-- {{{ License
--
-- Awesome configuration, using awesome 4.3-7 on Debian GNU/Linux
--   * Adrian C. <anrxc@sysphere.org>

-- Screenshot: http://sysphere.org/gallery/snapshots

-- This work is licensed under the Creative Commons Attribution-Share
-- Alike License: http://creativecommons.org/licenses/by-sa/3.0/
-- }}}


-- {{{ Libraries
pcall(require, "luarocks.loader")
-- Standard awesome library
local gears = require("gears")
local awful = require("awful")
require("awful.autofocus")
-- Widget and layout libraries
local wibox   = require("wibox")
local vicious = require("vicious")
-- Theme handling library
local beautiful = require("beautiful")
-- Notification library
--local naughty = require("naughty")
--local menubar = require("menubar")
-- }}}

-- {{{ Variable definitions
terminal = "/usr/bin/urxvt"
editor   = "emacs"
editor_cmd = terminal .. " -e emacs -nw"
modkey  = "Mod4"
altkey  = "Mod1"
home    = os.getenv("HOME")
exec    = awful.spawn
scount  = screen.count()

-- Beautiful theme
beautiful.init(gears.filesystem.get_themes_dir() .. "zenburn/theme.lua")

-- Window management layouts
awful.layout.layouts = {
    awful.layout.suit.floating,            -- 1
    awful.layout.suit.tile,                -- 2
    awful.layout.suit.tile.left,           -- 3
    awful.layout.suit.tile.bottom,         -- 4
    awful.layout.suit.tile.top,            -- 5
    awful.layout.suit.fair,                -- 6
    awful.layout.suit.fair.horizontal,     -- 7
    awful.layout.suit.spiral,              -- 8
    awful.layout.suit.spiral.dwindle,      -- 9
    awful.layout.suit.max,                 -- 10
    awful.layout.suit.max.fullscreen,      -- 11
    awful.layout.suit.magnifier,           -- 12
    awful.layout.suit.corner.nw,           -- 13
    -- awful.layout.suit.corner.ne,
    -- awful.layout.suit.corner.sw,
    -- awful.layout.suit.corner.se,
}
-- }}}

-- {{{ Menu
--menubar.utils.terminal = terminal
-- }}}


-- {{{ Wibar
--
-- {{{ Reusable separator
myseparator = wibox.widget.imagebox(home .. "/.config/awesome/icons/separator.png", false)
-- }}}

-- {{{ CPU temperature
mycpuicon = wibox.widget.imagebox(home .. "/.config/awesome/icons/cpu.png", false)
-- Initialize widget
mycpuwidget = wibox.widget.textbox()
-- Register widget
vicious.register(mycpuwidget, vicious.widgets.thermal, "$1C", 19, "thermal_zone0")
-- }}}

-- {{{ Battery state
mybaticon = wibox.widget.imagebox(home .. "/.config/awesome/icons/bat.png", false)
-- Initialize widget
mybatwidget = wibox.widget.textbox()
-- Register widget
vicious.register(mybatwidget, vicious.widgets.bat, "$1$2%", 61, "BAT0")
-- }}}

-- {{{ Network usage
mydnicon = wibox.widget.imagebox(home .. "/.config/awesome/icons/down.png", false)
myupicon = wibox.widget.imagebox(home .. "/.config/awesome/icons/up.png", false)
-- Initialize widget
mynetwidget = wibox.widget.textbox()
-- Register widget
vicious.register(mynetwidget, vicious.widgets.net, '<span color="'
  .. beautiful.fg_netdn_widget ..'">${eth0 down_kb}</span> <span color="'
  .. beautiful.fg_netup_widget ..'">${eth0 up_kb}</span>', 3)
-- }}}

