-- Standard awesome library
local gears = require("gears")
local awful = require("awful")
require("awful.autofocus")
-- Widget and layout library
local wibox = require("wibox")
-- Theme handling library
local beautiful = require("beautiful")
-- Notification library
local naughty = require("naughty")
local menubar = require("menubar")
local hotkeys_popup = require("awful.hotkeys_popup").widget
-- Enable hotkeys help widget for VIM and other apps
-- when client with a matching name is opened:
require("awful.hotkeys_popup.keys")

local todo = require("todo")

--  Error handling
-- Check if awesome encountered an error during startup and fell back to
-- another config (This code will only ever execute for the fallback config)
if awesome.startup_errors then
    naughty.notify({ preset = naughty.config.presets.critical,
                     title = "Oops, there were errors during startup!",
                     text = awesome.startup_errors })
end

-- Handle runtime errors after startup
do
    local in_error = false
    awesome.connect_signal("debug::error", function (err)
        -- Make sure we don't go into an endless error loop
        if in_error then return end
        in_error = true

        naughty.notify({ preset = naughty.config.presets.critical,
                         title = "Oops, an error happened!",
                         text = tostring(err) })
        in_error = false
    end)
end
-- }}}

--  Variable definitions
-- Load theme
beautiful.init(awful.util.getdir("config") .. "/theme.lua")

-- This is used later as the default terminal and editor to run.
terminal = "termite"
editor = os.getenv("EDITOR") or "vim"
editor_cmd = terminal .. " -e " .. editor

-- Default modkey.
-- Usually, Mod4 is the key with a logo between Control and Alt.
-- If you do not like this or do not have such a key,
-- I suggest you to remap Mod4 to another key using xmodmap or other tools.
-- However, you can use another modifier like Mod1, but it may interact with others.
modkey = "Mod4"

-- Table of layouts to cover with awful.layout.inc, order matters.
awful.layout.layouts = {
    awful.layout.suit.tile,
    awful.layout.suit.tile.left,
    awful.layout.suit.tile.bottom,
    awful.layout.suit.tile.top,
    awful.layout.suit.fair,
    awful.layout.suit.fair.horizontal,
    awful.layout.suit.spiral,
    awful.layout.suit.spiral.dwindle,
    awful.layout.suit.max,
    -- awful.layout.suit.max.fullscreen,
    awful.layout.suit.magnifier,
    -- awful.layout.suit.corner.nw,
    -- awful.layout.suit.floating,
    -- awful.layout.suit.corner.ne,
    -- awful.layout.suit.corner.sw,
    -- awful.layout.suit.corner.se,
}
-- }}}

--  Helper functions
local function client_menu_toggle_fn()
    local instance = nil

    return function ()
        if instance and instance.wibox.visible then
            instance:hide()
            instance = nil
        else
            instance = awful.menu.clients({ theme = { width = 250 } })
        end
    end
end
-- }}}

--  Menu
-- Create a launcher widget and a main menu
myawesomemenu = {
   { "hotkeys", function() return false, hotkeys_popup.show_help end},
   { "manual", terminal .. " -e man awesome" },
   { "edit config", editor_cmd .. " " .. awesome.conffile },
   { "restart", awesome.restart },
   { "quit", function() awesome.quit() end}
}

mymainmenu = awful.menu({ items = { { "awesome", myawesomemenu, beautiful.awesome_icon },
                                    { "open terminal", terminal }
                                  }
                        })

mylauncher = awful.widget.launcher({ image = beautiful.awesome_icon,
                                     menu = mymainmenu })

-- Menubar configuration
menubar.utils.terminal = terminal -- Set the terminal for applications that require it
-- }}}

-- Keyboard map indicator and switcher
mykeyboardlayout = awful.widget.keyboardlayout()

--  Wibar
-- Create a textclock widget
mytextclock = wibox.widget.textclock()

-- Add the GTD functionality
todo({}):attach(mytextclock)

