local M = {}

local awful      = require("awful")
local gears      = require("gears")

local commondefs = require("commondefs")
local utils      = require("utils")

function M.create(workspace)
    local modkey = commondefs.modkey

    local globalkeys = gears.table.join(
        awful.key({ modkey, "Mod1"    }, "Delete", awesome.restart),
        awful.key({ modkey            }, "Pause", function () awful.spawn("xscreensaver-command -lock") end),

        -- program launching
        awful.key({ modkey,           }, "t", function () utils.spawn_current(commondefs.terminal) end),
        awful.key({ modkey,           }, "v", function () utils.spawn_current(commondefs.terminal .. " -e alsamixer") end),
        awful.key({ modkey,           }, "Escape", function () utils.spawn_current(commondefs.terminal .. " -e htop") end),

        -- audio control
        awful.key({ modkey },   "Prior",  function () utils.vol_control(1)           end),
        awful.key({ modkey },   "Next",   function () utils.vol_control(-1)          end),
        awful.key({ modkey },   "grave",  function () awful.spawn("mpc toggle") end),
        awful.key({ modkey },   "b",      function () awful.spawn("mpc next")   end),
        awful.key({ modkey },   "p",      function () awful.spawn("mpc prev")   end),

        -- focus/screen switching
        awful.key({ modkey,           }, "q",      function() utils.screen_focus_physical(1) end),
        awful.key({ modkey,           }, "w",      function() utils.screen_focus_physical(2) end),
        awful.key({ modkey,           }, "e",      function() utils.screen_focus_physical(3) end),

        awful.key({ modkey,           }, "Up",     function() workspace:view_relative(-1) end   ),
        awful.key({ modkey,           }, "Down",   function() workspace:view_relative(1)  end   ),
        awful.key({ modkey,           }, "k",      function() workspace:view_relative(-1) end   ),
        awful.key({ modkey,           }, "j",      function() workspace:view_relative(1)  end   ),

        awful.key({ modkey,           }, "Tab",
            function ()
                awful.client.focus.byidx(1)
                if client.focus then client.focus:raise() end
            end),
        awful.key({ modkey, "Shift"   }, "Tab",
            function ()
                awful.client.focus.byidx(-1)
                if client.focus then client.focus:raise() end
            end),
        awful.key({ modkey, "Mod1"    }, "Tab",
            function ()
                awful.client.focus.history.previous()
                if client.focus then
                    client.focus:raise()
                end
            end),

        -- Layout manipulation
        awful.key({ modkey,           }, "Return",
            function()
                if client.focus then
                    awful.client.setmaster(client.focus)
                end
            end),
        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,           }, "u", awful.client.urgent.jumpto),


        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,           }, ",",     function () awful.tag.incnmaster( 1)      end),
        awful.key({ modkey,           }, ".",     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),

        -- 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),

        awful.key({ modkey }, "n",
            function()
                awful.prompt.run({ prompt = "Rename desktop: " },
                                 mypromptbox[mouse.screen].widget,
                                 function(input)
                                     if input then
                                         local cur_desk = workspace.screen_state[mouse.screen].desktop_idx
                                         workspace:rename_desktop(cur_desk, input)
                                     end
                                 end)
            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, 10 do
        globalkeys = gears.table.join(globalkeys,
            -- View tag only.
            awful.key({ modkey }, "#" .. i + 9,
                      function ()
                            local screen = mouse.screen

                            local state = workspace.screen_state[screen]
                            local desk  = 1
                            if state then
                                desk = state.desktop_idx
                            end

                            workspace:view(screen, desk, i)
                      end),
            -- Move client to tag.
            awful.key({ modkey, "Shift" }, "#" .. i + 9,
                      function ()
                          if client.focus then
                              local c = client.focus
                              workspace:move_client(c, workspace.screen_state[c.screen].desktop_idx, i)
                         end
                      end))
    end

    for i = 1, 12 do
        globalkeys = gears.table.join(globalkeys,
            -- View tag only.
            awful.key({ modkey }, "#" .. i + 66,
                      function ()
                            local screen = mouse.screen
                            workspace:view(screen, i)
                      end),
            -- Move client to tag.
            awful.key({ modkey, "Shift" }, "#" .. i + 9,
                      function ()
                          if client.focus then
                              local c = client.focus
                              workspace:move_client(c, workspace.screen_state[c.screen].desktop_idx, i)
                         end
                      end))
    end

    local clientkeys = gears.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",      function (c) c:move_to_screen()               end),
        awful.key({ modkey, "Shift"   }, "q",      function( c) c:move_to_screen(utils.screen_physical(1)) end),
        awful.key({ modkey, "Shift"   }, "w",      function( c) c:move_to_screen(utils.screen_physical(2)) end),
        awful.key({ modkey, "Shift"   }, "e",      function( c) c:move_to_screen(utils.screen_physical(3)) end),
        awful.key({ modkey,           }, "m",
            function (c)
                c.maximized_horizontal = not c.maximized_horizontal
                c.maximized_vertical   = not c.maximized_vertical
            end)
    )

    return globalkeys, clientkeys
end

return M