nfc-attendance-hub/lib/semaphore.ts

import axios from 'axios'

const SEMAPHORE_API_URL = 'https://api.semaphore.co/api/v4'

export interface SemaphoreResponse {
  success: boolean
  messageId?: string
  error?: string
}

export async function sendSms(
  apiKey: string,
  senderName: string,
  phone: string,
  message: string
): Promise<SemaphoreResponse> {
  try {
    const response = await axios.post(
      `${SEMAPHORE_API_URL}/messages`,
      {
        apikey: apiKey,
        number: phone,
        message,
        sendername: senderName,
      },
      { timeout: 15000 }
    )

    const data = response.data
    if (Array.isArray(data) && data.length > 0) {
      const msg = data[0]
      if (msg.status === 'Queued' || msg.status === 'Sent') {
        return { success: true, messageId: String(msg.message_id) }
      }
      return { success: false, error: msg.status || 'Unknown status' }
    }
    return { success: false, error: 'Empty response from Semaphore' }
  } catch (err: any) {
    const errorMsg =
      err.response?.data?.message ||
      err.response?.data ||
      err.message ||
      'SMS send failed'
    return { success: false, error: String(errorMsg) }
  }
}

export async function getBalance(apiKey: string): Promise<number | null> {
  try {
    const response = await axios.get(`${SEMAPHORE_API_URL}/account`, {
      params: { apikey: apiKey },
      timeout: 10000,
    })
    return response.data?.credit_balance ?? null
  } catch {
    return null
  }
}