-- Create a wibox for each screen and add it
local taglist_buttons = gears.table.join(
                    awful.button({ }, 1, function(t) t:view_only() end),
                    awful.button({ modkey }, 1, function(t)
                                              if client.focus then
                                                  client.focus:move_to_tag(t)
                                              end
                                          end),
                    awful.button({ }, 3, awful.tag.viewtoggle),
                    awful.button({ modkey }, 3, function(t)
                                              if client.focus then
                                                  client.focus:toggle_tag(t)
                                              end
                                          end),
                    awful.button({ }, 4, function(t) awful.tag.viewprev(t.screen) end),
                    awful.button({ }, 5, function(t) awful.tag.viewnext(t.screen) end)
                )

local tasklist_buttons = gears.table.join(
                     awful.button({ }, 1, function (c)
                                              if c == client.focus then
                                                  c.minimized = true
                                              else
                                                  -- Without this, the following
                                                  -- :isvisible() makes no sense
                                                  c.minimized = false
                                                  if not c:isvisible() and c.first_tag then
                                                      c.first_tag:view_only()
                                                  end
                                                  -- This will also un-minimize
                                                  -- the client, if needed
                                                  client.focus = c
                                                  c:raise()
                                              end
                                          end),
                     awful.button({ }, 3, client_menu_toggle_fn()),
                     awful.button({ }, 4, function ()
                                              awful.client.focus.byidx(-1)
                                          end),
                     awful.button({ }, 5, function ()
                                              awful.client.focus.byidx(1)
                                          end))

awful.tag.add("work",    { screen = screen.primary, layout = awful.layout.suit.tile })
awful.tag.add("social",  { screen = screen.primary, layout = awful.layout.suit.max })
awful.tag.add("web",     { screen = screen.primary, layout = awful.layout.suit.max })
awful.tag.add("email",   { screen = screen.primary, layout = awful.layout.suit.magnifier })
awful.tag.add("fun",     { screen = screen.primary, layout = awful.layout.suit.max })
awful.tag.add("media",   { screen = screen.primary, layout = awful.layout.suit.max })
awful.tag.add("vms",     { screen = screen.primary, layout = awful.layout.suit.tile })
awful.tag.add("scratch", { screen = screen.primary, layout = awful.layout.suit.tile })

sharedtaglist = screen.primary.tags

awful.screen.connect_for_each_screen(function(s)
    -- Create an imagebox widget which will contain an icon indicating which layout we're using.
    -- We need one layoutbox per screen.
    s.mylayoutbox = awful.widget.layoutbox(s)
    s.mylayoutbox:buttons(gears.table.join(
                           awful.button({ }, 1, function () awful.layout.inc( 1) end),
                           awful.button({ }, 3, function () awful.layout.inc(-1) end),
                           awful.button({ }, 4, function () awful.layout.inc(-1) end),
                           awful.button({ }, 5, function () awful.layout.inc( 1) end)))

    -- Create a taglist widget
    s.mytaglist = awful.widget.taglist(s, awful.widget.taglist.filter.all, taglist_buttons)

    -- Create a tasklist widget
    s.mytasklist = awful.widget.tasklist(s, awful.widget.tasklist.filter.currenttags, tasklist_buttons)

    -- Create the wibar for status information
    s.mywibox_info = awful.wibar({ position = "top", screen = s })

    -- Add widgets to the wibox
    s.mywibox_info:setup {
        layout = wibox.layout.align.horizontal,
        { -- Left widgets
            layout = wibox.layout.fixed.horizontal,
            mylauncher,
            s.mytaglist,
        },
        {
            layout = wibox.layout.fixed.horizontal
        },
        { -- Right widgets
            layout = wibox.layout.fixed.horizontal,
            -- mykeyboardlayout,
            wibox.widget.systray(),
            mytextclock,
            s.mylayoutbox,
        },
    }

    -- Create a wibar for the task list
    s.mywibox_tasks = awful.wibar({ position = "bottom", screen = s })

    s.mywibox_tasks:setup {
        layout = wibox.layout.align.horizontal,
        { layout = wibox.layout.fixed.horizontal, },
        s.mytasklist,
        { layout = wibox.layout.fixed.horizontal, },
    }

end)
-- }}}

--  Mouse bindings
root.buttons(gears.table.join(
    awful.button({ }, 3, function () mymainmenu:toggle() end),
    awful.button({ }, 4, awful.tag.viewprev),
    awful.button({ }, 5, awful.tag.viewnext)
))
-- }}}

