// Custom language code mapping for govarnam.
window.autoCompLangCodes = {
    "kannada": "kn"
}

function hasKannadaChar(str) {
  return /[\u0C80-\u0CFF]/.test(str);
}

(function () {
    const reMatchNonKannadaBlobs = new RegExp(/[^\u0C80-\u0CFF]+/g);
    // In the results (definitions), if there are Kannada words, hyperlink
    // them to search.
    let defs = document.querySelectorAll(".defs li");
    if (!defs || defs.length === 0) {
        return;
    }

    for (let i = 0; i < defs.length; i++) {
        // Go through each definition. Ignore the ASCII ones.
        if (!hasKannadaChar(defs[i].innerText)) {
            continue;
        }

        // Split the word and iterate through it, turning non-ASCII words into
        // hyperlinks;
        const parts = defs[i].innerText.split(" ");
        const s = document.createElement("span");

        parts.forEach((v) => {
            if (!hasKannadaChar(v)) {
                // ASCII word. Append the text as-is.
                s.appendChild(document.createTextNode(v));
            } else {
                // Non-ASCII word. Turn into a link.
                const a = document.createElement("a");

                // Some Kannada words have non-Kannada characters around them,
                // the hyperlink should be formed only for Kannada words, while retaining all the characters order
                const kannadaWord = v.replace(reMatchNonKannadaBlobs, "");
                const nonKannadaWords = v.split(kannadaWord);

                nonKannadaWords[0] && s.appendChild(document.createTextNode(nonKannadaWords[0]));

                a.setAttribute("href", kannadaWord);
                a.appendChild(document.createTextNode(kannadaWord));
                s.appendChild(a);

                nonKannadaWords[1] && s.appendChild(document.createTextNode(nonKannadaWords[1]));
            }

            // Append a space.
            s.appendChild(document.createTextNode(" "));
        });

        defs[i].innerHTML = "";
        defs[i].appendChild(s);
    }

})();