#!/usr/bin/env bash
# ssr-status — print current state, or a detailed restore/backup report.
#
# Usage:
#   ssr status             General status (cloud, last sync, schedule)
#   ssr status restore     Detailed report of the last restore run
#   ssr status backup      Summary of the last backup (sync) run

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 "$SSR_ROOT/lib/cloud.sh"
# shellcheck source=../lib/restore-state.sh
source "$SSR_ROOT/lib/restore-state.sh"

ssr::load_config

# ---------------------------------------------------------------------------
# Sub-command dispatch
# ---------------------------------------------------------------------------
case "${1:-}" in
    restore)
        ssr::rs::report
        exit 0
        ;;
    backup|sync)
        _status_backup
        exit 0
        ;;
    ""|general)
        # fall through to general status below
        ;;
    *)
        printf 'Usage: ssr status [restore|backup]\n'
        exit 1
        ;;
esac

# ---------------------------------------------------------------------------
# General status
# ---------------------------------------------------------------------------
_status_general() {
    local cfg provider cloud_dir backup_dir state_dir label service_target

    cfg="${SSR_CONFIG:-$HOME/.config/ssr/ssr.conf}"
    provider="${SSR_CLOUD_PROVIDER:-icloud}"
    state_dir="${SSR_STATE_DIR:-$HOME/.local/state/ssr}"

    printf 'ssr status\n'
    printf '  repo:       %s\n' "$SSR_ROOT"
    printf '  config:     %s %s\n' "$cfg" "$([[ -f "$cfg" ]] && echo '(present)' || echo '(missing)')"
    printf '  provider:   %s\n' "$provider"

    if cloud_dir="$(ssr::cloud::resolve_dir 2>/dev/null)"; then
        printf '  cloud dir:  %s %s\n' "$cloud_dir" \
            "$([[ -d "$cloud_dir" ]] && echo '(ok)' || echo '(unreachable)')"
        printf '  backup dir: %s\n' "$(ssr::cloud::backup_dir 2>/dev/null || echo 'n/a')"
    fi

    if [[ -f "$state_dir/last-sync" ]]; then
        printf '  last sync:  %s\n' "$(cat "$state_dir/last-sync")"
    else
        printf '  last sync:  never\n'
    fi

    # Unmanaged apps + pref snapshot from last sync.
    if backup_dir="$(ssr::cloud::backup_dir 2>/dev/null)"; then
        if [[ -f "$backup_dir/unmanaged-apps.md" ]]; then
            local n
            n="$(grep -cE '^\| \[' "$backup_dir/unmanaged-apps.md" 2>/dev/null || echo 0)"
            printf '  unmanaged:  %s app(s) → %s\n' "$n" "$backup_dir/unmanaged-apps.md"
        fi
        if [[ -d "$backup_dir/macos-prefs" ]]; then
            local n
            n="$(find "$backup_dir/macos-prefs" -name '*.plist' 2>/dev/null | wc -l | tr -d ' ')"
            printf '  prefs snap: %s domain(s) → %s/macos-prefs/\n' "$n" "$backup_dir"
        fi
    fi

    # Last restore summary (one line).
    local rs_state; rs_state="$(_ssr_rs_state_file)"
    if [[ -f "$rs_state" ]]; then
        local rs_started rs_finished rs_warns
        rs_started="$(grep '^started='  "$rs_state" | cut -d= -f2-)"
        rs_finished="$(grep '^finished=' "$rs_state" | cut -d= -f2-)"
        rs_warns="$(grep -cE '^step_[^=]+=(warn|fail)' "$rs_state" 2>/dev/null || echo 0)"
        printf '  last restore: %s' "${rs_started:-(unknown)}"
        [[ -n "$rs_finished" ]] && printf ' → %s' "$rs_finished"
        [[ "$rs_warns" -gt 0 ]] && printf ' (%s warning(s))' "$rs_warns" \
            || printf ' (ok)'
        printf '\n'
        printf '  (run "ssr status restore" for full report)\n'
    fi

    # Schedule.
    label="${SSR_LAUNCHD_LABEL:-de.surke.ssr.sync}"
    service_target="gui/$(id -u)/${label}"
    if launchctl print "$service_target" >/dev/null 2>&1 \
       || launchctl list "$label"        >/dev/null 2>&1; then
        printf '  schedule:   active (%s)\n' "$label"
    else
        printf '  schedule:   inactive\n'
    fi
}

# ---------------------------------------------------------------------------
# Backup / sync report
# ---------------------------------------------------------------------------
_status_backup() {
    local state_dir backup_dir
    state_dir="${SSR_STATE_DIR:-$HOME/.local/state/ssr}"

    printf '\n%s\n' "── Backup (Sync) Report ────────────────────────"

    if [[ -f "$state_dir/last-sync" ]]; then
        printf '  last sync : %s\n' "$(cat "$state_dir/last-sync")"
    else
        printf '  last sync : never\n'
    fi

    if backup_dir="$(ssr::cloud::backup_dir 2>/dev/null)" && [[ -d "$backup_dir" ]]; then
        printf '  backup dir: %s\n' "$backup_dir"

        if [[ -f "$backup_dir/Brewfile" ]]; then
            local lines
            lines="$(wc -l < "$backup_dir/Brewfile" | tr -d ' ')"
            local mtime
            mtime="$(date -r "$backup_dir/Brewfile" '+%Y-%m-%dT%H:%M:%S%z' 2>/dev/null || echo '?')"
            printf '  Brewfile  : %s lines, modified %s\n' "$lines" "$mtime"
        else
            printf '  Brewfile  : not found\n'
        fi

        if [[ -f "$backup_dir/unmanaged-apps.md" ]]; then
            local n
            n="$(grep -cE '^\| \[' "$backup_dir/unmanaged-apps.md" 2>/dev/null || echo 0)"
            printf '  unmanaged : %s app(s) → %s\n' "$n" "$backup_dir/unmanaged-apps.md"
        fi

        if [[ -d "$backup_dir/macos-prefs" ]]; then
            local n
            n="$(find "$backup_dir/macos-prefs" -name '*.plist' 2>/dev/null | wc -l | tr -d ' ')"
            printf '  prefs snap: %s domain(s)\n' "$n"
        fi
    else
        printf '  (backup directory not accessible)\n'
    fi

    printf '%s\n\n' "────────────────────────────────────────────────"
}

_status_general