import fs from 'node:fs';
import path from 'node:path';
import {skillDir,slug} from './lib.mjs';
export function copyStatic(from,to){
  const source=fs.realpathSync(from);
  if(!fs.existsSync(path.join(source,'index.html')))throw new Error('Choose a built static folder containing index.html.');
  function validate(dir){for(const e of fs.readdirSync(dir,{withFileTypes:true})){
    if(e.isSymbolicLink())throw new Error('Static bundle contains a symlink: '+e.name);
    if(/^(\.env(?:\..*)?|\.git|node_modules)$|\.(pem|key|keystore|jks|p12)$/i.test(e.name))throw new Error('Exclude credentials/development folders from static output: '+e.name);
    if(e.isDirectory())validate(path.join(dir,e.name));
  }}
  validate(source);fs.cpSync(source,to,{recursive:true,errorOnExist:true,force:false});
}
export function createWebProject(root,name,staticFolder=null){
  slug(name);const to=path.join(root,'creations',name);
  if(fs.existsSync(to))throw new Error('Creation already exists; edit it in place: '+to);
  const pkg='dev.chloe.creations.'+name.replaceAll('-','');
  // Stage in a sibling so a rejected import never leaves a half-created app.
  fs.mkdirSync(path.dirname(to),{recursive:true});const temp=fs.mkdtempSync(path.join(path.dirname(to),'.import-'));
  try{
    fs.cpSync(path.join(skillDir,'assets/web-app'),temp,{recursive:true});
    if(staticFolder){fs.rmSync(path.join(temp,'assets/www'),{recursive:true,force:true});copyStatic(staticFolder,path.join(temp,'assets/www'));}
    for(const file of ['AndroidManifest.xml','src/WebActivity.java']){const p=path.join(temp,file);fs.writeFileSync(p,fs.readFileSync(p,'utf8').replaceAll('PACKAGE_ID',pkg).replaceAll('APP_LABEL',name.split('-').map(s=>s[0].toUpperCase()+s.slice(1)).join(' ')));}
    fs.writeFileSync(path.join(temp,'creation.json'),JSON.stringify({name,package:pkg,workspace:'../..',version:1},null,2)+'\n');
    fs.renameSync(temp,to);
  }catch(e){fs.rmSync(temp,{recursive:true,force:true});throw e;}
  console.log(JSON.stringify({created:to,package:pkg,next:'node '+path.join(to,'build.mjs')},null,2));return to;
}