local p = {}



local format = mw.ustring.format

local roadDataModule = require("Module:Road data")



local function routeText(route)

	local shieldText = roadDataModule.shield(route, nil, nil, nil, true)

	local linkText = roadDataModule.link(route)

	local result = mw.html.create("span"):css({display = "inline-block"})

	result:wikitext(shieldText .. ' ' .. linkText)

	return tostring(result)

end



local function previousRoute(route)

	local cell = mw.html.create('td'):css({

		padding = "0",

		"text-align" = "left",

		"vertical-align" = "middle"

	})

	if not route.type or route.type == '' then

		cell:wikitext(" ")

	else

		cell:wikitext("← " .. routeText(route))

	end

	return cell

end



local function nextRoute(route)

	local cell = mw.html.create('td'):css({

		direction = "rtl",

		padding = "0",

		"text-align" = "right",

		"vertical-align" = "middle"

	})

	if not route.type or route.type == '' then

		cell:wikitext(" ")

	else

		cell:wikitext("→ " .. routeText(route))

	end

	return cell

end



function p._browse(route)

	local country = route.country

	local state = route.state or route.province

	local county = route.county

	

	local previousData = {

		country = country, state = state, county = county,

		type = route.previous_type, route = route.previous_route,

		dab = route.previous_dab

	}

	local nextData = {

		country = country, state = state, county = county,

		type = route.next_type, route = route.next_route,

		dab = route.next_dab

	}

	

	local previousRoute = previousRoute(previousData)

	local nextRoute = nextRoute(nextData)

	if previousData.typeerror or nextData.typeerror then

		route.typeerror = true

	end

	

	local centerRoute = mw.html.create('td'):css({

		"text-align" = "center",

		"white-space" = "nowrap",

		padding = "0 3px",

		"vertical-align" = "middle"

	})

	local route = route.browse_route

	if route then

		centerRoute:css("padding", "0 6px")

		centerRoute:wikitext(format("'''%s'''", route))

	end

	

	local browseRow = mw.html.create('tr')

	browseRow:node(previousRoute):node(centerRoute):node(nextRoute)

	return tostring(browseRow)

end



function p.browse(frame)

	-- Import module function to work with passed arguments

	local getArgs = require('Module:Arguments').getArgs

	local args = getArgs(frame)

	args.browse_route = args.route

	return p._browse(args)

end



return p