<?php

namespace Dashboard\Unifi\Http\Controllers;

use App\Models\Setting;
use Dashboard\Unifi\Services\UnifiApiClient;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Inertia\Inertia;

class UnifiSettingsController extends Controller
{
    public function edit(?string $tab = null)
    {
        return Inertia::render('Unifi/Settings', [
            'activeTab'              => $tab,
            'controllerUrl'          => Setting::get('unifi.controller_url', ''),
            'hasApiKey'              => (bool) Setting::get('unifi.api_key'),
            'site'                   => Setting::get('unifi.site', 'default'),
            'pollInterval'           => (int) Setting::get('unifi.poll_interval', 30),
            'cacheTtl'               => (int) Setting::get('unifi.cache_ttl', 30),
            'retentionDays'          => (int) Setting::get('unifi.retention_days', 30),
            'autoRebootEnabled'      => (bool) Setting::get('unifi.auto_reboot.enabled', false),
            'autoRebootFrequency'    => Setting::get('unifi.auto_reboot.frequency', 'daily'),
            'autoRebootDow'          => (int) Setting::get('unifi.auto_reboot.day_of_week', 0),
            'autoRebootHour'         => (int) Setting::get('unifi.auto_reboot.hour', 2),
            'autoRebootMinute'       => (int) Setting::get('unifi.auto_reboot.minute', 0),
            'rotationEnabled'        => (bool) Setting::get('unifi.password_rotation.enabled', false),
            'rotationFrequency'      => Setting::get('unifi.password_rotation.frequency', 'weekly'),
            'rotationDow'            => (int) Setting::get('unifi.password_rotation.day_of_week', 0),
            'rotationHour'           => (int) Setting::get('unifi.password_rotation.hour', 2),
            'rotationMinute'         => (int) Setting::get('unifi.password_rotation.minute', 0),
            'rotationWordlist'       => Setting::get('unifi.password_rotation.wordlist', ''),
            'rotationLastRotatedAt'   => Setting::get('unifi.password_rotation.last_rotated_at', null),
            'rotationLastPassword'    => Setting::get('unifi.password_rotation.last_password', null),
            'ppskSchedulingEnabled'   => (bool) Setting::get('unifi.ppsk_scheduling.enabled', false),
            'apiEnabled'              => (bool) Setting::get('unifi.api.enabled', false),
            'apiToken'                => Setting::get('unifi.api_token', null),
        ]);
    }

    public function regenerateApiToken()
    {
        $token = bin2hex(random_bytes(24));
        Setting::set('unifi.api_token', $token);
        return response()->json(['token' => $token]);
    }

    public function clearApiToken()
    {
        Setting::set('unifi.api_token', '');
        return response()->json(['ok' => true]);
    }

    public function update(Request $request)
    {
        $request->validate([
            'controller_url'        => 'required|url|max:500',
            'api_key'               => 'nullable|string|max:500',
            'site'                  => 'required|string|max:100',
            'poll_interval'         => 'nullable|integer|min:5|max:300',
            'cache_ttl'             => 'nullable|integer|min:5|max:300',
            'retention_days'        => 'nullable|integer|min:1|max:365',
            'auto_reboot_enabled'   => 'boolean',
            'auto_reboot_frequency' => 'in:daily,weekly',
            'auto_reboot_dow'       => 'nullable|integer|min:0|max:6',
            'auto_reboot_hour'      => 'nullable|integer|min:0|max:23',
            'auto_reboot_minute'    => 'nullable|integer|min:0|max:59',
            'rotation_enabled'      => 'boolean',
            'rotation_frequency'    => 'in:daily,weekly',
            'rotation_dow'          => 'nullable|integer|min:0|max:6',
            'rotation_hour'         => 'nullable|integer|min:0|max:23',
            'rotation_minute'       => 'nullable|integer|min:0|max:59',
            'rotation_wordlist'       => 'nullable|string|max:20000',
            'ppsk_scheduling_enabled' => 'boolean',
            'api_enabled'             => 'boolean',
        ]);

