from __future__ import annotations
from typing import Callable, Any

import os
import time
import logging
import psutil
import subprocess

from newm.layout import Layout
from newm.helper import BacklightManager, WobRunner, PaCtl


logger = logging.getLogger(__name__)

debug_windows = False


def run_shell(command: str):
    """Run a shell command asynchronously
    If the shell command doesn’t already end with "&", add it.
    """
    if not command.endswith("&"):
        command = command + " &"
    os.system(command)


def command_is_running(command: str):
    for proc in psutil.process_iter():
        try:
            cmdline = proc.cmdline()
        except psutil.NoSuchProcess:
            continue
        if command in cmdline[0]:
            return True
    return False


def on_reconfigure():
    run_shell('notify-send newm "Reloaded config"')


def on_startup():
    run_shell("mpc stop")
    run_shell("dunst")
    run_shell("pactl load-module module-switch-on-connect")
    run_shell("xfce-polkit")
    run_shell("kdeconnectd")
    os.system(
        "systemctl --user import-environment DISPLAY \
        WAYLAND_DISPLAY XDG_CURRENT_DESKTOP"
    )
    os.system(
        "dbus-update-activation-environment && \
    dbus-update-activation-environment --systemd DISPLAY \
    WAYLAND_DISPLAY XDG_CURRENT_DESKTOP"
    )


background = {
    "path": os.environ["HOME"] + "/Pictures/Wallpapers/1561879941868.jpg",
    "anim": True,
}

pywm = {
    "xkb_layout": "fr",
    "xkb_variant": "bepo_afnor",
    "xkb_options": "caps:ctrl_modifier",
    "enable_xwayland": True,
    "natural_scroll": False,
    "focus_follows_mouse": True,
    "encourage_csd": False,
}

outputs = [
    {"name": "eDP-1"},
    {"name": "HDMI-A-1", "pos_x": -2560, "pos_y": 0, "width": 2560, "height": 1080},
]

wob_runner = WobRunner("wob -a bottom -M 100")
backlight_manager = BacklightManager(anim_time=1.0, bar_display=wob_runner)
kbdlight_manager = BacklightManager(
    args="--device='*::kbd_backlight'", anim_time=1.0, bar_display=wob_runner
)


def synchronous_update() -> None:
    backlight_manager.update()
    kbdlight_manager.update()


def rules(m_view):
    blur_apps = ("kitty", "wofi", "emacsclient", "emacs")
    float_apps = ("Rofi", "xfce-polkit")
    nonfloat_apps = ("discord",)
    if debug_windows:
        with open("/tmp/newm_windows.txt", "a", encoding="utf-8") as file:
            file.write(str(m_view.app_id))
            file.write("\n")
    m_rules = {}
    if m_view.app_id in blur_apps:
        m_rules.update({"blur": {"radius": 6, "passes": 2}})
    if m_view.app_id in float_apps:
        m_rules.update({"float": True})
    if m_view.app_id in nonfloat_apps:
        m_rules.update({"float": False})
    return m_rules


pactl = PaCtl(0, wob_runner)

focus = {
    "animate_on_change": True,
    "distance": 4,
    "width": 2,
    "color": "#5E81ACDD",
    "anim_time": 0.1,
}

view = {
    "corner_radius": 8,
    "padding": 10,
    "rules": rules,
}


energy = {"idle_times": [5 * 60, 30 * 60, 24 * 60 * 60]}


leader: str = "L-Spc "


