import json
import logging
from typing import Any

import gradio as gr
import numpy as np
import pandas as pd
from datasets import Dataset

from components.model_pipeline.model_pipeline import PipelineInterface, PipelineState
from submission import submit
from workflows.qb.multi_step_agent import MultiStepTossupAgent
from workflows.qb.simple_agent import SimpleTossupAgent
from workflows.structs import ModelStep, Workflow

from .commons import get_qid_selector
from .plotting import (
    create_scatter_pyplot,
    create_tossup_confidence_pyplot,
    create_tossup_html,
    update_tossup_plot,
)
from .utils import evaluate_prediction

# TODO: Error handling on run tossup and evaluate tossup and show correct messages
# TODO: ^^ Same for Bonus


def add_model_scores(model_outputs: list[dict], clean_answers: list[str], run_indices: list[int]) -> list[dict]:
    """Add model scores to the model outputs."""
    for output, run_idx in zip(model_outputs, run_indices):
        output["score"] = evaluate_prediction(output["answer"], clean_answers)
        output["token_position"] = run_idx + 1
    return model_outputs


def prepare_buzz_evals(
    run_indices: list[int], model_outputs: list[dict]
) -> tuple[list[str], list[tuple[int, float, bool]]]:
    """Process text into tokens and assign random values for demonstration."""
    if not run_indices:
        logging.warning("No run indices provided, returning empty results")
        return [], []
    eval_points = []
    for i, v in zip(run_indices, model_outputs):
        eval_points.append((int(i), v))

    return eval_points


def initialize_eval_interface(example, model_outputs: list[dict]):
    """Initialize the interface with example text."""
    try:
        tokens = example["question"].split()
        run_indices = example["run_indices"]
        answer = example["answer_primary"]
        clean_answers = example["clean_answers"]
        eval_points = prepare_buzz_evals(run_indices, model_outputs)

        if not tokens:
            return "<div>No tokens found in the provided text.</div>", pd.DataFrame(), "{}"
        highlighted_index = next((int(i) for i, v in eval_points if v["buzz"] == 1), -1)
        html_content = create_tossup_html(tokens, answer, clean_answers, run_indices, eval_points)
        plot_data = create_tossup_confidence_pyplot(tokens, eval_points, highlighted_index)

        # Store tokens, values, and buzzes as JSON for later use
        state = json.dumps({"tokens": tokens, "values": eval_points})

        return html_content, plot_data, state
    except Exception as e:
        logging.error(f"Error initializing interface: {e}", exc_info=True)
        return f"<div>Error initializing interface: {str(e)}</div>", pd.DataFrame(), "{}"


def process_tossup_results(results: list[dict], top_k_mode: bool = False) -> pd.DataFrame:
    """Process results from tossup mode and prepare visualization data."""
    # Create DataFrame for detailed results
    if top_k_mode:
        raise ValueError("Top-k mode not supported for tossup mode")
    return pd.DataFrame(
        [
            {
                "Token Position": r["token_position"],
                "Correct?": "✅" if r["score"] == 1 else "❌",
                "Confidence": r["confidence"],
                "Prediction": r["answer"],
            }
            for r in results
        ]
    )


def validate_workflow(workflow: Workflow):
    """
    Validate that a workflow is properly configured for the tossup task.

    Args:
        workflow (Workflow): The workflow to validate

    Raises:
        ValueError: If the workflow is not properly configured
    """
    if not workflow.steps:
        raise ValueError("Workflow must have at least one step")

    # Ensure all steps are properly configured
    for step_id, step in workflow.steps.items():
        validate_model_step(step)

    # Check that the workflow has the correct structure
    input_vars = set(workflow.inputs)
    if "question" not in input_vars:
        raise ValueError("Workflow must have 'question' as an input")

    output_vars = set(workflow.outputs)
    if not any("answer" in out_var for out_var in output_vars):
        raise ValueError("Workflow must produce an 'answer' as output")
    if not any("confidence" in out_var for out_var in output_vars):
        raise ValueError("Workflow must produce a 'confidence' score as output")


def validate_model_step(model_step: ModelStep):
    """
    Validate that a model step is properly configured for the tossup task.

