--[[
MIT License

Copyright (c) 2024 Rainb0wSkeppy

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
]]

local logos = {
	cc_normal_small = {
		chars = {
			"\151\140\140\140\140\140\140\148",
			"\149\157\132\143   \149",
			"\149      \149",
			"\149      \149",
			"\149     \140\149",
		},
		fg = {
			"f8888888",
			"ff0f0008",
			"fffffff8",
			"fffffff7",
			"fffffff7",
		},
		bg = {
			"8fffffff",
			"80f0ffff",
			"8fffffff",
			"7fffffff",
			"7777777f",
		},
		width      = 8,
		height     = 5,
		color      = "lightGray",
		blit_color = "8",
	},
	cc_normal_small_ascii = {
		chars = {
			",------,",
			"|>_    |",
			"|      |",
			"|______|",
			"|     -|",
			"`------'",
		},
		fg = {
			"88888888",
			"80000008",
			"80000008",
			"77777777",
			"70000077",
			"77777777",
		},
		bg = {
			"ffffffff",
			"ffffffff",
			"ffffffff",
			"ffffffff",
			"ffffffff",
			"ffffffff",
		},
		width      = 8,
		height     = 6,
		color      = "orange",
		blit_color = "1",
	},
	cc_normal = {
		chars = {
			" \143\143\143\143\143\143\143\143\143\143\143\143\143\143 ",
			"  \131\131\131\131\131\131\131\131\131\131\131\131  ",
			"   \143\143           ",
			"   \131\131 \131\131        ",
			"                ",
			"                ",
			"                ",
			"                ",
			"            \143\143  ",
			"            \131\131  ",
		},
		fg = {
			"0ffffffffffffff0",
			"0088888888888880",
			"0000f00000000000",
			"000f00ff00000000",
			"0000000000000000",
			"0000000000000000",
			"0000000000000000",
			"0000000000000000",
			"0000000000007700",
			"000000000000ff00",
		},
		bg = {
			"f88888888888888f",
			"f8ffffffffffff8f",
			"f8ff0fffffffff8f",
			"f8f0ff00ffffff8f",
			"f8ffffffffffff8f",
			"f8ffffffffffff8f",
			"f7ffffffffffff7f",
			"f7ffffffffffff7f",
			"f77777777777ff7f",
			"f77777777777777f",
		},
		width      = 16,
		height     = 10,
		color      = "lightGray",
		blit_color = "8",
	},
	cc_advanced_small = {
		chars = {
			"\151\140\140\140\140\140\140\148",
			"\149\157\132\143   \149",
			"\149      \149",
			"\149      \149",
			"\149     \140\149",
		},
		fg = {
			"f4444444",
			"ff0f0004",
			"fffffff4",
			"fffffff1",
			"fffffff1",
		},
		bg = {
			"4fffffff",
			"40f0ffff",
			"4fffffff",
			"1fffffff",
			"1111111f",
		},
		width      = 8,
		height     = 5,
		color      = "orange",
		blit_color = "1",
	},
	cc_advanced_small_ascii = {
		chars = {
			",------,",
			"|>_    |",
			"|      |",
			"|______|",
			"|     -|",
			"`------'",
		},
		fg = {
			"44444444",
			"40000004",
			"40000004",
			"11111111",
			"10000071",
			"11111111",
		},
		bg = {
			"ffffffff",
			"ffffffff",
			"ffffffff",
			"ffffffff",
			"ffffffff",
			"ffffffff",
		},
		width      = 8,
		height     = 6,
		color      = "orange",
		blit_color = "1",
	},
	cc_advanced = {
		chars = {
			" \143\143\143\143\143\143\143\143\143\143\143\143\143\143 ",
			"  \131\131\131\131\131\131\131\131\131\131\131\131  ",
			"   \143\143           ",
			"   \131\131 \131\131        ",
			"                ",
			"                ",
			"                ",
			"                ",
			"            \143\143  ",
			"            \131\131  ",
		},
		fg = {
			"0ffffffffffffff0",
			"0044444444444440",
			"0000f00000000000",
			"000f00ff00000000",
			"0000000000000000",
			"0000000000000000",
			"0000000000000000",
			"0000000000000000",
			"0000000000001100",
			"000000000000ff00",
		},
		bg = {
			"f44444444444444f",
			"f4ffffffffffff4f",
			"f4ff0fffffffff4f",
			"f4f0ff00ffffff4f",
			"f4ffffffffffff4f",
			"f4ffffffffffff4f",
			"f1ffffffffffff1f",
			"f1ffffffffffff1f",
			"f11111111111ff1f",
			"f11111111111111f",
		},
		width      = 16,
		height     = 10,
		color      = "yellow",
		blit_color = "4",
	},
	potato_small = {
		chars = {
			"  \143\143\144  ",
			"\159\151\144\134\130\130\144",
			"\149\130\135\135\135\159\133",
			"\130\143\131\131\135\129 ",
		},
		fg = {
			"00ff100",
			"f4cc1fc",
			"f00441c",
			"cc11cc0",
		},
		bg = {
			"ff44fff",
			"400441f",
			"444c1cf",
			"ffccfff",
		},
		width      = 7,
		height     = 4,
		color      = "orange",
		blit_color = "1",
	},
	potato_small_ascii = {
		chars = {
			"    ___     ",
			" __-##=-__  ",
			" [o==o\"#~/-_",
			"|#[\"=]###|/|",
			"|#~=~#o_[//|",
			"|####[\"/__\" ",
			"~==oooo=~~  ",
