-- See https://wayland.freedesktop.org/libinput/doc/latest/lua-plugins.html

-- libinput and evdev are plugin globals tables

version = libinput:register({1}) -- no idea what version should be specified here

local VID = 0x046D -- Vendor: Logitech
local PID = 0x4085 -- Product: G604 Mouse

libinput:log_debug("Event viewer plugin initialized on version " .. version)
libinput:log_debug("Locating device " .. string.format("%x", VID) .. ":" .. string.format("%x", PID))

libinput:connect("new-evdev-device", function (device)
    local info = device:info()
    if info.vid == VID and info.pid == PID then
        local devName = device:name()
        libinput:log_debug("Found " .. devName)

        -- list device enabled usages/events
        for uk, uv in pairs(evdev) do
            for duk, _ in pairs(device:usages()) do
                if uv == duk then
                    libinput:log_debug(uk .. " = " .. tostring(duk))
                end
            end
        end

        --[[
        -- previous attempt to disable hi-res scrolling before quirks solution
        if device:usages()[evdev.REL_WHEEL_HI_RES] then
            libinput:log_info(devName .. ": disabling hi-res scoll")
            device:disable_evdev_usage(evdev.REL_WHEEL_HI_RES)
        end
        ]]

        device:connect("evdev-frame", function (device, frame, timestamp)
            libinput:log_debug("-----") -- separate frames
            for _, event in ipairs(frame) do
                --[[
                    REL_WHEEL = 131080
                    REL_WHEEL_HI_RES = 131083
                    Scroll up: 131083:15
                    Scroll down: 131083:-15
                ]]
                libinput:log_debug("EVENT " .. event.usage .. ":" .. event.value)
            end
            return frame
        end)

        --[[
        device:connect("device-removed", function (device, frame, timestamp)
            libinput:unregister() -- prevents this plugin being enabled after a disconnect and reconnect
        end)
        ]]
    end
end)