// ==UserScript==
// @name         pakku advanced filter
// @namespace    http://s.xmcp.ml/pakkujs/
// @version      0.1
// @description  弹幕屏蔽Pro+ （依赖于 pakku≥8.7）
// @author       xmcp
// @match        *://*.bilibili.com/*
// @grant        none
// @downloadURL none
// ==/UserScript==

const NEED_UID=true; // 是否需要使用 cracked_uid 属性（慢）
const NEED_SENDER_INFO=true; // 是否需要使用 sender_info 属性（更慢）

function should_display(d) { // 屏蔽规则写在这个函数里
    //console.log(d);

    // 示例：仅显示 LV3 以上用户的弹幕
    return d.sender_info && d.sender_info.level_info.current_level>=3;

    /*

d = {
	"text": "₍₂₎][[",
	"desc": [],
	"xml_src": "<d p=\"0.00000,1,25,16777215,1524407489,0,91d6b7d0,4480700090\">₍₂₎]][[</d>",
	"peers": [
        {
            "attr": ["0.00000","1","25","16777215","1524407489","0","91d6b7d0","4480700090"],
            "time": 0,
            "orig_str": "]][[",
            "mode": "1",
            "reason": "ORIG"
        },
        {
            "attr": ["0.00000","1","25","16777215","1524407554","0","91d6b7d0","4480703586"],
            "time": 0,
            "orig_str": "]]][[[",
            "mode": "1",
            "reason": "≤2"
        }
    ],
	"cracked_uid": 10119345,
	"sender_info": {
		"mid": "10119345",
		"uname": "xmcp",
		"face": "/bfs/face/902415752868028e925cf3ee508a7d6c6d4d57e3.jpg",
		"avatar": "http://i2.hdslb.com/bfs/face/902415752868028e925cf3ee508a7d6c6d4d57e3.jpg",
		"rank": "10000",
		"DisplayRank": "10000",
		"sex": "男",
		"sign": "pcmx",
		"level_info": {
			"next_exp": 28800,
			"current_level": 5,
			"current_min": 10800,
			"current_exp": 14392
		},
		"pendant": {
			"pid": 0,
			"name": "",
			"image": "",
			"expire": 0
		},
		"nameplate": {
			"nid": 60,
			"name": "
饭圈萌新",
			"image": "http://i1.hdslb.com/bfs/face/51ca16136e570938450bca360f28761ceb609f33.png",
			"image_small": "http://i2.hdslb.com/bfs/face/9abfa4769357f85937782c2dbc40fafda4f57217.png",
			"level": "普通勋章",
			"condition": "当前持有粉丝勋章最高等级>=5级"
		},
		"official_verify": {
			"type": -1,
			"desc": ""
		}
	}
}

    */
}

(function() {
    'use strict';

    // https://stackoverflow.com/questions/6832596/how-to-compare-software-version-number-using-js-only-number
    function comp_ver(ver1, ver2) {
        ver1 = ver1.split('.').map( s => s.padStart(10) ).join('.');
        ver2 = ver2.split('.').map( s => s.padStart(10) ).join('.');
        return ver1 < ver2;
    }

    addEventListener('message',function(e) {
        if(e.data.type==='pakku_event_danmaku_loaded') {
            const ver=e.data.pakku_version||'0';
            if(NEED_SENDER_INFO) {
                if(comp_ver(ver,'8.7'))
                    return alert('pakku 版本过低');
                postMessage({type: 'pakku_get_danmaku_with_info'},'*');
            } else if(NEED_UID) {
                if(comp_ver(ver,'8.7'))
                    return alert('pakku 版本过低');
                postMessage({type: 'pakku_get_danmaku_with_uid'},'*');
            } else {
                postMessage({type: 'pakku_get_danmaku'},'*');
            }
        } else if(e.data.type==='pakku_return_danmaku') {
            const D=e.data.resp.filter(should_display);
            console.log('pakku advanced filter: '+D.length+' danmakus left');
            let xml='<i>';
            D.forEach(d=>{
                xml+=d.xml_src;
            });
            xml+='</i>';
            window.postMessage({type: 'pakku_set_xml_bounce', xml: xml},'*');
        }
    });
})();