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

# Validates that .xcstrings keys follow key-only convention:
#   lower_snake segments separated by dots
#   e.g. "settings.display.section_title"
#
# Usage:
#   scripts/validate-localization-keys.sh
#   scripts/validate-localization-keys.sh path/to/Localizable.xcstrings [...]

if ! command -v jq >/dev/null 2>&1; then
  echo "error: 'jq' is required but not installed." >&2
  exit 2
fi

repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"

if [[ $# -gt 0 ]]; then
  files=("$@")
else
  files=("$repo_root/TheNoiseClock/Localizable.xcstrings")
fi

key_regex='^[a-z0-9_]+(\.[a-z0-9_]+)+$'
had_error=0

for file in "${files[@]}"; do
  if [[ ! -f "$file" ]]; then
    echo "error: file not found: $file" >&2
    had_error=1
    continue
  fi

  invalid_keys="$(
    jq -r '.strings | keys[]' "$file" | rg -v "$key_regex" || true
  )"

  if [[ -n "$invalid_keys" ]]; then
    echo "error: invalid localization keys in $file" >&2
    echo "$invalid_keys" | sed 's/^/  - /' >&2
    had_error=1
  else
    echo "ok: $file"
  fi
done

if [[ $had_error -ne 0 ]]; then
  exit 1
fi