#!/usr/bin/env bash

readonly toolName=composer

# Already defined by sequencer.sh, but may be overwritten
#readonly seq_configName="${sq_scriptName:?}.cfg"
#readonly seq_configTemplate="${seq_origin:?}/${sq_configName:?}.example"

sq_aptOpt=
sq_config=0
sq_composerBin=

seq_config() {
  # Apt cmdline option to suppress user interaction
  interactive || sq_aptOpt="-y"

  # Disable error checks if external scripts are used
  # e.g. error on unbound variables
  #disableErrorCheck

  # Return of non zero value will abort the sequence
  return 0
}

getComposer() {
  local lLocalOnly=0
  local lGlobalOnly=0
  case "${1:-}" in
    -l) lLocalOnly=1 ;;
    -g) lGlobalOnly=1 ;;
  esac
  if [[ -n "${sq_composerBin:-}" ]] && [[ -z "${1:-}" ]] ; then
    return 0
  fi
  local lComp=

  if (( ! lGlobalOnly )) ; then
    lComp="$(ls composer 2>>/dev/null)"
    lComp="${lComp:-"$(ls composer.phar 2>>/dev/null)"}"
  fi
  if (( ! lLocalOnly )) ; then
    lComp="${lComp:-"$(ls /usr/local/bin/composer 2>>/dev/null)"}"
  fi

  [[ -z "${lComp:-}" ]] && return 1
  sq_composerBin="$(readlink -f -- "${lComp}")"
  return 0
}


step_1_info() { echo "Determine status of ${toolName} in current directory or globally"; }
step_1_alias() { echo "status"; }
step_1() {
  local lDir="$(pwd)"
  local lComp
  
  getComposer || die "No composer installed"

  info    "Composer found: ${sq_composerBin}"
  info -a "$(COMPOSER_ALLOW_SUPERUSER=1 "${sq_composerBin}" --version)"
  info    "Available php versions:"
  info -a "$(update-alternatives --list php)"
}

step_10_info() { 
  echoinfoArgs "[OPTIONS] [VERSION]"
  echo "Install ${toolName}"
  echoinfo " [OPTIONS]"
  echoinfo "   -l: (default) install composer.phar to the current directory"
  echoinfo "   -g: install composer globally to /usr/local/bin"
  echoinfo " [VERSION]"
  echoinfo "   Install this specific ${toolName} version"
}
step_10_alias() { echo "install"; }
step_10() {
  shift
  local lLocal=1
  local lArgs=()
  for _ in "${@}" ; do
    case "${1:-}" in
      -l) shift ;;
      -g) 
        lLocal=0
        lArgs+=(--install-dir="/usr/local/bin")
        lArgs+=(--filename="composer")
        shift ;;
      --) shift && break ;;
      -*) die "Unkown option ${1}" ;;
    esac
  done

  local getArg="-l"
  (( ! lLocal )) && getArg="-g"
  getComposer ${getArg} && die "Composer already installed: ${sq_composerBin}"
  
  [[ -n "${1:-}" ]] && lArgs+=(--version="${1}")
  interactive || lArgs+=(--quiet)

  info "Installing ${toolName}"
  local checksum_expected="$(wget -q -O - https://composer.github.io/installer.sig)"
  exe wget -O 'composer-setup.php' 'https://getcomposer.org/installer'
  local checksum=($(sha384sum 'composer-setup.php'))

  if [ "${checksum_expected}" != "${checksum}" ]
  then
    error -e 'Invalid installer checksum'
    error -a "Sum: ${checksum}"
    error -a "Exp: ${checksum_expected}"
    exe rm composer-setup.php
    return 1
  fi

  exe php composer-setup.php "${lArgs[@]}"
  saveReturn $?
  exe rm composer-setup.php
  endReturn "Composer setup failed"
}

# shellcheck disable=SC2034 # Appears unused
readonly sqr_minVersion=16
# shellcheck disable=SC1091 # Don't follow this source
. /usr/local/bin/sequencer.sh