init.lua

local function setup(_, options)
    local default_options = {
        separators = {
            left = "", 
            right = "",
        },
        mode = {
            normal = "NORMAL",
            select = "SELECT",
            unset = "UNSET",
        },
    }

    options = options or default_options
    local separators = options.separators or default_options.separators 
    local mode = options.mode or default_options.mode

    function Status:mode()
        local name = mode.normal
        -- self object represents statusline
        local main = self:style().main
        local alt = self:style().alt

        if cx.active.mode.is_select then
            name = mode.select
        elseif cx.active.mode.is_unset then
            name = mode.unset
        end

        return ui.Line({
            ui.Span(" "..name.." "):style(main), 
            ui.Span(separators.left):fg(main.bg):bg(alt.bg)
        })
    end

    function Status:size()
        local alt = self:style().alt
        local hovered = cx.active.current.hovered
        if not hovered then return ui.Span(separators.left):fg(alt.bg) end

        local size = ya.readable_size(hovered:size() or hovered.cha.len)
        return ui.Line({
            ui.Span(" "..size.." "):style(alt),
            ui.Span(separators.left):fg(alt.bg)
        })
    end

    function Status:name()
        local hovered = cx.active.current.hovered
        if not hovered then return ui.Span("") end

        local linked = ""
        if hovered.link_to ~= nil then
            linked = " -> " .. tostring(hovered.link_to)
        end

        return ui.Span(" " .. hovered.name .. linked)
    end

    function Status:percent()
        local alt = self:style().alt
        local percent = 0
        local cursor = cx.active.current.cursor
        local length = #cx.active.current.files

        if cursor ~= 0 and length ~= 0 then
            percent = ((cursor + 1) * 100) // length
        end

        if percent == 0 then
            percent = "Top"
        elseif percent == 100 then
            percent = "Bot"
        else
            percent = string.format("%d%%", percent)
        end

        return ui.Line({
            ui.Span(" "),
            ui.Span(separators.right):fg(alt.bg),
            ui.Span(" "..percent.." "):style(alt)
        })
    end

    function Status:position()
        local main = self:style().main
        local alt = self:style().alt
        local cursor = cx.active.current.cursor
        local lenght = #cx.active.current.files

        return ui.Line({
            ui.Span(separators.right):fg(main.bg):bg(alt.bg),
            ui.Span(string.format(" %d/%d ", cursor + 1, lenght)):style(main)
        })
    end
end

return { setup = setup }