# ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========

import asyncio
import logging
from typing import Literal

from dotenv import load_dotenv
from fastapi import APIRouter, Response
from pydantic import BaseModel

from app.component.environment import sanitize_env_path, set_user_env_path
from app.model.chat import NewAgent, UpdateData
from app.service.task import (
    Action,
    ActionNewAgent,
    ActionStartData,
    ActionStopData,
    ActionTakeControl,
    ActionUpdateTaskData,
    get_task_lock,
    task_locks,
)

logger = logging.getLogger("task_controller")

router = APIRouter()


@router.post("/task/{id}/start", name="start task")
def start(id: str):
    task_lock = get_task_lock(id)
    logger.info("Starting task", extra={"task_id": id})
    asyncio.run(task_lock.put_queue(ActionStartData(action=Action.start)))
    logger.info("Task started successfully", extra={"task_id": id})
    return Response(status_code=201)


@router.put("/task/{id}", name="update task")
def put(id: str, data: UpdateData):
    logger.info(
        "Updating task",
        extra={"task_id": id, "task_items_count": len(data.task)},
    )
    logger.debug(
        "Update task data",
        extra={"task_id": id, "data": data.model_dump_json()},
    )
    task_lock = get_task_lock(id)
    asyncio.run(
        task_lock.put_queue(
            ActionUpdateTaskData(action=Action.update_task, data=data)
        )
    )
    logger.info("Task updated successfully", extra={"task_id": id})
    return Response(status_code=201)


class TakeControl(BaseModel):
    action: Literal[Action.pause, Action.resume]


@router.put("/task/{id}/take-control", name="take control pause or resume")
def take_control(id: str, data: TakeControl):
    logger.info(
        "Task control action", extra={"task_id": id, "action": data.action}
    )
    task_lock = get_task_lock(id)
    asyncio.run(task_lock.put_queue(ActionTakeControl(action=data.action)))
    logger.info(
        "Task control action completed",
        extra={"task_id": id, "action": data.action},
    )
    return Response(status_code=204)


@router.post("/task/{id}/add-agent", name="add new agent")
def add_agent(id: str, data: NewAgent):
    logger.info(
        "Adding new agent to task",
        extra={"task_id": id, "agent_name": data.name},
    )
    logger.debug(
        "New agent data",
        extra={"task_id": id, "agent_data": data.model_dump_json()},
    )
    # Set user-specific environment path for this thread
    set_user_env_path(data.env_path)
    # Load environment with validated path
    safe_env_path = sanitize_env_path(data.env_path)
    if safe_env_path:
        load_dotenv(dotenv_path=safe_env_path)
    asyncio.run(
        get_task_lock(id).put_queue(ActionNewAgent(**data.model_dump()))
    )
    logger.info(
        "Agent added to task", extra={"task_id": id, "agent_name": data.name}
    )
    return Response(status_code=204)


@router.delete("/task/stop-all", name="stop all tasks")
def stop_all():
    logger.warning("Stopping all tasks", extra={"task_count": len(task_locks)})
    for task_lock in task_locks.values():
        asyncio.run(task_lock.put_queue(ActionStopData()))
    logger.info("All tasks stopped", extra={"task_count": len(task_locks)})
    return Response(status_code=204)