function sysinfo()
    local mem = io.popen("free -h | awk '/^Mem/ {print $3 \"/\" $2}'"):read("*a")
    local cpu = io.popen("top -bn1 | grep 'Cpu(s)' | awk '{print $2 + $4 \"%\"}'"):read("*a")
    local battery = io.popen("acpi -b | awk -F', ' '{print $2}'"):read("*a")
    local time = os.date("%Y-%m-%d %H:%M:%S")
    local monitor = hl.get_active_monitor()
    local workspace_id = monitor.active_workspace.id
    local mesg = "System Info"
        .. "\nDate: " .. time
        .. "\nFocused monitor: " .. monitor.name
        .. "\nWorkspace: " .. workspace_id
        .. "\nBattery: " .. battery
        .. "CPU: " .. cpu .. " MEM: " .. mem

    hl.notification.create({ text = mesg, icon = "hint", duration = 5000 })
end

function toggle_pin()
    local win = hl.get_active_window()
    if win == nil then
        return
    end

    local is_pinned = win.pinned
    hl.dispatch(hl.dsp.window.pin({ action = is_pinned and "unset" or "set" }))
end

function dispatch_focus_or_launch(opts)
    return function()
        focus_or_launch(opts)
    end
end

function focus_or_launch(opts)
    local match = opts.match
    local cmd = opts.cmd
    local field = opts.field or "class" -- class, title, initialClass, initialTitle
    local use_workspace = opts.use_workspace ~= false

    local clients = hl.get_windows()

    for _, client in ipairs(clients) do
        local value = client[field]
        if value and string.find(string.lower(value), string.lower(match), 1, true) then
            if use_workspace and client.workspace and client.workspace.id then
                hl.dispatch(hl.dsp.focus({
                    workspace = client.workspace.id,
                    on_current_monitor = true,
                }))
            end
            hl.dispatch(hl.dsp.focus({
                window = "address:" .. client.address
            }))

            local layout = client.layout
            if not (layout and layout.name == "master" and layout.is_master) then
                hl.dispatch(hl.dsp.layout("swapwithmaster"))
            end
            return
        end
    end

    hl.exec_cmd(cmd)
end

function fetch_or_launch(opts)
    local match = opts.match
    local cmd = opts.cmd
    local field = opts.field or "class" -- class, title, initialClass, initialTitle
    local use_workspace = opts.use_workspace ~= false

    local clients = hl.get_windows()

    local active_workspace = hl.get_active_workspace()

    for _, client in ipairs(clients) do
        local value = client[field]
        if value and string.find(string.lower(value), string.lower(match), 1, true) then
            if use_workspace and client.workspace and client.workspace.id then
                hl.dispatch(hl.dsp.window.move({
                    workspace = active_workspace,
                    on_current_monitor = true,
                    window = client,
                }))
            end

            hl.dispatch(hl.dsp.focus({ window = client }))

            local layout = client.layout
            if not (layout and layout.name == "master" and layout.is_master) then
                hl.dispatch(hl.dsp.layout("swapwithmaster"))
            end
            return
        end
    end

    hl.exec_cmd(cmd)
end

function toggle_master()
    local ws = hl.get_active_workspace()
    if not ws then
        return
    end

    local mfact = nil

    for _, win in ipairs(ws:get_windows()) do
        local layout = win.layout
        if layout and layout.name == "master" and layout.is_master then
            mfact = math.floor(layout.perc_master * 100 + 0.5) / 100
            break
        end
    end

    if mfact == 0.7 then
        mfact = 0.5
    else
        mfact = 0.7
    end
    hl.dispatch(hl.dsp.layout("mfact exact " .. mfact))
end

function toggle_float_with_limit()
    local win = hl.get_active_window()
    if win == nil then
        return
    end

    local was_floating = win.floating
    hl.dispatch(hl.dsp.window.float({ action = "toggle" }))
    if was_floating then
        return
    end

    local mon = win.monitor and hl.get_monitor(win.monitor) or hl.get_active_monitor()
    if mon == nil or mon.size == nil or win == nil or win.size == nil then
        return
    end

    local max_width = math.floor(mon.width * 0.8)
    local max_height = math.floor(mon.height * 0.8)
    local scale = math.max(1, win.size.x / max_width, win.size.y / max_height)
    hl.notification.create({
        text = "Scale " ..
            scale .. " Max float size: " .. win.size.x / max_width .. "x" .. win.size.y / max_height,
        duration = 2000,
        icon =
        "hint"
    })
    if scale > 1 then
        hl.dispatch(hl.dsp.window.resize({
            x = math.floor(max_width),
            y = math.floor(max_height),
            relative = false,
            window = win
        }))
    end
end

function cycle_next_window(opts)
    return function()
        hl.dispatch(hl.dsp.window.cycle_next(opts))

        local win = hl.get_active_window()
        if win and win.floating then
            hl.dispatch(hl.dsp.window.alter_zorder({ window = win, mode = "top" }))
        end
    end
end

function window_resize_percentage(px, py)
    local win = hl.get_active_window()
    if win == nil or win.monitor == nil then
        return
    end
    local mon = hl.get_monitor(win.monitor)

    if mon == nil or mon.size == nil or mon.size.height == nil or mon.size.width == nil then
        return
    end
    local sx = math.floor(mon.size.width * px)
    local sy = math.floor(mon.size.height * py)
    if not win.floating then
        hl.dispatch(hl.dsp.window.float({ action = "set" }))
    end
    if win.fullscreen then
        hl.dispatch(hl.dsp.window.fullscreen({ action = "unset" }))
    end
    hl.dispatch(hl.dsp.window.resize({ x = sx, y = sy, relative = false }))
end

function toggle_master_scrolling()
    local current = hl.get_config("general.layout")
    local next_layout = current == "master" and "scrolling" or "master"

    hl.config({ general = { layout = next_layout } })
end