<?php

namespace Tests\Feature;

use App\Models\Application;
use App\Models\ApplicationDocument;
use App\Models\Position;
use App\Models\PusatMengundi;
use App\Models\StaffAssignment;
use App\Models\User;
use Database\Seeders\DatabaseSeeder;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Storage;
use Tests\TestCase;

class DocumentDownloadAuthorizationTest extends TestCase
{
    use RefreshDatabase;

    // ── Admin path ──────────────────────────────────────────────────────

    public function test_admin_can_download_ic_document(): void
    {
        Storage::fake('local');
        $this->seed(DatabaseSeeder::class);

        $admin = User::query()->where('email', 'admin@prn.local')->firstOrFail();

        $this->actingAs($admin)
            ->get(route('admin.documents.download', $this->document('ic_document')))
            ->assertOk();
    }

    public function test_admin_can_download_bank_statement(): void
    {
        Storage::fake('local');
        $this->seed(DatabaseSeeder::class);

        $admin = User::query()->where('email', 'admin@prn.local')->firstOrFail();

        $this->actingAs($admin)
            ->get(route('admin.documents.download', $this->document('bank_statement')))
            ->assertOk();
    }

    public function test_unauthorized_role_cannot_access_admin_download_route(): void
    {
        Storage::fake('local');
        $this->seed(DatabaseSeeder::class);

        $ktm = User::query()->where('email', 'ktm@prn.local')->firstOrFail();

        $this->actingAs($ktm)
            ->get(route('admin.documents.download', $this->document('bank_statement')))
            ->assertForbidden();
    }

    // ── Finance path ─────────────────────────────────────────────────────

    public function test_finance_can_download_bank_statement(): void
    {
        Storage::fake('local');
        $this->seed(DatabaseSeeder::class);

        $finance = User::query()->where('email', 'kewangan@prn.local')->firstOrFail();

        $this->actingAs($finance)
            ->get(route('kewangan.documents.download', $this->document('bank_statement')))
            ->assertOk();
    }

    public function test_finance_cannot_download_ic_document_via_finance_route(): void
    {
        Storage::fake('local');
        $this->seed(DatabaseSeeder::class);

        $finance = User::query()->where('email', 'kewangan@prn.local')->firstOrFail();

        $this->actingAs($finance)
            ->get(route('kewangan.documents.download', $this->document('ic_document')))
            ->assertForbidden();
    }

    // ── PPM path ──────────────────────────────────────────────────────────

    public function test_ppm_can_download_ic_document_from_own_pusat(): void
    {
        Storage::fake('local');
        $this->seed(DatabaseSeeder::class);

        $ppm = User::query()->where('email', 'ppm@prn.local')->firstOrFail();
        $pusat = $this->ppmPusat($ppm);
        $document = $this->documentForPusat($pusat, 'ic_document');

        $this->actingAs($ppm)
            ->get(route('ppm.applications.documents.download', [
                'application' => $document->application->public_uuid,
                'document' => $document,
            ]))
            ->assertOk();
    }

    public function test_ppm_can_download_bank_statement_from_own_pusat(): void
    {
        Storage::fake('local');
        $this->seed(DatabaseSeeder::class);

        $ppm = User::query()->where('email', 'ppm@prn.local')->firstOrFail();
        $pusat = $this->ppmPusat($ppm);
        $document = $this->documentForPusat($pusat, 'bank_statement');

        $this->actingAs($ppm)
            ->get(route('ppm.applications.documents.download', [
                'application' => $document->application->public_uuid,
                'document' => $document,
            ]))
            ->assertOk();
    }

    public function test_ppm_cannot_download_document_from_another_pusat(): void
    {
        Storage::fake('local');
        $this->seed(DatabaseSeeder::class);

        $ppm = User::query()->where('email', 'ppm@prn.local')->firstOrFail();

        // Create a document belonging to a DIFFERENT pusat than PPM's assignment
        $otherPusat = PusatMengundi::factory()->create([
            'election_id' => PusatMengundi::query()->where('code', 'PM001')->value('election_id'),
            'daerah_mengundi_id' => PusatMengundi::query()->where('code', 'PM001')->value('daerah_mengundi_id'),
        ]);
        $document = $this->documentForPusat($otherPusat, 'ic_document');

        $this->actingAs($ppm)
            ->get(route('ppm.applications.documents.download', [
                'application' => $document->application->public_uuid,
                'document' => $document,
            ]))
            ->assertForbidden();
    }

    public function test_ppm_download_records_activity_log(): void
    {
        Storage::fake('local');
        $this->seed(DatabaseSeeder::class);

        $ppm = User::query()->where('email', 'ppm@prn.local')->firstOrFail();
        $pusat = $this->ppmPusat($ppm);
        $document = $this->documentForPusat($pusat, 'ic_document');

        $this->actingAs($ppm)
            ->get(route('ppm.applications.documents.download', [
                'application' => $document->application->public_uuid,
                'document' => $document,
            ]));

        $this->assertDatabaseHas('activity_log', [
            'log_name' => 'documents',
            'description' => 'document_downloaded_by_ppm',
            'causer_id' => $ppm->id,
        ]);
    }

    // ── Helpers ───────────────────────────────────────────────────────────

    private function document(string $type, string $fileName = 'file.pdf'): ApplicationDocument
    {
        $pusat = PusatMengundi::query()->where('code', 'PM001')->firstOrFail();

        return $this->documentForPusat($pusat, $type, $fileName);
    }

    private function documentForPusat(PusatMengundi $pusat, string $type, string $fileName = 'file.pdf'): ApplicationDocument
    {
        $position = Position::query()->where('code', 'PAPM')->firstOrFail();
        $application = Application::factory()->create([
            'election_id' => $pusat->election_id,
            'pusat_mengundi_id' => $pusat->id,
            'requested_position_id' => $position->id,
        ]);
        $path = 'applications/'.$application->public_uuid.'/'.$fileName;
        Storage::disk('local')->put($path, 'test content');

        $document = ApplicationDocument::query()->create([
            'application_id' => $application->id,
            'document_type' => $type,
            'disk' => 'local',
            'path' => $path,
            'original_name' => $fileName,
            'mime_type' => 'application/pdf',
            'size' => 12,
        ]);

        $document->setRelation('application', $application);

        return $document;
    }

    private function ppmPusat(User $ppm): PusatMengundi
    {
        $ppmPosition = Position::query()->where('code', 'PPM')->firstOrFail();

        $assignment = StaffAssignment::query()
            ->where('user_id', $ppm->id)
            ->where('position_id', $ppmPosition->id)
            ->where('status', 'active')
            ->firstOrFail();

        return PusatMengundi::query()->findOrFail($assignment->pusat_mengundi_id);
    }
}