#!/usr/bin/env python3

import hammer_vlsi
from hammer_vlsi import CLIDriver, HammerToolHookAction

from typing import Dict, Callable, Optional, List

def example_place_tap_cells(x: hammer_vlsi.HammerTool) -> bool:
    x.append('''
# TODO
# Place custom TCL here
''')
    return True

def example_add_fillers(x: hammer_vlsi.HammerTool) -> bool:
    x.append('''
# TODO
# Place custom TCL here
''')
    return True

def example_tool_settings(x: hammer_vlsi.HammerTool) -> bool:
    x.append('''
# TODO
# Place custom TCL here
''')
    return True

class ExampleDriver(CLIDriver):
    def get_extra_par_hooks(self) -> List[HammerToolHookAction]:
        extra_hooks = [

            # Default set of steps can be found in the CAD tool plugin's __init__.py

            # make_pre_insertion_hook will execute the custom hook before the specified step
            hammer_vlsi.HammerTool.make_pre_insertion_hook("route_design", example_add_fillers),  # SYNTAX: make_pre_insertion_hook("EXISTING_STEP", INSERTED_HOOK)
            # make_post_insertion_hook will execute the custom hook after the specified step
            hammer_vlsi.HammerTool.make_post_insertion_hook("init_design", example_tool_settings),
            # make_replacement_hook will replace the specified step with a custom hook
            hammer_vlsi.HammerTool.make_replacement_hook("place_tap_cells", example_place_tap_cells),
            # make_removal_hook will remove the specified step from the flow
            hammer_vlsi.HammerTool.make_removal_hook("place_bumps")
            # The target step in any of the above calls may be a default step or another one of your custom hooks
        ]
        return extra_hooks 

if __name__ == '__main__':
    ExampleDriver().main()