/** @file manager.js @version 0.2.0 */
function managerIcon(name) {
    const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
    svg.classList.add('icon');
    svg.setAttribute('aria-hidden', 'true');
    const use = document.createElementNS('http://www.w3.org/2000/svg', 'use');
    use.setAttribute('href', '#icon-' + name);
    svg.append(use);
    return svg;
}

async function managerRequest(url, options = {}) {
    const response = await fetch(url, options);
    let data;
    try { data = await response.json(); }
    catch { throw new Error('Сервер вернул неожиданный ответ. Попробуйте обновить страницу.'); }
    if (!response.ok) {
        throw new Error(typeof data.detail === 'string' ? data.detail : 'Проверьте введённые значения.');
    }
    return data;
}

function managerMessage(text, type = 'info') {
    const element = document.getElementById('operation-message');
    if (element.dataset.message === text && element.dataset.type === type && !element.classList.contains('is-hidden')) return;
    element.dataset.message = text;
    element.dataset.type = type;
    element.className = 'notice notice-' + type;
    const indicator = type === 'info' ? document.createElement('span') : managerIcon(type === 'success' ? 'check' : 'terminal');
    if (type === 'info') { indicator.className = 'spinner'; indicator.setAttribute('aria-hidden', 'true'); }
    const copy = document.createElement('span');
    copy.className = 'notice-copy';
    copy.textContent = text;
    const close = document.createElement('button');
    close.type = 'button';
    close.className = 'icon-button';
    close.setAttribute('aria-label', 'Скрыть сообщение');
    close.append(managerIcon('close'));
    close.addEventListener('click', () => element.classList.add('is-hidden'));
    element.replaceChildren(indicator, copy, close);
}

function managerFormError(form, text = '') {
    const element = form.querySelector('.form-feedback');
    if (!element) return;
    element.textContent = text;
    element.classList.toggle('is-hidden', !text);
}

async function managerJob(job) {
    while (true) {
        const warnings = (job.warnings || []).join(' ');
        if (job.status === 'error') throw new Error(job.error);
        if (job.status === 'done') {
            managerMessage(job.folder + ': готово.' + (warnings ? ' ' + warnings : ''), warnings ? 'warning' : 'success');
            return job;
        }
        managerMessage(job.folder + ': ' + job.stage + (warnings ? '. ' + warnings : ''), warnings ? 'warning' : 'info');
        await new Promise(resolve => setTimeout(resolve, 1000));
        job = await managerRequest('/api/jobs/' + encodeURIComponent(job.id));
    }
}

function managerJson(method, data) {
    return {method, headers: {'Content-Type': 'application/json'}, body: JSON.stringify(data)};
}

document.addEventListener('DOMContentLoaded', () => {
    document.querySelectorAll('[data-dialog-open]').forEach(button => {
        button.addEventListener('click', () => {
            const dialog = document.getElementById(button.dataset.dialogOpen);
            managerFormError(dialog);
            dialog.showModal();
        });
    });
    document.querySelectorAll('[data-dialog-close]').forEach(button => {
        button.addEventListener('click', () => button.closest('dialog').close());
    });
    document.querySelectorAll('dialog').forEach(dialog => {
        dialog.addEventListener('click', event => { if (event.target === dialog) {
            const rect = dialog.getBoundingClientRect();
            if (event.clientX < rect.left || event.clientX > rect.right || event.clientY < rect.top || event.clientY > rect.bottom) dialog.close();
        } });
        dialog.addEventListener('close', () => dialog.querySelectorAll('input[type=password]').forEach(input => { input.value = ''; }));
    });
});