from dataclasses import dataclass
from typing import Union

from effects import DamageEffect
from enums import CombatSide
from jsonable import JsonableDataclassArgs
from model import Action, Target, Effect, Character, Clock, CombatStatus, log_substitute


@dataclass(**JsonableDataclassArgs)
class RoleplayAction(Action):
    text: str
    user: Target | None
    effects: tuple[Effect, ...]

    def do(self, combat: "CombatStatus", source: Union["Action", "Effect", None] = None) -> "CombatStatus":
        for effect in self.effects:
            combat = effect.do(combat, self)
        return combat

    def undo(self, combat: "CombatStatus", source: Union["Action", "Effect", None] = None) -> "CombatStatus":
        for effect in reversed(self.effects):
            combat = effect.undo(combat, self)
        return combat

    def log_message(self, user: Target | None = None) -> str | None:
        return "\n  ".join(
            [log_substitute(self.text, user=self.user, target=self.user)] +
            [log_substitute(t, user=self.user, target=self.user)
             for t in [v.log_message(self.user) for v in self.effects]
             if t is not None]
        )


@dataclass(**JsonableDataclassArgs)
class AbilityAction(Action):
    name: str
    user: Target | None
    costs: tuple[DamageEffect, ...]
    effects: tuple[Effect, ...]


@dataclass(**JsonableDataclassArgs)
class ModifyCharacterAction(Action):
    index: int
    old_character_data: Character | None
    new_character_data: Character | None

    def __post_init__(self):
        if self.old_character_data is None and self.new_character_data is None:
            raise ValueError("At least one of old_character_data or new_character_data must be non-None")


@dataclass(**JsonableDataclassArgs)
class ModifyClockAction(Action):
    index: int
    old_clock_data: Clock | None
    new_clock_data: Clock | None

    def __post_init__(self):
        if self.old_clock_data is None and self.new_clock_data is None:
            raise ValueError("At least one of old_clock_data or new_clock_data must be non-None")


@dataclass(**JsonableDataclassArgs)
class EndTurnAction(Action):
    turn_ending_index: int
    activating_side: CombatSide


@dataclass(**JsonableDataclassArgs)
class StartTurnAction(Action):
    turn_starting_index: int
    old_active_side: CombatSide


@dataclass(**JsonableDataclassArgs)
class StartRoundAction(Action):
    last_round: int
    old_active_side: CombatSide
    old_turns_remaining: tuple[int, ...]
    next_round: int
    activating_side: CombatSide


@dataclass(**JsonableDataclassArgs)
class StartBattleAction(Action):
    starting_side: CombatSide
    starting_round: int


@dataclass(**JsonableDataclassArgs)
class EndBattleAction(Action):
    old_round_number: int
    old_active_side: CombatSide
    old_starting_side: CombatSide
    old_turns_remaining: tuple[int, ...]