			"   ====     ",
		},
		fg = {
			"000044400000",
			"014144410000",
			"01000cc41111",
			"440c0044411c",
			"440004c1111c",
			"44444cc1ccc0",
			"ccc1111ccc00",
			"000cccc00000",
		},
		bg = {
			"ffffffffffff",
			"ffffffffffff",
			"ffffffffffff",
			"ffffffffffff",
			"ffffffffffff",
			"ffffffffffff",
			"ffffffffffff",
			"ffffffffffff",
		},
		width      = 12,
		height     = 8,
		color      = "orange",
		blit_color = "1",
	},
	potato = {
		chars = {
			"  \143\143\143  \143\143\143\143  ",
			"  \131\131\131\131\131\131 \131 \131 ",
			"    \143 \143      ",
			"   \131 \131 \131 \131   ",
			" \143     \143 \143\143\143 ",
			" \131\131\131\131\131\131 \131\131\131  ",
			"    \143\143\143\143     ",
		},
		fg = {
			"00ff10041ff00",
			"0014444c010f0",
			"0000c00000000",
			"0000000404000",
			"0400000c011c0",
			"0c4444c01cc00",
			"0000cccc00000",
		},
		bg = {
			"ff14444c411ff",
			"ff4000c44411f",
			"f44000444411c",
			"f444044c4111c",
			"fc4444c11ccff",
			"ffcc1111cffff",
			"fffffffffffff",
		},
		width      = 13,
		height     = 7,
		color      = "orange",
		blit_color = "1",
	},
	phoenix_ascii = {
		chars = {
			"   _        _   ",
			"  /_|  _   |_\\  ",
			" /`][ | \\ ,]['\\ ",
			"|,=|]|| ,||[|=,|",
			"|-]|][|__|][|[-|",
			"|==`\\\\|,,|//'==|",
			" ]-,`\\||||/',-[ ",
			" `'>>|`,''|<<'' ",
			"   `][/||\\]['   ",
			"     ~`--'~     ",
		},
		fg = {
			"0001000000001000",
			"001c10010001c100",
			"01c1ec1010ce1c10",
			"1c1eec1071ceecc1",
			"1cceee1771cee1c1",
			"1cceee7cc7eeecc1",
			"01ccee7cc7eecc10",
			"01ccc7cccc7ccc10",
			"000c171cc171c000",
			"0000011111100000",
		},
		bg = {
			"ffffffffffffffff",
			"ffffffffffffffff",
			"ffffffffffffffff",
			"ffffffffffffffff",
			"ffffffffffffffff",
			"ffffffffffffffff",
			"ffffffffffffffff",
			"ffffffffffffffff",
			"ffffffffffffffff",
			"ffffffffffffffff",
		},
		width      = 16,
		height     = 10,
		color      = "orange",
		blit_color = "1",
	},
	phoenix = {
		chars = {
			"                ",
			"  \136\143\144 \159\144   \159\143\132  ",
			" \154\137\132\130\148\149 \144 \151\129\136\134\154 ",
			"\159\155\140\149 \149\149 \150 \149 \149\140\152\144",
			"\149\140\132\149 \138\149\143\143\149\133 \149\136\140\149",
			"\138\156\142\130 \130\149\144\159\149\129 \129\141\147\133",
			" \158\140\155\130\144\149\133\138\149\159\129\152\140\146 ",
			" \130\134\153\153\149\138\136\129\133\149\153\153\137\129 ",
			"  \130\139 \150 \149\149 \150 \135\129  ",
			"     \131\139\143\143\135\131     ",
			"                ",
		},
		fg = {
			"0000000000000000",
			"00c110f1000f1c00",
			"01ccccf010fcccf0",
			"f111ccf0f0f0e1c1",
			"fcc10ff111f0ecc1",
			"111e0c7c11c0e1c1",
			"01c1e17cc1eeccc0",
			"01ccc1cccc711cc0",
			"00cc070c1010cc00",
			"0000011111100000",
		},
		bg = {
			"ffffffffffffffff",
			"ff1cff1ffff1c1ff",
			"ff11ef11ffce111f",
			"1cceef111fce1c1f",
			"111eec177fce111f",
			"fcc1ee11c7ee1c1f",
			"fc1c1e111711111f",
			"ff111711111cc1ff",
			"ffff1111c171ffff",
			"ffffffffffffffff",
		},
		width      = 16,
		height     = 10,
		color      = "orange",
		blit_color = "1",
	},
	arch = {
		chars = {
			"       \x97\x94       ",
			"       \x81\x82       ",
			"      \x85  \x8a      ",
			"     \x97\x92\x90\x83\x8f\x94     ",
			"    \x9f  \x83   \x94    ",
			"    \x81\x87\x83\x83\x81  \x82    ",
			"   \x85   \x87\x8b   \x8a   ",
			"  \x85   \x95  \x95  \x8f\x8a  ",
			" \x87   \x9f\x85  \x8a\x90  \x8b\x90 ",
			"\x97 \x9f\x83        \x83\x90 \x94",
			"\x87\x81            \x82\x8b",
		},
		fg = {
			"0000000fb0000000",
			"0000000ff0000000",
			"000000f00f000000",
			"00000f9fbbb00000",
			"0000f00f000f0000",
			"0000f999900f0000",
			"000f000bb000f000",
			"00f000b00f00bf00",
			"0f000bb00bf00fb0",
			"f0bb00000000bf0b",
			"bb000000000000bb",
		},
		bg = {
			"fffffffbffffffff",
			"fffffffbbfffffff",
			"ffffffbbbbffffff",
			"fffff9f999ffffff",
			"ffff9999999fffff",
			"ffff9bbbbbbbffff",
			"fffbbbbffbbbbfff",
			"ffbbbbfffbbbfbff",
			"fbbbbfffffbbbbff",
			"bbfffffffffffbbf",
			"ffffffffffffffff",
		},
		width      = 16,
		height     = 11,
		color      = "lightBlue",
		blit_color = "3",
	},
	none = {
		chars = {},
		fg    = {},
		bg    = {},
		width      = 0,
		height     = 0,
		color      = "lightGray",
		blit_color = "8",
	}
}