        Setting::set('unifi.controller_url', rtrim($request->controller_url, '/'));
        Setting::set('unifi.site', $request->site);

        if ($request->api_key && $request->api_key !== '••••••••') {
            Setting::set('unifi.api_key', $request->api_key);
        }

        if ($request->has('poll_interval'))  Setting::set('unifi.poll_interval', $request->poll_interval ?? 30);
        if ($request->has('cache_ttl'))      Setting::set('unifi.cache_ttl', $request->cache_ttl ?? 30);
        if ($request->has('retention_days')) Setting::set('unifi.retention_days', $request->retention_days ?? 30);

        Setting::set('unifi.auto_reboot.enabled',    $request->boolean('auto_reboot_enabled') ? '1' : '');
        Setting::set('unifi.auto_reboot.frequency',  $request->input('auto_reboot_frequency', 'daily'));
        Setting::set('unifi.auto_reboot.day_of_week',$request->input('auto_reboot_dow', 0));
        Setting::set('unifi.auto_reboot.hour',       $request->input('auto_reboot_hour', 2));
        Setting::set('unifi.auto_reboot.minute',     $request->input('auto_reboot_minute', 0));

        Setting::set('unifi.password_rotation.enabled',     $request->boolean('rotation_enabled') ? '1' : '');
        Setting::set('unifi.password_rotation.frequency',   $request->input('rotation_frequency', 'weekly'));
        Setting::set('unifi.password_rotation.day_of_week', $request->input('rotation_dow', 0));
        Setting::set('unifi.password_rotation.hour',        $request->input('rotation_hour', 2));
        Setting::set('unifi.password_rotation.minute',      $request->input('rotation_minute', 0));
        Setting::set('unifi.password_rotation.wordlist',    $request->input('rotation_wordlist', ''));
        Setting::set('unifi.ppsk_scheduling.enabled',        $request->boolean('ppsk_scheduling_enabled') ? '1' : '');
        Setting::set('unifi.api.enabled',                    $request->boolean('api_enabled')             ? '1' : '');

        \Illuminate\Support\Facades\Cache::forget('unifi:api_prefix:' . md5(rtrim($request->controller_url, '/')));

        return back()->with('success', 'UniFi settings saved.');
    }

    public function testConnection(UnifiApiClient $unifi)
    {
        try {
            $info = $unifi->testConnection();
            $version = $info[0]['version'] ?? 'unknown';
            return response()->json(['ok' => true, 'version' => $version]);
        } catch (\Throwable $e) {
            return response()->json(['ok' => false, 'error' => $e->getMessage()], 422);
        }
    }

    public function fetchSites(Request $request, UnifiApiClient $unifi)
    {
        $request->validate([
            'controller_url' => 'required|url',
        ]);

        $url  = rtrim($request->controller_url, '/');
        $user = $request->input('username', '');
        $pass = $request->input('password', '');
        $key  = $request->input('api_key', '');

        // Use saved credentials if placeholders sent
        if ($pass === '••••••••') $pass = Setting::get('unifi.password', '');
        if ($key === '••••••••')  $key  = Setting::get('unifi.api_key', '');

        try {
            $sites = $unifi->getSites($url, $user ?: null, $pass ?: null, $key ?: null);
            return response()->json([
                'ok'    => true,
                'sites' => collect($sites)->map(fn ($s) => [
                    'name' => $s['name'] ?? 'default',
                    'desc' => $s['desc'] ?? $s['name'] ?? 'Default',
                ])->values(),
            ]);
        } catch (\Throwable $e) {
            $hint = "Tried URL: {$url}. ";
            if (str_contains($url, 'unifi.ui.com')) {
                $hint .= "Use your console's direct URL (*.id.ui.direct or local IP) instead of unifi.ui.com.";
            } elseif (! $key) {
                $hint .= "Enter an API key above.";
            } else {
                $hint .= "Check that the API key is correct and the controller URL is reachable.";
            }

            return response()->json(['ok' => false, 'error' => $e->getMessage(), 'hint' => $hint], 422);
        }
    }
}