import os
from threading import Thread
from mycroft import MycroftSkill, intent_handler

class RunScriptSkill(MycroftSkill):
    def __init__(self):
        super().__init__()
        self.script_dir = None
        self.scripts = []

    def initialize(self):
        self.settings_change_callback = self.on_settings_changed
        self.on_settings_changed()

    def on_settings_changed(self):
        self.script_dir = self.settings.get('script_dir', os.path.expanduser("~/scripts"))
        self.read_scripts_dir()

    def read_scripts_dir(self):
        if self.script_dir and os.path.isdir(self.script_dir):
            self.log.info("Reading scripts from % s" % self.script_dir)
            self.scripts = os.listdir(self.script_dir)
            self.log.debug("Scripts: % s" % ','.join(self.scripts))
        else:
            self.log.critical("The script_dir directory % s does not exist or can't be read" % self.script_dir)
            self.scripts = []

    @intent_handler('RunScript.intent')
    def handle_run_script_intent(self, msg=None):
        script = msg.data.get('script', None).replace(" ", "-")
        script_path = os.path.join(self.script_dir, script)
        if script in self.scripts and os.path.isfile(script_path):
            self.speak_dialog('Running', {'script': script})
            thread = Thread(target = os.system,  args = (script_path, ))
            thread.start()
        else:
            self.speak_dialog('NotFound', {'script': script})

    def stop(self):
        pass

def create_skill():
    return RunScriptSkill()