#!/bin/bash

# TODO: Currently only checks trunk_staging. Should check trunk_staging first,
#       then use the product-specfic releases. Only applies to -c though.

function Help() {
cat <<@EOF@
Usage: lunchable [options]

Lists products that have no functioning lunch combo.

options:
-c    prints all failing lunch combos for all targets;
-w    why? Prints the error message after each failed lunch combo. Only
      works with -c

@EOF@
}

complete=0
why=0
while getopts "cwh" option; do
  case $option in
    c)
      complete=1;;
    w)
      why=1;;
    h)
      Help
      exit;;
  esac
done

# Getting all named products can fail if we haven't lunched anything
source $(pwd)/build/envsetup.sh &> /dev/null
all_named_products=( $(get_build_var all_named_products 2> /dev/null) )
if [[ $? -ne 0 ]]; then
  echo "get_build_var all_named_products failed. Lunch something first?" >&2
  exit 1
fi
total_products=${#all_named_products[@]}
current_product=0

for product in "${all_named_products[@]}"; do
  (( current_product += 1 ))
  single_pass=0
  printf " Checking ${current_product}/${total_products} \r" >&2
  for release in trunk_staging; do
    for variant in eng user userdebug; do
      lunchcombo="${product}-${release}-${variant}"
      lunch_error="$(lunch $lunchcombo 2>&1 > /dev/null)"
      if [[ $? -ne 0 ]]; then
        # Lunch failed
        if [[ $complete -eq 1 ]]; then
          echo -e "${product} : ${lunchcombo}"
          if [[ $why -eq 1 ]]; then
            echo -e "$(sed 's/^/    /g' <<<$lunch_error)"
          fi
        fi
      elif [[ $complete -ne 1 ]]; then
        single_pass=1
        break # skip variant
      fi
    done
    if [[ $single_pass -eq 1 ]]; then
      break # skip release
    fi
  done
  if [[ $complete -eq 0 ]] && [[ $single_pass -eq 0 ]]; then
    echo "${product}"
  fi
done