import { ComplianceStatus, type FormElementDto } from '~/.api-client'
import { complianceCheckableElementTypes, complianceMap } from './complianceMap'
import type { FormElementId } from '~/types/FormElement'

export function useApplicationFormValidator() {
  function validateFormElements(formElements: FormElementDto[]): Map<FormElementId, ComplianceStatus> {
    const formElementComplianceMap = new Map<FormElementId, ComplianceStatus>()

    formElements.forEach((formElement) => {
      if (!complianceCheckableElementTypes.includes(formElement.type)) return

      // Reset any previously set compliance status when all options are false
      const hasAtLeastOneOptionSet = formElement.options.some((option) => option.value && option.value !== 'false')
      if (!hasAtLeastOneOptionSet) {
        formElementComplianceMap.delete(formElement.id)
        return
      }

      formElement.options.forEach((option) => {
        if (!option.value) {
          console.log(`Value missing for ${formElement.type}`)
          return
        }

        const currentHighestComplianceStatus =
          complianceMap?.get(option.processingPurpose)?.get(option.employeeDataCategory) ?? ComplianceStatus.NonCritical
        const currentHighestComplianceStatusPos =
          Object.values(ComplianceStatus).indexOf(currentHighestComplianceStatus)

        if (formElementComplianceMap.has(formElement.id)) {
          const newComplianceStatus = formElementComplianceMap.get(formElement.id)!
          const newComplianceStatusPos = Object.values(ComplianceStatus).indexOf(newComplianceStatus)

          if (newComplianceStatusPos > currentHighestComplianceStatusPos) {
            formElementComplianceMap.set(formElement.id, newComplianceStatus)
          }
        } else {
          formElementComplianceMap.set(formElement.id, currentHighestComplianceStatus)
        }
      })
    })

    return formElementComplianceMap
  }

  return { validateFormElements }
}