window.ToolIsFollow = false;

async function FileGet(follower=false){
  let f = ''
  if (Active == 'ConfigUI') {
    if (follower) f = '?f=true'
    const res = await fetch('/api/conf'+f);
    const body = await res.text();
    if(!res.ok){
      handleError(res)
      return
    }
    editor.session.setValue(body);
  }
  else {
    if (follower) f = '&f=true'
    const res = await fetch('/api/file?name=' + Active + f);
    const body = await res.json();
    if(!res.ok){
      handleError(res)
      return
    }
    editor.session.setValue(body.data);
  }
}

async function FileSave(){
  if (Active == 'ConfigUI') {
    const res = await fetch('/api/conf', {
      method: 'POST',
      body: editor.getValue(),
      headers: new Headers({
        'Content-Type': 'application/json'
      })
    })
    if (res.ok) window.location.reload();
    else handleError(res)
  }
  else {
    const res = await fetch('/api/file', {
      method: 'POST',
      body: JSON.stringify({"name":Active,"data":editor.getValue()}),
      headers: new Headers({
        'Content-Type': 'application/json'
      })
    })
    if(!res.ok) handleError(res)
  }
}

async function FileApply(){
  if (Active == 'ConfigUI') {
    return;
  }
  else {
    const res = await fetch('/api/apply?name='+ Active, {
      method: 'POST',
    })
    if(!res.ok){
      handleError(res)
      return
    }
    const result = await res.text()
    result_editor.session.setValue(result)
  }
}

async function handleError(res){
  const msg = await res.text()
  ShowError(msg)
}

// starting point
(function(){
  // setup ace editor
  setEditor()

  // setup result code block
  setResult()
  
  // for follow mode
  setInterval((async ()=>{
    if (ToolIsFollow){
      await FileGet(true)
      editor.gotoLine(editor.session.getLength());
    }
  }), 1000)
}())