-- {{{ Volume level
myvolicon = wibox.widget.imagebox(home .. "/.config/awesome/icons/vol.png", false)
-- Initialize widget
myvolwidget = wibox.widget.textbox()
-- Enable caching
vicious.cache(vicious.widgets.volume)
-- Register widget
vicious.register(myvolwidget, vicious.widgets.volume, "$1%", 2, "Master")
-- Register buttons
myvolwidget:buttons(gears.table.join(
   awful.button({ }, 1, function () exec("urxvt -T Alsamixer -e alsamixer") end),
   awful.button({ }, 4, function () exec("amixer -q -c 0 set Master 1dB+", false) end),
   awful.button({ }, 5, function () exec("amixer -q -c 0 set Master 1dB-", false) end)
))
-- }}}

-- {{{ Date and time
mydateicon = wibox.widget.imagebox(home .. "/.config/awesome/icons/time.png", false)
-- Initialize widgets
mydatewidget   = wibox.widget.textbox()
mydatestwidget = wibox.widget.textbox()
-- Register widgets
vicious.register(mydatewidget,   vicious.widgets.date, "%R", 61)         -- Amsterdam
vicious.register(mydatestwidget, vicious.widgets.date, "%R", 61, -21600) -- New York
-- Register buttons
mydatewidget:buttons(gears.table.join(
   -- GTK3 calendar applet with holidays: https://sysphere.org/~anrxc/local/sources/pylendar.py
   awful.button({ }, 1, function () exec(home .. "/bin/pylendar.py", false) end)
))
mydatestwidget:buttons(gears.table.join(
   awful.button({ }, 1, function () exec(home .. "/bin/pylendar.py", false) end)
))
-- }}}

-- {{{ Flexible widget
myflexeidget = wibox.widget.textbox()
-- }}}


-- {{{ Wibox initialisation
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.viewnext(t.screen) end),
                    awful.button({ }, 5, function(t) awful.tag.viewprev(t.screen) end)
                )

local tasklist_buttons = gears.table.join(
                     awful.button({ }, 1, function (c)
                                              if c == client.focus then
                                                  c.minimized = true
                                              else
                                                  c:emit_signal(
                                                      "request::activate",
                                                      "tasklist",
                                                      {raise = true}
                                                  )
                                              end
                                          end),
                     awful.button({ }, 3, function()
                                              awful.menu.client_list({ theme = { width = 250 } })
                                          end),
                     awful.button({ }, 4, function ()
                                              awful.client.focus.byidx(1)
                                          end),
                     awful.button({ }, 5, function ()
                                              awful.client.focus.byidx(-1)
                                          end))
-- Wallpaper signal handler
local function set_wallpaper(s)
    if beautiful.wallpaper then
        local wallpaper = beautiful.wallpaper
        if type(wallpaper) == "function" then
            wallpaper = wallpaper(s)
        end
        gears.wallpaper.maximized(wallpaper, s, true)
    end
end
screen.connect_signal("property::geometry", set_wallpaper)

awful.screen.connect_for_each_screen(function(s)
    set_wallpaper(s)

    -- Tags
    local names    = { "term", "emacs", "web", "mail", "im", "6", "7", "ssh", "media" }
    local ly       = awful.layout.suit
    local llayouts = { ly.tile, ly.tile, ly.tile, ly.magnifier, ly.tile, ly.floating, ly.floating, ly.fair, ly.floating }
    awful.tag(names, s, llayouts)

    -- Create a promptbox
    s.mypromptbox = awful.widget.prompt()

    -- Create a layoutbox
    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 the taglist
    s.mytaglist = awful.widget.taglist {
        screen  = s,
        filter  = awful.widget.taglist.filter.all,
        buttons = taglist_buttons
    }

    -- Create the tasklist
    --s.mytasklist = awful.widget.tasklist {
    --    screen  = s,
    --    filter  = awful.widget.tasklist.filter.currenttags,
    --    buttons = tasklist_buttons
    --}

