const path = require('path')
const aiModule = require(path.join(__dirname, '../../../../ai/ai.js'))

/** 入参：prompt, model, imageUrl（参考图地址，如 data URL 或 http URL） */
async function executeImg2text({ prompt, model, imageUrl, folderPath }) {
  const p = prompt != null ? String(prompt).trim() : ''
  const url = imageUrl != null ? String(imageUrl).trim() : ''
  if (!url) return { success: false, error: 'img2text 缺少 imageUrl' }
  const m = model != null ? String(model).trim().toLowerCase() : ''
  const action = m === 'doubao' ? 'doubao_img2text' : 'img2text'
  try {
    const result = await aiModule.run(action, p, url)
    if (!result.success) return { success: false, error: result.error || 'img2text 失败' }
    const data = result.data
    const text = data?.choices?.[0]?.message?.content ?? data?.choices?.[0]?.text ?? ''
    return { success: true, value: typeof text === 'string' ? text : String(text) }
  } catch (e) {
    return { success: false, error: (e && (e.message || String(e))) || 'img2text 异常' }
  }
}

module.exports = { executeImg2text }