#!/usr/bin/env bash
set -euo pipefail

# Discover compose files for docs tooling and CI without running containers.
ROOT="$(git rev-parse --show-toplevel 2>/dev/null || pwd)"
cd "$ROOT"

declare -a files=()

if [ -f services-up.sh ]; then
  # Parse literal FILES array entries in services-up.sh (e.g. default-network.yml).
  while IFS= read -r line; do
    path=$(sed -E 's#.*\$PROJECT_ROOT/([^" ]+).*#\1#' <<<"$line")
    [ -f "$path" ] && files+=("$path")
  done < <(awk '/^FILES=\(/,/^\)/ {print}' services-up.sh | grep -E '\-f[[:space:]]+"\$PROJECT_ROOT/')

  # Reuse the same compose roots used by services-up.sh to avoid archived compose files.
  if grep -q 'find "\$PROJECT_ROOT/apps" "\$PROJECT_ROOT/monitoring" "\$PROJECT_ROOT/core"' services-up.sh; then
    while IFS= read -r f; do files+=("$f"); done < <(
      find apps monitoring core -maxdepth 2 -type f \
        \( -name 'docker-compose.yml' -o -name 'docker-compose.yaml' -o -name 'compose.yml' -o -name 'compose.yaml' \) \
        | sed 's#^\./##' | sort
    )
  fi
fi

if [ "${#files[@]}" -eq 0 ]; then
  while IFS= read -r f; do files+=("$f"); done < <(
    find . -type f \
      \( -name 'docker-compose.yml' -o -name 'docker-compose.yaml' -o -name 'compose.yml' -o -name 'compose.yaml' \) \
      | sed 's#^\./##' | grep -v '^archive/' | sort
  )
fi

printf '%s\n' "${files[@]}" | awk 'NF' | awk '!seen[$0]++'