--  Key bindings
globalkeys = gears.table.join(
    awful.key({ modkey,           }, "s",      hotkeys_popup.show_help,
              {description="show help", group="awesome"}),
    awful.key({ modkey,           }, "Left",   awful.tag.viewprev,
              {description = "view previous", group = "tag"}),
    awful.key({ modkey,           }, "Right",  awful.tag.viewnext,
              {description = "view next", group = "tag"}),
    awful.key({ modkey,           }, "Escape", awful.tag.history.restore,
              {description = "go back", group = "tag"}),

    awful.key({ modkey,           }, "j",
        function ()
            awful.client.focus.byidx( 1)
        end,
        {description = "focus next by index", group = "client"}
    ),
    awful.key({ modkey,           }, "k",
        function ()
            awful.client.focus.byidx(-1)
        end,
        {description = "focus previous by index", group = "client"}
    ),
    awful.key({ modkey,           }, "w", function () mymainmenu:show() end,
              {description = "show main menu", group = "awesome"}),

    -- Layout manipulation
    awful.key({ modkey, "Shift"   }, "j", function () awful.client.swap.byidx(  1)    end,
              {description = "swap with next client by index", group = "client"}),
    awful.key({ modkey, "Shift"   }, "k", function () awful.client.swap.byidx( -1)    end,
              {description = "swap with previous client by index", group = "client"}),
    awful.key({ modkey, "Control" }, "j", function () awful.screen.focus_bydirection("right") end,
              {description = "focus the next screen", group = "screen"}),
    awful.key({ modkey, "Control" }, "k", function () awful.screen.focus_bydirection("left") end,
              {description = "focus the previous screen", group = "screen"}),
    --awful.key({ modkey,           }, "u", awful.client.urgent.jumpto,
    --          {description = "jump to urgent client", group = "client"}),
    awful.key({ modkey,           }, "Tab",
        function ()
            awful.client.focus.history.previous()
            if client.focus then
                client.focus:raise()
            end
        end,
        {description = "go back", group = "client"}),

    -- Standard program
    awful.key({ modkey,           }, "Return", function () awful.spawn(terminal) end,
              {description = "open a terminal", group = "launcher"}),
    awful.key({ modkey, "Shift"   }, "r", awesome.restart,
              {description = "reload awesome", group = "awesome"}),
    awful.key({ modkey, "Shift"   }, "x", awesome.quit,
              {description = "quit awesome", group = "awesome"}),

    awful.key({ modkey,           }, "l",     function () awful.tag.incmwfact( 0.05)          end,
              {description = "increase master width factor", group = "layout"}),
    awful.key({ modkey,           }, "h",     function () awful.tag.incmwfact(-0.05)          end,
              {description = "decrease master width factor", group = "layout"}),
    awful.key({ modkey, "Shift"   }, "h",     function () awful.tag.incnmaster( 1, nil, true) end,
              {description = "increase the number of master clients", group = "layout"}),
    awful.key({ modkey, "Shift"   }, "l",     function () awful.tag.incnmaster(-1, nil, true) end,
              {description = "decrease the number of master clients", group = "layout"}),
    awful.key({ modkey, "Control" }, "h",     function () awful.tag.incncol( 1, nil, true)    end,
              {description = "increase the number of columns", group = "layout"}),
    awful.key({ modkey, "Control" }, "l",     function () awful.tag.incncol(-1, nil, true)    end,
              {description = "decrease the number of columns", group = "layout"}),
    awful.key({ modkey,           }, "space", function () awful.layout.inc( 1)                end,
              {description = "select next", group = "layout"}),
    awful.key({ modkey, "Shift"   }, "space", function () awful.layout.inc(-1)                end,
              {description = "select previous", group = "layout"}),

    awful.key({ modkey, "Control" }, "n",
              function ()
                  local c = awful.client.restore()
                  -- Focus restored client
                  if c then
                      client.focus = c
                      c:raise()
                  end
              end,
              {description = "restore minimized", group = "client"})
)

