self.onmessage = async (event) => {
    if (event.data.type === "api") {
        const { endpoint, serachValue, selectedDictionary } = event.data
        let response
        if (serachValue) {
            response = await fetch(`${endpoint}/getWords?name=${serachValue}&selecteddictionary=${selectedDictionary}`);
        } else {
            response = await fetch(`${endpoint}/getData?name=${serachValue}&selecteddictionary=${selectedDictionary}`);
        }
        const data = await response.json();
        self.postMessage({ data });
    }

    if (event.data.type === "filterwords") {
        const { data, serachValue, prefixValue, containsValue, suffixValue, exculdeValue, includeValue, lengthValue, sortingFilter, dictonary } = event.data
        let newWordsLength = 0;
        for (let i = 15; i > 0; i--) {
            let newdata = data.filter((item) => item.length === i);
            if (prefixValue) {
                newdata = newdata.filter((item2) =>
                    item2.startsWith(prefixValue.toLowerCase())
                );
            }
            if (containsValue) {
                newdata = newdata.filter((item) =>
                    item.includes(containsValue.toLowerCase())
                );
            }
            if (suffixValue) {
                newdata = newdata.filter((item) =>
                    item.endsWith(suffixValue.toLowerCase())
                );
            }
            if (exculdeValue) {
                let data = [];
                newdata.map((item) => {
                    let check = false;
                    for (let e = 0; e < exculdeValue.length; e++) {
                        const element = exculdeValue[e].toLowerCase();
                        if (item.includes(element)) {
                            check = true;
                            break;
                        } else {
                            check = false;
                        }
                    }
                    if (check === false) {
                        data.push(item);
                    }
                });
                newdata = data;
            }
            if (includeValue) {
                let data = [];
                newdata.map((item) => {
                    let check = false;
                    for (let e = 0; e < includeValue.length; e++) {
                        const element = includeValue[e].toLowerCase();
                        if (!item.includes(element)) {
                            check = true;
                            break;
                        } else {
                            check = false;
                        }
                    }
                    if (check === false) {
                        data.push(item);
                    }
                });
                newdata = data;
            }
            if (lengthValue) {
                newdata = newdata.filter((item) => item.length == lengthValue);
            }
            if (newdata.length === 0) {
                self.postMessage({
                    type: "filterwords",
                    prefixValue: prefixValue,
                    containsValue: containsValue,
                    suffixValue: suffixValue,
                    exculdeValue: exculdeValue,
                    includeValue: includeValue,
                    lengthValue: lengthValue,
                    newdata: newdata,
                    i: i,
                    newWordsLength: newWordsLength,
                });

            } else {
                newWordsLength += newdata.length;
                newdata = sortWords(sortingFilter, newdata, dictonary);
                let result = newdata.map((item) => {
                    let itemHtml = "";
                    if (serachValue) {
                        var text1 = serachValue.replace("?", "");
                        var text2 = item;
                        var text3 = item;
                        let chars = text1.split("");
                        let indexs = [];
                        chars.map((i) => {
                            let findIndexes = findIndex(text3, i);
                            if (findIndexes.length > 0) {
                                text3 = text3.split("");
                                text3[findIndexes] = "$";
                                text3 = text3.join("");
                                indexs = [...indexs, ...findIndexes];
                            }
                        });
                        text2.split("").map((itemValue, index) => {
                            let check = indexs.find((i) => i === index);
                            if (check !== undefined) {
                                itemHtml += `${itemValue}`;
                            } else {
                                itemHtml += `<span class='highlight'>${itemValue}</span>`;
                            }
                        });
                    } else {
                        itemHtml = item
                    }
                    if (item.length === 1) {
                        ok = false;
                        newWordsLength = newWordsLength - 1;
                    } else {
                        let ScrabbleLetterScore = ScrabbleScore();
                        sum = 0;
                        item = item.toLowerCase();
                        for (let i = 0; i < item.length; i++) {
                            sum += ScrabbleLetterScore[item[i]] || 0; // for unknown characters
                        }
                        return `
                    <a class="anchor__style" title="Lookup ${item} in Dictionary" target="_blank" href="/word-meaning?search=${item.toLowerCase()}">
                    ${itemHtml}
                    <span class="points" value="${sum}" style="position:relative; top:4px; font-size:12px">${sum}</span>
                    </a>
                    `;
                    }
                });
                result = result.slice(0, 25)
                self.postMessage({
                    type: "filterwords",
                    prefixValue: prefixValue,
                    containsValue: containsValue,
                    suffixValue: suffixValue,
                    exculdeValue: exculdeValue,
                    includeValue: includeValue,
                    lengthValue: lengthValue,
                    newdata: newdata,
                    i: i,
                    newWordsLength: newWordsLength,
                    result,
                });
            }
        }
    }
};


function sortWords(sortingFilter, data, dictonary) {
    if (sortingFilter == 0) {
        return data;
    } else if (sortingFilter == 1) {
        return data.sort();
    } else if (sortingFilter == 2) {
        return data.reverse();
    } else if (sortingFilter == 3) {
        var tempArr = [];
        var newArray = [];
        data.map((item) => {
            let newWordsLength = 0;
            if (item.length === 1) {
                ok = false;
                newWordsLength = newWordsLength - 1;
            } else {
                let ScrabbleLetterScore = ScrabbleScore(dictonary);
                let points = 0;
                item = item.toLowerCase();
                for (let i = 0; i < item.length; i++) {
                    points += ScrabbleLetterScore[item[i]] || 0; // for unknown characters
                }
                const value = {
                    words: item,
                    points: points,
                };
                newArray.push(value);
            }
        });

        newArray.sort(function (a, b) {
            return b.points - a.points;
        });

        newArray.map((ele) => {
            tempArr.push(ele.words);
        });
        return tempArr;
    }
}
// Scrabble Point Array
const ScrabbleScore = (dictonary) => {
    let twl06_sowpods = {
        a: 1,
        e: 1,
        i: 1,
        o: 1,
        u: 1,
        l: 1,
        n: 1,
        r: 1,
        s: 1,
        t: 1,
        d: 2,
        g: 2,
        b: 3,
        c: 3,
        m: 3,
        p: 3,
        f: 4,
        h: 4,
        v: 4,
        w: 4,
        y: 4,
        k: 5,
        j: 8,
        x: 8,
        q: 10,
        z: 10,
    };
    let wwfScore = {
        a: 1,
        b: 4,
        c: 4,
        d: 2,
        e: 1,
        f: 4,
        g: 3,
        h: 3,
        i: 1,
        j: 10,
        k: 5,
        l: 2,
        m: 4,
        n: 2,
        o: 1,
        p: 4,
        q: 10,
        r: 1,
        s: 1,
        t: 1,
        u: 2,
        v: 5,
        w: 4,
        x: 8,
        y: 3,
        z: 10,
    };

    if (dictonary === "wwf") {
        return wwfScore;
    } else {
        return twl06_sowpods;
    }
};

function findIndex(str, char) {
    const strLength = str.length;
    const indexes = [];
    let newStr = str;

    while (newStr && newStr.indexOf(char) > -1) {
        indexes.push(newStr.indexOf(char) + strLength - newStr.length);
        newStr = newStr.substring(newStr.indexOf(char) + 5);
        newStr = newStr.substring(newStr.indexOf(char) + 5);
    }

    return indexes;
}