local os_logos = {
	Phoenix   = logos.phoenix,
	CraftOS   = logos.cc_advanced,
	Recrafted = logos.cc_advanced,
	PotatOS   = logos.potato
}

local function get_os()
	if os.version then
		v = os.version()
		
		if v:find("^CraftOS") then
			return "craftos", "CraftOS", v:match("%d+%.%d+")
		elseif v:find("^PotatOS") then
			return "craftos", "PotatOS", v:match("%x%x%x%x%x%x%x%x")
		end
	elseif _HOST then
		if string.match(_HOST, "Recrafted") then
			local rc = require("rc")
			
			return "recrafted", "Recrafted", rc.version():match("%d+%.%d+")
		end
	elseif coroutine.yield("syscall", "version") then
		local util = require("system.util")
		
		return "phoenix", "Phoenix", util.syscall.version()
	end
end

local os_type, os_name, os_version = get_os()

if os_type == nil then
	error("Unknown OS")
end

local username
local hostname
local host
local kernel
local uptime
local packages
local shell
local width, height
local wm
local de
local lua_version  = _VERSION
local drives = {}

local set_fg
local set_bg
local blit
local write = write or io.write
local pause
local config
local load_file
local save_file
local args = arg or { ... }
args[0] = nil

if os_type == "craftos" or os_type == "recrafted" then
	local term = term
	local rc = os
	local fs = fs
	local colors = colors
	
	if os_type == "recrafted" then
		term   = require("term")
		rc     = require("rc")
		fs     = require("fs")
		colors = require("colors")
	end
	
	hostname      = rc.getComputerLabel() or ("Computer " .. rc.computerID())
	host          = _HOST
	uptime        = math.floor(rc.clock())
	width, height = term.getSize()
	
