// ==UserScript==
// @name         BTNULL 电影评分筛选器手动输入筛选分值,包含没有评分
// @namespace    http://tampermonkey.net/
// @version      0.82
// @description  BTNULL 评分筛选功能
// @author       silvo27
// @match        https://www.btnull.*/*/*
// @license      GPL
// @grant        window.onurlchange
// @downloadURL none
// ==/UserScript==

function hideLowScore(scoreFilter, isShowNA = 0) {
    let films = document.getElementsByClassName("content-list")[0].getElementsByTagName('li')
    for (let i of films) {
        let score = i.getElementsByTagName('h3')[0].getElementsByTagName('span')[0].innerText
        if (isShowNA) {
            if (score === 'N/A') {
                i.style.display = 'none'
            }
        }
        if (score <= scoreFilter) {
            i.style.display = 'none'
        }
    }
}

function setScore() {
    let filter_score = prompt(`点取消表示不筛选 \n请输入筛选数值(0~9.9)：`);
    if (filter_score >= 9.9) {
        filter_score = 9.9
    }
    if (isNaN(filter_score)) {
        filter_score = 0
    }
    if (!filter_score) {
        return
    }
    localStorage.setItem('filter_score', filter_score);
    console.log(filter_score)
    return
}

function setScoreLabe(storedScore) {
    let item = document.getElementsByTagName('nav')[0].getElementsByTagName('li')[0]
    item.innerHTML = `评分筛选:${storedScore}`;
    item.style.color = "blue";
    item.style.fontSize = '15px';
    item.style.padding = '0px 0px';
    item.onclick = function () {
        setScore()
        window.location.reload()
    }

}

function getScore() {
    let storedScore
    if (!localStorage.getItem('filter_score')) {
        localStorage.setItem('filter_score', 0);
        return 0
    } else {
        storedScore = localStorage.getItem('filter_score');
    }
    return storedScore
}


(function () {
    console.log("分数筛选:" + localStorage.filter_score)
    let storedScore = getScore()
    setScoreLabe(storedScore)
    hideLowScore(storedScore)

    if (window.onurlchange === null) {
        window.addEventListener('urlchange', (info) => {
            // console.log("changed:" + document.URL)
            hideLowScore(storedScore)
        });
    }
})();