from __future__ import annotations
from typing import Any

from openenv.core.env_client import EnvClient        # ✅ correct import
from openenv.core.client_types import StepResult     # ✅ correct import

from models import TrustAction, TrustObservation, TrustState, ContentSignals


class TrustSafetyEnv(EnvClient[TrustAction, TrustObservation, TrustState]):  # ✅ EnvClient, 3 generics
    """
    Typed WebSocket/HTTP client for the Trust & Safety RL Environment.

    Usage (sync — for scripts, GRPOTrainer):
        env = TrustSafetyEnv(base_url="http://localhost:8000").sync()
        result = env.reset()
        result = env.reset(episode_id="T-001")
        result = env.step(TrustAction(action_type="use_tool", tool_name="view_policy"))
        result = env.step(TrustAction(action_type="final_decision", final_decision="REMOVE"))
        state  = env.state()
        env.close()

    Usage (async):
        async with TrustSafetyEnv(base_url="http://localhost:8000") as env:
            result = await env.reset()
    """

    def step_payload(self, action: TrustAction) -> dict:          # ✅ NO underscore
        payload: dict[str, Any] = {"action_type": action.action_type}

        if action.tool_name is not None:
            payload["tool_name"] = action.tool_name

        if action.signals is not None:
            s = action.signals
            payload["signals"] = {
                "target":                   s.target,
                "is_protected_class":       s.is_protected_class,
                "toxicity_level":           float(s.toxicity_level),
                "is_direct_attack":         s.is_direct_attack,
                "context_type":             s.context_type,
                "intent":                   s.intent,
                "confidence":               float(s.confidence),
                "abusive_language_present": s.abusive_language_present,
                "content_flags":            list(s.content_flags),
            }

        if action.final_decision is not None:
            payload["final_decision"] = action.final_decision

        return payload

    def parse_result(self, payload: dict) -> StepResult[TrustObservation]:   # ✅ NO underscore
        obs_data = payload.get("observation", payload)

        obs = TrustObservation(
            ticket_id           = obs_data.get("ticket_id", ""),
            post_text           = obs_data.get("post_text", ""),
            image_description   = obs_data.get("image_description", ""),
            comments_found      = obs_data.get("comments_found"),
            user_history_found  = obs_data.get("user_history_found"),
            entity_status_found = obs_data.get("entity_status_found"),
            policy_found        = obs_data.get("policy_found"),
            extracted_signals   = obs_data.get("extracted_signals"),
            validation_result   = obs_data.get("validation_result"),
            step_number         = obs_data.get("step_number", 0),
            info                = obs_data.get("info"),
            done                = payload.get("done", obs_data.get("done", False)),
            reward              = payload.get("reward", obs_data.get("reward")),
        )

        return StepResult(
            observation = obs,
            reward      = payload.get("reward", obs_data.get("reward")),
            done        = payload.get("done", obs_data.get("done", False)),
        )

    def parse_state(self, payload: dict) -> TrustState:           # ✅ NO underscore
        return TrustState(
            episode_id        = payload.get("episode_id"),
            step_count        = payload.get("step_count", 0),
            current_task_id   = payload.get("current_task_id"),
            difficulty        = payload.get("difficulty"),
            ambiguity_level   = payload.get("ambiguity_level"),
            risk_level        = payload.get("risk_level"),
            tools_used        = payload.get("tools_used", []),
            signals_extracted = payload.get("signals_extracted", False),
            is_done           = payload.get("is_done", False),
        )