--[[
  This type of scripts uses the same API as GamepadFX scripts, but has extra inputs. Since 0.3.0, these
  scripts can override inputs without mouse steering as well.
]]

local settings = ac.INIConfig.scriptSettings():mapConfig({
  GAMMA = {
    GAS = 1,
    BRAKE = 1,
    STEERING = 1,
    HANDBRAKE = 1,
    CLUTCH = 1,
  }
})

local exchange = ac.writeMemoryMappedFile('AcTools.CSP.Wooting.v0', {
  _explicit = ac.StructItem.explicit(),
  key = ac.StructItem.uint32(),
  frame = ac.StructItem.uint32(),
  frames = ac.StructItem.array(ac.StructItem.struct {
    keys = ac.StructItem.array(ac.StructItem.uint8(), 256)
  }, 4)
})

exchange.key = math.randomKey()

local died = false
os.runConsoleProcess({
  filename = 'C:/Games/AssettoCorsa/extension/internal/plugins/AcTools.Wooting.exe',
  environment = {
    ACCSPWOOTING_KEY = 'AcTools.CSP.Wooting.v0',
    ACCSPWOOTING_ID = tostring(exchange.key)
  },
  inheritEnvironment = true
}, function(err, data)
  died = true
  if err then
    ac.error(err)
  else
    ac.warn(data.exitCode, data.stderr, data.stdout)
  end
end)

local buttons = ac.INIConfig.controlsConfig():mapConfig({
  KEYBOARD = {
    BRAKE = -1,
    GAS = -1,
    LEFT = -1,
    RIGHT = -1,
  },
  HANDBRAKE = {
    KEY = -1
  },
  __EXT_KEYBOARD_CLUTCH = {
    KEY = -1
  },
})

local function readButton(btn, gamma)
  return btn >= 0 and btn < 256 and exchange.frames[exchange.frame].keys[btn] / 255 or 0
end

local steer = 0

---@param dt number @Time passed in seconds.
---@param deltaX number @Horizontal mouse shift since the last frame, relative, can be adjusted in controls settings.
---@param deltaY number @Vertical mouse shift since the last frame, relative, can be adjusted in controls settings.
---@param useMouseButtons boolean @Please use mouse buttons for controls only if this value is `true`, and keep in mind middle mouse button might be used to toggle mouse steering in general.
---@param useMouseSteering boolean @If mouse steering is active or not. If not active, `script.update()` won’t be called unless `[CORE] MOUSELESS` in manifest is set to `1`. If it is inactive, deltaX, deltaY and useMouseButtons are `0` and `false`.
function script.update(dt, deltaX, deltaY, useMouseButtons, useMouseSteering)
  if died then
    ac.setMessage('Wooting', 'Wooting plugin has died')
    ac.skipProcessing() -- just use the original logic instead
    return
  end

  local state = ac.getJoypadState()
  if useMouseSteering and useMouseButtons then
    -- Gas and brake will be set by original implementation, taking into account AC mouse steering traction control
  else
    state.gas = readButton(buttons.KEYBOARD.GAS, settings.GAMMA.GAS)
    state.brake = readButton(buttons.KEYBOARD.BRAKE, settings.GAMMA.BRAKE)
  end
  ac.debug('deltaX', deltaX)
  if useMouseSteering then
    ac.overrideKeyboard() -- do not use original AC keyboard logic, we have our fancy inputs
    steer = math.clamp(steer + deltaX, -1, 1)
    state.steer = steer
    ac.debug('steer', steer)
  else
    steer = 0
    state.steer = readButton(buttons.KEYBOARD.RIGHT, settings.GAMMA.STEERING) - readButton(buttons.KEYBOARD.LEFT, settings.GAMMA.STEERING)
  end
  state.handbrake = readButton(buttons.HANDBRAKE.KEY, settings.GAMMA.HANDBRAKE)
  if buttons.__EXT_KEYBOARD_CLUTCH.KEY >= 0 then
    state.clutch = 1 - readButton(buttons.__EXT_KEYBOARD_CLUTCH.KEY, settings.GAMMA.CLUTCH)
  end
end