<?php

namespace Tests\Feature\Api;

use App\Actions\Git\GitProviderKey;
use App\Actions\Notifications\DeliverNotificationAction;
use App\Actions\ProjectTicketMetadata\InitializeProjectTicketMetadata;
use App\Enums\NotificationDeliveryStatus;
use App\Models\BoardColumn;
use App\Models\NotificationAction;
use App\Models\Project;
use App\Models\RepositoryConnection;
use App\Models\Ticket;
use App\Models\TicketLinkType;
use App\Models\TicketStatus;
use App\Models\User;
use App\Models\UserGitConnection;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Queue;
use Tests\TestCase;

class TicketApiTest extends TestCase
{
    use RefreshDatabase;

    public function test_ticket_read_and_write_api_flows(): void
    {
        [$user, $project] = $this->projectContext();

        $priority = $project->ticketPriorities()->firstOrFail();
        $status = $project->ticketStatuses()->firstOrFail();
        $type = $project->ticketTypes()->where('is_parent', false)->firstOrFail();

        $this->withApplicationKey($user)
            ->getJson(route('api.projects.ticket-options', [
                'project' => $project,
                'source' => 'backlog',
            ]))
            ->assertOk()
            ->assertJsonPath('data.defaultTicketStatusId', $status->id)
            ->assertJsonPath('data.ticketTypes.0.id', $type->id);

        $createResponse = $this->withApplicationKey($user)
            ->postJson(route('api.projects.tickets.store', $project), [
                'acceptance_criteria' => [
                    [
                        'checked' => false,
                        'indent' => 0,
                        'text' => 'Credentials are validated',
                    ],
                    [
                        'checked' => true,
                        'indent' => 1,
                        'text' => 'Nested validation is supported',
                    ],
                ],
                'description' => 'Build the API-created ticket',
                'story_points' => 3,
                'ticket_priority_id' => $priority->id,
                'ticket_status_id' => $status->id,
                'ticket_type_id' => $type->id,
                'title' => 'API ticket',
            ])
            ->assertCreated()
            ->assertJsonPath('data.ticket_key', 'CORE-1')
            ->assertJsonPath('data.acceptance_criteria.1.indent', 1)
            ->assertJsonPath('data.suggested_branch_name', 'core-1-api-ticket')
            ->assertJsonPath('meta.message', 'CORE-1 was created.');

        $ticket = Ticket::query()->findOrFail($createResponse->json('data.id'));

        $this->withApplicationKey($user)
            ->getJson(route('api.projects.tickets.index', $project))
            ->assertOk()
            ->assertJsonPath('data.0.ticket_key', 'CORE-1');

        $this->withApplicationKey($user)
            ->patchJson(route('api.projects.tickets.update', [$project, $ticket]), [
                'acceptance_criteria' => [
                    [
                        'checked' => true,
                        'indent' => 0,
                        'text' => 'API update preserves checked state',
                    ],
                ],
                'blocked_comment' => null,
                'description' => 'Updated through the API',
                'is_blocked' => false,
                'parent_ticket_id' => null,
                'story_points' => 5,
                'ticket_priority_id' => $priority->id,
                'ticket_type_id' => $type->id,
                'title' => 'Updated API ticket',
            ])
            ->assertOk()
            ->assertJsonPath('data.title', 'Updated API ticket')
            ->assertJsonPath('data.acceptance_criteria.0.checked', true)
            ->assertJsonPath('meta.message', 'CORE-1 was updated.');

        $this->withApplicationKey($user)
            ->getJson(route('api.projects.tickets.show', [$project, $ticket]))
            ->assertOk()
            ->assertJsonPath('data.ticket.ticket_key', 'CORE-1')
            ->assertJsonPath('data.ticket.story_points', 5)
            ->assertJsonPath('data.ticket.suggested_branch_name', 'core-1-updated-api-ticket')
            ->assertJsonPath('data.suggestedBranchName', 'core-1-updated-api-ticket');
    }

    public function test_ticket_update_hides_author_for_non_admins_when_author_visibility_is_disabled(): void
    {
        $writer = User::factory()->create();
        $author = User::factory()->create([
            'name' => 'Author User',
        ]);
        $project = Project::factory()->create([
            'key' => 'CORE',
            'show_author' => false,
        ]);

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

        $priority = $project->ticketPriorities()->firstOrFail();
        $status = $project->ticketStatuses()->firstOrFail();
        $type = $project->ticketTypes()->where('is_parent', false)->firstOrFail();

