-- Standard awesome library
local gears = require("gears")
local awful = require("awful")
awful.rules = require("awful.rules")
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")

-- {{{ 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 = err })
                             in_error = false
                                          end)
end
-- }}}

-- {{{ Variable definitions
-- Themes define colours, icons, and wallpapers
beautiful.init("/usr/share/awesome/themes/default/theme.lua")

-- This is used later as the default terminal and editor to run.
terminal = "xterm"
editor = os.getenv("EDITOR") or "nano"
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.
local layouts =
   {
   awful.layout.suit.floating,
   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
   }
   -- }}}

   -- {{{ Wallpaper
   if beautiful.wallpaper then
      for s = 1, screen.count() do
         gears.wallpaper.maximized(beautiful.wallpaper, s, true)
      end
   end
   -- }}}

   -- {{{ Tags
   -- Define a tag table which hold all screen tags.
   tags = {}
   for s = 1, screen.count() do
      -- Each screen has its own tag table.
      tags[s] = awful.tag({ 1, 2, 3, 4, 5, 6, 7, 8, 9 }, s, layouts[1])
   end
   -- }}}

   -- {{{ Menu
   -- Create a laucher widget and a main menu
   myawesomemenu = {
      { "manual", terminal .. " -e man awesome" },
      { "edit config", editor_cmd .. " " .. awesome.conffile },
      { "restart", awesome.restart },
      { "quit", awesome.quit }
   }

   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
   -- }}}

   -- {{{ Wibox
   -- Create a textclock widget
   mytextclock = awful.widget.textclock()

   -- BEGIN OF AWESOMPD WIDGET DECLARATION

   local awesompd = require('awesompd/awesompd')

   musicwidget = awesompd:create() -- Create awesompd widget
   musicwidget.font = "Liberation Mono" -- Set widget font
   -- musicwidget.font_color = "#FFFFFF" --Set widget font color
   -- musicwidget.background = "#000000" --Set widget background color
   musicwidget.scrolling = true -- If true, the text in the widget will be scrolled
   musicwidget.output_size = 30 -- Set the size of widget in symbols
   musicwidget.update_interval = 10 -- Set the update interval in seconds

   -- Set the folder where icons are located (change username to your login name)
   musicwidget.path_to_icons = "/home/unlogic/.config/awesome/icons"

   -- Set the path to the icon to be displayed on the widget itself
   -- musicwidget.widget_icon = "/path/to/icon"

   -- Set the default music format for Jamendo streams. You can change
   -- this option on the fly in awesompd itself.
   -- possible formats: awesompd.FORMAT_MP3, awesompd.FORMAT_OGG
   musicwidget.jamendo_format = awesompd.FORMAT_MP3

   -- Specify the browser you use so awesompd can open links from
   -- Jamendo in it.
   musicwidget.browser = "firefox"

   -- If true, song notifications for Jamendo tracks and local tracks
   -- will also contain album cover image.
   musicwidget.show_album_cover = true

   -- Specify how big in pixels should an album cover be. Maximum value
   -- is 100.
   musicwidget.album_cover_size = 50

   -- This option is necessary if you want the album covers to be shown
   -- for your local tracks.
   musicwidget.mpd_config = "/home/unlogic/.mpdconf"

   -- Specify decorators on the left and the right side of the
   -- widget. Or just leave empty strings if you decorate the widget
   -- from outside.
   musicwidget.ldecorator = " "
   musicwidget.rdecorator = " "

   -- Set all the servers to work with (here can be any servers you use)
   musicwidget.servers = {
      { server = "localhost",
        port = 6600 },
      { server = "192.168.0.72",
        port = 6600 }
   }

