<?php

declare(strict_types=1);

namespace App\Controllers;

use App\Models\Board;
use App\Repositories\BoardColumnRepository;
use App\Repositories\BoardRepository;
use App\Repositories\CardRepository;
use App\Repositories\SwimLaneRepository;
use App\Services\AuthService;
use Core\Controller;
use Core\Request;

class BoardsController extends Controller
{
    private function boards(): BoardRepository
    {
        return new BoardRepository(database());
    }

    private function columns(): BoardColumnRepository
    {
        return new BoardColumnRepository(database());
    }

    private function lanes(): SwimLaneRepository
    {
        return new SwimLaneRepository(database());
    }

    private function cards(): CardRepository
    {
        return new CardRepository(database());
    }

    public function index(): mixed
    {
        if ($guard = AuthService::requireLogin()) {
            return $guard;
        }

        $boards = $this->boards()->getAll();

        return $this->view('boards.index', [
            'pageTitle' => 'Boards',
            'boards'    => $boards,
        ]);
    }

    public function create(): mixed
    {
        if ($guard = AuthService::requireLogin()) {
            return $guard;
        }

        return $this->view('boards.create', ['pageTitle' => 'New Board']);
    }

    public function store(Request $request): mixed
    {
        if ($guard = AuthService::requireLogin()) {
            return $guard;
        }

        $name = trim((string) $request->input('name', ''));

        if ($name === '') {
            return $this->view('boards.create', [
                'pageTitle' => 'New Board',
                'error'     => 'Board name is required.',
                'old'       => $request->all(),
            ]);
        }

        $username = AuthService::getCurrentUsername();
        $now      = date('Y-m-d H:i:s');

        $board                       = new Board();
        $board->name                 = $name;
        $board->slug                 = $this->boards()->uniqueSlug($this->generateSlug($name));
        $board->importFromPrintstream = $request->input('import_from_printstream') === 'on';
        $board->printstreamJobName   = trim((string) $request->input('printstream_job_name', ''));
        $board->createdAt            = $now;
        $board->createdBy            = $username;
        $board->updatedAt            = $now;
        $board->updatedBy            = $username;

        $this->boards()->insert($board);

        return $this->redirect('/board/' . $board->slug);
    }

    public function show(string $slug): mixed
    {
        if ($guard = AuthService::requireLogin()) {
            return $guard;
        }

        $board = $this->boards()->findBySlug($slug);

        if ($board === null) {
            return \Core\Response::notFound('Board not found.');
        }

        $columns  = $this->columns()->findByBoardId($board->id);
        $lanes    = $this->lanes()->findByBoardId($board->id);
        $allCards = $this->cards()->findByBoardId($board->id);

        $cardsJson = json_encode(
            array_map(fn($c) => $c->toJsonArray(), $allCards),
            JSON_THROW_ON_ERROR
        );

        return $this->fragment('boards.show', [
            'board'     => $board,
            'columns'   => $columns,
            'lanes'     => $lanes,
            'cardsJson' => $cardsJson,
        ]);
    }

    public function edit(string $slug): mixed
    {
        if ($guard = AuthService::requireLogin()) {
            return $guard;
        }

        $board = $this->boards()->findBySlug($slug);

        if ($board === null) {
            return \Core\Response::notFound('Board not found.');
        }

        return $this->view('boards.edit', [
            'pageTitle' => 'Edit Board',
            'board'     => $board,
        ]);
    }

    public function update(Request $request, string $slug): mixed
    {
        if ($guard = AuthService::requireLogin()) {
            return $guard;
        }

        $board = $this->boards()->findBySlug($slug);

        if ($board === null) {
            return \Core\Response::notFound('Board not found.');
        }

        $newName = trim((string) $request->input('name', ''));

        if ($newName === '') {
            return $this->view('boards.edit', [
                'pageTitle' => 'Edit Board',
                'board'     => $board,
                'error'     => 'Board name is required.',
            ]);
        }

        $board->name                 = $newName;
        $board->slug                 = $this->boards()->uniqueSlug($this->generateSlug($newName), $board->id);
        $board->importFromPrintstream = $request->input('import_from_printstream') === 'on';
        $board->printstreamJobName   = trim((string) $request->input('printstream_job_name', ''));
        $board->updatedAt            = date('Y-m-d H:i:s');
        $board->updatedBy            = AuthService::getCurrentUsername();

        $this->boards()->update($board);

        return $this->redirect('/board/' . $board->slug);
    }

    public function updateCardAgeSettings(Request $request, int $id): mixed
    {
        if (!AuthService::isLoggedIn()) {
            return $this->json(['ok' => false, 'error' => 'Unauthorized'], 401);
        }

        $row = $this->boards()->find($id);
        if ($row === null) {
            return $this->json(['ok' => false, 'error' => 'Not found'], 404);
        }

        $showCardAge       = (string) $request->input('show_card_age', '0') === '1';
        $cardAgeWarningDays = max(0, (int) $request->input('card_age_warning_days', 0));

        $this->boards()->updateCardAgeSettings(
            $id,
            $showCardAge,
            $cardAgeWarningDays,
            date('Y-m-d H:i:s'),
            AuthService::getCurrentUsername()
        );

        return $this->json([
            'ok'                     => true,
            'show_card_age'          => $showCardAge,
            'card_age_warning_days'  => $cardAgeWarningDays,
        ]);
    }

    public function destroy(string $slug): mixed
    {
        if ($guard = AuthService::requireLogin()) {
            return $guard;
        }

        $board = $this->boards()->findBySlug($slug);

        if ($board === null) {
            return $this->redirect('/boards');
        }

        $this->cards()->deleteByBoardId($board->id);
        $this->columns()->deleteByBoardId($board->id);
        $this->lanes()->deleteByBoardId($board->id);
        $this->boards()->delete($board->id);

        return $this->redirect('/boards');
    }

    private function generateSlug(string $text): string
    {
        $slug = strtolower($text);
        $slug = preg_replace('/[^a-z0-9\s-]/', '', $slug) ?? $slug;
        $slug = preg_replace('/[\s-]+/', '-', trim($slug)) ?? $slug;

        return trim($slug, '-');
    }
}