<?php
declare(strict_types=1);

namespace MailAccountAdmin\Frontend\Accounts;

use MailAccountAdmin\Common\UserHelper;
use MailAccountAdmin\Frontend\BaseController;
use MailAccountAdmin\Models\Account;
use MailAccountAdmin\Repositories\AccountRepository;
use MailAccountAdmin\Repositories\AliasRepository;
use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Slim\Views\Twig;

class AccountController extends BaseController
{
    /** @var AccountRepository */
    private $accountRepository;
    /** @var AliasRepository */
    private $aliasRepository;

    public function __construct(Twig $view, UserHelper $userHelper, AccountRepository $accountRepository, AliasRepository $aliasRepository)
    {
        parent::__construct($view, $userHelper);
        $this->accountRepository = $accountRepository;
        $this->aliasRepository = $aliasRepository;
    }


    // -- /accounts - List all accounts

    public function showAccounts(Request $request, Response $response): Response
    {
        // Parse query parameters for filters
        $queryParams = $request->getQueryParams();
        $filterByDomain = $queryParams['domain'] ?? null;

        $renderData = [
            'filterDomain' => $filterByDomain,
            'accountList' => $this->accountRepository->fetchAccountList($filterByDomain),
        ];

        return $this->view->render($response, 'accounts.html.twig', $renderData);
    }


    // -- /accounts/{id} - Show account details

    public function showAccountDetails(Request $request, Response $response, array $args): Response
    {
        // Parse URL arguments
        $accountId = (int)$args['id'];

        // Get account data from database
        $account = $this->accountRepository->fetchAccountById($accountId);

        // Don't display the password hash, but at least the type of hash (used hash algorithm)
        if ($account->getPasswordHash() === '') {
            $passwordHashType = 'empty';
        } else {
            $passwordHashInfo = password_get_info($account->getPasswordHash());
            $passwordHashType = $passwordHashInfo['algoName'] ?? 'unknown';
        }

        // Get list of aliases for this account
        $aliases = $this->aliasRepository->fetchAliasesForUserId($accountId);

        $renderData = [
            'id' => $accountId,
            'accountUsername' => $account->getUsername(),
            'account' => $account,
            'passwordHashType' => $passwordHashType,
            'aliases' => $aliases,
        ];

        return $this->view->render($response, 'account_details.html.twig', $renderData);
    }


    // -- /accounts/new - Create new account

    public function showAccountCreate(Request $request, Response $response): Response
    {
        return $this->showAccounts($request, $response);
    }


    // -- /accounts/{id}/edit - Edit account

    public function showAccountEdit(Request $request, Response $response, array $args): Response
    {
        // Parse URL arguments
        $accountId = (int)$args['id'];

        // Get account data from database
        $account = $this->accountRepository->fetchAccountById($accountId);

        // Render page
        return $this->renderEditPage($response, $account);
    }

    public function editAccount(Request $request, Response $response, array $args): Response
    {
        // TODO: just a placeholder
        $this->view->getEnvironment()->addGlobal('error', 'Not implemented yet!');
        return $this->showAccountEdit($request, $response, $args);
    }

    private function renderEditPage(Response $response, Account $account, array $extraRenderData = []): Response
    {
        $renderData = [
            'id' => $account->getId(),
            'accountUsername' => $account->getUsername(),
            'account' => $account,
        ];

        return $this->view->render($response, 'account_edit.html.twig', array_merge($renderData, $extraRenderData));
    }

    // -- /accounts/{id}/delete - Delete account

    public function showAccountDelete(Request $request, Response $response, array $args): Response
    {
        // Parse URL arguments
        $accountId = (int)$args['id'];

        // Get account data and list of aliases from database
        $account = $this->accountRepository->fetchAccountById($accountId);
        $aliases = $this->aliasRepository->fetchAliasesForUserId($accountId);

        $renderData = [
            'id' => $accountId,
            'accountUsername' => $account->getUsername(),
            'aliases' => $aliases,
        ];

        return $this->view->render($response, 'account_delete.html.twig', $renderData);
    }

    public function deleteAccount(Request $request, Response $response, array $args): Response
    {
        // TODO: just a placeholder
        $this->view->getEnvironment()->addGlobal('error', 'Not implemented yet!');
        return $this->showAccountDelete($request, $response, $args);
    }
}