export const base = '/api/v1/remote';
let csrf = '';
export async function api(path, data, method = data === undefined ? 'GET' : 'POST') {
    const controller = new AbortController();
    const timeout = setTimeout(() => controller.abort(), 15000);
    try {
        const response = await fetch(base + path, {method, credentials: 'same-origin', cache: 'no-store', signal: controller.signal,
            headers: data === undefined ? {} : {'Content-Type': 'application/json', 'X-Remote-CSRF': csrf},
            body: data === undefined ? undefined : JSON.stringify(data)});
        if (response.redirected || (response.ok && !response.headers.get('Content-Type')?.includes('application/json'))) {
            throw new Error('Hub sendte ikke det forventede svar. Prøver igen…');
        }
        const result = await response.json();
        if (!response.ok) {
            const error = new Error(typeof result.detail === 'string' ? result.detail : 'Kontrollér oplysningerne og prøv igen');
            error.status = response.status;
            error.retry = Number(response.headers.get('Retry-After') || 0);
            throw error;
        }
        return result;
    } catch (error) {
        if (error.status || error.message?.includes('forventede svar')) throw error;
        throw new Error('Forbindelsen til Hub er afbrudt. Prøver igen…');
    } finally { clearTimeout(timeout); }
}
export async function bootstrap() {
    const result = await api('/bootstrap');
    csrf = result.csrf;
    return result;
}
export function element(tag, text, className) {
    const node = document.createElement(tag);
    node.textContent = text;
    if (className) node.className = className;
    return node;
}

// getRandomValues also works on HTTP local-network origins.
export function requestId() {
    const bytes = crypto.getRandomValues(new Uint8Array(16));
    bytes[6] = (bytes[6] & 0x0f) | 0x40;
    bytes[8] = (bytes[8] & 0x3f) | 0x80;
    const hex = Array.from(bytes, b => b.toString(16).padStart(2, '0')).join('');
    return `${hex.slice(0,8)}-${hex.slice(8,12)}-${hex.slice(12,16)}-${hex.slice(16,20)}-${hex.slice(20)}`;
}