import subprocess
from datetime import datetime
from config import config
import requests
from multiprocessing import Process

def tts_command(text):
    if config["engine"]["tts"] == "espeak":
        return ["espeak", text]
    elif config["engine"]["tts"] == "festival":
        filename = "/tmp/phone_input.txt"
        with open(filename, "w") as f:
            f.write(text)
        return ["festival", "--tts", filename]

class Event():
    def __init__(self, phone, args):
        self.args = args
        self.phone = phone

    def get_name(self):
        return "generic event"

    def get_text(self):
        return "event"

    def run(self):
        self.phone.run_until_hangup(tts_command(self.get_text()))


class FortuneEvent(Event):
    def get_name(self):
        return "fortune"

    def get_text(self):
        res = subprocess.run(["fortune", "-s"], stdout=subprocess.PIPE)
        return res.stdout.decode("utf-8")


class DirectoryEvent(Event):
    def get_name(self):
        return "directory"

    def get_text(self):
        def recursive_build(prefix, sequences):
            sequence_list = []
            for key in sequences.keys():
                sequence = prefix+" "+str(key)
                if isinstance(sequences[key], dict):
                    sequence_list += recursive_build(sequence, sequences[key])
                else:
                    sequence_list.append((sequence, sequences[key]))
            return sequence_list
        sequences = self.phone.dial_manager.sequences
        text = ""
        for sequence, event in recursive_build("", sequences):
            text += f"For {event.get_name()} dial {sequence}. "
        return text


class OperatorEvent(Event):
    def get_name(self):
        return "operator"

    def run(self):
        loop = True
        while loop:
            now = datetime.now()
            nearest_quarter = ((now.minute // 15 + 1) * 15) % 60
            next_hour = now.hour % 12 if nearest_quarter != 0 else (now.hour + 1) % 12
            next_hour = next_hour if next_hour != 0 else 12
            text = f"In {nearest_quarter - now.minute} minutes it will be {next_hour} {nearest_quarter}"
            commands = [tts_command(text), ["aplay", "/etc/phone/sound/hold.wav"]]
            self.phone.run_many_until_hangup(commands)


class WeatherEvent(Event):
    def get_name(self):
        return "weather"

    def get_text(self):
        key = config["openweathermap"]["key"]
        lat = config["openweathermap"]["lat"]
        lon = config["openweathermap"]["lon"]
        location = config["openweathermap"]["location"]
        units = config["openweathermap"]["units"]
        onecall_url = f"https://api.openweathermap.org/data/2.5/onecall?lat={lat}&lon={lon}&appid={key}&units={units}"
        onecall = requests.get(onecall_url).json()
        current_temp = onecall["current"]["temp"]
        current_desc = onecall["current"]["weather"][0]["description"]
        weather = f"In {location}, it is {current_temp} degrees with {current_desc}. "
        high_temp = onecall["daily"][0]["temp"]["max"]
        pop = onecall["daily"][0]["pop"] * 100
        forecast = f"Today there is a high of {high_temp} with a {pop} percent chance of percipitation."
        return f"{weather}{forecast}"


class RecordEvent(Event):
    def get_name(self):
        return "recorder"

    def run(self):
        self.phone.run_until_hangup(tts_command("Please record a message."))

        process = subprocess.Popen(["arecord", "/tmp/out.wav"])
        self.phone.wait_until_hung_up()
        process.terminate()
        return "recording done"


class PlayEvent(Event):
    def get_name(self):
        return "play"

    def run(self):
        self.phone.run_until_hangup(["aplay", "/tmp/out.wav"])

class WavEvent(Event):
    def get_name(self):
        return self.args[0]

    def run(self):
        self.phone.run_until_hangup(["aplay", self.args[0]])