package remdeshid

import "github.com/tarm/serial"

type EventType int

const (
	EventTypeKeyPress EventType = iota
	EventTypeKeyRelease
	EventTypeMouseMove
	EventTypeMousePress
	EventTypeMouseRelease
	EventTypeMouseScroll
	EventTypeHIDCommand
)

const MinCusorEventInterval = 36 // Minimum interval between cursor events in milliseconds

type Config struct {
	/* Serial port configs */
	PortName          string
	BaudRate          int
	ScrollSensitivity uint8 // Mouse scroll sensitivity, range 0x00 to 0x7E
}

type HIDState struct {
	/* Keyboard state */
	Modkey          uint8    // Modifier key state
	KeyboardButtons [6]uint8 // Keyboard buttons state
	Leds            uint8    // LED state

	/* Mouse state */
	MouseButtons uint8 // Mouse buttons state
	MouseX       int16 // Mouse X movement
	MouseY       int16 // Mouse Y movement
}

// Controller is a struct that represents a HID controller
type Controller struct {
	Config              *Config
	serialPort          *serial.Port
	hidState            HIDState // Current state of the HID device
	serialRunning       bool
	writeQueue          chan []byte
	incomgDataQueue     chan []byte // Queue for incoming data
	lastCursorEventTime int64
}

type HIDCommand struct {
	Event         EventType `json:"event"`
	Keycode       int       `json:"keycode,omitempty"`
	IsRightModKey bool      `json:"is_right_modifier_key,omitempty"` // true if the key is a right modifier key (Ctrl, Shift, Alt, GUI)
	MouseAbsX     int       `json:"mouse_x,omitempty"`               // Absolute mouse position in X direction
	MouseAbsY     int       `json:"mouse_y,omitempty"`               // Absolute mouse position in Y direction
	MouseRelX     int       `json:"mouse_rel_x,omitempty"`           // Relative mouse movement in X direction
	MouseRelY     int       `json:"mouse_rel_y,omitempty"`           // Relative mouse movement in Y direction
	MouseButton   int       `json:"mouse_button,omitempty"`          //0x01 for left click, 0x02 for right click, 0x03 for middle clicks
	MouseScroll   int       `json:"mouse_scroll,omitempty"`          // Positive for scroll up, negative for scroll down, max 127
}