clientkeys = gears.table.join(
    awful.key({ modkey,           }, "f",
        function (c)
            c.fullscreen = not c.fullscreen
            c:raise()
        end,
        {description = "toggle fullscreen", group = "client"}),
    awful.key({ modkey,           }, "x",      function (c) c:kill()                         end,
              {description = "close", group = "client"}),
    awful.key({ modkey, "Control" }, "space",  awful.client.floating.toggle                     ,
              {description = "toggle floating", group = "client"}),
    awful.key({ modkey, "Shift"   }, "Return", function (c) c:swap(awful.client.getmaster()) end,
              {description = "move to master", group = "client"}),
    awful.key({ modkey,           }, "o",      function (c) c:move_to_screen()               end,
              {description = "move to screen", group = "client"}),
    awful.key({ modkey,           }, "t",      function (c) c.ontop = not c.ontop            end,
              {description = "toggle keep on top", group = "client"}),
    awful.key({ modkey,           }, "n",
        function (c)
            -- The client currently has the input focus, so it cannot be
            -- minimized, since minimized clients can't have the focus.
            c.minimized = true
        end ,
        {description = "minimize", group = "client"}),
    awful.key({ modkey,           }, "m",
        function (c)
            c.maximized = not c.maximized
            c:raise()
        end ,
        {description = "(un)maximize", group = "client"}),
    awful.key({ modkey, "Control" }, "m",
        function (c)
            c.maximized_vertical = not c.maximized_vertical
            c:raise()
        end ,
        {description = "(un)maximize vertically", group = "client"}),
    awful.key({ modkey, "Shift"   }, "m",
        function (c)
            c.maximized_horizontal = not c.maximized_horizontal
            c:raise()
        end ,
        {description = "(un)maximize horizontally", group = "client"})
)

-- Bind all key numbers to tags.
-- Be careful: we use keycodes to make it work on any keyboard layout.
-- This should map on the top row of your keyboard, usually 1 to 9.
for i = 1, 9 do
    globalkeys = gears.table.join(globalkeys,
        -- View tag only.
        awful.key({ modkey }, "#" .. i + 10,
                  function ()
                        local screen = awful.screen.focused()
                        local tag = sharedtaglist[i]
                        if tag then
                           awful.tag.setscreen(screen, tag)
                           tag:view_only()
                        end
                  end,
                  {description = "view tag #"..i, group = "tag"}),
        -- Toggle tag display.
        awful.key({ modkey, "Control" }, "#" .. i + 10,
                  function ()
                      local tag = sharedtaglist[i]
                      if tag then
                         awful.tag.viewtoggle(tag)
                      end
                  end,
                  {description = "toggle tag #" .. i, group = "tag"}),
        -- Move client to tag.
        awful.key({ modkey, "Shift" }, "#" .. i + 10,
                  function ()
                      if client.focus then
                          local tag = sharedtaglist[i]
                          if tag then
                              client.focus:move_to_tag(tag)
                          end
                     end
                  end,
                  {description = "move focused client to tag #"..i, group = "tag"}),
        -- Toggle tag on focused client.
        awful.key({ modkey, "Control", "Shift" }, "#" .. i + 10,
                  function ()
                      if client.focus then
                          local tag = sharedtaglist[i]
                          if tag then
                              client.focus:toggle_tag(tag)
                          end
                      end
                  end,
                  {description = "toggle focused client on tag #" .. i, group = "tag"})
    )
end

clientbuttons = gears.table.join(
    awful.button({ }, 1, function (c) client.focus = c; c:raise() end),
    awful.button({ modkey }, 1, awful.mouse.client.move),
    awful.button({ modkey }, 3, awful.mouse.client.resize))

-- Set keys
root.keys(globalkeys)
-- }}}

--  Rules
-- Rules to apply to new clients (through the "manage" signal).
awful.rules.rules = {
  -- All clients will match this rule.
  {
    rule = { },
    properties = {
      border_width = beautiful.border_width,
      border_color = beautiful.border_normal,
      focus = awful.client.focus.filter,
      raise = true,
      keys = clientkeys,
      buttons = clientbuttons,
      screen = awful.screen.preferred,
      placement = awful.placement.no_overlap+awful.placement.no_offscreen
    }
  },

  -- Floating clients.

  {
    rule_any = {
      instance = {
        "DTA",  -- Firefox addon DownThemAll.
        "copyq",  -- Includes session name in class.
      },
      class = {
        "Arandr",
        "Gpick",
        "Kruler",
        "MessageWin",  -- kalarm.
        "Sxiv",
        "Wpa_gui",
        "pinentry",
        "veromix",
        "xtightvncviewer"
      },
      name = {
        "Event Tester",  -- xev.
      },
      role = {
        "AlarmWindow",  -- Thunderbird's calendar.
        "pop-up",       -- e.g. Google Chrome's (detached) Developer Tools.
      }
    },
    properties = {
      floating = true
    }
  },

  -- Add titlebars to normal clients and dialogs

  -- {
  --   rule_any = {
  --     type = {
  --       "normal",
  --       "dialog"
  --     }
  --   },
  --   properties = {
  --     titlebars_enabled = true
  --   }
  -- },

