# Copyright (C) 2015 Tom Tromey <tom@tromey.com>

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Notifications

import gdb
import gui.params
import gui.startup
import time

from gi.repository import Notify
from gui.startup import in_gtk_thread, in_gdb_thread

_initialized = False

_last_time = None

@in_gtk_thread
def _show_notification(title, content):
    global _initialized
    if not _initialized:
        _initialized = True
        Notify.init("gdb")
    n = Notify.Notification.new(title, content)
    n.show()

@in_gdb_thread
def _on_stop(event):
    global _last_time
    t = _last_time
    _last_time = None

    if (t is None
        or not gui.params.stop_notification.value
        or time.clock() - t < gui.params.stop_notification_seconds.value):
        return

    if isinstance(event, gdb.ExitedEvent):
        title = 'gdb - inferior exited'
        if hasattr(event, 'exit_code'):
            content = 'inferior exited with code ' + str(event.exit_code)
        else:
            content = 'inferior exited, code unavailable'
    elif isinstance(event, gdb.BreakpointEvent):
        title = 'gdb - inferior stopped'
        content = ('inferior stopped at breakpoint '
                   + str(event.breakpoints[0].number))
    elif isinstance(event, gdb.SignalEvent):
        title = 'gdb - inferior stopped'
        content = 'inferior stopped with signal: ' + event.stop_signal
    else:
        title = 'gdb - inferior stopped'
        content = 'inferior stopped, reason unknown'

    gui.startup.send_to_gtk(lambda: _show_notification(title, content))

@in_gdb_thread
def _on_cont(event):
    global _last_time
    _last_time = time.clock()

gdb.events.stop.connect(_on_stop)
gdb.events.cont.connect(_on_cont)
gdb.events.exited.connect(_on_stop)