#!/usr/bin/env bash
# ssr-sync — back up Homebrew + Mackup state to the configured cloud dir.

set -euo pipefail
SSR_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
# shellcheck source=../lib/common.sh
source "$SSR_ROOT/lib/common.sh"
# shellcheck source=../lib/cloud.sh
source "$SSR_ROOT/lib/cloud.sh"
# shellcheck source=../lib/brew.sh
source "$SSR_ROOT/lib/brew.sh"
# shellcheck source=../lib/mackup.sh
source "$SSR_ROOT/lib/mackup.sh"
# shellcheck source=../lib/apps.sh
source "$SSR_ROOT/lib/apps.sh"
# shellcheck source=../lib/macos-prefs.sh
source "$SSR_ROOT/lib/macos-prefs.sh"
# shellcheck source=../lib/icloud.sh
source "$SSR_ROOT/lib/icloud.sh"
# shellcheck source=../lib/installers.sh
source "$SSR_ROOT/lib/installers.sh"

ssr::require_macos
ssr::load_config

ssr::log "ssr sync starting"
ssr::syslog "sync starting"

ssr::cloud::ensure_available
backup_dir="$(ssr::cloud::backup_dir)"
mackup_dir="$(ssr::cloud::mackup_dir)"
ssr::ensure_dir "$backup_dir"
ssr::ensure_dir "$mackup_dir"

# Kick off async iCloud download for the Mackup folder immediately so that
# files have maximum time to download while brew update/upgrade runs.
# ssr::icloud::wait is called just before mackup backup below.
ssr::icloud::prefetch "$mackup_dir"

ssr::brew::ensure_installed
ssr::mackup::ensure_installed
ssr::mackup::configure "$mackup_dir"

ssr::brew::update
ssr::brew::upgrade

# Wait for iCloud downloads triggered above before handing off to mackup.
# Timeout (seconds) is configurable; default 180s.
ssr::icloud::wait "$mackup_dir" "${SSR_ICLOUD_WAIT_TIMEOUT:-180}"

# Auto-generate ~/.mackup/ssr-custom.cfg for dot-dirs not yet covered by
# Mackup's built-in definitions (e.g. .claude, .cursor, .easymcp, …).
if [[ "${SSR_MACKUP_AUTODISCOVER:-true}" == "true" ]]; then
    ssr::mackup::generate_custom_cfg "$mackup_dir"
fi

ssr::mackup::backup
ssr::brew::dump "$backup_dir"
ssr::brew::cleanup

# Back up the extra-installers list alongside the Brewfile.
ssr::installers::sync_list "$backup_dir"

# Surface .app bundles that aren't covered by brew cask or the App Store —
# they would otherwise be missed on `ssr restore` and need manual reinstall.
if [[ "${SSR_SCAN_UNMANAGED_APPS:-true}" == "true" ]]; then
    ssr::log "Scanning for unmanaged .app bundles"
    report_path="$(ssr::apps::write_report "$backup_dir")"
    # Each row in the Markdown table starts with `| [`; count those.
    count="$(grep -cE '^\| \[' "$report_path" 2>/dev/null || echo 0)"
    if [[ "$count" -gt 0 ]]; then
        ssr::warn "Found $count unmanaged app(s) — manual reinstall on restore:"
        # Extract the linked app name from each table row for a quick console summary.
        grep -E '^\| \[' "$report_path" \
            | sed -E 's/^\| \[([^]]+)\].*/  - \1/'
        ssr::log "Full report: $report_path"
    else
        ssr::ok "No unmanaged apps detected."
    fi
fi

# Snapshot macOS preference domains so they can be restored on a new machine.
if [[ "${SSR_SNAPSHOT_MACOS_PREFS:-true}" == "true" ]]; then
    ssr::log "Snapshotting macOS preferences"
    ssr::macos::prefs_export "$backup_dir"
fi

# Record sync time so `ssr status` can report freshness.
state_dir="${SSR_STATE_DIR:-$HOME/.local/state/ssr}"
ssr::ensure_dir "$state_dir"
date '+%Y-%m-%dT%H:%M:%S%z' > "$state_dir/last-sync"

# Mark Mackup folder files as keep-local so iCloud doesn't evict them
# before the next sync run, avoiding slow on-demand downloads next time.
if [[ "${SSR_ICLOUD_KEEP_LOCAL:-true}" == "true" ]]; then
    ssr::icloud::keep_local "$mackup_dir"
fi

ssr::ok "ssr sync completed → $backup_dir"
ssr::syslog "sync completed"