<?php

declare(strict_types=1);

namespace Modules\Helpdesk\Tests\Feature;

use App\Models\Company;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Facades\Storage;
use Livewire\Livewire;
use Modules\Helpdesk\Livewire\TicketShow;
use Modules\Helpdesk\Models\Attachment;
use Modules\Helpdesk\Models\Comment;
use Modules\Helpdesk\Services\TicketService;
use Modules\Helpdesk\Tests\Concerns\BuildsHelpdeskFixtures;
use Tests\TestCase;

final class TicketConversationTest extends TestCase
{
    use BuildsHelpdeskFixtures;
    use RefreshDatabase;

    public function test_owner_can_add_public_response_to_ticket(): void
    {
        $fixtures = $this->seedLookupData();
        $owner = $this->user();
        $ticket = $this->ticket(['owner' => $owner, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);

        Livewire::actingAs($owner)
            ->test(TicketShow::class, ['ticket' => $ticket])
            ->set('commentBody', '<p>Please can you check this update?</p>')
            ->call('addComment')
            ->assertHasNoErrors()
            ->assertDispatched('helpdesk-comment-added');

        $this->assertDatabaseHas('helpdesk_comments', [
            'ticket_id' => $ticket->id,
            'parent_id' => null,
            'user_id' => $owner->id,
            'is_internal' => false,
        ]);
    }

    public function test_comment_can_have_a_nested_reply(): void
    {
        $fixtures = $this->seedLookupData();
        $owner = $this->user();
        $ticket = $this->ticket(['owner' => $owner, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);
        $comment = Comment::query()->create([
            'ticket_id' => $ticket->id,
            'user_id' => $owner->id,
            'body' => '<p>Parent response</p>',
            'is_internal' => false,
        ]);

        Livewire::actingAs($owner)
            ->test(TicketShow::class, ['ticket' => $ticket])
            ->call('startReply', $comment->id)
            ->set('replyBody', '<p>Nested reply body</p>')
            ->call('addReply')
            ->assertHasNoErrors()
            ->assertDispatched('helpdesk-reply-added');

        $this->assertDatabaseHas('helpdesk_comments', [
            'ticket_id' => $ticket->id,
            'parent_id' => $comment->id,
            'body' => '<p>Nested reply body</p>',
        ]);
    }

    public function test_comment_post_endpoint_creates_lotus_identity_and_search_text(): void
    {
        $fixtures = $this->seedLookupData();
        $owner = $this->user();
        $ticket = $this->ticket(['owner' => $owner, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);

        $this->actingAs($owner)
            ->post(route('helpdesk.tickets.comments.store', $ticket), [
                'subject' => 'Searchable response subject',
                'commentBody' => '<p><strong>Searchable response</strong></p>',
            ])
            ->assertRedirect(route('helpdesk.tickets.show', $ticket));

        $comment = Comment::query()->where('ticket_id', $ticket->id)->firstOrFail();

        self::assertNotEmpty($comment->guid);
        self::assertNotEmpty($comment->unid);
        self::assertSame($comment->unid, $comment->root_unid);
        self::assertSame('Searchable response subject', $comment->subject);
        self::assertSame('Searchable response', $comment->body_text);
        self::assertSame(1, $comment->sync_sequence);
    }

    public function test_nested_reply_post_endpoint_preserves_lotus_parent_identity(): void
    {
        $fixtures = $this->seedLookupData();
        $owner = $this->user();
        $ticket = $this->ticket(['owner' => $owner, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);
        $parent = app(TicketService::class)->comment($ticket, $owner, '<p>Parent response</p>');

        $this->actingAs($owner)
            ->post(route('helpdesk.tickets.comments.store', $ticket), [
                'parent_id' => $parent->id,
                'subject' => 'RE: Parent response',
                'commentBody' => '<p>Child response</p>',
            ])
            ->assertRedirect(route('helpdesk.tickets.show', $ticket));

        $reply = Comment::query()->where('parent_id', $parent->id)->firstOrFail();

        self::assertSame($parent->unid, $reply->parent_unid);
        self::assertSame($parent->root_unid, $reply->root_unid);
        self::assertSame('RE: Parent response', $reply->subject);
    }

    public function test_existing_ticket_accepts_multiple_supporting_file_attachments(): void
    {
        Storage::fake((string) config('helpdesk.disk', 'public'));

        $fixtures = $this->seedLookupData();
        $owner = $this->user();
        $ticket = $this->ticket(['owner' => $owner, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);

        Livewire::actingAs($owner)
            ->test(TicketShow::class, ['ticket' => $ticket])
            ->set('supportingFiles', [
                UploadedFile::fake()->create('existing-ticket-log.txt', 8, 'text/plain'),
                UploadedFile::fake()->create('existing-ticket-proof.pdf', 12, 'application/pdf'),
            ])
            ->call('saveSupportingFiles')
            ->assertHasNoErrors()
            ->assertDispatched('helpdesk-supporting-files-added');

        self::assertSame(2, Attachment::query()->where('ticket_id', $ticket->id)->whereNull('comment_id')->count());

        $this->assertDatabaseHas('helpdesk_attachments', [
            'ticket_id' => $ticket->id,
            'comment_id' => null,
            'original_name' => 'existing-ticket-log.txt',
        ]);

        $this->assertDatabaseHas('helpdesk_attachments', [
            'ticket_id' => $ticket->id,
            'comment_id' => null,
            'original_name' => 'existing-ticket-proof.pdf',
        ]);
    }

    public function test_post_endpoint_accepts_multiple_comment_attachments(): void
    {
        Storage::fake((string) config('helpdesk.disk', 'public'));

