#!/usr/bin/env bash
# Shared functions for retention-cleanup.sh
# Can be sourced by tests for unit testing

age_days_from_stat() {
  local dir="$1" epoch_dir now
  epoch_dir=$(stat -c %Y "$dir" 2>/dev/null || stat -f %m "$dir" 2>/dev/null || echo 0)
  [ "$epoch_dir" -eq 0 ] && echo 99999 && return
  now=$(date +%s)
  echo $(( (now - epoch_dir) / 86400 ))
}

read_rule() {
  local config="$1" branch="$2" key="$3" default="$4"
  v=$(jq -r --arg b "$branch" --arg k "$key" '.branches[$b][$k] // empty' "$config")
  [ -n "$v" ] && echo "$v" || echo "$default"
}

branch_exists() {
  local owner="$1" repo="$2" branch="$3"
  local branch_urlenc code

  [ -z "$GITEA_API_URL" ] && return 0
  [ -z "$GITEA_TOKEN" ] && return 0

  branch_urlenc=$(echo "$branch" | sed 's/\//%2F/g')
  code=$(curl -s -o /dev/null -w "%{http_code}" \
    -H "Authorization: token $GITEA_TOKEN" \
    "$GITEA_API_URL/api/v1/repos/$owner/$repo/branches/$branch_urlenc" 2>/dev/null || echo "000")

  [ "$code" = "200" ]
}