"""对外公开的 API 路由 (v1) - 支持 API Key 认证"""
from flask import Blueprint, request, jsonify, current_app
from services.apikey_service import APIKeyService
from services.v1_service import V1Service

v1_bp = Blueprint('v1_api', __name__)

@v1_bp.route('/chat/completions', methods=['POST'])
def chat_completions():
    """
    OpenAI 兼容的 Chat Completions 接口
    支持多模型，通过 modelapiservice 分发
    """
    # 1. 认证
    auth_header = request.headers.get('Authorization')
    user, error = APIKeyService.authenticate_api_key(auth_header)
    
    if error:
        return jsonify({'error': {'message': error, 'type': 'auth_error', 'code': 401}}), 401
    
    # 2. 获取请求数据
    data = request.get_json()
    if not data:
        return jsonify({'error': {'message': '无效的 JSON 请求体', 'type': 'invalid_request_error', 'code': 400}}), 400
        
    result, status_code = V1Service.chat_completions(user, data)
    
    if status_code == 200 and data.get('stream', False):
         return current_app.response_class(result, mimetype='text/event-stream')
    
    return jsonify(result), status_code

@v1_bp.route('/text-to-image', methods=['POST'])
def text_to_image_alias():
    """兼容旧接口路径"""
    return chat_completions()