   -- Set the buttons of the widget. Keyboard keys are working in the
   -- entire Awesome environment. Also look at the line 352.
   musicwidget:register_buttons(
      { { "", awesompd.MOUSE_LEFT, musicwidget:command_playpause() },
        { "Control", awesompd.MOUSE_SCROLL_UP, musicwidget:command_prev_track() },
        { "Control", awesompd.MOUSE_SCROLL_DOWN, musicwidget:command_next_track() },
        { "", awesompd.MOUSE_SCROLL_UP, musicwidget:command_volume_up() },
        { "", awesompd.MOUSE_SCROLL_DOWN, musicwidget:command_volume_down() },
        { "", awesompd.MOUSE_RIGHT, musicwidget:command_show_menu() },
        { "", "XF86AudioLowerVolume", musicwidget:command_volume_down() },
        { "", "XF86AudioRaiseVolume", musicwidget:command_volume_up() },
        { modkey, "Pause", musicwidget:command_playpause() } })

   musicwidget:run() -- After all configuration is done, run the widget

   -- END OF AWESOMPD WIDGET DECLARATION
   -- Don't forget to add the widget to the wibox. It is done on the line 244.

   -- Create a wibox for each screen and add it
   mywibox = {}
   mypromptbox = {}
   mylayoutbox = {}
   mytaglist = {}
   mytaglist.buttons = awful.util.table.join(
      awful.button({ }, 1, awful.tag.viewonly),
      awful.button({ modkey }, 1, awful.client.movetotag),
      awful.button({ }, 3, awful.tag.viewtoggle),
      awful.button({ modkey }, 3, awful.client.toggletag),
      awful.button({ }, 4, function(t) awful.tag.viewnext(awful.tag.getscreen(t)) end),
      awful.button({ }, 5, function(t) awful.tag.viewprev(awful.tag.getscreen(t)) end)
                                            )
   mytasklist = {}
   mytasklist.buttons = awful.util.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() then
                            awful.tag.viewonly(c:tags()[1])
                         end
                         -- This will also un-minimize
                         -- the client, if needed
                         client.focus = c
                         c:raise()
                      end
                           end),
      awful.button({ }, 3, function ()
                      if instance then
                         instance:hide()
                         instance = nil
                      else
                         instance = awful.menu.clients({ width=250 })
                      end
                           end),
      awful.button({ }, 4, function ()
                      awful.client.focus.byidx(1)
                      if client.focus then client.focus:raise() end
                           end),
      awful.button({ }, 5, function ()
                      awful.client.focus.byidx(-1)
                      if client.focus then client.focus:raise() end
                           end))

   for s = 1, screen.count() do
      -- Create a promptbox for each screen
      mypromptbox[s] = awful.widget.prompt()
      -- Create an imagebox widget which will contains an icon indicating which layout we're using.
      -- We need one layoutbox per screen.
      mylayoutbox[s] = awful.widget.layoutbox(s)
      mylayoutbox[s]:buttons(awful.util.table.join(
                                awful.button({ }, 1, function () awful.layout.inc(layouts, 1) end),
                                awful.button({ }, 3, function () awful.layout.inc(layouts, -1) end),
                                awful.button({ }, 4, function () awful.layout.inc(layouts, 1) end),
                                awful.button({ }, 5, function () awful.layout.inc(layouts, -1) end)))
      -- Create a taglist widget
      mytaglist[s] = awful.widget.taglist(s, awful.widget.taglist.filter.all, mytaglist.buttons)

      -- Create a tasklist widget
      mytasklist[s] = awful.widget.tasklist(s, awful.widget.tasklist.filter.currenttags, mytasklist.buttons)

      -- Create the wibox
      mywibox[s] = awful.wibox({ position = "top", screen = s })

      -- Widgets that are aligned to the left
      local left_layout = wibox.layout.fixed.horizontal()
      left_layout:add(mylauncher)
      left_layout:add(mytaglist[s])
      left_layout:add(mypromptbox[s])

      -- Widgets that are aligned to the right
      local right_layout = wibox.layout.fixed.horizontal()
      if s == 1 then right_layout:add(wibox.widget.systray()) end
      right_layout:add(musicwidget.widget)  -- Widget is added here.
      right_layout:add(mytextclock)
      right_layout:add(mylayoutbox[s])