    -- Create the wibox
    --  * theme font "Terminus 8" or "ProFont 8" for this widget bar height
    s.mywibox = awful.wibar({ position = "top", screen = s, height = 12 })

    -- Add widgets to the wibox
    s.mywibox:setup {
        layout = wibox.layout.align.horizontal,
        { -- Left widgets
            layout = wibox.layout.fixed.horizontal,
            s.mytaglist,
            s.mylayoutbox,
            myseparator,
            s.mypromptbox,
        },
        { -- Middle widget
            layout = wibox.layout.flex.horizontal,
            myflexwidget,
        },
        --s.mytasklist,
        { -- Right widgets
            layout = wibox.layout.fixed.horizontal,
            myseparator,
            mycpuicon,
            mycpuwidget,
            myseparator,
            mybaticon,
            mybatwidget,
            myseparator,
            mydnicon,
            mynetwidget,
            myupicon,
            myseparator,
            myvolicon,
            myvolwidget,
            myseparator,
            mydateicon,
            mydatestwidget,
            myseparator,
            mydateicon,
            mydatewidget,
            myseparator,
            s == scount and wibox.widget.systray() or nil,
        },
    }
end)
-- }}}
-- }}}

-- {{{ Mouse bindings
root.buttons(gears.table.join(
    awful.button({ }, 4, awful.tag.viewnext),
    awful.button({ }, 5, awful.tag.viewprev)
))
-- }}}

-- {{{ Key bindings
globalkeys = gears.table.join(
    -- Tag browsing
    awful.key({ altkey,           }, "p",   awful.tag.viewprev,
              {description = "view previous", group = "tag"}),
    awful.key({ altkey,           }, "n",  awful.tag.viewnext,
              {description = "view next", group = "tag"}),
    awful.key({ altkey,           }, "Tab", awful.tag.history.restore,
              {description = "go back", group = "tag"}),

    -- Focus controls
    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, "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 }, "p", function () awful.screen.focus_relative( 1) end,
              {description = "focus the next screen", group = "screen"}),
    awful.key({ modkey, "Control" }, "k", function () awful.screen.focus_relative(-1) 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"}),

    -- Multimedia keys
    awful.key({}, "#151",                 function () awful.spawn("xdg-screensaver lock") end,
              {description = "lock the screen", group = "launcher"}),
    awful.key({}, "#198",                 function () awful.spawn("amixer set Capture toggle") end,
              {description = "mute the microphone", group = "launcher"}),
    awful.key({}, "#233",                 function () awful.spawn(home .. "/bin/plight.py -a -c plus", false) end,
              {description = "increase brightness", group = "launcher"}),
    awful.key({}, "#232",                 function () awful.spawn(home .. "/bin/plight.py -a -c minus", false) end,
              {description = "decrease brightness", group = "launcher"}),

    -- Applications
    awful.key({ altkey,           }, "F1", function () awful.spawn(terminal) end,
              {description = "open a terminal", group = "launcher"}),
    awful.key({ modkey,           }, "w",  function () awful.spawn("firefox") end,
              {description = "open a browser", group = "launcher"}),
    awful.key({ modkey,           }, "n",  function () awful.spawn("urxvt -T Terminal1 -e terminal1-expect-script") end,
              {description = "open ssh terminal1", group = "launcher"}),
    awful.key({ modkey,           }, "v",  function () awful.spawn("urxvt -T Terminal2 -e ssh terminal2") end,
              {description = "open ssh terminal2", group = "launcher"}),
    awful.key({ modkey,           }, "a",  function () awful.spawn("urxvt -T Alpine -e alpine") end,
              {description = "open e-mail client", group = "launcher"}),
    awful.key({ modkey,           }, "e",  function () awful.spawn("emacs") end,
              {description = "open emacs", group = "launcher"}),

