#!/bin/bash
# shellcheck disable=SC2181 disable=SC1091 disable=SC2236

source "${TMPDIR}/androot.source"
source "${TMPDIR}/androot.env"
log_diag "rootfsinstall is now executing, with arguments \"${*}\""

case "${1}" in
  "--download")
    log_diag "Using download mode"
    if [ -f "${TMPDIR}/rootfs.env" ]; then
      source "${TMPDIR}/rootfs.env"
      if [ "${ARCH_TARGET_WRITTEN}" == "${ARCH_TARGET}" ] && [ "${DISTRIBUTION_WRITTEN}" == "${DISTRIBUTION}" ]; then
        echo "#### found existing rootfs archive" &>> "${TMPDIR}/androot.log"
        log_askyn "true" "androot found a existing rootfs archive matching your configuration, do you want to use it? "
        if [ "${ANSWER}" == "true" ]; then
          echo "#### skipping download" &>> "${TMPDIR}/androot.log"
          exit 0
        else
          echo "#### removing existing rootfs archive" &>> "${TMPDIR}/androot.log"
          rm -rf "${TMPDIR}/rootfs.tar.gz"
        fi
      else
        echo "#### removing existing rootfs archive" &>> "${TMPDIR}/androot.log"
        log_diag "Removing existing rootfs archive (not matching)"
        rm -rf "${TMPDIR}/rootfs.tar.gz"
      fi
    fi
    log_exec "Downloading rootfs"
    case "${ARCH_TARGET}" in
      "x86_64") ;;
      "arm64") ;;
      *)
        echo "#### invalid architecture \"${ARCH_TARGET}\"" &>> "${TMPDIR}/androot.log"
        log_fail
        log_error "Internal inconsistency detected: Invalid target architecture \"${ARCH_TARGET}\""
        exit 1;;
    esac
    case "${DISTRIBUTION}" in
      "archlinux") ;;
      *)
        echo "#### invalid distribution \"${DISTRIBUTION}\"" &>> "${TMPDIR}/androot.log"
        log_fail
        log_error "Internal inconsistency detected: Invalid distribution \"${DISTRIBUTION}\""
        exit 1;;
    esac
    echo "#### download rootfs (${DOWNLOADSERVER_ROOTFS}${DISTRIBUTION}-${ARCH_TARGET}.tar.gz)" &>> "${TMPDIR}/androot.log"
    wget "${DOWNLOADSERVER_ROOTFS}${DISTRIBUTION}-${ARCH_TARGET}.tar.gz" -qqq -O "${TMPDIR}/rootfs.tar.gz" &>> "${TMPDIR}/androot.log"
    if [ ! -f "${TMPDIR}/rootfs.tar.gz" ]; then
      echo "#### rootfs not present" &>> "${TMPDIR}/androot.log"
      log_fail
    fi
    echo -e "ARCH_TARGET_WRITTEN=${ARCH_TARGET}\nDISTRIBUTION_WRITTEN=${DISTRIBUTION}" > "${TMPDIR}/rootfs.env"
    log_ok;;
  "--decompress")
    log_diag "Using decompress mode"
    log_exec "Decompressing archive"
    echo "#### decompress rootfs" &>> "${TMPDIR}/androot.log"
    bsdtar -xpf "${TMPDIR}/rootfs.tar.gz" -C "${LOCATION}/rootfs" &>> "${TMPDIR}/androot.log"
    if [ ! "${?}" == "0" ]; then
      echo "#### bsdtar failed" &>> "${TMPDIR}/androot.log"
      log_fail
      exit 1
    fi
    log_ok;;
  *)
    log_error "--download or --decompress required"
    exit 1;;
esac