// Handles cluster naming event
import { nameCluster } from './cluster_naming.js';
import { updateScatter } from './plotting.js';

export async function handleNamingEvent() {
    const progressBar = document.getElementById("progress-bar");
    const progressBarInner = document.getElementById("progress-bar-inner");
    progressBar.style.display = "block";
    progressBarInner.style.width = "0%";

    const text = document.getElementById("input").value;
    // Reconstruct clusters from textarea (split by triple newlines)
    const clustered = text.split(/\n{3,}/).map(group =>
        group.split('\n').filter(line => line && !line.startsWith('##'))
    );
    const k = clustered.length;

    const clusterNames = [];
    for (let c = 0; c < k; ++c) {
        progressBarInner.style.width = `${Math.round(((c + 1) / k) * 100)}%`;
        const name = await nameCluster(clustered[c]);
        clusterNames.push(name || `Cluster ${c + 1}`);
        // Update UMAP scatter plot legend with new cluster names
        if (window.traces && window.traces[c]) {
            window.traces[c].name = clusterNames[c];
        }
    }
    // Update textarea with cluster names as markdown headers
    document.getElementById("input").value = clustered.map((g, i) =>
        `## ${clusterNames[i]}\n${g.join("\n")}`
    ).join("\n\n\n");
    // Update UMAP scatter plot if traces are available
    if (window.traces) {
        updateScatter(window.traces, k);
    }
    progressBarInner.style.width = "100%";
}