	if os_name ~= "PotatOS" and fs.getCapacity then
		local size = fs.getCapacity("/")
		local free = fs.getFreeSpace("/")
		local used = size - free
		
		drives["/"] = {size=size, free=free, used=used}
	end
	
	function set_fg(c)
		c = colors[c] or 2 ^ tonumber(c, 16)
		
		if c ~= nil then
			term.setTextColor(c)
		end
	end
	
	function set_bg(c)
		c = colors[c] or 2 ^ tonumber(c, 16)
		
		if c ~= nil then
			term.setBackgroundColor(c)
		end
	end
	
	function pause()
		while true do
			local event, key = os.pullEvent()
			
			if event == "key" then
				if key == keys.enter then
					break
				end
			end
		end
	end
	
	function load_file(path)
		local f = fs.open(path, "r")
		local s = f.readAll()
		f.close()
		
		return s
	end
	
	function save_file(path, s)
		local f = fs.open(path, "w")
		f.write(s)
		f.close()
	end
	
	blit = term.blit
elseif os_type == "phoenix" then
	local terminal = require("system.terminal")
	local hardware = require("system.hardware")
	local process  = require("system.process")
	local util     = require("system.util")
	local keys     = require("system.keys")
	local fs       = require("system.filesystem")
	
	username      = process.getuser()
	hostname      = hardware.call("/","getLabel") or "Computer " .. hardware.info("/").id
	host          = util.syscall.cchost()
	uptime        = math.floor(util.syscall.uptime())
	shell         = process.getpinfo(process.getppid()).name
	width, height = terminal.getSize()
	
	for i, j in ipairs(fs.mountlist()) do
		if j.type ~= "tmpfs" then
			local stat = fs.stat(j.path)
			
			drives[j.path] = {
				size = stat.capacity,
				used = stat.capacity - stat.freeSpace,
				free = stat.freeSpace,
			}
		end
	end
	
	function set_fg(c)
		c = terminal.colors[c] or tonumber(c, 16)
		
		if c ~= nil then
			terminal.write(terminal.toEscape(c))
		end
	end
	
	function set_bg(c)
		c = terminal.colors[c] or tonumber(c, 16)
		
		if c ~= nil then
			terminal.write(terminal.toEscape(c, true))
		end
	end
	
	function blit(s, fg, bg)
		local last_bg = -1
		local last_fg = -1
		
		for i = 1, #s do
			local c = string.sub(s,  i, i)
			local f = string.sub(fg, i, i)
			local b = string.sub(bg, i, i)
			
			if f ~= last_fg then
				set_fg(f)
				last_fg = f
			end
			
			if b ~= last_bg then
				set_bg(b)
				last_bg = b
			end
			
			write(c)
		end
	end
	
	function pause()
		while true do
			local event, args = util.pullEvent()
			
			if event == "key" then
				if args.keycode == keys.enter then
					break
				end
			end
		end
	end
	
	function load_file(path)
		local f = fs.open(path, "r")
		local s = f.readAll()
		f.close()
		
		return s
	end
	
	function save_file(path, s)
		local f = fs.open(path, "w")
		f.write(s)
		f.close()
	end
end

local function print_wrapped(s)
	local x = 1
	
	for i in s:gmatch("[^ ]+ *") do
		if x + #i + 1 > width then
			print()
			x = 1
		end
		
		write(j)
		
		x = x + #j
	end
	
	print()
end

local function print_paged(s)
	local y = 1
	
	for i in s:gmatch("[^\n]*") do
		local x = 1
		
		for j in i:gmatch("[^ ]*") do
			if j == "" then
				j = " "
			end
			
			if x + #j + 1 > width then
				if y == height - 1 then
					print()
					write("Press emter to continue to the next page")
					pause()
					y = 0
				end
				
				print()
				y = y + 1
				x = 1
			end
			
			write(j)
			
			x = x + #j
		end
		
		if i == "" then
			if y == height - 1 then
				print()
				write("Press enter to continue to the next page")
				pause()
				y = 0
			end
			
			print()
			y = y + 1
		end
	end
end

local logo = os_logos[os_name]

local y = 1

function println(a, b)
	if b == nil then
		b = a
		a = ""
	else
		a = a .. config.separator
	end
	
	if y <= logo.height then
		blit(logo.chars[y], logo.fg[y], logo.bg[y])
		set_bg("black")
		set_fg("white")
		write((" "):rep(config.gap))
	else
		write(string.rep(" ", logo.width + config.gap))
	end
	
