#!/bin/sh
#
#
#
#

. ./otsclient.sh
. ./responsetoclient.sh
. ./trace.sh

main()
{
  trace "Entering main()..."

  local step=0
  local cmd
  local http_method
  local line
  local content_length
  local response
  local returncode

  while read line; do
    line=$(echo "${line}" | tr -d '\r\n')
    trace "[main] line=${line}"

    if [ "${cmd}" = "" ]; then
      # First line!
      # Looking for something like:
      # GET /cmd/params HTTP/1.1
      # POST / HTTP/1.1
      cmd=$(echo "${line}" | cut -d '/' -f2 | cut -d ' ' -f1)
      trace "[main] cmd=${cmd}"
      http_method=$(echo "${line}" | cut -d ' ' -f1)
      trace "[main] http_method=${http_method}"
      if [ "${http_method}" = "GET" ]; then
        step=1
      fi
    fi
    if [ "${line}" = "" ]; then
      trace "[main] empty line"
      if [ ${step} -eq 1 ]; then
        trace "[main] body part finished, disconnecting"
        break
      else
        trace "[main] headers part finished, body incoming"
        step=1
      fi
    fi
    # line=content-length: 406
    case "${line}" in *[cC][oO][nN][tT][eE][nN][tT]-[lL][eE][nN][gG][tT][hH]*)
      content_length=$(echo "${line}" | cut -d ':' -f2)
      trace "[main] content_length=${content_length}";
      ;;
    esac
    if [ ${step} -eq 1 ]; then
      trace "[main] step=${step}"
      if [ "${http_method}" = "POST" ]; then
        read -n ${content_length} line
        trace "[main] line=${line}"
      fi
      case "${cmd}" in
        stamp)
          # GET http://192.168.111.152:8080/stamp/1ddfb769eb0b8876bc570e25580e6a53afcf973362ee1ee4b54a807da2e5eed7

          response=$(stamp $(echo "${line}" | cut -d ' ' -f2 | cut -d '/' -f3))
          response_to_client "${response}" ${?}
          break
          ;;
        upgrade)
          # GET http://192.168.111.152:8080/upgrade/1ddfb769eb0b8876bc570e25580e6a53afcf973362ee1ee4b54a807da2e5eed7

          response=$(upgrade $(echo "${line}" | cut -d ' ' -f2 | cut -d '/' -f3))
          response_to_client "${response}" ${?}
          break
          ;;
        verify)
          # POST http://192.168.111.152:8080/verify
          # BODY {"hash":"1ddfb769eb0b8876bc570e25580e6a53afcf973362ee1ee4b54a807da2e5eed7","base64otsfile":"AE9wZW5UaW1lc3RhbXBzAABQcm9vZ...gABYiWDXPXGQEDxNch"}

          response=$(verify "${line}")
          response_to_client "${response}" ${?}
          break
          ;;
        info)
          # POST http://192.168.111.152:8080/info
          # BODY {"base64otsfile":"AE9wZW5UaW1lc3RhbXBzAABQcm9vZ...gABYiWDXPXGQEDxNch"}

          response=$(info "${line}")
          response_to_client "${response}" ${?}
          break
          ;;
      esac
      break
    fi
  done
  trace "[main] exiting"
  return 0
}

export TRACING

main
exit $?