from pydantic import BaseModel
from typing import List

from lib.irt.test_information_function import TestInformationFunction
from lib.irt.test_response_function import TestResponseFunction

from models.item import Item
from models.irt_model import IRTModel


class Bundle(BaseModel):
    id: int
    count: int
    items: List[Item]
    type: str

    def tif(self, irt_model: IRTModel, theta: float) -> float:
        val = TestInformationFunction(irt_model).calculate(self.items, theta=theta)

        return round(val, 2)

    def trf(self, irt_model: IRTModel, theta: float) -> float:
        val = TestResponseFunction(irt_model).calculate(self.items, theta=theta)

        return round(val, 2)

    def tif_trf_sum(self, solver_run):
        return self.__trf_sum(solver_run) + self.__tif_sum(solver_run)

    def __tif_sum(self, solver_run):
        total = 0

        for target in solver_run.objective_function.tcc_targets:
            total += self.tif(solver_run.irt_model, target.theta)

        return total

    def __trf_sum(self, solver_run):
        total = 0

        for target in solver_run.objective_function.tcc_targets:
            total += self.trf(solver_run.irt_model, target.theta)

        return total