#!/usr/bin/python3
# SkyControl.py
# A Control Script for SkywarnPlus v0.2.0
# by Mason Nelson (N5LSN/WRKF394)
#
# This script allows you to change the value of specific keys in the SkywarnPlus config.yaml file.
# It's designed to enable or disable certain features of SkywarnPlus from the command line.
# It is case-insensitive, accepting both upper and lower case parameters.
#
# Usage: SkyControl.py <key> <value>
# Example: SkyControl.py sayalert false
# This will set 'SayAlert' to 'False' in the config.yaml file.

import os
import shutil
import sys
import yaml
import subprocess
from pathlib import Path

# Define a function to change the CT
def changeCT(ct):
    tone_dir = config["CourtesyTones"].get("ToneDir", os.path.join(str(SCRIPT_DIR), "SOUNDS/TONES"))
    ct1 = config["CourtesyTones"]["Tones"]["CT1"]
    ct2 = config["CourtesyTones"]["Tones"]["CT2"]
    wx_ct = config["CourtesyTones"]["Tones"]["WXCT"]
    rpt_ct1 = config["CourtesyTones"]["Tones"]["RptCT1"]
    rpt_ct2 = config["CourtesyTones"]["Tones"]["RptCT2"]

    if ct == "normal":
        src_file = os.path.join(tone_dir, ct1)
        dest_file = os.path.join(tone_dir, rpt_ct1)
        shutil.copyfile(src_file, dest_file)

        src_file = os.path.join(tone_dir, ct2)
        dest_file = os.path.join(tone_dir, rpt_ct2)
        shutil.copyfile(src_file, dest_file)
        return True  # Indicate that CT was changed to normal
    elif ct == "wx":
        src_file = os.path.join(tone_dir, wx_ct)
        dest_file = os.path.join(tone_dir, rpt_ct1)
        shutil.copyfile(src_file, dest_file)

        src_file = os.path.join(tone_dir, wx_ct)
        dest_file = os.path.join(tone_dir, rpt_ct2)
        shutil.copyfile(src_file, dest_file)
        return False  # Indicate that CT was changed to wx
    else:
        print("Invalid CT value. Please provide either 'wx' or 'normal'.")
        sys.exit(1)

# Define a function to change the ID
def changeID(id):
    id_dir = config["IDChange"].get("IDDir", os.path.join(SCRIPT_DIR, "ID"))
    normal_id = config["IDChange"]["IDs"]["NormalID"]
    wx_id = config["IDChange"]["IDs"]["WXID"]
    rpt_id = config["IDChange"]["IDs"]["RptID"]

    if id == "normal":
        src_file = os.path.join(id_dir, normal_id)
        dest_file = os.path.join(id_dir, rpt_id)
        shutil.copyfile(src_file, dest_file)
        return True  # Indicate that ID was changed to normal
    elif id == "wx":
        src_file = os.path.join(id_dir, wx_id)
        dest_file = os.path.join(id_dir, rpt_id)
        shutil.copyfile(src_file, dest_file)
        return False  # Indicate that ID was changed to wx
    else:
        print("Invalid ID value. Please provide either 'wx' or 'normal'.")
        sys.exit(1)

# Define valid keys and corresponding audio files
VALID_KEYS = {
    "enable": {"key": "Enable", "section": "SKYWARNPLUS", "true_file": "SWP85.wav", "false_file": "SWP86.wav"},
    "sayalert": {"key": "SayAlert", "section": "Alerting", "true_file": "SWP87.wav", "false_file": "SWP88.wav"},
    "sayallclear": {"key": "SayAllClear", "section": "Alerting", "true_file": "SWP89.wav", "false_file": "SWP90.wav"},
    "tailmessage": {"key": "Enable", "section": "Tailmessage", "true_file": "SWP91.wav", "false_file": "SWP92.wav"},
    "courtesytone": {"key": "Enable", "section": "CourtesyTones", "true_file": "SWP93.wav", "false_file": "SWP94.wav"},
    "alertscript": {"key": "Enable", "section": "AlertScript", "true_file": "SWP81.wav", "false_file": "SWP82.wav"},
    "changect": {"key": "", "section": "", "true_file": "SWP79.wav", "false_file": "SWP80.wav", "available_values": ['wx', 'normal']},
    "changeid": {"key": "", "section": "", "true_file": "SWP77.wav", "false_file": "SWP78.wav", "available_values": ['WX', 'NORMAL']},
}

# Get the directory of the script
SCRIPT_DIR = Path(__file__).parent.absolute()

# Get the configuration file
CONFIG_FILE = SCRIPT_DIR / "config.yaml"

# Check if the correct number of arguments are passed
if len(sys.argv) != 3:
    print("Incorrect number of arguments. Please provide the key and the new value.")
    print("Usage: python3 {} <key> <value>".format(sys.argv[0]))
    sys.exit(1)

# The input key and value
key, value = sys.argv[1:3]

# Make sure the provided key is valid
if key not in VALID_KEYS:
    print("The provided key does not match any configurable item.")
    sys.exit(1)

# Validate the provided value 
if key in ["changect", "changeid"]:
    if value not in VALID_KEYS[key]["available_values"]:
        print("Invalid value for {}. Please provide either {} or {}".format(key, VALID_KEYS[key]['available_values'][0], VALID_KEYS[key]['available_values'][1]))
        sys.exit(1)
else:
    if value not in ['true', 'false', 'toggle']:
        print("Invalid value. Please provide either 'true' or 'false' or 'toggle'.")
        sys.exit(1)

# Load the config file
with open(str(CONFIG_FILE), 'r') as f:
    config = yaml.safe_load(f)

if key == 'changect':
    value = changeCT(value)
elif key == 'changeid':
    value = changeID(value)
else:
    # Convert the input value to boolean if not 'toggle'
    if value != 'toggle':
        value = value.lower() == 'true'

    # Check if toggle is required
    if value == 'toggle':
        current_value = config[VALID_KEYS[key]['section']][VALID_KEYS[key]['key']]
        value = not current_value

    # Update the key in the config
    config[VALID_KEYS[key]['section']][VALID_KEYS[key]['key']] = value

    # Save the updated config back to the file
    with open(str(CONFIG_FILE), 'w') as f:
        yaml.dump(config, f)

# Get the correct audio file based on the new value
audio_file = VALID_KEYS[key]['true_file'] if value else VALID_KEYS[key]['false_file']

# Play the corresponding audio message on all nodes
nodes = config['Asterisk']['Nodes']
for node in nodes:
    subprocess.run(['/usr/sbin/asterisk', '-rx', 'rpt localplay {} {}/SOUNDS/ALERTS/{}'.format(node, SCRIPT_DIR, audio_file.rsplit(".", 1)[0])])