
<?php
defined('BASEPATH') or exit('No direct script access allowed');

class DiagGoogle extends CI_Controller
{
    public function ping() { echo "OK"; }
    // DiagGoogle.php
    public function config()
    {
        $cfg = $this->config->item('google');
        header('Content-Type: application/json');
        echo json_encode($cfg, JSON_PRETTY_PRINT);
    }

    public function sa_file()
    {
        // on récupère la config (elle est autoloadée maintenant)
        $cfg = $this->config->item('google');
        $path = $cfg['credentials_path'] ?? '';

        $out = [
            'credentials_path' => $path,
            'exists'           => file_exists($path),
            'readable'         => is_readable($path),
            'client_email'     => null,
        ];

        if (is_readable($path)) {
            $j = json_decode(@file_get_contents($path), true);
            $out['client_email'] = $j['client_email'] ?? null;
        }

        header('Content-Type: application/json; charset=utf-8');
        echo json_encode($out, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
    }

    public function token_drive_meta()
    {
        try {
            $this->load->library('GoogleServiceJWT');
            // Scope minimal pour tester: lecture des métadonnées Drive
            $scope = 'https://www.googleapis.com/auth/drive.metadata.readonly';
            $token = $this->googleservicejwt->getAccessToken($scope);
            echo $token ? "TOKEN_OK" : "TOKEN_FAIL";
        } catch (Throwable $e) {
            header('Content-Type: text/plain; charset=utf-8');
            echo "ERR: ".$e->getMessage();
        }
    }

    public function drive_access()
    {
        try {
            $cfg = $this->config->item('google');
            $driveId = $cfg['shared_drive_id'] ?? null;
            if (!$driveId) { echo "No shared_drive_id in config"; return; }

            $this->load->library('GoogleServiceJWT');

            // 🔧 Scope corrigé :
            $token = $this->googleservicejwt->getAccessToken('https://www.googleapis.com/auth/drive.readonly');

            $url = 'https://www.googleapis.com/drive/v3/drives/'.rawurlencode($driveId);
            $ch = curl_init($url);
            curl_setopt_array($ch, [
                CURLOPT_HTTPHEADER     => ['Authorization: Bearer '.$token],
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_TIMEOUT        => 20,
            ]);
            $raw  = curl_exec($ch);
            $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            curl_close($ch);

            header('Content-Type: application/json; charset=utf-8');
            if ($code === 200) {
                echo $raw; // OK
            } else {
                echo json_encode(['code'=>$code, 'error'=>json_decode($raw, true)], JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES);
            }
        } catch (Throwable $e) {
            header('Content-Type: text/plain; charset=utf-8');
            echo "ERR: ".$e->getMessage();
        }
    }

    public function drive_list()
    {
        try {
            $this->load->library('GoogleDriveDocs');
            $res = $this->googledrivedocs->listSharedDriveFolders(20); // 20 pour tester
            header('Content-Type: application/json; charset=utf-8');
            echo json_encode($res, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
        } catch (Throwable $e) {
            header('Content-Type: text/plain; charset=utf-8');
            echo 'ERR: '.$e->getMessage();
        }
    }
    public function create_doc_test($folderId = null)
    {
        try {
            if (!$folderId) { echo "Fournis /DiagGoogle/create_doc_test/{folderId}"; return; }

            // On utilise notre librairie sans Composer
            $this->load->library('GoogleDriveDocs');

            $res = $this->googledrivedocs->createGoogleDocInFolder(
                $folderId,
                'TEST CI ' . date('Y-m-d H:i:s'),
                "Bonjour de MS1!\nCeci est un test automatique."
            );

            header('Content-Type: application/json; charset=utf-8');
            echo json_encode($res, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
        } catch (Throwable $e) {
            header('Content-Type: text/plain; charset=utf-8');
            echo 'ERR: '.$e->getMessage();
        }
    }
    public function cal_list()
    {
        try {
            $this->load->library('GoogleServiceJWT');

            // Optionnel: /DiagGoogle/cal_list?as=utilisateur@tondomaine.com
            $as = $this->input->get('as'); // impersonation si Domain-wide Delegation activée
            $token = $this->googleservicejwt->getAccessToken(
                'https://www.googleapis.com/auth/calendar.readonly',
                $as ?: null
            );

            $url = 'https://www.googleapis.com/calendar/v3/users/me/calendarList?maxResults=50';
            $ch = curl_init($url);
            curl_setopt_array($ch, [
                CURLOPT_HTTPHEADER     => ['Authorization: Bearer '.$token],
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_TIMEOUT        => 20,
            ]);
            $raw  = curl_exec($ch);
            $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            curl_close($ch);

            header('Content-Type: application/json; charset=utf-8');
            if ($code === 200) {
                echo $raw; // doit contenir "items": [ {id, summary, ...}, ... ]
            } else {
                echo json_encode(['code'=>$code, 'error'=>json_decode($raw, true)], JSON_PRETTY_PRINT|JSON_UNESCAPED_SLASHES);
            }
        } catch (Throwable $e) {
            header('Content-Type: text/plain; charset=utf-8'); echo 'ERR: '.$e->getMessage();
        }
    }


}