#user.py
 
from app.libs.redprint import Redprint
from flask import jsonify, request
from app.app import mongo
from app.app import jwt
from bson.json_util import dumps
from bson.objectid import ObjectId
from flask_jwt_extended import create_access_token, jwt_required, get_jwt_identity
import bcrypt
from pymongo.errors import DuplicateKeyError
from werkzeug.exceptions import BadRequest
 
# 初始化红图
api = Redprint('user')

 
@api.route('/get')
def get_user2():
    return "I am user get method"


def check_password(username, password):
    # 找到用户
    user = mongo.db.users.find_one({"username": username})
    if user is None:
        # 返回一个更泛化的错误信息
        return {"error": "此用户名不存在."}, 404
    # 验证密码
    if bcrypt.checkpw(password.encode('utf-8'), user['password_hash']):
        return {"message": "Password correct"}, 200
    else:
        return {"error": "密码错误."}, 401
        

def make_jwt_info(user):
    # 使用flask_jwt_extended的create_access_token函数创建JWT
    access_token = create_access_token(identity=str(user['_id']), additional_claims={
        'email': user['email'],
        'username': user['username'],
        'avatar_url': user['avatar_url'],
        'bio': user['bio']
    })
    return access_token


@api.route('/pwdlogin', methods=['POST'])
def user_pwd_login():
    username = request.json.get('username')
    password = request.json.get('password')
    result, status_code = check_password(username, password)  # 解包元组
    # 根据check_password的返回结果处理
    if result.get('message') == "Password correct":
        # access_token = create_access_token(identity=username)
        user = mongo.db.users.find_one({"username": username})
        access_token = make_jwt_info(user)
        return jsonify({'token': access_token}), 200
    else:
        return jsonify(result), status_code  # 使用从check_password返回的状态码


def InitUserInfo(user_info):
    user_info["avatar_url"] = "https://afanai.top:8088/imgs/default_avatar_1.jpeg"
    user_info["bio"] = "永远不要降低心灵飞翔的高度"
    user_info["password_hash"] = bcrypt.hashpw(user_info["password"].encode('utf-8'), bcrypt.gensalt())


@api.route('/register', methods=['POST'])
def user_pwd_register():
    user_info = request.get_json()
    InitUserInfo(user_info)
    try:
        mongo.db.users.insert_one(user_info)
        username = user_info["username"]
        return jsonify({"message": f"User {username} registered successfully."}), 201
    except DuplicateKeyError as e:
        # 处理DuplicateKeyError
        # 从异常信息中解析出冲突的字段
        error_message = str(e)
        if 'username' in error_message:
            return jsonify({"error": "此用户名已存在."}), 409
        if 'email' in error_message:
            return jsonify({"error": "此邮箱已被注册."}), 409
        # 如果异常信息中没有明确的字段信息，可以考虑更详细的异常处理或日志记录
        return jsonify({"error": "未知错误."}), 500
	
	
@api.route('/getall')
def get_all_user():
    user_infos = list(mongo.db.users.find())
    # 将ObjectId转换为字符串，以便于JSON序列化
    # 使用bson的json_util来序列化包含ObjectId的对象
    # json_string = dumps(user_infos)
    for user_info in user_infos:
        user_info["_id"] = str(user_info["_id"])
        user_info["password_hash"] = "******"
    return jsonify(user_infos)
	
	
@api.route('/modify/<user_id>', methods=['PUT'])
def modify_specify_user(user_id):
    try:
        item = request.get_json()
        # print(item)
        if not item:
            raise BadRequest("请求体为空")
        # 将user_id转换为ObjectId
        user_id_obj = ObjectId(user_id)
        result = mongo.db.users.update_one({"_id": user_id_obj}, {"$set": item})
        # 如果没有找到或修改任何文档
        if result.modified_count == 0:
            return jsonify({"error": "未找到用户或没有数据被修改"}), 404
        
        user = mongo.db.users.find_one({"_id": user_id_obj})
        access_token = make_jwt_info(user)
        return jsonify({'token': access_token}), 201
    except BadRequest as e:
        return jsonify({"error": str(e)}), 400
    except Exception as e:
        return jsonify({"error": "内部服务器错误"}), 500
	

@api.route('/search', methods=['GET'])
def search_specify_user():
    try:
        # 从查询字符串中获取参数
        query = request.args.get('query')
        print(query)
        if not query:
            raise BadRequest("查询参数为空")

        # 搜索用户名
        user = mongo.db.users.find_one({"username": query})
        # print(user)
        queryUser = {}
        queryRes = []
        if user:
            queryUser["userId"] = str(user["_id"])
            queryUser["username"] = user["username"]
            queryUser["avatar_url"] = user["avatar_url"]
            queryUser["bio"] = user["bio"]
            queryRes.append(queryUser)
        print(queryRes)

        if len(queryRes):
            return jsonify({'queryRes': queryRes}), 200
        else:
            return jsonify({'queryRes': "None Result"}), 404
        
    except BadRequest as e:
        return jsonify({"error": str(e)}), 400
    except Exception as e:
        return jsonify({"error": "内部服务器错误"}), 500


# @api.route('/items', methods=['POST'])
# def add_item():
#     item = request.get_json()
#     result = db.items.insert_one(item)
#     return jsonify({"_id": str(result.inserted_id)})

# @api.route('/items/<item_id>', methods=['PUT'])
# def update_item(item_id):
#     item = request.get_json()
#     result = db.items.update_one({"_id": ObjectId(item_id)}, {"$set": item})
#     return jsonify({"modified_count": result.modified_count})

# @api.route('/items/<item_id>', methods=['DELETE'])
# def delete_item(item_id):
#     result = db.items.delete_one({"_id": ObjectId(item_id)})
#     return jsonify({"deleted_count": result.deleted_count})


# @app.route('/login', methods=['GET', 'POST'])
# def login_page():
#     if request.method == 'POST':
#         username = request.form['username']
#         password = request.form['password']
#         # 在此处验证用户凭据
#         user = User()
#         user.id = username
#         login_user(user)
#         return redirect(url_for('protected_page'))
#     return render_template('login.html')
 
# @app.route('/logout')
# def logout_page():
#     if current_user.is_active:
#         logout_user()
#         return 'Logged out'
#     else:
#         return "you aren't login"