import { Fragment, useEffect } from 'react'

import { Modal } from '@janhq/joi'
import { useAtomValue, useSetAtom } from 'jotai'

import { AlertCircle } from 'lucide-react'

import useCortex from '@/hooks/useCortex'
import {
  getImportModelStageAtom,
  setImportModelStageAtom,
} from '@/hooks/useImportModel'

import useModelDownloadMutation from '@/hooks/useModelDownloadMutation'

import ImportingModelItem from './ImportingModelItem'

import {
  importingModelsAtom,
  setImportingModelErrorAtom,
} from '@/helpers/atoms/Model.atom'

const ImportingModelModal: React.FC = () => {
  const downloadModelMutation = useModelDownloadMutation()
  const { downloadModel } = useCortex()
  const setImportModelStage = useSetAtom(setImportModelStageAtom)
  const setImportModelError = useSetAtom(setImportingModelErrorAtom)
  const importingModels = useAtomValue(importingModelsAtom)
  const importModelStage = useAtomValue(getImportModelStageAtom)

  const finishedImportModel = importingModels.filter(
    (model) => model.status === 'IMPORTED'
  ).length

  useEffect(() => {
    const importModels = async () => {
      for (const model of importingModels) {
        try {
          await downloadModelMutation.mutateAsync({
            modelId: model.path,
          })
        } catch (error) {
          let errorMessage = String(error)
          if (error instanceof Error) {
            errorMessage = error.message
          }

          setImportModelError(model.importId, errorMessage)
        }
      }
    }
    importModels()
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [downloadModel])

  return (
    <Modal
      open={importModelStage === 'IMPORTING_MODEL'}
      onOpenChange={() => setImportModelStage('NONE')}
      title={`Importing model (${finishedImportModel}/${importingModels.length})`}
      content={
        <Fragment>
          <div className="mb-2 space-y-3">
            {importingModels.map((model) => (
              <ImportingModelItem key={model.importId} model={model} />
            ))}
          </div>

          <div className="flex flex-row gap-2 rounded-b-lg border-t border-[hsla(var(--app-border))] py-2">
            <AlertCircle
              size={16}
              className="mt-1 flex-shrink-0 text-[hsla(var(--warning-bg))]"
            />
            <p className="text-[hsla(var(--text-secondary)] font-semibold">
              Own your model configurations, use at your own risk.
              Misconfigurations may result in lower quality or unexpected
              outputs.
            </p>
          </div>
        </Fragment>
      }
    />
  )
}

export default ImportingModelModal