        $ticket = Ticket::factory()->create([
            'author_user_id' => $author->id,
            'project_id' => $project->id,
            'sequence_number' => 1,
            'ticket_key' => 'CORE-1',
            'ticket_priority_id' => $priority->id,
            'ticket_status_id' => $status->id,
            'ticket_type_id' => $type->id,
            'title' => 'API ticket',
        ]);

        $this->syncProjectPermissions($project, $writer, ['write', 'view']);

        $this->withApplicationKey($writer)
            ->patchJson(route('api.projects.tickets.update', [$project, $ticket]), [
                'acceptance_criteria' => [],
                'blocked_comment' => $ticket->blocked_comment,
                'description' => $ticket->description,
                'is_blocked' => $ticket->is_blocked,
                'parent_ticket_id' => $ticket->parent_ticket_id,
                'story_points' => $ticket->story_points,
                'ticket_priority_id' => $priority->id,
                'ticket_type_id' => $type->id,
                'title' => 'Updated API ticket',
            ])
            ->assertOk()
            ->assertJsonPath('data.author', null)
            ->assertJsonPath('data.author_user_id', null);
    }

    public function test_ticket_options_only_return_project_visible_users(): void
    {
        [$user, $project] = $this->projectContext();
        $projectViewer = User::factory()->create();
        $outsider = User::factory()->create();

        $this->syncProjectPermissions($project, $projectViewer, ['view']);

        $response = $this->withApplicationKey($user)
            ->getJson(route('api.projects.ticket-options', [
                'project' => $project,
                'source' => 'backlog',
            ]))
            ->assertOk();

        $userIds = collect($response->json('data.users'))
            ->pluck('id')
            ->all();

        $this->assertContains($user->id, $userIds);
        $this->assertContains($projectViewer->id, $userIds);
        $this->assertNotContains($outsider->id, $userIds);
    }

    public function test_tickets_can_return_status_targets_and_move_statuses(): void
    {
        [$user, $project] = $this->projectContext();

        $backlogStatus = $project->ticketStatuses()->firstOrFail();
        $boardColumn = BoardColumn::factory()->for($project)->create([
            'name' => 'Doing',
            'position' => 1,
        ]);
        $doingStatus = TicketStatus::factory()
            ->for($project)
            ->for($boardColumn)
            ->create([
                'name' => 'Doing',
                'position' => 1,
            ]);
        $backlogStatus->allowedTargetStatuses()->sync([$doingStatus->id]);

        $ticket = $this->ticket($project, $backlogStatus);

        $this->withApplicationKey($user)
            ->getJson(route('api.projects.tickets.status-targets', [$project, $ticket]))
            ->assertOk()
            ->assertJsonPath('data.current_status.id', $backlogStatus->id)
            ->assertJsonPath('data.target_statuses.0.id', $doingStatus->id);

        $this->withApplicationKey($user)
            ->patchJson(route('api.projects.tickets.status.update', [$project, $ticket]), [
                'ticket_status_id' => $doingStatus->id,
            ])
            ->assertOk()
            ->assertJsonPath('data.ticket_status_id', $doingStatus->id)
            ->assertJsonPath('meta.message', 'CORE-1 moved to Doing.');

        $this->assertDatabaseHas('ticket_worklog_entries', [
            'ticket_id' => $ticket->id,
            'actor_id' => $user->id,
            'entry_type' => 'status_changed',
        ]);
    }

    public function test_status_moves_still_queue_notification_deliveries_over_the_api(): void
    {
        Queue::fake();

        [$user, $project] = $this->projectContext();

        $backlogStatus = $project->ticketStatuses()->firstOrFail();
        $boardColumn = BoardColumn::factory()->for($project)->create([
            'name' => 'Doing',
            'position' => 1,
        ]);
        $doingStatus = TicketStatus::factory()
            ->for($project)
            ->for($boardColumn)
            ->create([
                'name' => 'Doing',
                'position' => 1,
            ]);
        $backlogStatus->allowedTargetStatuses()->sync([$doingStatus->id]);

        $ticket = $this->ticket($project, $backlogStatus);
        $notificationAction = NotificationAction::factory()
            ->webhook()
            ->for($project)
            ->create();

