from HwUser import HwUser
import json
import time

'''
    在雲伺服器的/root/huawei 目錄下編寫 create_subnet.py 檔案， 並匯入賽項提供的HwUser.py 檔案獲取授權。編寫 Python 程式碼，參考官方相關的API呼叫文件，建立華為雲的虛擬私有云子網，具體要求為

    （1）使用虛擬私有云名稱獲取其 ID（不允許直接填寫虛擬私有云 ID）；

    （2）虛擬私有云子網名稱：chinaskills_subnet；

    （3）虛擬私有云子網網段：192.168.100.0/24；

    （4）虛擬私有云子網閘道器：192.168.100.1；

    （5）虛擬私有云子網可用區域：cn-north-4a；

    （6）如果虛擬私有云子網已經存在，程式碼中需要先刪除；

    （7）使用其原始碼的 get 方法輸出此虛擬私有云子網的詳細資訊（狀態要求為 ACTIVE）。
'''

if __name__ == "__main__":

    # 1 獲取授權
    ak = "7IJFH088K7ZHG6H7MJ7E"
    sk = "ClkPa47PpNxEpiPzKQ3c5Nzcb1S5uSVGhQ13owge"
    user = HwUser(ak, sk)

    # 2 查詢VPC 
    print("正在查詢vpc。。。。", end="")
    resp = user.httpRequest("GET", "https://vpc.cn-east-2.myhuaweicloud.com/v3/0f4115bb9280f3192fa7c00e1c434035/vpc/vpcs")
    result = json.loads(str(resp.content, encoding="utf-8"))
    ## 2.1 檢視是否已存在VPC chinaskills_vpc
    ### 取出現有的VPC 列表
    now_vpc_list = result["vpcs"]
    targetID = ""
    for i in now_vpc_list:
        if "chinaskills_vpc" == i["name"]:
            targetID = i["id"]
    if targetID == "":
        exit("當前環境未存在 chinaskills_vpc")
    else:
        print("   正在查詢 chinaskills_vpc 中子網是否存在。。。")
        ### 檢視子網資訊
        requestURL = "https://vpc.cn-east-2.myhuaweicloud.com/v1/0f4115bb9280f3192fa7c00e1c434035/subnets?vpc_id="+targetID
        resp = user.httpRequest("GET", requestURL,{ "content-type": "application/json" },"")
        result = json.loads(str(resp.content, encoding="utf-8"))
        now_vpc_subnet_list = result["subnets"]
        subnets = []
        for i in now_vpc_subnet_list:
            if "chinaskills_subnet" == i["name"]:
                ### 刪除子網
                requestURL = "https://vpc.cn-east-2.myhuaweicloud.com/v1/0f4115bb9280f3192fa7c00e1c434035/vpcs/"+targetID+"/subnets/"+i["id"]
                resp = user.httpRequest("DELETE", requestURL,{ "content-type": "application/json" },"")
        print("   刪除完成")

    # 3 建立subnet
    print("正在建立subnet。。。。", end="")
    time.sleep(2)
    requestURL = "https://vpc.cn-east-2.myhuaweicloud.com/v1/0f4115bb9280f3192fa7c00e1c434035/subnets"
    bodys=json.dumps({
        "subnet": {
            "name": "chinaskills_subnet",
            "cidr": "192.168.100.0/24",
            "vpc_id": targetID,
            "gateway_ip": "192.168.100.1",
            "extra_dhcp_opts": [
            {
                "opt_name": "ntp"
            }
            ]
        }
        })
    resp = user.httpRequest("POST", requestURL,{ "content-type": "application/json" },bodys)
    ## 3.1 獲取ID
    result = json.loads(str(resp.content, encoding="utf-8"))
    yid = result["subnet"]["id"]
    print("完成，新subnet ID為："+yid)

    # 4 查詢
    print("Subnet資訊查詢中。。。")
    time.sleep(2)
    requestURL = "https://vpc.cn-east-2.myhuaweicloud.com/v1/0f4115bb9280f3192fa7c00e1c434035/subnets/"+yid
    resp = user.httpRequest("GET", requestURL, { "content-type": "application/json" }, "")
    result = json.loads(str(resp.content, encoding="utf-8"))

    print("   subnet name："+str(result["subnet"]["name"]))
    print("   subnet id:"+str(result["subnet"]["id"]))
    print("   subnet status:"+str(result["subnet"]["status"]))