<?php

namespace App\Http\Controllers\Api;

use App\Actions\Permissions\PermissionService;
use App\Actions\Projects\BuildProjectTicketDetailPayload;
use App\Actions\Projects\BuildProjectTicketOptionsPayload;
use App\Actions\Projects\BuildProjectTicketStatusTargetsPayload;
use App\Actions\Tickets\CreateProjectTicket;
use App\Actions\Tickets\MoveProjectTicket;
use App\Actions\Tickets\UpdateProjectTicket;
use App\Enums\Permission;
use App\Http\Requests\Api\MoveProjectTicketRequest;
use App\Http\Requests\StoreProjectTicketRequest;
use App\Http\Requests\UpdateProjectTicketRequest;
use App\Http\Resources\TicketResource;
use App\Models\Project;
use App\Models\Ticket;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
use Illuminate\Support\Arr;

class ProjectTicketController extends ApiController
{
    public function __construct(
        private readonly BuildProjectTicketDetailPayload $buildProjectTicketDetailPayload,
        private readonly BuildProjectTicketOptionsPayload $buildProjectTicketOptionsPayload,
        private readonly BuildProjectTicketStatusTargetsPayload $buildProjectTicketStatusTargetsPayload,
        private readonly CreateProjectTicket $createProjectTicket,
        private readonly MoveProjectTicket $moveProjectTicket,
        private readonly PermissionService $permissionService,
        private readonly UpdateProjectTicket $updateProjectTicket,
    ) {}

    public function index(Request $request, Project $project): AnonymousResourceCollection
    {
        $user = $this->authenticatedUser($request);

        abort_unless(
            $this->permissionService->allows($user, Permission::ProjectRead, $project),
            403,
        );

        return TicketResource::collection(
            $project->tickets()
                ->with([
                    'ticketPriority',
                    'ticketStatus.allowedTargetStatuses.boardColumn',
                    'ticketStatus.boardColumn',
                    'ticketType',
                ])
                ->get(),
        );
    }

    public function options(Request $request, Project $project): JsonResponse
    {
        $user = $this->authenticatedUser($request);

        abort_unless(
            $this->permissionService->allows($user, Permission::ProjectWrite, $project),
            403,
        );

        return response()->json([
            'data' => $this->buildProjectTicketOptionsPayload->handle(
                $project,
                Arr::get($request->query(), 'source') === 'board' ? 'board' : 'backlog',
            ),
        ]);
    }

    public function store(StoreProjectTicketRequest $request, Project $project): JsonResponse
    {
        $user = $this->authenticatedUser($request);

        abort_unless(
            $this->permissionService->allows($user, Permission::ProjectWrite, $project),
            403,
        );

        $ticket = $this->createProjectTicket->handle($project, $request->validated(), $user);

        return TicketResource::make($ticket->load(['ticketPriority', 'ticketStatus.boardColumn', 'ticketType']))
            ->additional([
                'meta' => [
                    'message' => "{$ticket->ticket_key} was created.",
                ],
            ])
            ->response()
            ->setStatusCode(201);
    }

    public function show(Request $request, Project $project, Ticket $ticket): JsonResponse
    {
        $user = $this->authenticatedUser($request);

        abort_unless(
            $this->permissionService->allows($user, Permission::ProjectRead, $project),
            403,
        );

        return response()->json([
            'data' => $this->buildProjectTicketDetailPayload->handle($project, $ticket, $user),
        ]);
    }

    public function update(
        UpdateProjectTicketRequest $request,
        Project $project,
        Ticket $ticket,
    ): JsonResponse {
        $user = $this->authenticatedUser($request);

        abort_unless(
            $this->permissionService->allows($user, Permission::ProjectWrite, $project),
            403,
        );

        $wasUpdated = $this->updateProjectTicket->handle($ticket, $user, $request->validated());
        $statusMessage = $wasUpdated
            ? "{$ticket->ticket_key} was updated."
            : 'No ticket changes were detected.';

        $canManageProject = $this->permissionService->allows($user, Permission::ProjectAdmin, $project);
        $displayTicket = $ticket->fresh([
            'assignee',
            'author',
            'fieldValues.ticketFieldDefinition',
            'fieldValues.userValue',
            'ticketPriority',
            'ticketStatus.boardColumn',
            'ticketType',
            'worklogEntries.actor',
        ]) ?? $ticket->load([
            'assignee',
            'author',
            'fieldValues.ticketFieldDefinition',
            'fieldValues.userValue',
            'ticketPriority',
            'ticketStatus.boardColumn',
            'ticketType',
            'worklogEntries.actor',
        ]);

        if (! $project->show_author && ! $canManageProject) {
            $displayTicket->setRelation('author', null);
            $displayTicket->author_user_id = null;
        }

        return TicketResource::make($displayTicket)
            ->additional([
                'meta' => [
                    'message' => $statusMessage,
                ],
            ])
            ->response();
    }

    public function statusTargets(Request $request, Project $project, Ticket $ticket): JsonResponse
    {
        $user = $this->authenticatedUser($request);

        abort_unless(
            $this->permissionService->allows($user, Permission::ProjectRead, $project),
            403,
        );

        return response()->json([
            'data' => $this->buildProjectTicketStatusTargetsPayload->handle($ticket),
        ]);
    }

    public function move(
        MoveProjectTicketRequest $request,
        Project $project,
        Ticket $ticket,
    ): JsonResponse {
        $user = $this->authenticatedUser($request);

        abort_unless(
            $this->permissionService->allows($user, Permission::ProjectWrite, $project),
            403,
        );

        $result = $this->moveProjectTicket->handle($project, $ticket, $user, $request->validated());
        $message = $result['moved']
            ? "{$ticket->ticket_key} moved to {$result['destination_label']}."
            : "{$ticket->ticket_key} already belongs to {$result['destination_label']}.";

        return TicketResource::make($ticket->fresh()->load(['ticketPriority', 'ticketStatus.boardColumn', 'ticketType']))
            ->additional([
                'meta' => [
                    'message' => $message,
                ],
            ])
            ->response();
    }
}