const DEBUG = process.env.IDEMPIERE_DEBUG === '1' || process.env.IDEMPIERE_DEBUG === 'true'

// Hard ceiling for a single iDempiere call. nginx already cuts the upstream at 60 s
// (504), this only guards the paths that bypass nginx or hang before headers.
// Deliberately generous: reports / big lists legitimately take a while.
export const IDEMPIERE_FETCH_TIMEOUT_MS = Number(process.env.IDEMPIERE_FETCH_TIMEOUT_MS) > 0
  ? Number(process.env.IDEMPIERE_FETCH_TIMEOUT_MS)
  : 90_000

/**
 * Remember the outcome of the last iDempiere call on this request so
 * refreshTokenHelper can tell an auth failure (refresh + retry is right) from a
 * backend failure (502/504/timeout — retrying only piles more load on a stalled
 * iDempiere; the 2026-09-10 incident was exactly that retry storm).
 */
export function noteIdempiereError(event: any, error: any, url: string) {
  if (!event?.context) return
  const status = Number(error?.response?.status ?? error?.status ?? error?.statusCode ?? 0) || 0
  event.context.lastIdempiereError = { status, url, at: Date.now(), name: error?.name }
}
export function clearIdempiereError(event: any) {
  if (event?.context?.lastIdempiereError) event.context.lastIdempiereError = null
}

export default async function fetchHelper(event: any, url: string, method: string = 'GET', token: string, body: any) {
  const config = useRuntimeConfig()
  const logshipToken = getCookie(event, 'logship_it')
  let options: any = {}
  if(token || logshipToken) {
    options = {
      ...options,
      headers: {
        'Content-Type': 'application/json',
        Accept: 'application/json',
        Authorization: 'Bearer '+(token || logshipToken)
      }
    }
  }
  if(body) {
    options = {
      ...options,
      body: body
    }
  }

  const fullUrl = config.api.url+'/'+url

  if (DEBUG) {
    console.log('╔════════════════════════════════════════════════════════')
    console.log('║ iDEMPIERE API REQUEST')
    console.log('╠════════════════════════════════════════════════════════')
    console.log('║ Timestamp:', new Date().toISOString())
    console.log('║ Method:', method)
    console.log('║ URL:', fullUrl)
    console.log('║ Headers:', JSON.stringify({
      ...options.headers,
      Authorization: options.headers?.Authorization ? 'Bearer [REDACTED]' : undefined
    }, null, 2))
    if(body) {
      console.log('║ Body:', JSON.stringify(body, null, 2))
    }
    console.log('╚════════════════════════════════════════════════════════')
  }

  const startTime = Date.now()

  try {
    const response = await $fetch(fullUrl, {
      method: method,
      // ofetch retries GET once on 408/425/429/500/502/503/504 by default — never
      // do that against iDempiere: the routes already have their own refresh+retry
      // and a stalled backend must not be hit twice per call.
      retry: 0,
      timeout: IDEMPIERE_FETCH_TIMEOUT_MS,
      ...options
    })
    clearIdempiereError(event)

    if (DEBUG) {
      const duration = Date.now() - startTime
      console.log('╔════════════════════════════════════════════════════════')
      console.log('║ iDEMPIERE API RESPONSE')
      console.log('╠════════════════════════════════════════════════════════')
      console.log('║ Timestamp:', new Date().toISOString())
      console.log('║ Method:', method)
      console.log('║ URL:', fullUrl)
      console.log('║ Duration:', duration, 'ms')
      console.log('║ Status: SUCCESS')
      console.log('║ Response:', JSON.stringify(response, null, 2))
      console.log('╚════════════════════════════════════════════════════════')
    }

    return response
  } catch (error: any) {
    noteIdempiereError(event, error, url)
    if (DEBUG) {
      const duration = Date.now() - startTime
      console.log('╔════════════════════════════════════════════════════════')
      console.log('║ iDEMPIERE API ERROR')
      console.log('╠════════════════════════════════════════════════════════')
      console.log('║ Timestamp:', new Date().toISOString())
      console.log('║ Method:', method)
      console.log('║ URL:', fullUrl)
      console.log('║ Duration:', duration, 'ms')
      console.log('║ Status: ERROR')
      console.log('║ Error:', JSON.stringify({name: error?.name, message: error?.message, statusCode: error?.statusCode, data: error?.data}, null, 2))
      console.log('╚════════════════════════════════════════════════════════')
    }
    throw error
  }
}