      -- Now bring it all together (with the tasklist in the middle)
      local layout = wibox.layout.align.horizontal()
      layout:set_left(left_layout)
      layout:set_middle(mytasklist[s])
      layout:set_right(right_layout)

      mywibox[s]:set_widget(layout)
   end
   -- }}}

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

   -- {{{ Key bindings
   globalkeys = awful.util.table.join(
      awful.key({ modkey,           }, "Left",   awful.tag.viewprev       ),
      awful.key({ modkey,           }, "Right",  awful.tag.viewnext       ),
      awful.key({ modkey,           }, "Escape", awful.tag.history.restore),

      awful.key({ modkey,           }, "j",
                function ()
                   awful.client.focus.byidx( 1)
                   if client.focus then client.focus:raise() end
                end),
      awful.key({ modkey,           }, "k",
                function ()
                   awful.client.focus.byidx(-1)
                   if client.focus then client.focus:raise() end
                end),
      awful.key({ modkey,           }, "w", function () mymainmenu:show() end),

      -- Layout manipulation
      awful.key({ modkey, "Shift"   }, "j", function () awful.client.swap.byidx(  1)    end),
      awful.key({ modkey, "Shift"   }, "k", function () awful.client.swap.byidx( -1)    end),
      awful.key({ modkey, "Control" }, "j", function () awful.screen.focus_relative( 1) end),
      awful.key({ modkey, "Control" }, "k", function () awful.screen.focus_relative(-1) end),
      awful.key({ modkey,           }, "u", awful.client.urgent.jumpto),
      awful.key({ modkey,           }, "Tab",
                function ()
                   awful.client.focus.history.previous()
                   if client.focus then
                      client.focus:raise()
                   end
                end),

      -- Standard program
      awful.key({ modkey,           }, "Return", function () awful.util.spawn(terminal) end),
      awful.key({ modkey, "Control" }, "r", awesome.restart),
      awful.key({ modkey, "Shift"   }, "q", awesome.quit),

      awful.key({ modkey,           }, "l",     function () awful.tag.incmwfact( 0.05)    end),
      awful.key({ modkey,           }, "h",     function () awful.tag.incmwfact(-0.05)    end),
      awful.key({ modkey, "Shift"   }, "h",     function () awful.tag.incnmaster( 1)      end),
      awful.key({ modkey, "Shift"   }, "l",     function () awful.tag.incnmaster(-1)      end),
      awful.key({ modkey, "Control" }, "h",     function () awful.tag.incncol( 1)         end),
      awful.key({ modkey, "Control" }, "l",     function () awful.tag.incncol(-1)         end),
      awful.key({ modkey,           }, "space", function () awful.layout.inc(layouts,  1) end),
      awful.key({ modkey, "Shift"   }, "space", function () awful.layout.inc(layouts, -1) end),

      awful.key({ modkey, "Control" }, "n", awful.client.restore),

      -- Prompt
      awful.key({ modkey },            "r",     function () mypromptbox[mouse.screen]:run() end),

      awful.key({ modkey }, "x",
                function ()
                   awful.prompt.run({ prompt = "Run Lua code: " },
                                    mypromptbox[mouse.screen].widget,
                                    awful.util.eval, nil,
                                    awful.util.getdir("cache") .. "/history_eval")
                end),
      -- Menubar
      awful.key({ modkey }, "p", function() menubar.show() end)
                                     )

   clientkeys = awful.util.table.join(
      awful.key({ modkey,           }, "f",      function (c) c.fullscreen = not c.fullscreen  end),
      awful.key({ modkey, "Shift"   }, "c",      function (c) c:kill()                         end),
      awful.key({ modkey, "Control" }, "space",  awful.client.floating.toggle                     ),
      awful.key({ modkey, "Control" }, "Return", function (c) c:swap(awful.client.getmaster()) end),
      awful.key({ modkey,           }, "o",      awful.client.movetoscreen                        ),
      awful.key({ modkey,           }, "t",      function (c) c.ontop = not c.ontop            end),
      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),
      awful.key({ modkey,           }, "m",
                function (c)
                   c.maximized_horizontal = not c.maximized_horizontal
                   c.maximized_vertical   = not c.maximized_vertical
                end)
                                     )

