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

# =============================================================================
# phase4_teardown.sh — Delete migrated repos from primary + mirrors from Fedora
# Destructive: permanently deletes repositories.
# Prompts for confirmation before each deletion.
# Safe to run if repos have already been deleted (no errors).
# =============================================================================

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_BACKUP_ADMIN_TOKEN \
             GITEA_INTERNAL_URL GITEA_BACKUP_INTERNAL_URL \
             GITEA_ORG_NAME GITEA_ADMIN_USER \
             REPO_NAMES

log_warn "=== Phase 4 Teardown: Repos + Mirrors ==="

read -ra REPOS <<< "$REPO_NAMES"

if ! confirm_action 'This will DELETE all migrated repos and mirrors. Continue? [y/N] '; then
  log_info "Teardown cancelled"
  exit 0
fi

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

  # Delete repo from primary (under org)
  if gitea_api GET "/repos/${GITEA_ORG_NAME}/${repo}" >/dev/null 2>&1; then
    gitea_api DELETE "/repos/${GITEA_ORG_NAME}/${repo}" >/dev/null || true
    log_success "Deleted ${GITEA_ORG_NAME}/${repo} from primary"
  else
    log_info "Repo ${GITEA_ORG_NAME}/${repo} not found on primary — already deleted"
  fi

  # Delete mirror from Fedora (under admin user)
  if gitea_backup_api GET "/repos/${GITEA_ADMIN_USER}/${repo}" >/dev/null 2>&1; then
    gitea_backup_api DELETE "/repos/${GITEA_ADMIN_USER}/${repo}" >/dev/null || true
    log_success "Deleted mirror ${GITEA_ADMIN_USER}/${repo} from Fedora"
  else
    log_info "Mirror ${GITEA_ADMIN_USER}/${repo} not found on Fedora — already deleted"
  fi
done

log_success "Phase 4 teardown complete"