#!/bin/bash

# AI generated
urlencode() {
  local LANG=C i x
  for (( i = 0; i < ${#1}; i++ )); do
    x="${1:i:1}"
    [[ "$x" =~ [a-zA-Z0-9.~_-] ]] && echo -n "$x" || printf '%%%02X' "'$x"
  done
  echo
}

if [[ ! -z ${CURL_CONFIG_IDS} ]]; then
  mkdir -p ${CURL_CONFIG_DIR:-/opt/etc/curl}

  for CURL_CONFIG_PAIR in ${CURL_CONFIG_IDS}; do
    if [[ ${CURL_CONFIG_PAIR} =~ ^([^:]+):(.+)$ ]]; then
      CURL_CONFIG_ID=${BASH_REMATCH[1]}
      CURL_CONFIG_ENVVAR_KEY=${BASH_REMATCH[2]}
      CURL_CONFIG_ENVVAR_USERNAME="CURL_CONFIG_${CURL_CONFIG_ENVVAR_KEY}_USERNAME"
      CURL_CONFIG_ENVVAR_PASSWORD="CURL_CONFIG_${CURL_CONFIG_ENVVAR_KEY}_PASSWORD"

      CURL_CONFIG_USERNAME=`urlencode ${!CURL_CONFIG_ENVVAR_USERNAME}`
      CURL_CONFIG_PASSWORD=`urlencode ${!CURL_CONFIG_ENVVAR_PASSWORD}`

      if [[ -z ${CURL_CONFIG_USERNAME} ]]; then
        echo "The curl configuration '${CURL_CONFIG_ID}' has no corresponding environment variable: ${CURL_CONFIG_ENVVAR_USERNAME}; ignoring"
      elif [[ -z ${CURL_CONFIG_PASSWORD} ]]; then
        echo "The curl configuration '${CURL_CONFIG_ID}' has no corresponding environment variable: ${CURL_CONFIG_ENVVAR_PASSWORD}; ignoring"
      else
        CURL_CONFIG_FILE=${CURL_CONFIG_DIR:-/opt/etc/curl}/${CURL_CONFIG_ID}.cfg
        echo "user = ${CURL_CONFIG_USERNAME}:${CURL_CONFIG_PASSWORD}" > ${CURL_CONFIG_FILE}

        echo "Added CURL configuration file: ${CURL_CONFIG_FILE}"
      fi
    else
      echo "The curl configuration format in 'CURL_CONFIG_IDS' is invalid: ${CURL_CONFIG_PAIR}"
      exit 1
    fi
  done
fi