<?php declare(strict_types=1);

use Nechaev\Reports\Features\Reports\ReportsApi;

require_once __DIR__ . '/../init.php';

header('Content-Type: application/json; charset=utf-8');

$method = $_SERVER['REQUEST_METHOD'] ?? 'GET';
$path = parse_url($_SERVER['REQUEST_URI'] ?? '/', PHP_URL_PATH) ?: '/';

if ($method === 'OPTIONS') {
    http_response_code(204);
    exit;
}

try {
    $api = new ReportsApi();

    if ($method === 'GET' && $path === '/api/teams') {
        echo json_encode($api->getTeams(), JSON_UNESCAPED_UNICODE);
        exit;
    }

    if ($method === 'GET' && $path === '/api/config') {
        echo json_encode($api->getPublicConfig(), JSON_UNESCAPED_UNICODE);
        exit;
    }

    if ($method === 'GET' && preg_match('#^/api/teams/(\d+)/sprints$#', $path, $matches)) {
        echo json_encode($api->getSprintsByTeamId((int) $matches[1]), JSON_UNESCAPED_UNICODE);
        exit;
    }

    if ($method === 'GET' && preg_match('#^/api/teams/(\d+)/tasks$#', $path, $matches)) {
        $page = max(1, (int) ($_GET['page'] ?? 1));
        $perPage = max(1, min(100, (int) ($_GET['per_page'] ?? 50)));
        $result = $api->getTasksByTeamId((int) $matches[1], $page, $perPage);
        if ($result === null) {
            http_response_code(404);
            echo json_encode(['error' => 'Team not found'], JSON_UNESCAPED_UNICODE);
            exit;
        }
        echo json_encode($result, JSON_UNESCAPED_UNICODE);
        exit;
    }

    if ($method === 'GET' && preg_match('#^/api/sprints/(\d+)/tasks$#', $path, $matches)) {
        echo json_encode($api->getTasksBySprintId((int) $matches[1]), JSON_UNESCAPED_UNICODE);
        exit;
    }

    if ($method === 'GET' && preg_match('#^/api/sprints/(\d+)$#', $path, $matches)) {
        $sprint = $api->getSprintById((int) $matches[1]);
        if ($sprint === null) {
            http_response_code(404);
            echo json_encode(['error' => 'Sprint not found'], JSON_UNESCAPED_UNICODE);
            exit;
        }
        echo json_encode($sprint, JSON_UNESCAPED_UNICODE);
        exit;
    }

    http_response_code(404);
    echo json_encode(['error' => 'Not found'], JSON_UNESCAPED_UNICODE);
} catch (Throwable $e) {
    http_response_code(500);
    echo json_encode(['error' => $e->getMessage()], JSON_UNESCAPED_UNICODE);
}