import network
import usocket
import ussl
import ujson
import time

# === WiFi 設定 ===
WIFI_SSID = "Wokwi-GUEST" # WIFI_SSID = "你的WiFi帳號"
WIFI_PASS = "" # WIFI_PASS = "你的WiFi密碼"

# === CWB API 設定 ===
API_KEY = "CWB-7A602268-CB04-4170-8A8D-0DBC7A57312D" # "你的CWB授權碼"
LOCATION = "臺北市"

# === 連線 WiFi ===
def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    if not wlan.isconnected():
        print("正在連接 WiFi...")
        wlan.connect(WIFI_SSID, WIFI_PASS)
        while not wlan.isconnected():
            time.sleep(1)
            print("等待連線中...")
    print("已連上 WiFi:", wlan.ifconfig())

# === 取得 CWB JSON ===
def get_cwb_json(api_key, location):
    host = "opendata.cwa.gov.tw"
    port = 443
    path = "/api/v1/rest/datastore/F-C0032-001?Authorization={}&locationName={}".format(api_key, location)

    try:
        # 建立 socket 連線
        addr = usocket.getaddrinfo(host, port)[0][-1]
        s = usocket.socket()
        s.connect(addr)
        s = ussl.wrap_socket(s)

        # 發送 GET 請求
        request = "GET {} HTTP/1.0\r\nHost: {}\r\n\r\n".format(path, host)
        s.write(request.encode())

        # 讀取回應
        response = b""
        while True:
            data = s.read(1024)
            if not data:
                break
            response += data

        s.close()

        # 解析 HTTP header 與 JSON
        response = response.decode()
        json_start = response.find("{")
        json_data = response[json_start:]
        return ujson.loads(json_data)

    except Exception as e:
        print("讀取失敗:", e)
        return None

# === 解析並顯示天氣資訊 ===
def print_weather(data):
    if not data:
        print("沒有資料可顯示")
        return

    location = data["records"]["location"][0]
    city = location["locationName"]
    print("地區:", city)

    for elem in location["weatherElement"]:
        element_name = elem["elementName"]
        description = elem["time"][0]["parameter"]["parameterName"]
        print(f"{element_name}: {description}")

# === 主程式 ===
connect_wifi()

while True:
    data = get_cwb_json(API_KEY, LOCATION)
    print_weather(data)
    print("----------------------")
    time.sleep(600)  # 每10分鐘更新一次