    Args:
        model_step (ModelStep): The model step to validate

    Raises:
        ValueError: If the model step is not properly configured
    """
    # Check required fields
    if not model_step.model or not model_step.provider:
        raise ValueError("Model step must have both model and provider specified")

    if model_step.call_type != "llm":
        raise ValueError("Model step must have call_type 'llm'")

    # Validate temperature for LLM steps
    if model_step.temperature is None:
        raise ValueError("Temperature must be specified for LLM model steps")

    if not (0.0 <= model_step.temperature <= 1.0):
        raise ValueError(f"Temperature must be between 0.0 and 1.0, got {model_step.temperature}")

    # Validate input fields
    input_field_names = {field.name for field in model_step.input_fields}
    if "question" not in input_field_names:
        raise ValueError("Model step must have a 'question' input field")

    # Validate output fields
    output_field_names = {field.name for field in model_step.output_fields}
    if "answer" not in output_field_names:
        raise ValueError("Model step must have an 'answer' output field")
    if "confidence" not in output_field_names:
        raise ValueError("Model step must have a 'confidence' output field")

    # Validate confidence output field is of type float
    for field in model_step.output_fields:
        if field.name == "confidence" and field.type != "float":
            raise ValueError("The 'confidence' output field must be of type 'float'")


class TossupInterface:
    """Gradio interface for the Tossup mode."""

    def __init__(self, app: gr.Blocks, dataset: Dataset, model_options: dict, defaults: dict):
        """Initialize the Tossup interface."""
        logging.info(f"Initializing Tossup interface with dataset size: {len(dataset)}")
        self.ds = dataset
        self.model_options = model_options
        self.app = app
        self.defaults = defaults
        self.output_state = gr.State(value="{}")
        self.render()

    def _render_model_interface(self, workflow: Workflow, simple: bool = True):
        """Render the model interface."""
        self.pipeline_interface = PipelineInterface(
            workflow,
            simple=simple,
            model_options=list(self.model_options.keys()),
        )
        with gr.Row():
            self.buzz_t_slider = gr.Slider(
                minimum=0.5,
                maximum=1.0,
                value=self.defaults["buzz_threshold"],
                step=0.01,
                label="Buzz Threshold",
            )
            self.early_stop_checkbox = gr.Checkbox(
                value=self.defaults["early_stop"],
                label="Early Stop",
                info="Stop early if already buzzed",
            )

    def _render_qb_interface(self):
        """Render the quizbowl interface."""
        with gr.Row(elem_classes="bonus-header-row form-inline"):
            self.qid_selector = get_qid_selector(len(self.ds))
            self.run_btn = gr.Button("Run on Tossup Question", variant="secondary")
        self.question_display = gr.HTML(label="Question", elem_id="tossup-question-display")
        with gr.Row():
            self.confidence_plot = gr.Plot(
                label="Buzz Confidence",
                format="webp",
            )
        self.results_table = gr.DataFrame(
            label="Model Outputs",
            value=pd.DataFrame(columns=["Token Position", "Correct?", "Confidence", "Prediction"]),
        )
        with gr.Row():
            self.eval_btn = gr.Button("Evaluate", variant="primary")

        with gr.Accordion("Model Submission", elem_classes="model-submission-accordion", open=True):
            with gr.Row():
                self.model_name_input = gr.Textbox(label="Model Name")
                self.description_input = gr.Textbox(label="Description")
            with gr.Row():
                gr.LoginButton()
                self.submit_btn = gr.Button("Submit", variant="primary")
            self.submit_status = gr.HTML(label="Submission Status")

    def render(self):
        """Create the Gradio interface."""

        self.hidden_input = gr.Textbox(value="", visible=False, elem_id="hidden-index")

        workflow = self.defaults["init_workflow"]

        with gr.Row():
            # Model Panel
            with gr.Column(scale=1):
                self._render_model_interface(workflow, simple=self.defaults["simple_workflow"])

            with gr.Column(scale=1):
                self._render_qb_interface()

        self._setup_event_listeners()

    def validate_workflow(self, pipeline_state: PipelineState):
        """Validate the workflow."""
        try:
            validate_workflow(pipeline_state.workflow)
        except Exception as e:
            raise gr.Error(f"Error validating workflow: {str(e)}")

    def get_new_question_html(self, question_id: int) -> str:
        """Get the HTML for a new question."""
        if question_id is None:
            logging.error("Question ID is None. Setting to 1")
            question_id = 1
        try:
            example = self.ds[question_id - 1]
            question_tokens = example["question"].split()
            return create_tossup_html(
                question_tokens, example["answer_primary"], example["clean_answers"], example["run_indices"]
            )
        except Exception as e:
            return f"Error loading question: {str(e)}"

    def get_model_outputs(self, example: dict, pipeline_state: PipelineState, buzz_threshold: float, early_stop: bool):
        """Get the model outputs for a given question ID."""
        question_runs = []
        tokens = example["question"].split()
        for run_idx in example["run_indices"]:
            question_runs.append(" ".join(tokens[: run_idx + 1]))