   -- Bind all key numbers to tags.
   -- Be careful: we use keycodes to make it works on any keyboard layout.
   -- This should map on the top row of your keyboard, usually 1 to 9.
   for i = 1, 9 do
      globalkeys = awful.util.table.join(globalkeys,
                                         awful.key({ modkey }, "#" .. i + 9,
                                                   function ()
                                                      local screen = mouse.screen
                                                      local tag = awful.tag.gettags(screen)[i]
                                                      if tag then
                                                         awful.tag.viewonly(tag)
                                                      end
                                                   end),
                                         awful.key({ modkey, "Control" }, "#" .. i + 9,
                                                   function ()
                                                      local screen = mouse.screen
                                                      local tag = awful.tag.gettags(screen)[i]
                                                      if tag then
                                                         awful.tag.viewtoggle(tag)
                                                      end
                                                   end),
                                         awful.key({ modkey, "Shift" }, "#" .. i + 9,
                                                   function ()
                                                      local tag = awful.tag.gettags(client.focus.screen)[i]
                                                      if client.focus and tag then
                                                         awful.client.movetotag(tag)
                                                      end
                                                   end),
                                         awful.key({ modkey, "Control", "Shift" }, "#" .. i + 9,
                                                   function ()
                                                      local tag = awful.tag.gettags(client.focus.screen)[i]
                                                      if client.focus and tag then
                                                         awful.client.toggletag(tag)
                                                      end
                                                   end))
   end

   clientbuttons = awful.util.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
   -- Add this line before root.keys(globalkeys).
   musicwidget:append_global_keys()

   root.keys(globalkeys)
   -- }}}

   -- {{{ Rules
   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,
                       keys = clientkeys,
                       buttons = clientbuttons } },
      { rule = { class = "MPlayer" },
        properties = { floating = true } },
      { rule = { class = "pinentry" },
        properties = { floating = true } },
      { rule = { class = "gimp" },
        properties = { floating = true } },
      -- Set Firefox to always map on tags number 2 of screen 1.
      -- { rule = { class = "Firefox" },
      --   properties = { tag = tags[1][2] } },
   }
   -- }}}

   -- {{{ Signals
   -- Signal function to execute when a new client appears.
   client.connect_signal("manage", function (c, startup)
                            -- Enable sloppy focus
                            c: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)

                            if not startup then
                               -- Set the windows at the slave,
                               -- i.e. put it at the end of others instead of setting it master.
                               -- awful.client.setslave(c)

                               -- Put windows in a smart way, only if they does not set an initial position.
                               if 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
                            end

                            local titlebars_enabled = false
                            if titlebars_enabled and (c.type == "normal" or c.type == "dialog") then
                               -- buttons for the titlebar
                               local buttons = awful.util.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)
                                                                    )

                               -- Widgets that are aligned to the left
                               local left_layout = wibox.layout.fixed.horizontal()
                               left_layout:add(awful.titlebar.widget.iconwidget(c))
                               left_layout:buttons(buttons)

                               -- Widgets that are aligned to the right
                               local right_layout = wibox.layout.fixed.horizontal()
                               right_layout:add(awful.titlebar.widget.floatingbutton(c))
                               right_layout:add(awful.titlebar.widget.maximizedbutton(c))
                               right_layout:add(awful.titlebar.widget.stickybutton(c))
                               right_layout:add(awful.titlebar.widget.ontopbutton(c))
                               right_layout:add(awful.titlebar.widget.closebutton(c))

                               -- The title goes in the middle
                               local middle_layout = wibox.layout.flex.horizontal()
                               local title = awful.titlebar.widget.titlewidget(c)
                               title:set_align("center")
                               middle_layout:add(title)
                               middle_layout:buttons(buttons)

                               -- Now bring it all together
                               local layout = wibox.layout.align.horizontal()
                               layout:set_left(left_layout)
                               layout:set_right(right_layout)
                               layout:set_middle(middle_layout)

                               awful.titlebar(c):set_widget(layout)
                            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)
   -- }}}
