<?php

namespace App\Http\Controllers;

use App\Models\User;
use Spatie\Permission\Models\Role;
use Spatie\Activitylog\Models\Activity;
use Illuminate\Http\Request;

class GlobalSearchController extends Controller
{
    public function __invoke(Request $request)
    {
        $query = $request->input('query');
        
        if (empty($query)) {
            return response()->json([]);
        }

        $results = [];

        // Search Users
        $users = User::where('first_name', 'like', "%{$query}%")
            ->orWhere('last_name', 'like', "%{$query}%")
            ->orWhere('email', 'like', "%{$query}%")
            ->limit(5)
            ->get()
            ->map(fn($u) => [
                'type' => 'User',
                'title' => "{$u->first_name} {$u->last_name}",
                'subtitle' => $u->email,
                'url' => route('users.show', $u->id),
                'icon' => 'user'
            ]);
        $results = array_merge($results, $users->toArray());

        // Search Roles
        $roles = Role::where('name', 'like', "%{$query}%")
            ->limit(3)
            ->get()
            ->map(fn($r) => [
                'type' => 'Role',
                'title' => $r->name,
                'subtitle' => "{$r->permissions()->count()} permissions",
                'url' => route('roles.index'),
                'icon' => 'shield'
            ]);
        $results = array_merge($results, $roles->toArray());

        // Search Activity Logs
        $logs = Activity::where('description', 'like', "%{$query}%")
            ->orWhere('log_name', 'like', "%{$query}%")
            ->latest()
            ->limit(5)
            ->get()
            ->map(fn($l) => [
                'type' => 'Log',
                'title' => $l->description,
                'subtitle' => $l->created_at->diffForHumans(),
                'url' => route('activity-logs.index'),
                'icon' => 'clock'
            ]);
        $results = array_merge($results, $logs->toArray());

        // Search Navigation Pages
        $pages = [
            ['title' => 'Dashboard', 'url' => route('dashboard'), 'icon' => 'clock', 'keywords' => ['home', 'index', 'dashboard']],
            ['title' => 'User Management', 'url' => route('users.index'), 'icon' => 'user', 'keywords' => ['users', 'people', 'staff', 'accounts']],
            ['title' => 'Role Management', 'url' => route('roles.index'), 'icon' => 'shield', 'keywords' => ['roles', 'permissions', 'access', 'security']],
            ['title' => 'Activity Logs', 'url' => route('activity-logs.index'), 'icon' => 'clock', 'keywords' => ['logs', 'audit', 'history', 'events']],
            ['title' => 'System Settings', 'url' => route('system.settings.index'), 'icon' => 'shield', 'keywords' => ['settings', 'config', 'setup', 'system']],
            ['title' => 'Profile Settings', 'url' => route('profile.edit'), 'icon' => 'user', 'keywords' => ['profile', 'me', 'account', 'password']],
        ];

        $matchedPages = array_filter($pages, function($page) use ($query) {
            $q = strtolower($query);
            if (str_contains(strtolower($page['title']), $q)) return true;
            foreach ($page['keywords'] as $keyword) {
                if (str_contains($keyword, $q)) return true;
            }
            return false;
        });

        foreach ($matchedPages as $page) {
            $results[] = [
                'type' => 'Page',
                'title' => $page['title'],
                'subtitle' => 'System Navigation',
                'url' => $page['url'],
                'icon' => $page['icon']
            ];
        }

        return response()->json($results);
    }
}