-- Standard awesome library
require("awful")
require("awful.autofocus")
require("awful.rules")
-- Theme handling library
require("beautiful")
-- Notification library
require("naughty")
--require("vicious")
-- {{{ Variable definitions
-- Themes define colours, icons, and wallpapers
beautiful.init(os.getenv("HOME") .. "/.config/awesome/themes/default/theme.lua")

-- Functions
function switch_tag (i)
   local screen = mouse.screen
   if tags[screen][i] then
      awful.tag.viewonly(tags[screen][i])
   end
end

function toggle_tag (i)
   local screen = mouse.screen
   if tags[screen][i] then
      awful.tag.viewtoggle(tags[screen][i])
   end
end

function move_to_tag (i)
   if client.focus and tags[client.focus.screen][i] then
      awful.client.movetotag(tags[client.focus.screen][i])
   end
end

function toggle_client_tag (i)
   if client.focus and tags[client.focus.screen][i] then
      awful.client.toggletag(tags[client.focus.screen][i])
   end
end

function fexists(n)
   local f = io.open(n)

   print(f)
   print(f == nil)
   
   if f == nil then
      print("returning false")
      return false
   end

   print("returning true")
   io.close(f)
   return true
end

-- This is used later as the default terminal and editor to run.
terminal = "urxvt"
editor = "emacs"
editor_cmd = 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.
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.floating
}
-- }}}

-- {{{ 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({ "Q", "W", "E", "A", "S", "D", "Z", "X", "C" }, s, layouts[1])
end
-- }}}

-- {{{ Menu
-- Create a laucher widget and a main menu
myawesomemenu = {
   { "manual", terminal .. " -e man awesome" },
   { "edit config", editor_cmd .. " " .. awful.util.getdir("config") .. "/rc.lua" },
   { "restart", awesome.restart },
   { "quit", awesome.quit }
}

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

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

-- {{{ Wibox
-- Create a textclock widget
mytextclock = awful.widget.textclock({ align = "right" })

-- Create Network usage widget
--netwidget = widget({ type = "textbox" })
--vicious.register(netwidget, vicious.net, "down:${eth0 down_kb} up:${eth0 up_kb}")

-- Create a systray
mysystray = widget({ type = "systray" })

-- 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, awful.tag.viewnext),
                    awful.button({ }, 5, awful.tag.viewprev)
                    )
mytasklist = {}
mytasklist.buttons = awful.util.table.join(
                     awful.button({ }, 1, function (c)
                                              if not c:isvisible() then
                                                  awful.tag.viewonly(c:tags()[1])
                                              end
                                              client.focus = c
                                              c:raise()
                                          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))
xmms2_playing = false
-- Create a previous button
myprevbutton = widget({ type = "imagebox" })
myprevbutton.image = image(beautiful.xmms2_previous_icon)
myprevbutton:buttons(awful.util.table.join(
                        awful.button({ }, 1,
                                     function ()
                                        awful.util.spawn("xmms2 prev")
                                     end)
                  ))
-- Create a play button
myplaybutton = widget({ type = "imagebox" })
myplaybutton.image = image(beautiful.xmms2_play_icon)
myplaybutton:buttons(awful.util.table.join(
                        awful.button({ }, 1,
                                     function ()
                                        awful.util.spawn("xmms2 toggleplay")
                                        if xmms2_playing then xmms2_playing = false else xmms2_playing = true end
                                        if xmms2_playing then
                                           myplaybutton.image = image(beautiful.xmms2_pause_icon)
                                        else
                                           myplaybutton.image = image(beautiful.xmms2_play_icon)
                                        end
                                     end)
                  ))
-- Create a stop button
mystopbutton = widget({ type = "imagebox" })
mystopbutton.image = image(beautiful.xmms2_stop_icon)
mystopbutton:buttons(awful.util.table.join(
                        awful.button({ }, 1,
                                     function ()
                                        if xmms2_playing then
                                           xmms2_playing = false
                                           myplaybutton.image = image(beautiful.xmms2_play_icon)
                                        end
                                        awful.util.spawn("xmms2 stop")
                                     end)
                  ))
-- Create a next button
mynextbutton = widget({ type = "imagebox" })
mynextbutton.image = image(beautiful.xmms2_next_icon)
mynextbutton:buttons(awful.util.table.join(
                        awful.button({ }, 1,
                                     function ()
                                        awful.util.spawn("xmms2 next")
                                     end)
                  ))

for s = 1, screen.count() do
    -- Create a promptbox for each screen
    mypromptbox[s] = awful.widget.prompt({ layout = awful.widget.layout.horizontal.leftright })
    -- 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.label.all, mytaglist.buttons)

    -- Create a tasklist widget
    mytasklist[s] = awful.widget.tasklist(function(c)
                                              return awful.widget.tasklist.label.currenttags(c, s)
                                          end, mytasklist.buttons)

    -- Create the wibox
    mywibox[s] = awful.wibox({ position = "top", screen = s })
    -- Add widgets to the wibox - order matters
    mywibox[s].widgets = {
        {
            mylauncher,
            mytaglist[s],
            mypromptbox[s],
            layout = awful.widget.layout.horizontal.leftright
        },
        mylayoutbox[s],
        mynextbutton,
        mystopbutton,
        myplaybutton,
        myprevbutton,
        mytextclock,
        s == 1 and mysystray or nil,
        mytasklist[s],
        layout = awful.widget.layout.horizontal.rightleft
    }
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, "Mod1"             }, "w", function () mymainmenu:show(true)        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, "Mod1"             }, "q", awesome.quit),
    awful.key({ "Mod1", "Control"          }, "l", function () awful.util.spawn("i3lock -c 000000") end),

