All files / src/features/GiveSignup/hooks useKotoStepper.ts

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import { useEffect, useImperativeHandle, useMemo, useState } from "react";
import { KotoStep } from "../types";
import { useSearchParams } from "react-router-dom";
import { personalDetailsStepIndex } from "../helpers";
 
export function useKotoStepper({
  steps,
  defaultStep,
  setIsLoaded,
  actionOnClick,
  setStep,
  automateLast,
  disableLastClick,
  overriderActiveStep,
  alwaysEnable = false,
  disableWithoutStyle,
  isClickable = true,
  kotoStepClickHandler,
  ref,
}: any) {
  const visibleSteps: KotoStep[] = useMemo(
    () => steps.filter(({ hidden }: any) => !hidden),
    [steps],
  );
 
  const [searchParams] = useSearchParams();
  const classificationParam = searchParams.get("classification");
  const initialParam = Boolean(classificationParam)
    ? personalDetailsStepIndex
    : 0;
 
  const [activeStep, setActiveStep] = useState(initialParam);
  const [lastStepValue, setLastStepValue] = useState(0);
 
  useEffect(() => {
    setIsLoaded?.(true);
    setStep?.(defaultStep);
  }, []);
 
  const effectiveActiveStep =
    overriderActiveStep !== undefined && overriderActiveStep > -1
      ? overriderActiveStep
      : activeStep;
 
  useEffect(() => {
    Iif (visibleSteps.length === 0) return; // guard
    setStep?.(visibleSteps[effectiveActiveStep]?.label);
  }, [effectiveActiveStep, visibleSteps]);
 
  useEffect(() => {
    Iif (!automateLast) return;
    if (effectiveActiveStep !== visibleSteps.length - 1) return;
 
    const interval = setInterval(() => {
      setLastStepValue((v) => (v < 100 ? v + 1 : v));
    }, 50);
 
    return () => clearInterval(interval);
  }, [effectiveActiveStep, automateLast]);
 
  const handleNext = () =>
    setActiveStep((s) => Math.min(s + 1, visibleSteps.length - 1));
 
  const handleBack = () => setActiveStep((s) => Math.max(s - 1, 0));
 
  const canActivateStep = (index: number) => {
    const isPrevCompleted =
      index === 0 ||
      alwaysEnable ||
      visibleSteps.slice(0, index).every((step: any) => step.barValue === 100);
 
    const isLastDisabled =
      visibleSteps.length - 1 === index && disableLastClick;
 
    return (
      isClickable && isPrevCompleted && !isLastDisabled && !disableWithoutStyle
    );
  };
 
  const handleStepClick = (index: number) => {
    if (!canActivateStep(index)) return;
 
    setActiveStep(index);
    actionOnClick?.(index + 1);
    setStep?.(visibleSteps[index]?.label);
    kotoStepClickHandler?.();
  };
 
  useImperativeHandle(
    ref,
    () => ({
      handleNext,
      handleBack,
      setActiveStep,
    }),
    [],
  );
 
  const getStepValue = (index: number) =>
    automateLast && index === visibleSteps.length - 1
      ? lastStepValue
      : visibleSteps[index].barValue;
 
  return {
    activeStep: effectiveActiveStep,
    visibleSteps,
    getStepValue,
    canActivateStep,
    handleStepClick,
  };
}