#!/usr/bin/env bash
# borg-browser.sh — fzf-based Borg archive browser with passphrase prompt

[ "$EUID" -ne 0 ] && { echo "Please run as root."; exec sudo "$0" "$@"; }

REPO="/holocron/backups"

# Prompt once for Borg passphrase
read -rs -p "Borg passphrase: " BORG_PASSPHRASE
echo
export BORG_PASSPHRASE

# Pick an archive
ARCHIVE=$(borg list --short "$REPO" | fzf --prompt="Select archive: ") || {
    unset BORG_PASSPHRASE
    exit
}
[ -z "$ARCHIVE" ] && { unset BORG_PASSPHRASE; exit; }

# Function to browse directories hierarchically
browse_borg_dir() {
    local prefix="$1"

    while true; do
        # Get immediate children of the current path
        ITEMS=$(borg list --format='{path}{NL}' "$REPO::$ARCHIVE" \
            | awk -v p="$prefix" -F/ '
                BEGIN{n=split(p,a,"/")}
                index($0,p)==1 && NF>n {
                    if (NF==n+1) print $NF;
                    else print $(n+1)"/";
                }' \
            | sort -u)

        [ -z "$ITEMS" ] && { echo "No items found in $prefix"; return; }

        SELECTION=$(echo -e "../\n$ITEMS" | fzf --prompt="${prefix:-/}> ")
        case "$SELECTION" in
            "../")
                prefix="${prefix%/*}"
                prefix="${prefix%/}"
                ;;
            "")
                return
                ;;
            */)
                prefix="${prefix:+$prefix/}${SELECTION%/}"
                ;;
            *)
                local fullpath="${prefix:+$prefix/}$SELECTION"
                echo "Selected file: $fullpath"
                read -rp "Extract it here? [y/N]: " yn
                if [[ $yn =~ ^[Yy]$ ]]; then
                    borg extract "$REPO::$ARCHIVE" "$fullpath"
                fi
                return
                ;;
        esac
    done
}

browse_borg_dir ""
unset BORG_PASSPHRASE