from typing import Dict, Optional, List, Any, Tuple
from MaMa import MaMa

class MaMaMa(MaMa):
    def __init__(self, prog, stack=None) -> None:
        self.macros: Dict[str, Dict[str, Any]] = {}
        self.initial_macros: Dict[str, Dict[str, Any]] = {}
        self._macro_trace: Dict[int, List[str]] = {}
        super().__init__(prog, stack)

    def add_macro(self, name: str, prog: List[str] | Dict[int, str], args: List[str] = None) -> None:
        if isinstance(prog, list):
            prog = {i: instr for i, instr in enumerate(prog)}
        self.macros[name] = {"prog": prog, "args": args}
        self.initial_macros[name] = dict(self.macros[name])

    def run(self, max_steps: int = 1000):
        # automatically flatten macros before execution
        self._expand_macros_into_prog()
        return super().run(max_steps)

    # --- flatten macros recursively before execution ---
    def _expand_macros_into_prog(self) -> None:
        def expand(prog: Dict[int, str], stack: List[str]) -> List[Tuple[str, List[str]]]:
            out: List[Tuple[str, List[str]]] = []
            for _, call in sorted(prog.items()):
                name, args = self.decode(call)
                if name in self.macros:
                    out.extend(expand(self.macros[name]["prog"], stack + [name]))
                else:
                    out.append((call, list(stack)))
            return out

        expanded = expand(self.prog, [])
        self.prog = {i: call for i, (call, _) in enumerate(expanded)}
        self._macro_trace = {i: macros for i, (_, macros) in enumerate(expanded)}

    def structure(self) -> Dict[int, Dict[str, Any]]:
        return {
            i: {"call": call, "macros": self._macro_trace.get(i, []), "p_prog": self.p_prog}
            for i, call in sorted(self.prog.items())
        }