// ==UserScript==
// @name         MWI-Hit-Tracker
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  战斗过程中实时显示攻击命中目标
// @author       Artintel
// @license MIT
// @match        https://www.milkywayidle.com/*
// @match        https://test.milkywayidle.com/*
// @icon         https://www.milkywayidle.com/favicon.svg
// @grant        none
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    let monstersHP = [];
    let playersMP = [];
    hookWS();

    function hookWS() {
        const dataProperty = Object.getOwnPropertyDescriptor(MessageEvent.prototype, "data");
        const oriGet = dataProperty.get;

        dataProperty.get = hookedGet;
        Object.defineProperty(MessageEvent.prototype, "data", dataProperty);

        function hookedGet() {
            const socket = this.currentTarget;
            if (!(socket instanceof WebSocket)) {
                return oriGet.call(this);
            }
            if (socket.url.indexOf("api.milkywayidle.com/ws") <= -1 && socket.url.indexOf("api-test.milkywayidle.com/ws") <= -1) {
                return oriGet.call(this);
            }

            const message = oriGet.call(this);
            Object.defineProperty(this, "data", { value: message }); // Anti-loop

            return handleMessage(message);
        }
    }

    // 动画效果
    function getElementCenter(element) {
        const rect = element.getBoundingClientRect();
        return {
            x: rect.left + rect.width/2,
            y: rect.top + rect.height/2
        };
    }

    function createParabolaPath(startElem, endElem) {
        const start = getElementCenter(startElem);
        const end = getElementCenter(endElem);

        // 弧度调整位置（修改这个数值控制弧度）
        const curveHeight = -80; // 数值越大弧度越高（负值向上弯曲）

        const controlPoint = {
            x: (start.x + end.x) / 2,
            y: Math.min(start.y, end.y) + curveHeight // 调整这里
        };

        return `M ${start.x} ${start.y} Q ${controlPoint.x} ${controlPoint.y}, ${end.x} ${end.y}`;
    }

    function createEffect(startElem, endElem) {
        const svg = document.getElementById('svg-container');
        const path = document.createElementNS("http://www.w3.org/2000/svg", "path");

        Object.assign(path.style, {
            stroke: '#FF6B6B',
            strokeWidth: '2px',
            fill: 'none',
            strokeLinecap: 'round',
            filter: 'drop-shadow(0 0 4px rgba(255,107,107,0.8))'
        });
        path.setAttribute('d', createParabolaPath(startElem, endElem));
        // 入场动画
        const length = path.getTotalLength();
        path.style.strokeDasharray = length;
        path.style.strokeDashoffset = length;

        svg.appendChild(path);

        // 绘制动画
        requestAnimationFrame(() => {
            path.style.transition = 'stroke-dashoffset 0.1s linear';
            path.style.strokeDashoffset = '0';
        });

        // 自动移除
        setTimeout(() => {
            path.style.opacity = '0';
            path.style.transition = 'opacity 0.1s linear';
            setTimeout(() => svg.removeChild(path), 500);
        }, 800);
    }

    // 添加窗口resize监听
    let isResizeListenerAdded = false;
    function createLine(from, to) {
        const playersContainer = document.querySelector(".BattlePanel_playersArea__vvwlB").children[0];
        const effectFrom = playersContainer.children[from];
        const monsterContainer = document.querySelector(".BattlePanel_monstersArea__2dzrY").children[0];
        const effectTo = monsterContainer.children[to];
        const svg = document.getElementById('svg-container');
        if(!svg){
            const svgContainer = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
            svgContainer.id = 'svg-container';
            Object.assign(svgContainer.style, {
                position: 'fixed',
                top: '0',
                left: '0',
                width: '100%',
                height: '100%',
                pointerEvents: 'none',
                overflow: 'visible',
                zIndex: '190'
            });

            // 设置SVG原生属性
            svgContainer.setAttribute('viewBox', `0 0 ${window.innerWidth} ${window.innerHeight}`);
            svgContainer.setAttribute('preserveAspectRatio', 'none');
            // 初始化viewBox
            const updateViewBox = () => {
                svgContainer.setAttribute('viewBox', `0 0 ${window.innerWidth} ${window.innerHeight}`);
            };
            updateViewBox();
            playersContainer.appendChild(svgContainer);
            //document.body.appendChild(svgContainer);
            // 添加resize监听（确保只添加一次）
            if (!isResizeListenerAdded) {
                window.addEventListener('resize', () => {
                    updateViewBox();
                    // 可以在这里添加已有路径的更新逻辑（如果需要）
                });
                isResizeListenerAdded = true;
            }
        }

        createEffect(effectFrom, effectTo);
    }

    function handleMessage(message) {
        let obj = JSON.parse(message);
        if (obj && obj.type === "new_battle") {
            monstersHP = obj.monsters.map((monster) => monster.currentHitpoints);
            playersMP = obj.players.map((player) => player.currentManapoints);
        } else if (obj && obj.type === "battle_updated" && monstersHP.length) {
            const mMap = obj.mMap;
            const pMap = obj.pMap;
            const playerIndices = Object.keys(obj.pMap);

            let castPlayer = -1;
            playerIndices.forEach((userIndex) => {
                if(pMap[userIndex].cMP < playersMP[userIndex]){castPlayer = userIndex;}
                playersMP[userIndex] = pMap[userIndex].cMP;
            });

            monstersHP.forEach((mHP, mIndex) => {
                const monster = mMap[mIndex];
                if (monster) {
                    const hpDiff = mHP - monster.cHP;
                    monstersHP[mIndex] = monster.cHP;
                    if (hpDiff > 0) {
                        if (playerIndices.length > 1) {
                            playerIndices.forEach((userIndex) => {
                                if(userIndex === castPlayer) {
                                    createLine(userIndex, mIndex);
                                }
                            });
                        } else {
                            createLine(playerIndices[0], mIndex);
                        }
                    }
                }
            });

        }
        return message;
    }

})();