	local max_b_width = width - logo.width - config.gap - 1 - #a
	
	if #b > max_b_width then
		b = string.sub(b, 1, max_b_width)
	end
	
	y = y + 1
	
	set_fg(logo.color)
	write(a)
	set_bg("black")
	set_fg("white")
	print(b)
end

function blitln(s, fg, bg)
	if y <= logo.height then
		blit(logo.chars[y], logo.fg[y], logo.bg[y])
		set_bg("black")
		set_fg("white")
		write((" "):rep(config.gap))
	else
		write(string.rep(" ", logo.width + config.gap))
	end
	
	local max_width = width - logo.width - config.gap - 1
	
	if #s > max_width then
		s  = string.sub(s,  1, max_width)
		fg = string.sub(fg, 1, max_width)
		bg = string.sub(bg, 1, max_width)
	end
	
	y = y + 1
	
	set_fg(logo.color)
	blit(s, fg, bg)
	set_bg("black")
	set_fg("white")
	print()
end

function time_to_s(n)
	local s = ""
	
	if n >= 24 * 60 * 60 then
		s = s .. tostring(math.floor(n / (24 * 60 * 60))) .. "d "
	end
	
	if n >= 60 * 60 then
		s = s .. tostring(math.floor(n / (60 * 60)) % 24) .. "h "
	end
	
	if n >= 60 then
		s = s .. tostring(math.floor(n / 60) % 60) .. "m "
	end
	
	s = s .. tostring(n % 60) .. "s"
	
	return s
end

function size_to_s(n)
	local s = ""
	
	if n > 2 ^ 40 then
		s = s .. tostring(math.floor(n / (2 ^ 40)) .. "TiB")
	elseif n > 2 ^ 30 then
		s = s .. tostring(math.floor(n / (2 ^ 30)) .. "GiB")
	elseif n > 2 ^ 20 then
		s = s .. tostring(math.floor(n / (2 ^ 20)) .. "MiB")
	elseif n > 2 ^ 10 then
		s = s .. tostring(math.floor(n / (2 ^ 10)) .. "KiB")
	else
		s = s .. tostring(n .. "b")
	end
	
	return s
end

local colors_to_blit = {
	white     = "0",
	orange    = "1",
	magenta   = "2",
	lightBlue = "3",
	yellow    = "4",
	lime      = "5",
	pink      = "6",
	gray      = "7",
	lightGray = "8",
	cyan      = "9",
	purple    = "a",
	blue      = "b",
	purple    = "c",
	green     = "d",
	red       = "e", 
	black     = "f",
}

local function parse_config(s)
	local config = load(s)() or {}
	
	config.logo      = config.logo      or nil
	config.color     = config.color     or nil
	config.separator = config.separator or ": "
	config.gap       = config.gap       or 1
	config.items     = config.items     or {
		"title",
		"title_line",
		"os",
		"host",
		"uptime",
		"packages",
		"shell",
		"term_size",
		"wm",
		"de",
		"lua_version",
		"drives",
		"blank",
		"color_blocks",
	}
	
	config.color_blocks = config.color_blocks or {
		width = 2,
		height = 1,
	}
	
	config.color_blocks.width  = config.color_blocks.width  or 2
	config.color_blocks.height = config.color_blocks.height or 1
	
	return config
end

local config_path = nil

do
	local i = 1
	
	while i <= #args do
		j = args[i]
		
		if j == "-h" or j == "--help" then
			print_paged([[
Usages:
  ccfetch [-l|--logo name] [-c|--color color] [-C|--config path]
  ccfetch -h|--help|--list-logos|--list-colors
  ccfetch --gen-config path path

-h       --help        Print this message and exit
-l name  --logo  name  Set the logo shown
-c color --color color Set the color of the text
-C path  --config path Use the specified config file

--list-logos           List all logos
--list-colors          List all colors
--gen-config path      Generate the default config at the specified path. WILL OVERRIDE WHATEVER FILE IS AT THAT PATH
]]) 
			
			return
		elseif j == "-l" or j == "--logo" then
			i = i + 1
			logo = logos[args[i]] or error("Invalid logo " .. args[i] .. ", use -L to see all logos")
		elseif j == "-c" or j == "--color" then
			i = i + 1
			logo.color = args[i] or error("Invalid color " .. args[i] .. ", use -C to see all colors")
			logo.blit_color = colors_to_blit[args[i]]
		elseif j == "-C" or j == "--config" then
			i = i + 1
			config_path = args[i]
		elseif j == "--list-colors" then
			
			print_paged([[
All colors:
white,     orange,   magenta,  lightBlue,
yellow,    lime,     pink,     gray,
lightGray, cyan,     purple,   blue,
purple,    green,    red,      black
]])
			
			return
		elseif j == "--list-logos" then
			local s = "All logos:\n"
			
			for i, j in pairs(logos) do
				s = s .. i .. ", "
			end
			
			s = s:sub(1, -3)
			
			print_paged(s)
			
			return
		elseif j == "--gen-config" then
			i = i + 1
			save_file(args[i],
			          [[
return {
-- What logo to use. --logo will override this.
-- Use ccfetch --list-logos for a list of
-- available logos.
  logo  = nil,
  
