<?php

namespace App\Controllers;

use App\Models\Session;
use App\Models\Message;

class MessageController
{
    public static function index(int $sessionId): void
    {
        $user = $GLOBALS['auth_user'];
        $session = Session::findById($sessionId);
        if (!$session || $session['user_id'] != $user['userId']) {
            http_response_code(404);
            echo json_encode(['success' => false, 'message' => '会话不存在']);
            return;
        }
        $messages = Message::findBySessionId($sessionId);
        echo json_encode(['success' => true, 'data' => $messages]);
    }

    public static function create(int $sessionId): void
    {
        $user = $GLOBALS['auth_user'];
        $session = Session::findById($sessionId);
        if (!$session || $session['user_id'] != $user['userId']) {
            http_response_code(404);
            echo json_encode(['success' => false, 'message' => '会话不存在']);
            return;
        }

        $input = json_decode(file_get_contents('php://input'), true);

        if (empty($input['role']) || !isset($input['content']) || $input['content'] === '') {
            http_response_code(400);
            echo json_encode(['success' => false, 'message' => 'role 和 content 为必填字段']);
            return;
        }

        $data = [
            'session_id' => $sessionId,
            'role' => $input['role'],
            'content' => $input['content'],
        ];

        if (isset($input['file_info'])) {
            $data['file_info'] = $input['file_info'];
        }
        if (isset($input['thinking_content'])) {
            $data['thinking_content'] = $input['thinking_content'];
        }

        $message = Message::create($data);
        echo json_encode(['success' => true, 'data' => $message]);
    }
}