<?php

namespace App\Http\Controllers;

use App\Enums\InstallationStatus;
use App\Models\ApplicationInstallation;
use App\Models\User;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Hash;
use Illuminate\View\View;

class InstallController extends Controller
{
    public function create(Request $request): View|RedirectResponse
    {
        if ($this->isInstalled()) {
            return $request->user()?->isSuperAdmin
                ? redirect()->route('manager.dashboard')
                : redirect()->route('manager.login');
        }

        return view('install');
    }

    public function store(Request $request): RedirectResponse
    {
        if ($this->isInstalled()) {
            return redirect()->route('manager.login');
        }

        $data = $request->validate([
            'adminName' => ['required', 'string', 'max:160'],
            'adminEmail' => ['required', 'email', 'max:190', 'unique:User,email'],
            'password' => ['required', 'string', 'min:8', 'confirmed'],
        ]);

        $admin = DB::transaction(function () use ($data): User {
            $admin = User::create([
                'name' => trim($data['adminName']),
                'email' => strtolower(trim($data['adminEmail'])),
                'passwordHash' => Hash::make($data['password']),
                'isSuperAdmin' => true,
                'emailVerified' => now(),
            ]);

            ApplicationInstallation::create([
                'id' => 'singleton',
                'status' => InstallationStatus::Installed,
                'installedAt' => now(),
                'installedVersion' => 'laravel-1',
                'initialAdminUserId' => $admin->id,
                'primaryBusinessId' => null,
                'metadata' => ['installer' => 'platform-admin-only'],
            ]);

            return $admin;
        });

        Auth::login($admin);
        $request->session()->regenerate();

        return redirect()->route('manager.dashboard')->with('status', 'Platform setup complete. Create your first business from Manager.');
    }

    private function isInstalled(): bool
    {
        try {
            return ApplicationInstallation::query()->where('status', InstallationStatus::Installed)->exists();
        } catch (\Throwable) {
            return false;
        }
    }
}