-- What color to use. --color will override this.
-- Use ccfetch --list-colors for a list of
-- available colors.
  color = "",
  
-- What separator to use.
  separator = ": ",
  
-- How wide the gap between the logo and items is.
  gap = 1,
  
-- What items should be used.
-- Availible items are:
--   title
--   title_line
--   os
--   host
--   uptime
--   packages
--   shell
--   term_size
--   wm
--   de
--   lua_version
--   drives
--   blank
--   color_blocks
  items = {
    "title",
    "title_line",
    "os",
    "host",
    "uptime",
    "packages",
    "shell",
    "term_size",
    "wm",
    "de",
    "lua_version",
    "drives",
    "blank",
    "color_blocks",
  },
  
-- Item specific configuration
  
-- Color blocks
  color_blocks = {
--   How wide a color block should be,
--   in characters
    width = 2,
    
--   How high a color block should be,
--   in characters
    height = 1,
  }
}
]])
			
			return
		else
			error("Invalid argument " .. j .. ", use -h for help")
		end
		
		i = i + 1
	end
end

config = parse_config(config_path and load_file(config_path) or "")

logo  = config.logo  or logo
color = config.color or color

local items = {}

function items.title()
	if username ~= nil then
		blitln(username .. "@" .. hostname,
		       logo.blit_color:rep(#username)
		    .. "0"
		    .. logo.blit_color:rep(#hostname),
		       ("f"):rep(#username + #hostname + 1))
	else
		blitln(hostname,
		       logo.blit_color:rep(#hostname),
		       ("f"):rep(#hostname))
	end
end

function items.title_line()
	if username ~= nil then
		println(("-"):rep(#username + #hostname + 1))
	else
		println(("-"):rep(#hostname))
	end
end

function items.os()
	println("OS", os_name .. " " .. os_version)
end

function items.host()
	println("Host", host)
end

function items.kernel()
	if kernel then
		println("Kernel", kernel)
	end
end

function items.uptime()
	if uptime then
		println("Uptime", time_to_s(uptime))
	end
end

function items.packages()
	if packages then
		println("Packages", packages)
	end
end

function items.shell()
	if shell then
		println("Shell", shell)
	end
end

function items.term_size()
	println("Terminal size", tostring(width) .. "x" .. tostring(height))
end

function items.wm()
	if wm then
		println("WM", wm)
	end
end

function items.de()
	if de then
		println("DE", de)
	end
end

function items.lua_version()
	println("Lua version", lua_version)
end

function items.drives()
	if drives then
		for i, j in pairs(drives) do
			println(i, size_to_s(j.used) .. "/" .. size_to_s(j.size))
		end
	end
end

function items.blank()
	println("")
end

function items.color_blocks()
	for i = 1, config.color_blocks.height do
		local s  = ""
		local fg = ""
		local bg = ""
		
		for _, j in ipairs({"0", "1", "2", "3", "4", "5", "6", "7"}) do
			s  = s  .. (" "):rep(config.color_blocks.width)
			fg = fg .. j:rep(config.color_blocks.width)
			bg = bg .. j:rep(config.color_blocks.width)
		end
		
		blitln(s,
		       fg,
		       bg)
	end
	
	for i = 1, config.color_blocks.height do
		local s  = ""
		local fg = ""
		local bg = ""
		
		for _, j in ipairs({"8", "9", "a", "b", "c", "d", "e", "f"}) do
			s  = s  .. (" "):rep(config.color_blocks.width)
			fg = fg .. j:rep(config.color_blocks.width)
			bg = bg .. j:rep(config.color_blocks.width)
		end
		
		blitln(s,
		       fg,
		       bg)
	end
end

for _, i in ipairs(config.items) do
	items[i]()
end

for i = y, logo.height do
	blit(logo.chars[i], logo.fg[i], logo.bg[i])
	set_bg("black")
	set_fg("white")
	print()
end