    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),

    -- Extra tag bindings
    awful.key({ modkey,                    }, "q", function () switch_tag(1)        end),
    awful.key({ modkey,                    }, "w", function () switch_tag(2)        end),
    awful.key({ modkey,                    }, "e", function () switch_tag(3)        end),
    awful.key({ modkey,                    }, "a", function () switch_tag(4)        end),
    awful.key({ modkey,                    }, "s", function () switch_tag(5)        end),
    awful.key({ modkey,                    }, "d", function () switch_tag(6)        end),
    awful.key({ modkey,                    }, "z", function () switch_tag(7)        end),
    awful.key({ modkey,                    }, "x", function () switch_tag(8)        end),
    awful.key({ modkey,                    }, "c", function () switch_tag(9)        end),

    awful.key({ modkey, "Control"          }, "q", function () toggle_tag(1)        end),
    awful.key({ modkey, "Control"          }, "w", function () toggle_tag(2)        end),
    awful.key({ modkey, "Control"          }, "e", function () toggle_tag(3)        end),
    awful.key({ modkey, "Control"          }, "a", function () toggle_tag(4)        end),
    awful.key({ modkey, "Control"          }, "s", function () toggle_tag(5)        end),
    awful.key({ modkey, "Control"          }, "d", function () toggle_tag(6)        end),
    awful.key({ modkey, "Control"          }, "z", function () toggle_tag(7)        end),
    awful.key({ modkey, "Control"          }, "x", function () toggle_tag(8)        end),
    awful.key({ modkey, "Control"          }, "c", function () toggle_tag(9)        end),

    awful.key({ modkey, "Shift"            }, "q", function () move_to_tag(1)       end),
    awful.key({ modkey, "Shift"            }, "w", function () move_to_tag(2)       end),
    awful.key({ modkey, "Shift"            }, "e", function () move_to_tag(3)       end),
    awful.key({ modkey, "Shift"            }, "a", function () move_to_tag(4)       end),
    awful.key({ modkey, "Shift"            }, "s", function () move_to_tag(5)       end),
    awful.key({ modkey, "Shift"            }, "d", function () move_to_tag(6)       end),
    awful.key({ modkey, "Shift"            }, "z", function () move_to_tag(7)       end),
    awful.key({ modkey, "Shift"            }, "x", function () move_to_tag(8)       end),
    awful.key({ modkey, "Shift"            }, "c", function () move_to_tag(9)       end),

    awful.key({ modkey, "Control", "Shift" }, "q", function () toggle_cleint_tag(1) end),
    awful.key({ modkey, "Control", "Shift" }, "w", function () toggle_cleint_tag(2) end),
    awful.key({ modkey, "Control", "Shift" }, "e", function () toggle_cleint_tag(3) end),
    awful.key({ modkey, "Control", "Shift" }, "a", function () toggle_cleint_tag(4) end),
    awful.key({ modkey, "Control", "Shift" }, "s", function () toggle_cleint_tag(5) end),
    awful.key({ modkey, "Control", "Shift" }, "d", function () toggle_cleint_tag(6) end),
    awful.key({ modkey, "Control", "Shift" }, "z", function () toggle_cleint_tag(7) end),
    awful.key({ modkey, "Control", "Shift" }, "x", function () toggle_cleint_tag(8) end),
    awful.key({ modkey, "Control", "Shift" }, "c", function () toggle_cleint_tag(9) end),
    
    -- Prompt
    awful.key({ modkey },            "r",     function () mypromptbox[mouse.screen]:run() end),

    awful.key({ modkey, "Mod1"    }, "x",
              function ()
                  awful.prompt.run({ prompt = "Run Lua code: " },
                  mypromptbox[mouse.screen].widget,
                  awful.util.eval, nil,
                  awful.util.getdir("cache") .. "/history_eval")
              end)
)

clientkeys = awful.util.table.join(
    awful.key({ modkey,           }, "f",      function (c) c.fullscreen = not c.fullscreen  end),
    awful.key({ modkey, "Mod1"    }, "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, "Shift"   }, "r",      function (c) c:redraw()                       end),
    awful.key({ modkey,           }, "n",      function (c) c.minimized = not c.minimized    end),
    awful.key({ modkey,           }, "m",
        function (c)
            c.maximized_horizontal = not c.maximized_horizontal
            c.maximized_vertical   = not c.maximized_vertical
        end)
)

-- Compute the maximum number of digit we need, limited to 9
keynumber = 0
for s = 1, screen.count() do
   keynumber = math.min(9, math.max(#tags[s], keynumber));
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
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 = true,
                     keys = clientkeys,
                     buttons = clientbuttons } },
    { rule = { class = "MPlayer" },
      properties = { floating = true } },
    { rule = { class = "pinentry" },
      properties = { floating = true } },
    { rule = { class = "gimp" },
      properties = { floating = true } },
    { rule = { class = "gwibber", name = "gwibber" },
      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.add_signal("manage", function (c, startup)
    -- Add a titlebar
    -- awful.titlebar.add(c, { modkey = modkey })

    -- Enable sloppy focus
    c:add_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
end)

client.add_signal("focus", function(c) 
                              c.border_color = beautiful.border_focus 
                             -- c.opacity = 1
                           end)
client.add_signal("unfocus", function(c) 
                                c.border_color = beautiful.border_normal 
                               -- c.opacity = 0.7
                             end)
-- }}}

if fexists(os.getenv("HOME") .. "/.config/awesome/local_rc.lua") then
   dofile(os.getenv("HOME") .. "/.config/awesome/local_rc.lua")
end