defmodule PaystackBase do
  use HTTPoison.Base
  import ExPaystack.PaystackResponse, only: [decode_response_body_data: 1]

  @base_url "https://api.paystack.co"

  @paystack_secret_key Application.fetch_env!(:ex_paystack, :paystack_secret_key)

  @headers [
    Accept: "Application/json",
    "Cache-Control": "no-cache",
    Authorization: "Bearer #{@paystack_secret_key}"
  ]
  @options [ssl: [{:versions, [:"tlsv1.2"]}]]

  def process_request_url(url, headers \\ []) do
    @base_url <> url
  end

  def api_call(url, method, params \\ nil) do
    case method do
      :post ->
        url
        |> process_request_url
        |> HTTPoison.post(
          Poison.encode!(params),
          @headers,
          @options
        )
        |> decode_response_body_data

      :get ->
        url
        |> process_request_url
        |> HTTPoison.get(@headers, params: params)
        |> decode_response_body_data

      _ ->
        {:error, "invalid HTTP method"}
    end
  end
end