] = createUserWithTenant(role: 'readonly');
    [$requester] = createUserWithTenant(tenant: $tenant, role: 'owner');
    $approver = User::factory()->create();
    createUserWithTenant(tenant: $tenant, user: $approver, role: 'owner', workspaceRole: 'manager');

    $finding = Finding::factory()->for($tenant)->create([
        'status' => Finding::STATUS_RISK_ACCEPTED,
    ]);

    /** @var FindingExceptionService $service */
    $service = app(FindingExceptionService::class);

    $requested = $service->request($finding, $tenant, $requester, [
        'owner_user_id' => (int) $requester->getKey(),
        'request_reason' => 'Temporary exception',
        'review_due_at' => now()->addDays(5)->toDateTimeString(),
        'expires_at' => now()->addDays(14)->toDateTimeString(),
    ]);

    $exception = $service->approve($requested, $approver, [
        'effective_from' => now()->subDays(10)->toDateTimeString(),
        'expires_at' => $mode === 'expired'
            ? now()->subDay()->toDateTimeString()
            : now()->addDays(14)->toDateTimeString(),
        'approval_reason' => 'Approved with controls',
    ]);

    if ($mode === 'expired') {
        $exception = app(FindingRiskGovernanceResolver::class)->syncExceptionState($exception->fresh());
    } else {
        $exception = $service->revoke($exception->fresh(), $requester, [
            'revocation_reason' => 'Compensating controls were removed.',
        ]);
    }

    $this->actingAs($viewer);
    $tenant->makeCurrent();
    Filament::setTenant($tenant, true);

    Livewire::test(ViewFinding::class, ['record' => $finding->getKey()])
        ->assertSee($expectedWarning);

    Livewire::test(ListFindingExceptions::class)
        ->assertSee($expectedWarning);

    expect(app(FindingRiskGovernanceResolver::class)->resolveFindingState($finding->fresh('findingException')))
        ->toBe($expectedState);
})->with([
    'expired exception' => ['expired', 'expired and no longer governs accepted risk', 'expired_exception'],
    'revoked exception' => ['revoked', 'was revoked and no longer governs accepted risk', 'revoked_exception'],
]);

it('keeps historical exceptions visible while requiring a fresh decision after a finding reopens', function (): void {
    [$viewer, $tenant] = createUserWithTenant(role: 'readonly');
    [$requester] = createUserWithTenant(tenant: $tenant, role: 'owner');
    $approver = User::factory()->create();
    createUserWithTenant(tenant: $tenant, user: $approver, role: 'owner', workspaceRole: 'manager');

    $finding = Finding::factory()->for($tenant)->create([
        'status' => Finding::STATUS_RISK_ACCEPTED,
    ]);

    /** @var FindingExceptionService $service */
    $service = app(FindingExceptionService::class);

    $requested = $service->request($finding, $tenant, $requester, [
        'owner_user_id' => (int) $requester->getKey(),
        'request_reason' => 'Temporary exception while remediation is scheduled',
        'review_due_at' => now()->addDays(7)->toDateTimeString(),
        'expires_at' => now()->addDays(20)->toDateTimeString(),
    ]);

    $service->approve($requested, $approver, [
        'effective_from' => now()->subDay()->toDateTimeString(),
        'expires_at' => now()->addDays(20)->toDateTimeString(),
        'approval_reason' => 'Approved with controls',
    ]);

    $finding->forceFill([
        'status' => Finding::STATUS_REOPENED,
        'reopened_at' => now(),
        'closed_reason' => null,
        'closed_at' => null,
    ])->save();

    $this->actingAs($viewer);
    $tenant->makeCurrent();
    Filament::setTenant($tenant, true);

    Livewire::test(ViewFinding::class, ['record' => $finding->getKey()])
        ->assertSee('fresh decision is required');

    Livewire::test(ListFindingExceptions::class)
        ->assertSee('fresh decision is required');

    expect(app(FindingRiskGovernanceResolver::class)->resolveFindingState($finding->fresh('findingException')))
        ->toBe('ungoverned');
});