#!/usr/bin/env bash
# lib/mackup.sh — Mackup install + backup/restore.
# Note: upstream mackup is in low-maintenance mode; we keep it because it
# remains the simplest way to sync dotfiles for a wide range of apps. The
# user can swap engines via ~/.mackup.cfg without changing this script.

ssr::mackup::ensure_installed() {
    if command -v mackup >/dev/null 2>&1; then
        return 0
    fi
    ssr::log "Installing mackup via brew"
    brew install mackup
}

# Writes ~/.mackup.cfg pointing the engine at the cloud directory.
# Idempotent: rewrites only if content differs.
ssr::mackup::configure() {
    local mackup_dir="$1"
    local cfg="$HOME/.mackup.cfg"
    local desired
    desired="$(printf '[storage]\nengine = file_system\npath = %s\ndirectory = mackup\n' "$mackup_dir")"

    if [[ -f "$cfg" ]] && [[ "$(cat "$cfg")" == "$desired" ]]; then
        return 0
    fi

    if [[ -L "$cfg" || -f "$cfg" ]]; then
        cp -f "$cfg" "$cfg.bak.$(date +%s)" 2>/dev/null || true
        rm -f "$cfg"
    fi
    printf '%s\n' "$desired" > "$cfg"
    ssr::ok "Wrote $cfg"
}

ssr::mackup::backup() {
    ssr::log "mackup backup"
    mackup -f backup
}

ssr::mackup::restore() {
    ssr::log "mackup restore"
    mackup restore
}