(function() {
var __cfg = document.getElementById('partial-item-text-editor-cfg');
var ITEM_ID = __cfg ? __cfg.dataset.itemId : '';

// The Write/Preview pair, the preview pane and the markdown rendering behind
// them are the described field's now (crate::quasi::rich_field, bound by
// markdown-editor.js). What used to be here was a regex over h1-h3, bold,
// italic and inline code, which is not what publishing does; the pane is
// filled from /api/preview/markdown instead. What stays is this screen's own:
// the word count, the explicit save, and the autosave clock.

function updateWordCount() {
    const body = document.getElementById('text-body').value;
    const words = body.trim().split(/\s+/).filter(w => w).length;
    const readingTime = Math.max(1, Math.ceil(words / 200));
    document.getElementById('word-count').textContent = words + ' words';
    document.querySelector('.reading-time').textContent = readingTime + ' min read';
}

function saveTextContent() {
    const body = document.getElementById('text-body').value;
    const btn = document.getElementById('save-text-btn');
    const status = document.getElementById('text-save-status');
    const itemId = ITEM_ID;

    btn.disabled = true;
    status.innerHTML = '';

    fetch('/api/items/' + itemId + '/text', {
        method: 'PUT',
        headers: { 'Content-Type': 'application/json', ...csrfHeaders() },
        body: JSON.stringify({ body: body })
    })
    .then(res => res.json())
    .then(data => {
        status.innerHTML = '<span class="save-status success">Saved</span>';
        if (data.word_count !== undefined) {
            document.getElementById('word-count').textContent = data.word_count + ' words';
        }
    })
    .catch(err => {
        status.innerHTML = '<span class="save-status error">Error saving</span>';
    })
    .finally(() => {
        btn.disabled = false;
    });
}

document.getElementById('text-body').addEventListener('input', updateWordCount);

// Auto-save: debounce text body changes (30s after last keystroke)
var autoSaveStatus = document.getElementById('text-save-status');

document.getElementById('text-body').addEventListener('input', function() {
    // Thirty seconds is a save cadence rather than a wait for the typing to
    // stop, and `makeover-timing` names no such intent, so the number stays
    // here. The closure that spent it does not.
    window.timing.debounce('text-autosave', function() {
        autoSaveStatus.innerHTML = '<span class="save-status saving">Saving...</span>';
        var body = document.getElementById('text-body').value;
        fetch('/api/items/' + ITEM_ID + '/text', {
            method: 'PUT',
            headers: { 'Content-Type': 'application/json', ...csrfHeaders() },
            body: JSON.stringify({ body: body })
        })
        .then(function(res) { return res.json(); })
        .then(function(data) {
            autoSaveStatus.innerHTML = '<span class="save-status success">Auto-saved</span>';
            if (data.word_count !== undefined) {
                document.getElementById('word-count').textContent = data.word_count + ' words';
            }
            window.timing.clearStatusLater(autoSaveStatus, 'Auto-saved');
        })
        .catch(function() {
            autoSaveStatus.innerHTML = '<span class="save-status error">Auto-save failed</span>';
        });
    }, 30000);
});

window.saveTextContent = saveTextContent;
})();