from __future__ import annotations

import ast
import schema
import csv
import json
from pathlib import Path
import random
from typing import TYPE_CHECKING
from uw_programmatic.base_machine import UWBaseMachine


if TYPE_CHECKING:
    from griptape.tools import BaseTool


class UWMachine(UWBaseMachine):
    """State machine with GOAP"""

    @property
    def tools(self) -> dict[str, BaseTool]:
        return {}

    def start_machine(self) -> None:
        """Starts the machine."""
        # Clear input history.
        # Clear csv file
        self.retrieve_vector_stores()
        self.send("enter_first_state")

    def on_enter_gather_parameters(self) -> None:
        # Reinitialzes the state machine
        self.current_question_count = 0
        self.give_up_count = 0
        self.question_list = []
        self.rejected_questions = []

    # The first state: Listens for Gradio and then gives us the parameters to search for.
    # Reinitializes the Give Up counter.
    def on_event_gather_parameters(self, event_: dict) -> None:
        event_source = event_["type"]
        event_value = event_["value"]
        match event_source:
            case "user_input":
                parameters = event_value
                self.page_range = parameters["page_range"]
                self.question_number = parameters["question_number"]
                self.taxonomy = parameters["taxonomy"]
                self.errored = False
                self.send("next_state")
            case "griptape_event":
                if event_value["structure_id"] == "create_question_workflow":
                    pass
            case _:
                err_msg = f"Unexpected Transition Event ID: {event_value}."
                raise ValueError(err_msg)

    # Checks if there have not been any new questions generated 3 tries in a row
    # If # of questions is the same as the # of questions required - sends to end.
    def on_enter_evaluate_q_count(self) -> None:
        if len(self.question_list) <= self.current_question_count:
            self.give_up_count += 1
        else:
            self.current_question_count = len(self.question_list)
            self.give_up_count = 0
        if self.give_up_count >= 3:
            self.send("finish_state")  # go to output questions
            return
        if len(self.question_list) >= self.question_number:
            self.send("finish_state")  # go to output questions
        else:
            self.send("next_state")  # go to need more questions

    # Necessary for state machine to not throw errors
    def on_event_evaluate_q_count(self, event_: dict) -> None:
        pass

    def on_enter_need_more_q(self) -> None:
        # Create the entire workflow to create another question.
        self.get_questions_workflow().run()

    # Returns the output of the workflow - a ListArtifact of TextArtifacts of questions.
    # Question, Answer, Wrong Answers, Taxonomy, Page Number
    def on_event_need_more_q(self, event_: dict) -> None:
        event_source = event_["type"]
        event_value = event_["value"]
        match event_source:
            case "griptape_event":
                event_type = event_value["type"]
                match event_type:
                    case "FinishStructureRunEvent":
                        structure_id = event_value["structure_id"]
                        match structure_id:
                            case "create_question_workflow":
                                # TODO: Can you use task.output_schema on a workflow?
                                values = event_value["output_task_output"]["value"]
                                questions = [
                                    ast.literal_eval(question["value"])
                                    for question in values
                                ]
                                self.most_recent_questions = (
                                    questions  # This is a ListArtifact
                                )
                                self.send("next_state")
                    case _:
                        print(f"Error:{event_} ")
            case _:
                print(f"Unexpected: {event_}")

    # Merges the existing and new questions and sends to similarity auditor to get rid of similar questions.
    def on_enter_assess_generated_q(self) -> None:
        merged_list = [*self.question_list, *self.most_recent_questions]
        prompt = f"{merged_list}"
        similarity_auditor = self.get_structure("similarity_auditor")
        similarity_auditor.task.output_schema = schema.Schema(
            {
                "list": schema.Schema(
                    [
                        {
                            "Question": str,
                            "Answer": str,
                            "Wrong Answers": schema.Schema([str]),
                            "Page": str,
                            "Taxonomy": str,
                        }
                    ]
                )
            }
        )
        similarity_auditor.run(prompt)

    # Sets the returned question list (with similar questions wiped) equal to self.question_list
    def on_event_assess_generated_q(self, event_: dict) -> None:
        event_source = event_["type"]
        event_value = event_["value"]
        match event_source:
            case "griptape_event":
                event_type = event_value["type"]
                match event_type:
                    case "FinishStructureRunEvent":
                        structure_id = event_value["structure_id"]
                        match structure_id:
                            case "similarity_auditor":
                                new_question_list = event_value["output_task_output"][
                                    "value"
                                ]["list"]
                                self.question_list = new_question_list
                                self.send("next_state")  # go to Evaluate Q Count

    # Writes and saves a csv in the correct format to outputs/professor_guide.csv
    def on_enter_output_q(self) -> None:
        file_path = Path.cwd().joinpath("outputs/professor_guide.csv")
        file_path.parent.mkdir(parents=True, exist_ok=True)
        with file_path.open("w+", newline="") as file:
            writer = csv.writer(file)
            for question in self.question_list:
                new_row = ["MC", "", 1]
                new_row.append(question["Question"])
                wrong_answers = list(question["Wrong Answers"])
                column = random.randint(1, len(wrong_answers) + 1)
                new_row.append(column)
                for i in range(1, len(wrong_answers) + 2):
                    if i == column:
                        new_row.append(question["Answer"])
                    else:
                        new_row.append(wrong_answers.pop())
                new_row.append("'"+question["Page"])
                new_row.append(question["Taxonomy"])
                writer.writerow(new_row)
            if self.give_up_count == 3:
                writer.writerow(
                    [
                        "Too many rejected questions.",
                    ]
                )
        rejected_path = Path.cwd().joinpath("outputs/rejected_list.csv")
        with rejected_path.open("w+", newline="") as rejected_file:
            writer = csv.writer(rejected_file)
            for question in self.rejected_questions:
                writer.writerow(question.values())
        self.send("next_state")  # back to gather_parameters

    # Necessary to prevent errors being thrown from state machine
    def on_event_output_q(self, event_: dict) -> None:
        pass