        $this->withApplicationKey($user)
            ->patchJson(route('api.projects.tickets.status.update', [$project, $ticket]), [
                'ticket_status_id' => $doingStatus->id,
            ])
            ->assertOk()
            ->assertJsonPath('data.ticket_status_id', $doingStatus->id)
            ->assertJsonPath('meta.message', 'CORE-1 moved to Doing.');

        Queue::assertPushed(DeliverNotificationAction::class, function (DeliverNotificationAction $job) use ($notificationAction): bool {
            return $job->notificationActionId === $notificationAction->id
                && $job->event->payload()->ticketKey === 'CORE-1'
                && $job->event->payload()->toStatusLabel === 'Doing'
                && $job->notificationDeliveryLogId !== null;
        });

        $this->assertDatabaseHas('notification_delivery_logs', [
            'notification_action_id' => $notificationAction->id,
            'delivery_status' => NotificationDeliveryStatus::Pending->value,
            'attempt_count' => 0,
        ]);
    }

    public function test_no_op_status_moves_keep_the_existing_api_response_and_do_not_queue_notifications(): void
    {
        Queue::fake();

        [$user, $project] = $this->projectContext();

        $backlogStatus = $project->ticketStatuses()->firstOrFail();
        $ticket = $this->ticket($project, $backlogStatus);

        NotificationAction::factory()
            ->webhook()
            ->for($project)
            ->create();

        $this->withApplicationKey($user)
            ->patchJson(route('api.projects.tickets.status.update', [$project, $ticket]), [
                'ticket_status_id' => $backlogStatus->id,
            ])
            ->assertOk()
            ->assertJsonPath('data.ticket_status_id', $backlogStatus->id)
            ->assertJsonPath('meta.message', 'CORE-1 already belongs to Backlog.');

        Queue::assertNothingPushed();
        $this->assertDatabaseCount('ticket_worklog_entries', 0);
    }

    public function test_counterpart_link_direction_is_reflected_on_both_tickets_in_the_api(): void
    {
        [$user, $project] = $this->projectContext();
        $status = $project->ticketStatuses()->firstOrFail();
        $blockingTicket = $this->ticket($project, $status);
        $blockedTicket = $this->ticket($project, $status, 2);
        $linkType = TicketLinkType::factory()->for($project)->create([
            'label' => 'Blocks',
            'counterpart_label' => 'Blocked by',
        ]);

        $this->withApplicationKey($user)
            ->postJson(route('api.projects.tickets.links.store', [$project, $blockedTicket]), [
                'linked_ticket_id' => $blockingTicket->id,
                'ticket_link_type_id' => $linkType->id,
                'link_direction' => 'counterpart',
            ])
            ->assertCreated()
            ->assertJsonPath('data.source_ticket_id', $blockingTicket->id)
            ->assertJsonPath('data.target_ticket_id', $blockedTicket->id)
            ->assertJsonPath('data.ticket_link_type.label', 'Blocked by')
            ->assertJsonPath('meta.message', 'Blocked by link was saved.');

        $this->withApplicationKey($user)
            ->getJson(route('api.projects.tickets.show', [$project, $blockingTicket]))
            ->assertOk()
            ->assertJsonPath('data.linkedTickets.0.ticket_link_type.label', 'Blocks');

        $this->withApplicationKey($user)
            ->getJson(route('api.projects.tickets.show', [$project, $blockedTicket]))
            ->assertOk()
            ->assertJsonPath('data.linkedTickets.0.ticket_link_type.label', 'Blocked by');

        $this->withApplicationKey($user)
            ->postJson(route('api.projects.tickets.links.store', [$project, $blockedTicket]), [
                'linked_ticket_id' => $blockingTicket->id,
                'ticket_link_type_id' => $linkType->id,
                'link_direction' => 'invalid',
            ])
            ->assertUnprocessable()
            ->assertJsonValidationErrors('link_direction');
    }

    public function test_ticket_links_and_branch_endpoints_are_available(): void
    {
        Http::preventStrayRequests();
        Http::fake([
            'https://git.example.test/api/v1/repos/core-team/kanbangit/branches*' => Http::sequence()
                ->push([
                    ['name' => 'main'],
                ], 200)
                ->push([
                    ['name' => 'main'],
                ], 200)
                ->push([
                    'name' => 'core-1-api-ticket',
                ], 201),
            'https://git.example.test/api/v1/repos/core-team/kanbangit' => Http::response([
                'id' => 501,
                'name' => 'kanbangit',
                'full_name' => 'core-team/kanbangit',
                'html_url' => 'https://git.example.test/core-team/kanbangit',
                'default_branch' => 'main',
                'owner' => [
                    'login' => 'core-team',
                ],
                'private' => false,
            ]),
        ]);

