// Exercise the actual UI functions with a synthetic API, without booting a browser.
const assert = require('node:assert/strict');
const fs = require('node:fs');
const path = require('node:path');
const vm = require('node:vm');
const {webcrypto} = require('node:crypto');
const source = fs.readFileSync(path.resolve(__dirname, '../../../arr_web/static/app.js'), 'utf8');
const boot = '  boot();\n})();';
assert(source.endsWith(boot+'\n') || source.endsWith(boot));

function harness(respond) {
  const elements=new Map(), storage=new Map(), storageReads=[], calls=[];
  const element=selector => {
    if (!elements.has(selector)) elements.set(selector,{value:'', disabled:false, hidden:false, textContent:'', innerHTML:'',style:{},
      classList:{add(){},remove(){},toggle(){},contains(){return false;}},setAttribute(){},removeAttribute(){},querySelectorAll(){return [];},scrollIntoView(){},focus(){}});
    return elements.get(selector);
  };
  const context=vm.createContext({Headers, console, Date, Intl, Uint8Array,
    document:{hidden:false,querySelector:element},
    window:{ARRI18n:{t:key=>key,text:value=>value,errorMessage:code=>code,formatInteger:value=>String(value),formatMonth:value=>value},crypto:webcrypto,
      setTimeout(){return 1;},clearTimeout(){},location:{replace(){}}},
    localStorage:{setItem:(k,v)=>storage.set(k,v),getItem:k=>{storageReads.push(k);return storage.get(k);},removeItem:k=>storage.delete(k)},
    fetch:async (url, options) => {calls.push({url,method:options.method||'GET',body:options.body,csrf:options.headers.get('X-ARR-CSRF')});return respond(url,options,calls);},
  });
  const exports='state, api, submitARRDownload, rememberARRIntent, acceptARRDownloadTask, handleARRDownloadDateChange, initARRDownload, loadARRDownloadTask, loadARRDataReview, renderARRDataReview, arrDataReviewCanFinalize, saveARRDataReviewItem, finalizeARRDataReview, trackARRDataReviewDraft, parseARRDataReviewValue, selectARRPendingReview, strictReviewPrice, reviewPriceInput, renderDailyPriceReview, saveDailyPriceReviewItem, loadDailyPriceReview, dailyPriceReviewCanFinalize, dailyPriceReviewHasUnsavedChanges, finalizeDailyPriceReview, confirmDailyPriceReviewCancel';
  vm.runInContext(source.replace(boot,`  globalThis.subject = {${exports}};\n})();`),context);
  const subject=context.subject;
  Object.assign(subject.state,{arrDownloadReady:true,arrDownloadLoaded:true,arrDownloadStorageKey:'test',arrDownloadUsername:'operator',csrf:'fixture'});
  element('#arr-download-date').value='2026-09-16';
  const row=(itemId,value='')=>{
    const input={value,focus(){},closest:()=>node};
    const node={dataset:{arrDataReviewItemId:itemId},querySelector:()=>input};
    return {input,button:{closest:()=>node}};
  };
  return {...subject,calls,storage,storageReads,element,row,submit:()=>subject.submitARRDownload({preventDefault(){}})};
}
const response=(status,data,code) => ({status,ok:status<400,json:async()=>code?{ok:false,error:{code}}:{ok:true,data}});
const scopedKey=(context='production',username='operator')=>`arr:last-download:v2:${encodeURIComponent(context)}:${encodeURIComponent(username)}`;
module.exports={harness,response,scopedKey};