-- cherry-picks from https://gitlab.com/VanessaE/street_signs (LGPL 3.0)
-- it is strongly recommended to grab the original mod.
--
minetest.register_alias("signs:text", "signs_lib:text")
--

street_signs = {}
street_signs.path = minetest.get_modpath(minetest.get_current_modname())
screwdriver = screwdriver or {}

street_signs.lbm_restore_nodes = {}

street_signs.big_sign_sizes = {
--    "size",   lines, chars, hscale, vscale, xoffs, yoffs, box
	{ "small",  3,     50,    1.3,    1.05,    7,     5,     { -0.5, -0.5, -0.5, -0.4, 0.5, 1.5 } },
	{ "medium", 6,     50,    1.3,    1.05,    7,     5,     { -0.5, -0.5, -0.5, -0.4, 1.5, 1.5 } },
	{ "large",  6,     80,    1,      1.05,    7,     5,     { -0.5, -0.5, -0.5, -0.4, 1.5, 2.5 } }
}

street_signs.big_sign_colors = {
	{ "green",  "f", "dye:green",  "dye:white" },
	{ "blue",   "f", "dye:blue",   "dye:white" },
	{ "yellow", "0", "dye:yellow", "dye:black" },
	{ "orange", "0", "dye:orange", "dye:black" }
}


-- restore signs' text after /clearobjects and the like, the next time
-- a block is reloaded by the server.

minetest.register_lbm({
	nodenames = street_signs.lbm_restore_nodes,
	name = ":street_signs:restore_sign_text",
	label = "Restore sign text",
	run_at_every_load = true,
	action = function(pos, node)
		street_signs.update_sign(pos)
	end
})

local cbox = signs_lib.make_selection_boxes(36, 36)

for _, s in ipairs(street_signs.big_sign_sizes) do
	local size =   s[1]
	local nlines = s[2]
	local nchars = s[3]
	local hscale = s[4]
	local vscale = s[5]
	local xoffs =  s[6]
	local yoffs =  s[7]
	local cbox = {
		type = "wallmounted",
		wall_side = s[8],
		wall_top =    { -s[8][3], -s[8][1], s[8][2], -s[8][6], -s[8][4], s[8][5] },
		wall_bottom = {  s[8][3],  s[8][1], s[8][2],  s[8][6],  s[8][4], s[8][5] }
	}
	for _, c in ipairs(street_signs.big_sign_colors) do
		local color = c[1]
		local defc = c[2]
		
		signs_lib.register_sign("street_signs:sign_highway_"..size.."_"..color, {
			description = "Generic highway sign ("..nlines.."-line, "..size..", "..color..")",
			inventory_image = "street_signs_generic_highway_"..size.."_"..color.."_inv.png",
			selection_box = cbox,
			mesh = "street_signs_generic_highway_"..size.."_wall.obj",
			tiles = {
				"street_signs_generic_highway_"..size.."_"..color..".png",
				"street_signs_generic_highway_edges.png"
			},
			default_color = defc,
			groups = signs_lib.standard_steel_groups,
			sounds = signs_lib.standard_steel_sign_sounds,
			number_of_lines = nlines,
			chars_per_line = nchars,
			horiz_scaling = hscale,
			vert_scaling = vscale,
			line_spacing = 2,
			font_size = 31,
			x_offset = xoffs,
			y_offset = yoffs,
			entity_info = {
				mesh = "street_signs_generic_highway_"..size.."_entity_wall.obj",
				yaw = signs_lib.wallmounted_yaw
			},
			allow_widefont = true,
			allow_onpole = true
		})

		minetest.register_alias("street_signs:sign_highway_widefont_"..size.."_"..color,
			"street_signs:sign_highway_"..size.."_"..color.."_widefont")
	end
end

cbox = signs_lib.make_selection_boxes(60, 24)

signs_lib.register_sign("street_signs:sign_roundabout_directional", {
	description = "R6-4b: Roundabout direction (4 chevrons)",
	selection_box = cbox,
	mesh = "street_signs_generic_sign_60x24_wall.obj",
	tiles = {
		"street_signs_roundabout_directional.png",
		"street_signs_sign_edge.png",
	},
	inventory_image = "street_signs_roundabout_directional_inv.png",
	groups = signs_lib.standard_steel_groups,
	sounds = signs_lib.standard_steel_sign_sounds,
	allow_onpole = true,
	allow_onpole_horizontal = true,
})

signs_lib.register_sign("street_signs:sign_roundabout_directional_left", {
	description = "R6-4b: Roundabout direction (4 chevrons, pointing left)",
	selection_box = cbox,
	mesh = "street_signs_generic_sign_60x24_wall.obj",
	tiles = {
		"street_signs_roundabout_directional_left.png",
		"street_signs_sign_edge.png",
	},
	inventory_image = "street_signs_roundabout_directional_left_inv.png",
	groups = signs_lib.standard_steel_groups,
	sounds = signs_lib.standard_steel_sign_sounds,
	allow_onpole = true,
	allow_onpole_horizontal = true,
})