from lnx.logicnode.lnx_nodes import *

class SwitchNode(LnxLogicTreeNode):
    """Activates the outputs depending of the value. If the "value" is equal to "case 1", the output "case 1" will be activated.

    @output Default: Activated if the input value does not match any case.
    """
    bl_idname = 'LNSwitchNode'
    bl_label = 'Switch Output'
    lnx_version = 4
    min_inputs = 2

    def __init__(self):
        super(SwitchNode, self).__init__()
        array_nodes[self.get_id_str()] = self

    def lnx_init(self, context):
        self.add_input('LnxNodeSocketAction', 'In')
        self.add_input('LnxDynamicSocket', 'Value')

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

    def draw_buttons(self, context, layout):
        row = layout.row(align=True)
        op = row.operator('lnx.node_add_input_output', text='New', icon='PLUS', emboss=True)
        op.node_index = self.get_id_str()
        op.in_socket_type = 'LnxDynamicSocket'
        op.out_socket_type = 'LnxNodeSocketAction'
        op.in_name_format = 'Case {0}'
        op.out_name_format = 'Case {0}'
        op.in_index_name_offset = -1
        op.out_index_name_offset = -1
        column = row.column(align=True)
        op = column.operator('lnx.node_remove_input_output', text='', icon='X', emboss=True)
        op.node_index = self.get_id_str()
        if len(self.inputs) == self.min_inputs:
            column.enabled = False

    def get_replacement_node(self, node_tree: bpy.types.NodeTree):
        if self.lnx_version not in (0, 3):
            raise LookupError()
            
        return NodeReplacement.Identity(self)