/**
 * 一次性迁移脚本：把 SkillSet 中的 RType/EType/speed/time 刷入各技能 prefab 的 SkillView 序列化字段。
 * 用法: node tools/sync-skill-prefab.js
 * 注意: 直接改写 prefab JSON，运行前请保证工作区已提交。
 */
const fs = require('fs');
const path = require('path');

const ROOT = path.resolve(__dirname, '..');
const SKILL_SET = path.join(ROOT, 'assets/script/game/common/config/SkillSet.ts');
const PREFAB_DIR = path.join(ROOT, 'assets/resources/game/skill/atk');
// SkillView 组件在 prefab 中的脚本类 cid
const SKILL_VIEW_CID = '57aabs7TE1J5obTAZczc+64';

const RTYPE = { linear: 0, bezier: 1, fixed: 2, fixedEnd: 3 };
const ETYPE = { animationEnd: 0, timeEnd: 1, collision: 2 };

/** 从 SkillSet.ts 解析 sp_name -> {runType, endType, speed, time} */
function parseSkillSet(src) {
    const map = new Map();
    // 匹配每个技能条目块
    const entryRe = /\d+:\s*\{([\s\S]*?)\n\s*\},/g;
    let m;
    while ((m = entryRe.exec(src)) !== null) {
        const body = m[1];
        const sp = body.match(/sp_name:\s*"([^"]+)"/);
        if (!sp) continue;
        const spName = sp[1];

        const rt = body.match(/RType:\s*RType\.(\w+)/);
        const et = body.match(/EType:\s*EType\.(\w+)/);
        const speed = body.match(/speed:\s*([\d.]+)/);
        const time = body.match(/\btime:\s*([\d.]+)/);

        const entry = {
            runType: rt ? RTYPE[rt[1]] : undefined,
            endType: et ? ETYPE[et[1]] : undefined,
            speed: speed ? Number(speed[1]) : undefined,
            time: time ? Number(time[1]) : 0,
        };
        // 多个技能可共用同一 sp_name，保留首个非 undefined 组合
        if (!map.has(spName)) map.set(spName, entry);
    }
    return map;
}

function main() {
    const src = fs.readFileSync(SKILL_SET, 'utf8');
    const confMap = parseSkillSet(src);

    const files = fs.readdirSync(PREFAB_DIR).filter(f => f.endsWith('.prefab'));
    const report = { updated: [], skipped: [], noConf: [] };

    for (const file of files) {
        const spName = path.basename(file, '.prefab');
        const conf = confMap.get(spName);
        const fp = path.join(PREFAB_DIR, file);
        const json = JSON.parse(fs.readFileSync(fp, 'utf8'));

        // 定位 SkillView 组件
        const comp = json.find(o => o && o.__type__ === SKILL_VIEW_CID);
        if (!comp) { report.skipped.push(file + ' (no SkillView)'); continue; }

        if (!conf) { report.noConf.push(file); continue; }

        if (conf.runType !== undefined) comp.runType = conf.runType;
        if (conf.endType !== undefined) comp.endType = conf.endType;
        if (conf.speed !== undefined) comp.speed = conf.speed;
        comp.time = conf.time ?? 0;

        fs.writeFileSync(fp, JSON.stringify(json, null, 2) + '\n', 'utf8');
        report.updated.push(`${file} -> runType=${comp.runType} endType=${comp.endType} speed=${comp.speed} time=${comp.time}`);
    }

    console.log('=== updated ===');
    report.updated.forEach(s => console.log('  ' + s));
    console.log('=== no config matched ===');
    report.noConf.forEach(s => console.log('  ' + s));
    console.log('=== skipped ===');
    report.skipped.forEach(s => console.log('  ' + s));
}

main();