Google Homeに雨を喋らせます

googlehome-realtime-weather.py

import os
import threading
import time
import traceback

import http.server
import socketserver

import pychromecast
import requests
from gtts import gTTS
from scipy import signal


def die(str):
    print(str)
    exit(1)


API_URL = "https://map.yahooapis.jp/weather/V1/place"
APP_ID = os.getenv("YAHOO_APP_ID")
WAIT_TIME = 60 * 5
COORDINATE_LOC = [
    139.688911,
    35.502668
]

HOST = "192.168.0.236"
PORT = 25565

casts = pychromecast.get_chromecasts()
toCast = None


def autoSelect():
    global toCast
    if len(casts) == 0:
        return
    toCast = casts[0][0]
    print("Device AutoSelected:" + toCast.device.friendly_name + "(" + str(toCast.device.uuid) + ")")
    toCast.wait()


def runCommand(command, args):
    if command == "test":
        if len(args) is 0:
            print("Usage: test <test-data json>")

        jsonStr = "".join(args)
        import json
        data = json.loads(jsonStr)
        weathers = convertData(data)
        tendency = calcWeatherTendency(weathers)
        print("Tendency:" + str(tendency))
        postWeatherReport(createReport(weathers, tendency, int(time.time())))


def command(inputStr):
    command = inputStr.split(" ")
    while "" in command:
        command.remove("")
    if len(command) is 0:
        return
    args = command[1:]
    command = command[0]

    runCommand(command, args)


def checkWeather():
    req = requests.get(API_URL, params={
        "appid": APP_ID,
        "coordinates": ",".join(map(str, COORDINATE_LOC)),
        "output": "json",
        "interval": 5,
    })

    if req.status_code is not 200:
        die("Error: " + str(req.status_code))

    weathers = convertData(req.json()["Feature"][0]["Property"]["WeatherList"]["Weather"])
    if len(weathers) is 0:
        die("Error: No weather data has been provided")

    tendency = calcWeatherTendency(weathers)

    print("Tendency:" + str(tendency))

    postAutoReport(weathers, tendency)

def postWeatherReport(report):

    detail = report["result"]
    reportType = report["reportType"]

    print("Posting: " + reportType + " - " + detail)

    if toCast is not None:
        voice = gTTS(detail, lang="ja")
        voice.save("temp.mp3")
        media = toCast.media_controller
        media.play_media("http://" + HOST + ":" + str(PORT) + "/", "audio/mp3")
        media.block_until_active()


lastPosted = 0


def postAutoReport(weather, tendency):
    global lastPosted

    report = createReport(weather, tendency, lastPosted)

    if report is None:
        return

    lastPosted = int(time.time())

    postWeatherReport(report)


def calcWeatherTendency(waterfalls):
    isRaining = waterfalls[0] != 0

    startsOn = -1
    stopsOn = -1
    continuesOn = -1
    for i in range(len(waterfalls)):

        if waterfalls[i] == 0:
            if isRaining and stopsOn == -1:
                stopsOn = i * 5
        else:
            if not isRaining and startsOn == -1:
                startsOn = i * 5
            elif stopsOn != -1 and continuesOn == -1:
                continuesOn = i * 5

    while waterfalls[-1] == 0:
        waterfalls.pop()

    detrended = waterfalls - signal.detrend(waterfalls)
    tendency = detrended.argmax() - detrended.argmin()

    if tendency > 0:
        tendency = 1
    elif tendency < 0:
        tendency = -1

    return {
        "tendency": tendency,
        "isRaining": isRaining,
        "startsOn": startsOn,
        "stopsOn": stopsOn,
        "continuesOn": continuesOn,
    }


def createReport(weathers, tendency, lastNoticed=0, isRained=False):
    result = ""

    if tendency["isRaining"]:
        info = False
        result += "今降っている雨は"
        tendencyValue = tendency["tendency"]
        if tendencyValue != 0:
            if tendencyValue == 1:
                result += "強くなる"
            elif tendencyValue == -1:
                result += "弱くなる"
            result += "傾向にあり"
            info = True
            reportType = "rain_tendency"
        else:
            result += "変わらず降り続け"
            reportType = "rain_not_change"

        if tendency["stopsOn"] != -1:
            result += str(tendency["stopsOn"]) + "分後には止み"
            info = True
            reportType = "rain_stops"
        if tendency["continuesOn"] != -1:
            result += "ますが、" + str(tendency["continuesOn"]) + "分後にはまた降り始め"
            info = True
            reportType = "rain_continues"

        if not info:
            return None

        result += "ます。"

    else:
        if tendency["startsOn"] != -1:
            startsOn = tendency["startsOn"]

            if startsOn == 0 and int(time.time()) - lastNoticed < 60 * 10:
                return None

            rain_from = "今" if startsOn == 0 else str(startsOn) + "分後"
            result += rain_from + "から、" + getRainClass(weathers[int(startsOn / 5)]) + "が降ります"
            reportType = "rain_starts"

            if tendency["stopsOn"] != -1 and tendency["continuesOn"]:
                result += "が、" + str(tendency["stopsOn"]) + "分後には止むでしょう"
                reportType = "shower_rain_starts"

            result += "。"
        elif isRained:
            result += "雨がやみました。"
            reportType = "rain_ended"
        else:
            return None

    return {
        "result": result,
        "reportType": reportType,
    }


def convertData(datas):
    return [data["Rainfall"] for data in datas]


def getRainClass(rainfall):
    if rainfall <= 1:
        return "非常に弱い雨"
    elif rainfall <= 3:
        return "弱い雨"
    if rainfall <= 20:
        return "やや強い雨"
    elif rainfall <= 30:
        return "強い雨"
    elif rainfall <= 50:
        return "激しい雨"
    elif rainfall <= 80:
        return "非常に激しい雨"
    else:
        return "猛烈な雨"


def pollWeather():
    while True:
        print("Checking weather...")
        checkWeather()
        time.sleep(WAIT_TIME)


def startServer():
    httpd = socketserver.TCPServer(("0.0.0.0", PORT), Handler)
    print("Starting server...", PORT)
    httpd.serve_forever()


class Handler(http.server.BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header("Content-type", "audio/mp3")
        self.end_headers()
        self.wfile.write(open("temp.mp3", "rb").read())


if __name__ == "__main__":
    print("-=-=-=-=[Googlehome weather notifier]=-=-=-=-")
    print("Made-By: Daisuke Yamazaki")
    print()
    pollThread = threading.Thread(target=pollWeather)
    serverThread = threading.Thread(target=startServer)

    print("Ready.")

    autoSelect()
    pollThread.start()
    serverThread.start()

    while True:
        ipt = input(">")
        try:
            command(ipt)
        except Exception as e:
            traceback.print_exc()
        print("OK.")

LICENSE

MIT License

Copyright (c) 2022 Peyang

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.