    -- Awesome controls
    awful.key({ modkey, "Shift" },   "r",  awesome.restart,
              {description = "reload awesome", group = "awesome"}),
    awful.key({ modkey, "Shift"   }, "q",  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()
                  if c then
                    c:emit_signal(
                        "request::activate", "key.unminimize", {raise = true}
                    )
                  end
              end,
              {description = "restore minimized", group = "client"}),

    -- Prompt menus
    awful.key({ altkey },            "F2",     function () awful.screen.focused().mypromptbox:run() end,
              {description = "run prompt", group = "launcher"}),

    awful.key({ altkey }, "F5",
              function ()
                  awful.prompt.run {
                    prompt       = "Run Lua code: ",
                    textbox      = awful.screen.focused().mypromptbox.widget,
                    exe_callback = awful.util.eval,
                    history_path = awful.util.get_cache_dir() .. "/history_eval"
                  }
              end,
              {description = "lua execute prompt", group = "awesome"})
    -- Menubar
    --awful.key({ modkey,  "Control" }, "j", function() menubar.show() end,
    --          {description = "show the menubar", group = "launcher"})
)

-- {{{ Client manipulation
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,   }, "c",      function (c) c:kill()                            end,
              {description = "kill client", group = "client"}),
    awful.key({ modkey, "Shift" },   "f",  awful.client.floating.toggle                    ,
              {description = "toggle floating", group = "client"}),
    awful.key({ modkey, "Shift" },   "m", function (c) c:swap(awful.client.getmaster()) end,
              {description = "move to master", group = "client"}),
    awful.key({ modkey, "Control" }, "r", function (c) c:redraw() end,
              {description = "redraw client", 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,           }, "Next",      function (c) awful.client.moveresize( 20,  20, -40, -40) end,
              {description = "resize client PgUP", group = "client"}),
    awful.key({ modkey,           }, "Prior",     function (c) awful.client.moveresize(-20, -20,  40,  40) end,
              {description = "resize client PgDN", group = "client"}),
    awful.key({ modkey,           }, "Down",      function (c) awful.client.moveresize(0,    20,   0,   0) end,
              {description = "move client down",  group = "client"}),
    awful.key({ modkey,           }, "Up",        function (c) awful.client.moveresize(0,   -20,   0,   0) end,
              {description = "move client up",    group = "client"}),
    awful.key({ modkey,           }, "Left",      function (c) awful.client.moveresize(-20,   0,   0,   0) end,
              {description = "move client left",  group = "client"}),
    awful.key({ modkey,           }, "Right",     function (c) awful.client.moveresize(20,    0,   0,   0) end,
              {description = "move client right", group = "client"}),

    awful.key({ modkey, "Shift"   }, "t",         function (c) awful.titlebar.toggle(c) end,
              {description = "remove client titlebar", 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"})
)
-- }}}

-- {{{ Tag controls
for i = 1, 9 do
    globalkeys = gears.table.join(globalkeys,
        awful.key({ modkey }, "#" .. i + 9,
                  function ()
                        local screen = awful.screen.focused()
                        local tag = screen.tags[i]
                        if tag then
                           tag:view_only()
                        end
                  end,
                  {description = "view tag #"..i, group = "tag"}),
        awful.key({ modkey, "Control" }, "#" .. i + 9,
                  function ()
                      local screen = awful.screen.focused()
                      local tag = screen.tags[i]
                      if tag then
                         awful.tag.viewtoggle(tag)
                      end
                  end,
                  {description = "toggle tag #" .. i, group = "tag"}),
        awful.key({ modkey, "Shift" }, "#" .. i + 9,
                  function ()
                      if client.focus then
                          local tag = client.focus.screen.tags[i]
                          if tag then
                              client.focus:move_to_tag(tag)
                          end
                     end
                  end,
                  {description = "move focused client to tag #"..i, group = "tag"}),
        awful.key({ modkey, "Control", "Shift" }, "#" .. i + 9,
                  function ()
                      if client.focus then
                          local tag = client.focus.screen.tags[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)
        c:emit_signal("request::activate", "mouse_click", {raise = true})
    end),
    awful.button({ modkey }, 1, function (c)
        c:emit_signal("request::activate", "mouse_click", {raise = true})
        awful.mouse.client.move(c)
    end),
    awful.button({ modkey }, 3, function (c)
        c:emit_signal("request::activate", "mouse_click", {raise = true})
        awful.mouse.client.resize(c)
    end)
)

