#!/bin/bash

set -e

build_directory="/build"

function initializeSourceTree() {
  manifest="$1"
  branch="$2"
  repo init -u "$manifest" -b "$branch"
}

function repoSync() {
  repo sync
}

function getPrebuilts() {
  cd "$build_directory"
  gpg \
    --keyserver pool.sks-keyservers.net \
    --recv-key 7A029E54DD5DCE7A
  ./vendor/replicant/get-prebuilts
}

function buildToolchain() {
  cd "$build_directory"
  ./vendor/replicant/build-toolchain
}

function loadBuildVars() {
  source "$build_directory"/build/envsetup.sh
}

function lunchDevice() {
  device="$1"
  mode="$2"
  lunch replicant_"$device"-"${mode:-userdebug}"
}

function buildPackage() {
  device="$1"
  mode="$2"
  loadBuildVars
  lunchDevice "$device" "$mode"
  getPrebuilts
  cd "$build_directory"
  make -j ${threads:-4} bacon
}

function partialBuildPackage() {
  device="$2"
  sub_project="$3"
  cd "$build_directory"/"$sub_project"
  mm -B
  make -j ${threads:-4} snod
}

function cleanBuild() {
  cd "$build_directory"
  loadBuildVars
  make clean
}

cd "$build_directory"

if [ $# -eq 0 ]; then
  echo -e "No parameter specified."
  exit 1
else
  while [ $# -ne 0 ]; do
    case $1 in

      -j | --threads )
	threads="$2"
	shift
      ;;

      -i | --initialize )
	manifest="$2"
	branch="$3"
	initializeSourceTree "$manifest" "$branch"
	shift
	shift
      ;;

      -p | --pull )
	repoSync
      ;;

      -t | --build-toolchain )
	buildToolchain
      ;;

      -b | --build )
	device="$2"
	buildPackage "$device"
	shift
      ;;

      -B | --partial )
	device="$2"
	sub_project="$3"
	partialBuildPackage "$device" "$sub_project"
	shift
      ;;

      -c | --clean )
	cleanBuild
      ;;

    esac
    shift
  done
fi