-- Example sessiond-seat configuration.
--
-- The configuration is an executable Lua script. Device callbacks receive a
-- device with the fields: subsystem, sysname, and syspath.

local seats = sessiond.seats

-- seat0 exists automatically and is the default unless changed below.
local seat0 = seats:get("seat0")

-- Match the first graphics card.
seat0:attach(function(dev)
    return dev.subsystem == "drm"
       and dev.sysname == "card0"
end)

-- Example of matching one exact sysfs path:
-- seat0:attach(function(dev)
--     return dev.syspath == "/sys/devices/example/device"
-- end)

local seat1 = seats:create("seat1")

-- Session matchers can assign sessions independently of device matchers.
-- The first matcher that returns true wins.
seat1:session(function(session)
    return session.class == "user"
       and session.active == "active"
end)

-- Match the second graphics card and its input devices.
seat1:attach(function(dev)
    return dev.subsystem == "drm"
       and dev.sysname == "card1"
end)

seat1:attach(function(dev)
    return dev.subsystem == "input"
       and dev.syspath:match("/usb%d+/.*/input") ~= nil
end)

-- Any configured seat can become the default seat.
-- seat1:default()