// Create a new Helcim payment plan
const HELCIM_API_BASE = 'https://api.helcim.com/v2'

export default defineEventHandler(async (event) => {
  try {
    const config = useRuntimeConfig(event)
    const body = await readBody(event)

    // Validate required fields
    if (!body.name || !body.amount || !body.frequency) {
      throw createError({
        statusCode: 400,
        statusMessage: 'Name, amount, and frequency are required'
      })
    }

    const helcimToken = config.public.helcimToken || process.env.NUXT_PUBLIC_HELCIM_TOKEN

    console.log('Creating payment plan:', body.name)

    const response = await fetch(`${HELCIM_API_BASE}/payment-plans`, {
      method: 'POST',
      headers: {
        'accept': 'application/json',
        'content-type': 'application/json',
        'api-token': helcimToken
      },
      body: JSON.stringify({
        planName: body.name,
        planAmount: parseFloat(body.amount),
        planFrequency: body.frequency, // 'monthly', 'weekly', 'biweekly', etc.
        planCurrency: body.currency || 'CAD'
      })
    })

    if (!response.ok) {
      const errorText = await response.text()
      console.error('Failed to create payment plan:', response.status, errorText)

      throw createError({
        statusCode: response.status,
        statusMessage: `Failed to create payment plan: ${errorText}`
      })
    }

    const planData = await response.json()
    console.log('Payment plan created:', planData)

    return {
      success: true,
      plan: planData
    }

  } catch (error) {
    console.error('Error creating Helcim payment plan:', error)
    throw createError({
      statusCode: error.statusCode || 500,
      statusMessage: error.message || 'Failed to create payment plan'
    })
  }
})