from lnx.logicnode.lnx_nodes import *


class DrawRectNode(LnxLogicTreeNode):
    """Draws a rectangle.

    @input Draw: Activate to draw the rectangle on this frame. The input must
        be (indirectly) called from an `On Render2D` node.
    @input Color: The color of the rectangle.
    @input Filled: Whether the rectangle is filled or only the outline is drawn.
    @input Strength: The line strength if the rectangle is not filled.
    @input Left/Center/Right: Horizontal anchor point of the rectangel.
        0 = Left, 1 = Center, 2 = Right
    @input Top/Middle/Bottom: Vertical anchor point of the rectangel.
        0 = Top, 1 = Middle, 2 = Bottom
    @input X/Y: Position of the anchor point in pixels.
    @input Width/Height: Size of the rectangle in pixels.
    @input Angle: Rotation angle in radians. Rectangle will be rotated cloclwiswe
        at the anchor point.

    @output Out: Activated after the rectangle has been drawn.

    @see [`kha.graphics2.Graphics.drawRect()`](http://kha.tech/api/kha/graphics2/Graphics.html#drawRect).
    @see [`kha.graphics2.Graphics.fillRect()`](http://kha.tech/api/kha/graphics2/Graphics.html#fillRect).
    """
    bl_idname = 'LNDrawRectNode'
    bl_label = 'Draw Rect'
    lnx_section = 'draw'
    lnx_version = 2

    def lnx_init(self, context):
        self.add_input('LnxNodeSocketAction', 'Draw')
        self.add_input('LnxColorSocket', 'Color', default_value=[1.0, 1.0, 1.0, 1.0])
        self.add_input('LnxBoolSocket', 'Filled', default_value=False)
        self.add_input('LnxFloatSocket', 'Strength', default_value=1.0)
        self.add_input('LnxIntSocket', '0/1/2 = Left/Center/Right', default_value=0)
        self.add_input('LnxIntSocket', '0/1/2 = Top/Middle/Bottom', default_value=0)
        self.add_input('LnxFloatSocket', 'X')
        self.add_input('LnxFloatSocket', 'Y')
        self.add_input('LnxFloatSocket', 'Width')
        self.add_input('LnxFloatSocket', 'Height')
        self.add_input('LnxFloatSocket', 'Angle')

        self.add_output('LnxNodeSocketAction', 'Out')

    def get_replacement_node(self, node_tree: bpy.types.NodeTree):
        if self.lnx_version not in (0, 1):
            raise LookupError()

        return NodeReplacement(
            "LNDrawRectNode", self.lnx_version,
            "LNDrawRectNode", 2,
            in_socket_mapping={0:0, 1:1, 2:2, 3:3, 4:6, 5:7, 6:8, 7:9},
            out_socket_mapping={0:0},
        )