local incline = require("incline")
local helpers = require("incline.helpers")
local devicons = require("nvim-web-devicons")

incline.setup({
	window = {
		padding = 0,
		margin = { horizontal = 0 },
	},
	render = function(props)
		local filename = vim.fn.fnamemodify(vim.api.nvim_buf_get_name(props.buf), ":t")
		local ft_icon, ft_color = devicons.get_icon_color(filename)
		local modified = vim.bo[props.buf].modified

		local function get_git_diff()
			local icons = { removed = "", changed = "", added = "" }
			local signs = vim.b[props.buf].gitsigns_status_dict
			local labels = {}
			if signs == nil then
				return labels
			end
			for name, icon in pairs(icons) do
				if tonumber(signs[name]) and signs[name] > 0 then
					table.insert(labels, { icon .. signs[name] .. " ", group = "Diff" .. name })
				end
			end
			if #labels > 0 then
				table.insert(labels, { "┊ " })
			end
			return labels
		end

		local function get_diagnostic_label()
			local icons = { error = "", warn = "", info = "", hint = "" }
			local label = {}

			for severity, icon in pairs(icons) do
				local n = #vim.diagnostic.get(props.buf, { severity = vim.diagnostic.severity[string.upper(severity)] })
				if n > 0 then
					table.insert(label, { icon .. n .. " ", group = "DiagnosticSign" .. severity })
				end
			end
			if #label > 0 then
				table.insert(label, { "┊ " })
			end
			return label
		end

		return {
			{ get_diagnostic_label() },
			{ get_git_diff() },
			ft_icon and { " ", ft_icon, " ", guibg = ft_color, guifg = helpers.contrast_color(ft_color) } or "",
			" ",
			{ filename, gui = modified and "bold,italic" or "bold" },
			" ",
			guibg = "#44406e",
		}
	end,
})