<?php

declare(strict_types=1);

namespace App\Controllers;

use App\Models\SwimLane;
use App\Repositories\CardRepository;
use App\Repositories\SwimLaneRepository;
use App\Services\AuthService;
use Core\Controller;
use Core\Request;

class SwimLanesController extends Controller
{
    private function lanes(): SwimLaneRepository
    {
        return new SwimLaneRepository(database());
    }

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

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

        $boardId = (int) $request->input('board_id', 0);
        $name    = trim((string) $request->input('name', ''));

        if ($boardId === 0 || $name === '') {
            return $this->json(['ok' => false, 'error' => 'board_id and name are required']);
        }

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

        $lane           = new SwimLane();
        $lane->boardId  = $boardId;
        $lane->name     = $name;
        $lane->position = $this->lanes()->maxPosition($boardId) + 1;
        $lane->createdAt = $now;
        $lane->createdBy = $username;
        $lane->updatedAt = $now;
        $lane->updatedBy = $username;

        $this->lanes()->insert($lane);

        return $this->json(['ok' => true, 'id' => $lane->id, 'name' => $lane->name, 'position' => $lane->position]);
    }

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

        $name = trim((string) $request->input('name', ''));
        if ($name === '') {
            return $this->json(['ok' => false, 'error' => 'name is required']);
        }

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

        $lane = SwimLane::fromRow($row);
        $lane->name      = $name;
        $lane->updatedAt = date('Y-m-d H:i:s');
        $lane->updatedBy = AuthService::getCurrentUsername();

        $this->lanes()->update($lane);

        return $this->json(['ok' => true]);
    }

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

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

        $show = (string) $request->input('show_export_button', '0') === '1';

        $this->lanes()->updateShowExportButton($id, $show, date('Y-m-d H:i:s'), AuthService::getCurrentUsername());

        return $this->json(['ok' => true, 'show_export_button' => $show]);
    }

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

        $row = $this->lanes()->find($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->lanes()->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 export(int $id): mixed
    {
        if (!AuthService::isLoggedIn()) {
            return $this->redirect('/auth/login');
        }

        $row = $this->lanes()->find($id);
        if ($row === null) {
            return new \Core\Response('Not found', 404);
        }

        $lane  = \App\Models\SwimLane::fromRow($row);
        $cards = $this->cards()->findBySwimLaneId($id);

        $out = fopen('php://memory', 'wb');
        fputcsv($out, ['Job #', 'Job Name', 'Customer', 'Delivery Date', 'Quantity', 'Notes'], ',', '"', '\\');
        foreach ($cards as $card) {
            fputcsv($out, [
                $card->jobNumber,
                $card->jobName,
                $card->customerName,
                $card->deliveryDate ?? '',
                $card->quantity ?? '',
                $card->notes,
            ], ',', '"', '\\');
        }
        rewind($out);
        $csv = (string) stream_get_contents($out);
        fclose($out);

        $slug     = trim((string) preg_replace('/[^a-z0-9]+/i', '-', $lane->name), '-');
        $filename = ($slug ?: 'lane') . '-' . date('Y-m-d') . '.csv';

        return new \Core\Response($csv, 200, [
            'Content-Type'        => 'text/csv; charset=utf-8',
            'Content-Disposition' => 'attachment; filename="' . $filename . '"',
        ]);
    }

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

        $this->cards()->deleteBySwimLaneId($id);
        $this->lanes()->delete($id);

        return $this->json(['ok' => true]);
    }

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

        $raw   = file_get_contents('php://input');
        $items = json_decode((string) $raw, true);

        if (!is_array($items)) {
            return $this->json(['ok' => false, 'error' => 'Invalid JSON payload']);
        }

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

        foreach ($items as $item) {
            $laneId   = (int) ($item['id'] ?? 0);
            $position = (int) ($item['position'] ?? 0);
            if ($laneId > 0) {
                $this->lanes()->updatePosition($laneId, $position, $now, $username);
            }
        }

        return $this->json(['ok' => true]);
    }
}