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

# === METADATA ===
SCRIPT_NAME="$(basename "$0")"

# === CONFIGURATION ===
: "${GITOPS_ROOT:=$HOME/infrastructure}"

# === FUNCTIONS ===
log_info()  { echo "[INFO]  $(date -Iseconds) $*"; }
log_warn()  { echo "[WARN]  $(date -Iseconds) $*" >&2; }

main() {
    log_info "Starting $SCRIPT_NAME - ROLLBACK GitOps..."

    # Expand ~
    GITOPS_ROOT="${GITOPS_ROOT/#\~/$HOME}"

    echo ""
    echo "============================================"
    echo "  GITOPS ROLLBACK"
    echo "  Root: $GITOPS_ROOT"
    echo "============================================"
    echo ""

    # Check what exists
    local repos_found=0
    for repo in config secrets manifests; do
        if [[ -d "$GITOPS_ROOT/${repo}.git" ]]; then
            echo "  Found: ${repo}.git"
            ((repos_found++))
        fi
    done

    if [[ $repos_found -eq 0 ]]; then
        log_info "No GitOps repositories found - nothing to rollback"
        exit 0
    fi

    echo ""
    echo "This will ARCHIVE (not delete) the repositories to:"
    echo "  $GITOPS_ROOT/archived-$(date +%Y%m%d%H%M%S)/"
    echo ""

    read -p "Type 'CONFIRM' to proceed: " confirm

    if [[ "$confirm" != "CONFIRM" ]]; then
        log_info "Aborted - no changes made"
        exit 0
    fi

    # Create archive directory
    local archive_dir="$GITOPS_ROOT/archived-$(date +%Y%m%d%H%M%S)"
    mkdir -p "$archive_dir"

    # Move repositories to archive
    for repo in config secrets manifests; do
        if [[ -d "$GITOPS_ROOT/${repo}.git" ]]; then
            mv "$GITOPS_ROOT/${repo}.git" "$archive_dir/"
            log_info "Archived: ${repo}.git -> $archive_dir/"
        fi
    done

    echo ""
    echo "============================================"
    echo "  GITOPS ROLLBACK COMPLETE"
    echo "============================================"
    echo ""
    echo "Repositories archived to: $archive_dir"
    echo ""
    echo "To permanently delete:"
    echo "  rm -rf $archive_dir"
    echo ""
    echo "To restore:"
    echo "  mv $archive_dir/*.git $GITOPS_ROOT/"
    echo ""

    log_info "Completed $SCRIPT_NAME"
}

[[ "${BASH_SOURCE[0]}" == "$0" ]] && main "$@"