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

# =============================================================================
# phase6_teardown.sh — Remove push mirror config from all repos
# For each repo: fetches mirror ID from Gitea, then deletes it.
# Re-enables GitHub Actions on the source repos.
# Safe to run if mirrors have already been removed.
# =============================================================================

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
source "${SCRIPT_DIR}/lib/common.sh"

# Parse arguments
AUTO_YES=false
for arg in "$@"; do
  case "$arg" in
    --yes|-y) AUTO_YES=true ;;
    --help|-h)
      cat <<EOF
Usage: $(basename "$0") [options]

Options:
  --yes, -y    Skip all confirmation prompts
  --help, -h   Show this help
EOF
      exit 0
      ;;
    *)
      log_error "Unknown argument: $arg"
      exit 1
      ;;
  esac
done

confirm_action() {
  local prompt="$1"
  if [[ "$AUTO_YES" == "true" ]]; then
    log_info "Auto-confirmed (--yes): ${prompt}"
    return 0
  fi
  printf '%s' "$prompt"
  read -r confirm
  [[ "$confirm" =~ ^[Yy]$ ]]
}

load_env
require_vars GITEA_ADMIN_TOKEN GITEA_INTERNAL_URL GITEA_ORG_NAME \
             GITHUB_USERNAME GITHUB_TOKEN \
             REPO_NAMES

log_warn "=== Phase 6 Teardown: Push Mirrors ==="

read -ra REPOS <<< "$REPO_NAMES"

if ! confirm_action 'This will remove all push mirror configurations. Continue? [y/N] '; then
  log_info "Teardown cancelled"
  exit 0
fi

for repo in "${REPOS[@]}"; do
  log_info "--- Processing: ${repo} ---"

  # Get push mirror IDs (there could be multiple, delete all)
  MIRRORS=$(gitea_api GET "/repos/${GITEA_ORG_NAME}/${repo}/push_mirrors" 2>/dev/null || echo "[]")
  MIRROR_IDS=$(printf '%s' "$MIRRORS" | jq -r '.[].id' 2>/dev/null || true)

  if [[ -z "$MIRROR_IDS" ]]; then
    log_info "No push mirrors found for ${repo} — already clean"
  else
    for mirror_id in $MIRROR_IDS; do
      gitea_api DELETE "/repos/${GITEA_ORG_NAME}/${repo}/push_mirrors/${mirror_id}" >/dev/null 2>&1 || true
      log_success "Removed push mirror '${mirror_id}' from ${repo}"
    done
  fi

  # Re-enable GitHub Actions
  github_api PUT "/repos/${GITHUB_USERNAME}/${repo}/actions/permissions" \
    '{"enabled": true}' >/dev/null 2>&1 || true
  log_info "GitHub Actions re-enabled for ${repo}"
done

log_success "Phase 6 teardown complete"