<?php

namespace App\Http\Controllers;

use App\Services\DatabaseConnectionManager;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\View\View;
use InvalidArgumentException;
use Throwable;

class DatabaseController extends Controller
{
    public function __construct(
        private readonly DatabaseConnectionManager $connections
    ) {
    }

    public function index(Request $request): View
    {
        $sort = $request->string('sort', 'created')->toString();
        $dir = $request->string('dir', 'desc')->toString();
        $search = $request->string('q')->trim()->toString();
        $connectionId = $request->integer('connection') ?: null;

        $allowedSort = ['db_name', 'created', 'active_days', 'state', 'last_index_activity', 'last_backup'];
        if (! in_array($sort, $allowedSort, true)) {
            $sort = 'created';
        }
        $dir = $dir === 'asc' ? 'asc' : 'desc';

        $lister = $this->connections->listerFor($connectionId);
        $result = $lister->listDatabases($sort, $dir, $search);

        $activeConnection = $connectionId
            ? $this->connections->find($connectionId)
            : ($this->connections->allActive()[0] ?? null);

        return view('databases.index', [
            'databases' => $result['rows'],
            'meta' => $result['meta'],
            'sort' => $sort,
            'dir' => $dir,
            'search' => $search,
            'error' => $result['error'] ?? null,
            'connections' => $this->connections->allActive(),
            'activeConnection' => $activeConnection,
            'supportsOffline' => $lister->supportsOffline(),
        ]);
    }

    public function offline(Request $request, string $database): RedirectResponse
    {
        $request->validate([
            'confirm' => ['required', 'accepted'],
            'connection' => ['nullable', 'integer'],
        ]);

        $connectionId = $request->integer('connection') ?: null;

        try {
            $lister = $this->connections->listerFor($connectionId);

            if (! $lister->supportsOffline()) {
                throw new InvalidArgumentException('Offline action is not supported for this database type.');
            }

            $lister->makeOffline($database);

            $request->attributes->set('audit_metadata', [
                'database' => $database,
                'connection_id' => $connectionId,
            ]);

            return redirect()
                ->route('databases.index', $request->only(['sort', 'dir', 'q', 'connection']))
                ->with('success', "Database [{$database}] is now restricted/offline.");
        } catch (InvalidArgumentException $e) {
            return redirect()
                ->route('databases.index', $request->only(['sort', 'dir', 'q', 'connection']))
                ->with('error', $e->getMessage());
        } catch (Throwable) {
            return redirect()
                ->route('databases.index', $request->only(['sort', 'dir', 'q', 'connection']))
                ->with('error', 'Failed to restrict database.');
        }
    }
}