#!/usr/bin/env bash
# Guards the one mistake this layout invites: a distro added under distros/ but left
# out of a .woodpecker matrix, so it silently never gets built.
set -uo pipefail

REQUIRED_KEYS="BASE_IMAGE_NAME IMAGE TAG_SUFFIX DEFAULT PACKAGES GO_MIN"
WORKFLOWS=".woodpecker/build.yaml .woodpecker/test.yaml .woodpecker/docker.yaml"

fail=0
for d in distros/*/; do
  n=${d#distros/}; n=${n%/}
  for k in $REQUIRED_KEYS; do
    grep -q "^${k}=" "${d}distro.env" || { echo "${d}distro.env: missing ${k}"; fail=1; }
  done
  for wf in $WORKFLOWS; do
    grep -q "DISTRO: ${n}\$" "$wf" || { echo "${wf}: distro ${n} missing from matrix"; fail=1; }
  done
done

# Exactly one distro owns the unsuffixed :<version> and :latest tags.
n=$(grep -l 'DEFAULT="true"' distros/*/distro.env | wc -l)
[ "$n" -eq 1 ] || { echo "expected exactly one distro with DEFAULT=\"true\", found ${n}"; fail=1; }

for s in ./*.sh; do bash -n "$s" || fail=1; done

[ "$fail" -eq 0 ] || { echo "FAILED"; exit 1; }
echo "PASS"