        workflow = pipeline_state.workflow
        if len(workflow.steps) > 1:
            agent = MultiStepTossupAgent(workflow, buzz_threshold)
        else:
            agent = SimpleTossupAgent(workflow, buzz_threshold)
        outputs = list(agent.run(question_runs, early_stop=early_stop))
        outputs = add_model_scores(outputs, example["clean_answers"], example["run_indices"])
        return outputs

    def single_run(
        self,
        question_id: int,
        pipeline_state: PipelineState,
        buzz_threshold: float,
        early_stop: bool = True,
    ) -> tuple[str, Any, Any]:
        """Run the agent in tossup mode with a system prompt."""
        try:
            # Validate inputs
            question_id = int(question_id - 1)
            if not self.ds or question_id < 0 or question_id >= len(self.ds):
                return "Invalid question ID or dataset not loaded", None, None
            example = self.ds[question_id]
            outputs = self.get_model_outputs(example, pipeline_state, buzz_threshold, early_stop)

            # Process results and prepare visualization data
            tokens_html, plot_data, output_state = initialize_eval_interface(example, outputs)
            df = process_tossup_results(outputs)
            return (
                tokens_html,
                gr.update(value=plot_data, label=f"Buzz Confidence on Question {question_id + 1}"),
                gr.update(value=output_state),
                gr.update(value=df, label=f"Model Outputs for Question {question_id + 1}"),
            )
        except Exception as e:
            import traceback

            error_msg = f"Error: {str(e)}\n{traceback.format_exc()}"
            return error_msg, None, None

    def evaluate(self, pipeline_state: PipelineState, buzz_threshold: float, progress: gr.Progress = gr.Progress()):
        """Evaluate the tossup questions."""
        try:
            # Validate inputs
            if not self.ds or not self.ds.num_rows:
                return "No dataset loaded", None, None

            buzz_counts = 0
            correct_buzzes = 0
            token_positions = []
            correctness = []
            for example in progress.tqdm(self.ds, desc="Evaluating tossup questions"):
                model_outputs = self.get_model_outputs(example, pipeline_state, buzz_threshold, early_stop=True)
                if model_outputs[-1]["buzz"]:
                    buzz_counts += 1
                    if model_outputs[-1]["score"] == 1:
                        correct_buzzes += 1
                    token_positions.append(model_outputs[-1]["token_position"])
                    correctness.append(model_outputs[-1]["score"])
            buzz_accuracy = correct_buzzes / buzz_counts
            df = pd.DataFrame(
                [
                    {
                        "Avg Buzz Position": f"{np.mean(token_positions):.2f}",
                        "Buzz Accuracy": f"{buzz_accuracy:.2%}",
                        "Total Score": f"{correct_buzzes}/{len(self.ds)}",
                    }
                ]
            )
            plot_data = create_scatter_pyplot(token_positions, correctness)
            return (
                gr.update(value=df, label="Scores on Sample Set"),
                gr.update(value=plot_data, label="Buzz Positions on Sample Set"),
            )
        except Exception:
            import traceback

            logging.error(f"Error evaluating tossups: {traceback.format_exc()}")
            return "Error evaluating tossups", None, None

    def submit_model(
        self, model_name: str, description: str, pipeline_state: PipelineState, profile: gr.OAuthProfile = None
    ):
        """Submit the model output."""
        return submit.submit_model(model_name, description, pipeline_state.workflow, "tossup", profile)

    def _setup_event_listeners(self):
        gr.on(
            triggers=[self.app.load, self.qid_selector.change],
            fn=self.get_new_question_html,
            inputs=[self.qid_selector],
            outputs=[self.question_display],
        )

        self.run_btn.click(
            self.pipeline_interface.validate_workflow,
            inputs=[self.pipeline_interface.pipeline_state],
            outputs=[self.pipeline_interface.pipeline_state],
        ).success(
            self.single_run,
            inputs=[
                self.qid_selector,
                self.pipeline_interface.pipeline_state,
                self.buzz_t_slider,
                self.early_stop_checkbox,
            ],
            outputs=[
                self.question_display,
                self.confidence_plot,
                self.output_state,
                self.results_table,
            ],
        )

        self.eval_btn.click(
            fn=self.evaluate,
            inputs=[self.pipeline_interface.pipeline_state, self.buzz_t_slider],
            outputs=[self.results_table, self.confidence_plot],
        )

        self.submit_btn.click(
            fn=self.submit_model,
            inputs=[
                self.model_name_input,
                self.description_input,
                self.pipeline_interface.pipeline_state,
            ],
            outputs=[self.submit_status],
        )

        self.hidden_input.change(
            fn=update_tossup_plot,
            inputs=[self.hidden_input, self.output_state],
            outputs=[self.confidence_plot],
        )