from plugin import BasePlugin
import curses
import common
import timed_events

class Plugin(BasePlugin):

    def init(self):
        self.api.add_command('remind', self.command_remind,
                usage='<seconds> <todo>',
                help='Remind you of <todo> every <time> seconds.',
                short='Remind you of a task',
                completion=self.completion_remind)
        self.api.add_command('done', self.command_done,
                usage='<id>',
                help='Stop reminding you do the task identified by <id>.',
                short='Remove a task',
                completion=self.completion_done)
        self.api.add_command('tasks', self.command_tasks,
                usage='',
                help='List all the current tasks and their ids.',
                short='List current tasks')
        self.tasks = {}
        self.count = 0

        for option in self.config.options(self.__module__):
            id, secs = option.split(',')
            id = int(id)
            if id > self.count:
                self.count = id
            value = self.config.get(option, '')
            self.tasks[id] = (int(secs), value)
            self.config.remove_section(self.__module__)
            self.config.add_section(self.__module__)
        if self.tasks:
            self.count += 1
            self.command_tasks('', nocommand=True)

    def command_remind(self, arg):
        args = common.shell_split(arg)
        if len(args) < 2:
            return
        time = common.parse_str_to_secs(args[0])
        if not time:
            return

        self.tasks[self.count] = (time, args[1])
        timed_event = timed_events.DelayedEvent(time, self.remind, self.count)
        self.api.add_timed_event(timed_event)
        self.api.information('Task %s added: %s every %s.' % (self.count, args[1],
            common.parse_secs_to_str(time)), 'Info')
        self.count += 1

    def completion_remind(self, the_input):
        txt = the_input.get_text()
        args = common.shell_split(txt)
        n = len(args)
        if txt.endswith(' '):
            n += 1
        if n == 2:
            return the_input.auto_completion(["60", "5m", "15m", "30m", "1h", "10h", "1d"], '')

    def completion_done(self, the_input):
        return the_input.auto_completion(["%s" % key for key in self.tasks], '')

    def command_done(self, arg="0"):
        try:
            id = int(arg)
        except:
            return
        if not id in self.tasks:
            return

        self.api.information('Task %s: %s [DONE]' % (id, self.tasks[id][1]), 'Info')
        del self.tasks[id]

    def command_tasks(self, arg, nocommand=None):
        if nocommand:
            s = 'The following tasks were loaded:\n'
        else:
            s = 'The following tasks are active:\n'
        for key in self.tasks:
            s += 'Task %s: %s every %s.\n' % (key, repr(self.tasks[key][1]),
                    common.parse_secs_to_str(self.tasks[key][0]))
        if s:
            self.api.information(s, 'Info')

    def remind(self, id=0):
        if not id in self.tasks:
            return
        self.api.information('Task %s: %s' % (id, self.tasks[id][1]), 'Info')
        if self.config.get('beep', '') == 'true':
            curses.beep()
        timed_event = timed_events.DelayedEvent(self.tasks[id][0], self.remind, id)
        self.api.add_timed_event(timed_event)

    def cleanup(self):
        if self.tasks:
            self.config.remove_section(self.__module__)
            self.config.add_section(self.__module__)
            for task in self.tasks:
                self.config.set('%s,%s' % (task, self.tasks[task][0]), self.tasks[task][1])
        self.config.write()