        $fixtures = $this->seedLookupData();
        $owner = $this->user();
        $ticket = $this->ticket(['owner' => $owner, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);

        $this->actingAs($owner)
            ->post(route('helpdesk.tickets.comments.store', $ticket), [
                'subject' => 'Attachments attached',
                'commentBody' => '<p>Files attached.</p>',
                'attachments' => [
                    UploadedFile::fake()->create('first-log.txt', 8, 'text/plain'),
                    UploadedFile::fake()->create('second-log.txt', 8, 'text/plain'),
                ],
            ])
            ->assertRedirect(route('helpdesk.tickets.show', $ticket));

        $comment = Comment::query()->where('ticket_id', $ticket->id)->firstOrFail();

        self::assertSame(2, Attachment::query()->where('comment_id', $comment->id)->count());
    }

    public function test_mpba_platform_admin_can_delete_comment(): void
    {
        $fixtures = $this->seedLookupData();
        $company = Company::query()->create([
            'name' => 'MPBA Limited',
            'slug' => 'mpba-limited',
            'status' => 'active',
            'timezone' => 'Europe/London',
            'is_system_company' => true,
        ]);
        $admin = $this->user(['company_id' => $company->id, 'is_platform_admin' => true]);
        $owner = $this->user(['company_id' => $company->id]);
        $ticket = $this->ticket(['owner' => $owner, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);
        $comment = app(TicketService::class)->comment($ticket, $owner, '<p>Delete me</p>');

        $this->actingAs($admin)
            ->delete(route('helpdesk.tickets.comments.destroy', [$ticket, $comment]))
            ->assertRedirect(route('helpdesk.tickets.show', $ticket));

        $comment->refresh();
        self::assertNotNull($comment->tombstoned_at);
    }

    public function test_agent_can_update_status_to_closed_and_priority(): void
    {
        Mail::fake();
        $fixtures = $this->seedLookupData();
        $owner = $this->user();
        $agent = $this->agent();
        $ticket = $this->ticket(['owner' => $owner, 'agent' => $agent, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);

        Livewire::actingAs($agent)
            ->test(TicketShow::class, ['ticket' => $ticket])
            ->set('status_id', $fixtures['closed']->id)
            ->set('closureComment', 'Closing after agent review.')
            ->call('updateStatus')
            ->assertHasNoErrors()
            ->assertDispatched('helpdesk-status-updated')
            ->set('priority_id', $fixtures['high']->id)
            ->call('updatePriority')
            ->assertHasNoErrors()
            ->assertDispatched('helpdesk-priority-updated');

        $ticket->refresh();
        self::assertNotNull($ticket->completed_at);
        self::assertSame($fixtures['closed']->id, $ticket->status_id);
        self::assertSame($fixtures['high']->id, $ticket->priority_id);
    }

    public function test_closing_ticket_requires_a_closure_comment(): void
    {
        $fixtures = $this->seedLookupData();
        $owner = $this->user();
        $agent = $this->agent();
        $ticket = $this->ticket([
            'owner' => $owner,
            'agent' => $agent,
            'status_id' => $fixtures['open']->id,
            'priority_id' => $fixtures['normal']->id,
        ]);

        $this->actingAs($agent)
            ->from(route('helpdesk.tickets.show', $ticket))
            ->post(route('helpdesk.tickets.status.update', $ticket), [
                'status_id' => $fixtures['closed']->id,
            ])
            ->assertRedirect(route('helpdesk.tickets.show', $ticket))
            ->assertSessionHasErrors('closure_comment');

        $ticket->refresh();

        self::assertSame($fixtures['open']->id, $ticket->status_id);
        self::assertNull($ticket->completed_at);
    }

    public function test_closing_ticket_creates_a_closure_comment(): void
    {
        $fixtures = $this->seedLookupData();
        $owner = $this->user();
        $agent = $this->agent();
        $ticket = $this->ticket([
            'owner' => $owner,
            'agent' => $agent,
            'status_id' => $fixtures['open']->id,
            'priority_id' => $fixtures['normal']->id,
        ]);

        $this->actingAs($agent)
            ->post(route('helpdesk.tickets.status.update', $ticket), [
                'status_id' => $fixtures['closed']->id,
                'closure_comment' => 'Issue resolved and verified before closure.',
                'closure_internal' => '0',
            ])
            ->assertRedirect(route('helpdesk.tickets.show', $ticket));

        $ticket->refresh();

        self::assertSame($fixtures['closed']->id, $ticket->status_id);
        self::assertNotNull($ticket->completed_at);

        $this->assertDatabaseHas('helpdesk_comments', [
            'ticket_id' => $ticket->id,
            'user_id' => $agent->id,
            'subject' => 'Closure comment',
            'body' => 'Issue resolved and verified before closure.',
            'is_internal' => false,
        ]);
    }

    public function test_unassigned_agent_cannot_update_another_users_ticket(): void
    {
        $fixtures = $this->seedLookupData();
        $owner = $this->user();
        $agent = $this->agent();
        $ticket = $this->ticket(['owner' => $owner, 'agent_id' => null, 'status_id' => $fixtures['open']->id, 'priority_id' => $fixtures['normal']->id]);

        Livewire::actingAs($agent)
            ->test(TicketShow::class, ['ticket' => $ticket])
            ->assertForbidden();
    }
}