  -- Application-specific rules

  -- www-client/chromium
  {
    rule_any = {
      class = {
        "chromium-browser-chromium",
        "Chromium-browser-chromium",
      }
    },
    properties = {
      tag = sharedtaglist[3]
    },
  },

  -- www-client/firefox
  {
    rule_any = {
      class = {
        "Navigator",
        "Firefox Developer Edition"
      }
    },
    properties = {
      tag = sharedtaglist[3]
    },
  },

  -- net-im/signal-desktop
  {
    rule_any = {
      class = {
        "Signal",
      }
    },
    properties = {
      tag = sharedtaglist[2]
    },
  },

  -- media-video/mpv
  {
    rule_any = {
      class = {
        "gl",
        "mpv",
      }
    },
    properties = {
      tag = sharedtaglist[6]
    },
  },

  { properties = { tag = sharedtaglist[4] }, rule_any = { class = { "claws-mail", "Claws-mail" } } },
  { properties = { tag = sharedtaglist[5] }, rule_any = { name = { "Blizzard Battle.net" } } },
  { properties = { tag = sharedtaglist[5] }, rule_any = { name = { "World of Warcraft" } } },
  { properties = { tag = sharedtaglist[5] }, rule_any = { name = { "Guild Wars" } } },

  -- Set Firefox to always map on the tag named "2" on screen 1.
  -- { rule = { class = "Firefox" },
  --   properties = { screen = 1, tag = "2" } },

  -- Jellyfin
  {
    rule = {
      class = "jellyfin",
      -- class = {,
      --   "Chromium-browser-chromium",
      -- },
    },
    properties = {
      tag = sharedtaglist[6],
      maximized = true,
    },
  },

  -- Kodi
  {
    rule = {
      class = "Kodi",
      -- class = {,
      --   "Chromium-browser-chromium",
      -- },
    },
    properties = {
      tag = sharedtaglist[6],
      maximized = true,
    },
  },

  -- World of Warcraft
  {
    rule_any = {
      class = {
        "wow.exe",
      },
    },
    properties = {
      tag = sharedtaglist[5],
      fullscreen = true,
    },
  }
}
-- }}}

--  Signals
-- Signal function to execute when a new client appears.
client.connect_signal("manage", function (c)
    -- Set the windows at the slave,
    -- i.e. put it at the end of others instead of setting it master.
    -- if not awesome.startup then awful.client.setslave(c) end

    if awesome.startup and
      not c.size_hints.user_position
      and not c.size_hints.program_position then
        -- Prevent clients from being unreachable after screen count changes.
        awful.placement.no_offscreen(c)
    end
end)

-- Add a titlebar if titlebars_enabled is set to true in the rules.
client.connect_signal("request::titlebars", function(c)
    -- buttons for the titlebar
    local buttons = gears.table.join(
        awful.button({ }, 1, function()
            client.focus = c
            c:raise()
            awful.mouse.client.move(c)
        end),
        awful.button({ }, 3, function()
            client.focus = c
            c:raise()
            awful.mouse.client.resize(c)
        end)
    )

    awful.titlebar(c) : setup {
        { -- Left
            awful.titlebar.widget.iconwidget(c),
            buttons = buttons,
            layout  = wibox.layout.fixed.horizontal
        },
        { -- Middle
            { -- Title
                align  = "center",
                widget = awful.titlebar.widget.titlewidget(c)
            },
            buttons = buttons,
            layout  = wibox.layout.flex.horizontal
        },
        { -- Right
            awful.titlebar.widget.floatingbutton (c),
            awful.titlebar.widget.maximizedbutton(c),
            awful.titlebar.widget.stickybutton   (c),
            awful.titlebar.widget.ontopbutton    (c),
            awful.titlebar.widget.closebutton    (c),
            layout = wibox.layout.fixed.horizontal()
        },
        layout = wibox.layout.align.horizontal
    }
end)

-- Enable sloppy focus, so that focus follows mouse.
client.connect_signal("mouse::enter", function(c)
    if awful.layout.get(c.screen) ~= awful.layout.suit.magnifier
        and awful.client.focus.filter(c) then
        client.focus = c
    end
end)

client.connect_signal("focus", function(c) c.border_color = beautiful.border_focus end)
client.connect_signal("unfocus", function(c) c.border_color = beautiful.border_normal end)
-- }}}