from smolagents import (
    CodeAgent,
    DuckDuckGoSearchTool,
    HfApiModel,
    load_tool,
    tool
)
import datetime
import pytz
import yaml
from tools.final_answer import FinalAnswerTool

from Gradio_UI import GradioUI

# —————————————————————————————————————————————
# 1) Define your custom tools
# —————————————————————————————————————————————

@tool
def my_custom_tool(arg1: str, arg2: int) -> str:
    """A tool that does nothing yet.
    Args:
        arg1: the first argument
        arg2: the second argument
    """
    return "What magic will you build?"

@tool
def get_current_time_in_timezone(timezone: str) -> str:
    """Fetches the current local time in a specified timezone.
    Args:
        timezone: A string representing a valid timezone (e.g., 'America/New_York').
    """
    try:
        tz = pytz.timezone(timezone)
        local_time = datetime.datetime.now(tz).strftime("%Y-%m-%d %H:%M:%S")
        return f"The current local time in {timezone} is: {local_time}"
    except Exception as e:
        return f"Error fetching time for timezone '{timezone}': {e}"

# —————————————————————————————————————————————
# 2) Instantiate the built-in final_answer tool
# —————————————————————————————————————————————

final_answer = FinalAnswerTool()

# —————————————————————————————————————————————
# 3) Load & instantiate your LLModel
# —————————————————————————————————————————————

# model = HfApiModel(
#     model_id="Qwen/Qwen2.5-Coder-32B-Instruct",
#     max_tokens=2096,
#     temperature=0.5,
#     custom_role_conversions=None,
# )
model = HfApiModel(
    model_id="HuggingFaceH4/zephyr-7b-beta",
    max_tokens=2048,
    temperature=0.5,
    custom_role_conversions=None,
)


# —————————————————————————————————————————————
# 4) Load external tools
#    * **Do not** call the returned object!
# —————————————————————————————————————————————

duck_search = DuckDuckGoSearchTool()
image_generation_tool = load_tool(
    "agents-course/text-to-image",
    trust_remote_code=True
)

# —————————————————————————————————————————————
# 5) Load your custom prompt templates
# —————————————————————————————————————————————

with open("prompts.yaml", "r") as stream:
    prompt_templates = yaml.safe_load(stream)

# —————————————————————————————————————————————
# 6) Build your agent with **instances** of each tool
# —————————————————————————————————————————————

agent = CodeAgent(
    model=model,
    tools=[
        final_answer,                 # instance of FinalAnswerTool
        my_custom_tool,               # your @tool
        get_current_time_in_timezone, # your @tool
        duck_search,                  # instance of DuckDuckGoSearchTool
        image_generation_tool,        # the load_tool() instance
    ],
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates,
)

# —————————————————————————————————————————————
# 7) Launch the Gradio UI
# ————————————————————————————————————————————-

GradioUI(agent).launch()