def key_bindings(layout: Layout) -> list[tuple[str, Callable[[], Any]]]:
    return [
        ("L-Return", lambda: os.system("kitty &")),
        (leader + "a r", lambda: run_shell("wofi --show drun")),
        (leader + "a b", lambda: run_shell("firefox")),
        (leader + "a d", lambda: run_shell("discord")),
        (leader + "a e", lambda: run_shell("emacsclient -c")),
        (leader + "l", layout.ensure_locked),
        (leader + "w f", layout.toggle_fullscreen),
        (leader + "w v", layout.toggle_focused_view_floating),
        (leader + "w +", lambda: layout.basic_scale(1)),
        (leader + "w -", lambda: layout.basic_scale(-1)),
        ("L-o", layout.move_workspace),
        ("L-O", layout.move_workspace),
        (leader + "w c", lambda: layout.move(-1, 0)),
        (leader + "w t", lambda: layout.move(0, 1)),
        (leader + "w s", lambda: layout.move(0, -1)),
        (leader + "w r", lambda: layout.move(1, 0)),
        (leader + "w n", lambda: layout.move_in_stack(1)),
        ("L-Tab", lambda: layout.move_in_stack(1)),
        (leader + "w p", lambda: layout.move_in_stack(-1)),
        (leader + "w C", lambda: layout.move_focused_view(-1, 0)),
        (leader + "w T", lambda: layout.move_focused_view(0, 1)),
        (leader + "w S", lambda: layout.move_focused_view(0, -1)),
        (leader + "w R", lambda: layout.move_focused_view(1, 0)),
        (leader + "b d", layout.close_focused_view),
        (leader + "q l", lambda: layout.ensure_locked(dim=False)),
        (leader + "q q", layout.terminate),
        (leader + "u", layout.update_config),
        ("L-c", lambda: layout.move(-1, 0)),
        ("L-t", lambda: layout.move(0, 1)),
        ("L-s", lambda: layout.move(0, -1)),
        ("L-r", lambda: layout.move(1, 0)),
        ("L-plus", lambda: layout.basic_scale(-1)),
        ("L-minus", lambda: layout.basic_scale(1)),
        ("L-C", lambda: layout.move_focused_view(-1, 0)),
        ("L-T", lambda: layout.move_focused_view(0, 1)),
        ("L-S", lambda: layout.move_focused_view(0, -1)),
        ("L-R", lambda: layout.move_focused_view(1, 0)),
        (leader + "w r c", lambda: layout.resize_focused_view(-1, 0)),
        (leader + "w r t", lambda: layout.resize_focused_view(0, 1)),
        (leader + "w r s", lambda: layout.resize_focused_view(0, -1)),
        (leader + "w r r", lambda: layout.resize_focused_view(1, 0)),
        ("L-", lambda: layout.toggle_overview(only_active_workspace=True)),
        (
            "XF86MonBrightnessUp",
            lambda: backlight_manager.set(backlight_manager.get() + 0.1),
        ),
        (
            "XF86MonBrightnessDown",
            lambda: backlight_manager.set(backlight_manager.get() - 0.1),
        ),
        (
            "XF86KbdBrightnessUp",
            lambda: kbdlight_manager.set(kbdlight_manager.get() + 0.1),
        ),
        (
            "XF86KbdBrightnessDown",
            lambda: kbdlight_manager.set(kbdlight_manager.get() - 0.1),
        ),
        ("XF86AudioRaiseVolume", lambda: pactl.volume_adj(5)),
        ("XF86AudioLowerVolume", lambda: pactl.volume_adj(-5)),
        ("XF86AudioMute", pactl.mute),
        ("Print", lambda: run_shell("env XDG_CURRENT_DESKTOP=Sway flameshot gui")),
    ]


def battery_status() -> str:
    battery = psutil.sensors_battery()
    plugged = "+" if battery.power_plugged else "-"
    percent = format(battery.percent, ".1f")
    minutes = battery.secsleft // 60
    remaining = "{0:0>2}:{1:0>2}".format(minutes // 60, minutes % 60)
    return f"{percent}%{plugged} ({remaining})"


def unread_emails() -> str:
    unread = subprocess.run(
        ["mu", "find", "flag:unread AND (maildir:/Inbox OR maildir:/Junk)"],
        capture_output=True,
        text=True,
        check=True,
    ).stdout
    nbr_unread: int = len(str(unread).split("\n"))
    return f"Emails: {nbr_unread}"


def cpu_usage() -> str:
    cpu: str = format(psutil.cpu_percent(interval=None), ".1f")
    return f" {cpu}%"


def mem_usage() -> str:
    mem: str = format(psutil.virtual_memory().percent, ".1f")
    return f" {mem}%"


def right_text() -> str:
    return " | ".join([unread_emails(), cpu_usage(), mem_usage(), battery_status()])


def get_time() -> str:
    return time.strftime("%a %Y-%m-%d %X")


def center_text() -> str:
    return f"{get_time()}"


def max_width(strings: list[str]) -> int:
    r_max_width: int = 0
    for s in strings:
        if len(s) > r_max_width:
            r_max_width = len(s)
    return r_max_width


panels = {
    "lock": {
        "cmd": "kitty -e newm-panel-basic lock",
    },
    "launcher": {"cmd": "kitty -e newm-panel-basic launcher"},
    "top_bar": {
        "native": {
            "font": "JetBrainsMono Nerd Font",
            "enabled": True,
            "texts": lambda: [
                "",
                center_text(),
                right_text(),
            ],
        },
    },
    "bottom_bar": {
        "native": {
            "enabled": False,
            "texts": lambda: ["newm", "powered by pywm"],
            "color": (0.5, 0.5, 0.5, 0.1),
        }
    },
}

energy = {"idle_callback": backlight_manager.callback}