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

# === METADATA ===
SCRIPT_NAME="$(basename "$0")"
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
SKILL_ROOT="$(dirname "$(dirname "$SCRIPT_DIR")")"

# === CONFIGURATION ===
: "${OUTPUT_DIR:=$SKILL_ROOT/outputs}"

# === FUNCTIONS ===
log_info()  { echo "[INFO]  $(date -Iseconds) $*"; }
log_warn()  { echo "[WARN]  $(date -Iseconds) $*" >&2; }
log_error() { echo "[ERROR] $(date -Iseconds) $*" >&2; }
die()       { log_error "$@"; exit 1; }

main() {
    if [[ ! -d "$OUTPUT_DIR" ]]; then
        log_info "Output directory does not exist. Nothing to purge."
        exit 0
    fi

    local run_count=0
    if [[ -d "$OUTPUT_DIR/runs" ]]; then
        run_count=$(find "$OUTPUT_DIR/runs" -mindepth 1 -maxdepth 1 -type d | wc -l | tr -d ' ')
    fi

    log_warn "This will PERMANENTLY DELETE all backup outputs:"
    log_warn "  Directory: $OUTPUT_DIR"
    log_warn "  Backup runs: $run_count"
    log_warn ""
    log_warn "This action cannot be undone!"
    echo ""
    echo "Type 'PURGE ALL' to confirm:"
    read -r confirm
    [[ "$confirm" == "PURGE ALL" ]] || die "Aborted."

    # Clean up any restore drill temp directories
    if [[ -d "$OUTPUT_DIR/runs" ]]; then
        for run_dir in "$OUTPUT_DIR/runs"/*; do
            if [[ -f "$run_dir/last_restore_dir.txt" ]]; then
                local restore_dir
                restore_dir="$(cat "$run_dir/last_restore_dir.txt")"
                if [[ -d "$restore_dir" ]]; then
                    log_info "Removing restore temp: $restore_dir"
                    rm -rf "$restore_dir"
                fi
            fi
        done
    fi

    log_info "Purging outputs directory..."
    rm -rf "$OUTPUT_DIR"/*

    log_info "Purge complete."
}

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