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

-- {{{ Rules
awful.rules.rules = {
    { rule = { },
      properties = { border_width = beautiful.border_width,
                     border_color = beautiful.border_normal,
                     focus = awful.client.focus.filter,
                     size_hints_honor = false,
                     raise = true,
                     keys = clientkeys,
                     buttons = clientbuttons,
                     screen = awful.screen.preferred,
                     placement = awful.placement.no_overlap+awful.placement.no_offscreen
     }
    },

    { rule = { name = "Alpine" },
      properties = { screen = 1,      tag = "mail" } },
    { rule = { name = "alpine" },
      properties = { screen = 1,      tag = "mail" } },
    { rule = { class = "Emacs" },
      properties = { screen = scount, tag = "emacs" } },
    { rule = { class = "Firefox" },
      properties = { screen = scount, tag = "web" } },
    { rule = { class = "firefox" },
      properties = { screen = scount, tag = "web" } },
    { rule = { class = "Slack" },
      properties = { screen = scount, tag = "im" } },

    { rule_any = {
        instance = {
          "xmessage",
          "pinentry",
          "plugin-container",
        },

        class = {
          "Places",         -- firefox downloads, history...
          "Pinentry.*",
          "Nautilus",
          "feh",
          "ROX-Filer",
          "Xmessage",
        },

        name = {
          "Library",        -- firefox downloads, history...
          "Event Tester",   -- xev
          "Alsamixer",
          "About Mozilla Firefox",
        },

        role = {
          "AlarmWindow",    -- Thunderbird calendar
          "ConfigManager",  -- Thunderbird about:config
          "pop-up",         -- Browser developer tools
        }
      }, properties = { floating = true, titlebars_enabled = true }},

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

-- {{{ Signals
client.connect_signal("manage", function (c)
    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
        awful.placement.no_overlap(c)
        awful.placement.no_offscreen(c)
    end

    if not awful.client.floating.get(c) then
        awful.titlebar.hide(c)
    end

    if awful.layout.get(c.screen) == awful.layout.suit.floating then
        awful.titlebar.show(c)
    end
end)

-- New client signal handlers
client.connect_signal("request::titlebars", function(c)
    local buttons = gears.table.join(
        awful.button({ }, 1, function()
            c:emit_signal("request::activate", "titlebar", {raise = true})
            awful.mouse.client.move(c)
        end),
        awful.button({ }, 3, function()
            c:emit_signal("request::activate", "titlebar", {raise = true})
            awful.mouse.client.resize(c)
        end)
    )

    -- Theme font "Terminus 8" or "ProFont 8" for this titlebar height
    awful.titlebar(c, { size = 16}) : 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
client.connect_signal("mouse::enter", function(c)
    c:emit_signal("request::activate", "mouse_enter", {raise = false})
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)
-- }}}


-- {{{ Screen padding
--     * when a laptop is right in front of the monitor and its
--       LCD is obstructing the view of the bottom of the screen
--       on the external monitor
if scount == 2 then
    awful.screen.padding(screen[1], { bottom = 235 })
end
-- }}}


-- {{{ Autostart
awful.spawn("/usr/bin/xinput set-prop 9 334 0 1 0", false)        -- touchpad single finger scrolling
awful.spawn(home .. "/bin/autostart-keychain-agent.sh", false)    -- launch the ssh-agent
awful.spawn(home .. "/bin/autostart-xmodmap-xdefaults.sh", false) -- xrdb merge defaults and keymap
-- }}}