        [$user, $project] = $this->projectContext();
        $ticket = $this->ticket($project, $project->ticketStatuses()->firstOrFail());
        $linkedTicket = $this->ticket($project, $project->ticketStatuses()->firstOrFail(), 2);
        $linkType = TicketLinkType::factory()->for($project)->create([
            'label' => 'Relates to',
            'position' => 1,
        ]);

        $this->withApplicationKey($user)
            ->postJson(route('api.projects.tickets.links.store', [$project, $ticket]), [
                'linked_ticket_id' => $linkedTicket->id,
                'ticket_link_type_id' => $linkType->id,
            ])
            ->assertCreated()
            ->assertJsonPath('data.ticket_link_type.label', 'Relates to')
            ->assertJsonPath('meta.message', 'Relates to link was saved.');

        $repositoryConnection = RepositoryConnection::factory()->for($project)->create([
            'base_url' => 'https://git.example.test',
            'owner_name' => 'core-team',
            'provider' => GitProviderKey::Gitea,
            'provider_repository_id' => '501',
            'repository_full_name' => 'core-team/kanbangit',
            'repository_name' => 'kanbangit',
            'repository_url' => 'https://git.example.test/core-team/kanbangit',
        ]);
        UserGitConnection::factory()->for($user)->create([
            'api_token' => 'branch-token',
            'base_url' => 'https://git.example.test',
            'provider' => GitProviderKey::Gitea,
        ]);

        $this->withApplicationKey($user)
            ->getJson(route('api.projects.tickets.branches.validate', [
                'project' => $project,
                'ticket' => $ticket,
                'branch_name' => 'core-1-api-ticket',
                'repository_connection_id' => $repositoryConnection->id,
            ]))
            ->assertOk()
            ->assertJsonPath('data.is_valid', true);

        $this->withApplicationKey($user)
            ->postJson(route('api.projects.tickets.branches.store', [$project, $ticket]), [
                'branch_name' => 'core-1-api-ticket',
                'repository_connection_id' => $repositoryConnection->id,
            ])
            ->assertCreated()
            ->assertJsonPath('data.branch_name', 'core-1-api-ticket')
            ->assertJsonPath('meta.message', 'core-1-api-ticket was created in core-team/kanbangit.');
    }

    public function test_board_and_backlog_payloads_are_returned(): void
    {
        [$user, $project] = $this->projectContext();
        $backlogStatus = $project->ticketStatuses()->firstOrFail();
        $ticket = $this->ticket($project, $backlogStatus);

        $boardColumn = BoardColumn::factory()->for($project)->create([
            'name' => 'Todo',
            'position' => 1,
        ]);
        TicketStatus::factory()
            ->for($project)
            ->for($boardColumn)
            ->create([
                'name' => 'Todo',
                'position' => 1,
            ]);

        $this->withApplicationKey($user)
            ->getJson(route('api.projects.backlog', $project))
            ->assertOk()
            ->assertJsonPath('data.tickets.0.id', $ticket->id);

        $this->withApplicationKey($user)
            ->getJson(route('api.projects.board', $project))
            ->assertOk()
            ->assertJsonPath('data.boardColumns.0.name', 'Todo');
    }

    /**
     * @return array{0: User, 1: Project}
     */
    private function projectContext(): array
    {
        $user = User::factory()->create();
        $project = Project::factory()->create([
            'key' => 'CORE',
        ]);

        app(InitializeProjectTicketMetadata::class)->handle($project);
        $this->syncProjectPermissions($project, $user, ['edit', 'view']);

        return [$user, $project];
    }

    private function ticket(Project $project, TicketStatus $ticketStatus, int $sequenceNumber = 1): Ticket
    {
        $priority = $project->ticketPriorities()->firstOrFail();
        $type = $project->ticketTypes()->where('is_parent', false)->firstOrFail();

        return Ticket::factory()->create([
            'project_id' => $project->id,
            'sequence_number' => $sequenceNumber,
            'ticket_key' => "CORE-{$sequenceNumber}",
            'ticket_priority_id' => $priority->id,
            'ticket_status_id' => $ticketStatus->id,
            'ticket_type_id' => $type->id,
            'title' => 'API ticket',
        ]);
    }
}