<?php

namespace Tests\Feature\Projects;

use App\Actions\ProjectPermissions\ProjectPermissionService;
use App\Actions\ProjectTicketMetadata\InitializeProjectTicketMetadata;
use App\Models\Project;
use App\Models\Ticket;
use App\Models\TicketLink;
use App\Models\TicketLinkType;
use App\Models\TicketPriority;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class ProjectTicketLinkControllerTest extends TestCase
{
    use RefreshDatabase;

    /**
     * Ensure users with edit permission can link tickets and create a worklog entry.
     */
    public function test_users_with_edit_permission_can_link_tickets(): void
    {
        $user = User::factory()->create();
        $project = Project::factory()->create([
            'key' => 'CORE',
        ]);

        app(InitializeProjectTicketMetadata::class)->handle($project);

        $priority = TicketPriority::factory()->for($project)->create([
            'name' => 'Medium',
            'position' => 1,
        ]);
        $taskType = $project->ticketTypes()->where('system_key', 'task')->firstOrFail();
        $ticketLinkType = TicketLinkType::factory()->for($project)->create([
            'label' => 'Relates to',
            'position' => 1,
        ]);
        $ticket = Ticket::factory()->create([
            'project_id' => $project->id,
            'sequence_number' => 1,
            'ticket_key' => 'CORE-1',
            'ticket_priority_id' => $priority->id,
            'ticket_type_id' => $taskType->id,
        ]);
        $linkedTicket = Ticket::factory()->create([
            'project_id' => $project->id,
            'sequence_number' => 2,
            'ticket_key' => 'CORE-2',
            'ticket_priority_id' => $priority->id,
            'ticket_type_id' => $taskType->id,
        ]);

        app(ProjectPermissionService::class)->syncUserPermissions($project, $user, ['edit', 'view']);

        $this->actingAs($user)
            ->post(route('projects.tickets.links.store', [$project, $ticket]), [
                'linked_ticket_id' => $linkedTicket->id,
                'ticket_link_type_id' => $ticketLinkType->id,
            ])
            ->assertRedirect(route('projects.tickets.show', [$project, $ticket]))
            ->assertSessionHas('status', 'Relates to link was saved.');

        $this->assertDatabaseHas('ticket_links', [
            'source_ticket_id' => min($ticket->id, $linkedTicket->id),
            'target_ticket_id' => max($ticket->id, $linkedTicket->id),
            'ticket_link_type_id' => $ticketLinkType->id,
        ]);

        $this->assertDatabaseHas('ticket_worklog_entries', [
            'ticket_id' => $ticket->id,
            'actor_id' => $user->id,
            'entry_type' => 'link_updated',
            'summary' => 'Linked CORE-2 as Relates to.',
        ]);
    }

    /**
     * Ensure ticket links cannot target the current ticket or a ticket from another project.
     */
    public function test_ticket_links_must_target_other_tickets_within_the_same_project(): void
    {
        $user = User::factory()->create();
        $project = Project::factory()->create();
        $otherProject = Project::factory()->create();

        app(InitializeProjectTicketMetadata::class)->handle($project);
        app(InitializeProjectTicketMetadata::class)->handle($otherProject);

        $priority = TicketPriority::factory()->for($project)->create([
            'name' => 'Medium',
            'position' => 1,
        ]);
        $otherPriority = TicketPriority::factory()->for($otherProject)->create([
            'name' => 'Medium',
            'position' => 1,
        ]);
        $taskType = $project->ticketTypes()->where('system_key', 'task')->firstOrFail();
        $otherTaskType = $otherProject->ticketTypes()->where('system_key', 'task')->firstOrFail();
        $ticketLinkType = TicketLinkType::factory()->for($project)->create([
            'label' => 'Relates to',
            'position' => 1,
        ]);
        $ticket = Ticket::factory()->create([
            'project_id' => $project->id,
            'sequence_number' => 1,
            'ticket_key' => 'APP-1',
            'ticket_priority_id' => $priority->id,
            'ticket_type_id' => $taskType->id,
        ]);
        $foreignTicket = Ticket::factory()->create([
            'project_id' => $otherProject->id,
            'sequence_number' => 1,
            'ticket_key' => 'OPS-1',
            'ticket_priority_id' => $otherPriority->id,
            'ticket_type_id' => $otherTaskType->id,
        ]);

        app(ProjectPermissionService::class)->syncUserPermissions($project, $user, ['edit', 'view']);

        $this->actingAs($user)
            ->from(route('projects.tickets.show', [$project, $ticket]))
            ->post(route('projects.tickets.links.store', [$project, $ticket]), [
                'linked_ticket_id' => $ticket->id,
                'ticket_link_type_id' => $ticketLinkType->id,
            ])
            ->assertRedirect(route('projects.tickets.show', [$project, $ticket]))
            ->assertSessionHasErrors('linked_ticket_id');

        $this->actingAs($user)
            ->from(route('projects.tickets.show', [$project, $ticket]))
            ->post(route('projects.tickets.links.store', [$project, $ticket]), [
                'linked_ticket_id' => $foreignTicket->id,
                'ticket_link_type_id' => $ticketLinkType->id,
            ])
            ->assertRedirect(route('projects.tickets.show', [$project, $ticket]))
            ->assertSessionHasErrors('linked_ticket_id');
    }

    /**
     * Ensure users with edit permission can remove ticket links.
     */
    public function test_users_with_edit_permission_can_remove_ticket_links(): void
    {
        $user = User::factory()->create();
        $project = Project::factory()->create([
            'key' => 'CORE',
        ]);

        app(InitializeProjectTicketMetadata::class)->handle($project);

        $priority = TicketPriority::factory()->for($project)->create([
            'name' => 'Medium',
            'position' => 1,
        ]);
        $taskType = $project->ticketTypes()->where('system_key', 'task')->firstOrFail();
        $ticketLinkType = TicketLinkType::factory()->for($project)->create([
            'label' => 'Relates to',
            'position' => 1,
        ]);
        $ticket = Ticket::factory()->create([
            'project_id' => $project->id,
            'sequence_number' => 1,
            'ticket_key' => 'CORE-1',
            'ticket_priority_id' => $priority->id,
            'ticket_type_id' => $taskType->id,
        ]);
        $linkedTicket = Ticket::factory()->create([
            'project_id' => $project->id,
            'sequence_number' => 2,
            'ticket_key' => 'CORE-2',
            'ticket_priority_id' => $priority->id,
            'ticket_type_id' => $taskType->id,
        ]);
        $ticketLink = TicketLink::factory()->create([
            'source_ticket_id' => min($ticket->id, $linkedTicket->id),
            'target_ticket_id' => max($ticket->id, $linkedTicket->id),
            'ticket_link_type_id' => $ticketLinkType->id,
        ]);

        app(ProjectPermissionService::class)->syncUserPermissions($project, $user, ['edit', 'view']);

        $this->actingAs($user)
            ->delete(route('projects.tickets.links.destroy', [$project, $ticket, $ticketLink]))
            ->assertRedirect(route('projects.tickets.show', [$project, $ticket]))
            ->assertSessionHas('status', 'Relates to link was removed.');

        $this->assertDatabaseMissing('ticket_links', [
            'id' => $ticketLink->id,
        ]);

        $this->assertDatabaseHas('ticket_worklog_entries', [
            'ticket_id' => $ticket->id,
            'actor_id' => $user->id,
            'entry_type' => 'link_removed',
            'summary' => 'Removed Relates to link to CORE-2.',
        ]);
    }
}