import type { PluginPayload } from '../types'
import type { FormRefObject, FormSchema } from '@/app/components/base/form/types'
import { Button } from '@langgenius/dify-ui/button'
import { Dialog, DialogClose, DialogContent, DialogTitle } from '@langgenius/dify-ui/dialog'
import { IconButton } from '@langgenius/dify-ui/icon-button'
import { toast } from '@langgenius/dify-ui/toast'
import { useForm, useStore } from '@tanstack/react-form'
import { memo, useCallback, useRef, useState } from 'react'
import { useTranslation } from 'react-i18next'
import AuthForm from '@/app/components/base/form/form-scenarios/auth'
import { ReadmeEntrance } from '../../readme-panel/entrance'
import {
  useDeletePluginOAuthCustomClientHook,
  useInvalidPluginOAuthClientSchemaHook,
  useSetPluginOAuthCustomClientHook,
} from '../hooks/use-credential'

export type OAuthClientSettingsProps = {
  pluginPayload: PluginPayload
  open?: boolean
  onOpenChange?: (open: boolean) => void
  onClose?: () => void
  editValues?: Record<string, unknown>
  disabled?: boolean
  schemas: FormSchema[]
  onRequestAuthorization?: () => Promise<void> | void
  hasOriginalClientParams?: boolean
  onUpdate?: () => void
}
const OAuthClientSettings = ({
  pluginPayload,
  open = true,
  onOpenChange,
  onClose,
  editValues,
  disabled,
  schemas,
  onRequestAuthorization,
  hasOriginalClientParams,
  onUpdate,
}: OAuthClientSettingsProps) => {
  const { t } = useTranslation()
  const [doingAction, setDoingAction] = useState(false)
  const doingActionRef = useRef(doingAction)
  const handleSetDoingAction = useCallback((value: boolean) => {
    doingActionRef.current = value
    setDoingAction(value)
  }, [])
  const handleOpenChange = useCallback(
    (nextOpen: boolean) => {
      onOpenChange?.(nextOpen)
      if (!nextOpen) onClose?.()
    },
    [onClose, onOpenChange],
  )
  const defaultValues = schemas.reduce(
    (acc, schema) => {
      if (schema.default) acc[schema.name] = schema.default
      return acc
    },
    {} as Record<string, unknown>,
  )
  const { mutateAsync: setPluginOAuthCustomClient } =
    useSetPluginOAuthCustomClientHook(pluginPayload)
  const invalidPluginOAuthClientSchema = useInvalidPluginOAuthClientSchemaHook(pluginPayload)
  const formRef = useRef<FormRefObject>(null)
  const handleConfirm = useCallback(async () => {
    if (doingActionRef.current) return false

    try {
      const { isCheckValidated, values } = formRef.current?.getFormValues({
        needCheckValidatedValues: true,
        needTransformWhenSecretFieldIsPristine: true,
      }) || { isCheckValidated: false, values: {} }
      if (!isCheckValidated) throw new Error('error')
      const { __oauth_client__, ...restValues } = values

      handleSetDoingAction(true)
      await setPluginOAuthCustomClient({
        client_params: restValues,
        enable_oauth_custom_client: __oauth_client__ === 'custom',
      })
      toast.success(t(($) => $['api.actionSuccess'], { ns: 'common' }))

      onOpenChange?.(false)
      onClose?.()
      onUpdate?.()
      invalidPluginOAuthClientSchema()
      return true
    } finally {
      handleSetDoingAction(false)
    }
  }, [
    onClose,
    onOpenChange,
    onUpdate,
    invalidPluginOAuthClientSchema,
    setPluginOAuthCustomClient,
    t,
    handleSetDoingAction,
  ])

  const handleConfirmAndAuthorize = useCallback(async () => {
    try {
      const isSaved = await handleConfirm()
      if (isSaved) await onRequestAuthorization?.()
    } catch {
      // The request layer reports the save error. Keep settings open and stop
      // before opening the permission dialog.
    }
  }, [handleConfirm, onRequestAuthorization])
  const { mutateAsync: deletePluginOAuthCustomClient } =
    useDeletePluginOAuthCustomClientHook(pluginPayload)
  const handleRemove = useCallback(async () => {
    if (doingActionRef.current) return

    try {
      handleSetDoingAction(true)
      await deletePluginOAuthCustomClient()
      toast.success(t(($) => $['api.actionSuccess'], { ns: 'common' }))
      onOpenChange?.(false)
      onClose?.()
      onUpdate?.()
      invalidPluginOAuthClientSchema()
    } finally {
      handleSetDoingAction(false)
    }
  }, [
    onUpdate,
    invalidPluginOAuthClientSchema,
    deletePluginOAuthCustomClient,
    t,
    handleSetDoingAction,
    onClose,
    onOpenChange,
  ])
  const form = useForm({
    defaultValues: editValues || defaultValues,
  })
  const __oauth_client__ = useStore(form.store, (s) => s.values.__oauth_client__)
  const isDisabled = disabled || doingAction

  return (
    <Dialog open={open} disablePointerDismissal onOpenChange={handleOpenChange}>
      <DialogContent
        backdropProps={{ forceRender: true }}
        className="w-120! max-w-[calc(100vw-2rem)]! p-0!"
      >
        <div data-testid="modal" className="flex max-h-[80dvh] flex-col">
          <div className="relative shrink-0 p-6 pr-14 pb-3">
            <DialogTitle className="title-2xl-semi-bold text-text-primary">
              {t(($) => $['auth.oauthClientSettings'], { ns: 'plugin' })}
            </DialogTitle>
            <DialogClose
              render={
                <IconButton
                  aria-label={t(($) => $['operation.close'], { ns: 'common' })}
                  size="lg"
                  className="absolute top-5 right-5"
                >
                  <span aria-hidden className="i-ri-close-line size-4" />
                </IconButton>
              }
            />
          </div>
          <div className="min-h-0 flex-1 overflow-y-auto px-6 py-3 pt-0">
            {pluginPayload.detail && (
              <ReadmeEntrance pluginDetail={pluginPayload.detail} presentation="dialog" />
            )}
            <AuthForm
              formFromProps={form}
              ref={formRef}
              formSchemas={schemas}
              defaultValues={editValues || defaultValues}
              disabled={disabled}
            />
          </div>
          <div className="flex shrink-0 justify-between p-6 pt-5">
            <div>
              {__oauth_client__ === 'custom' && hasOriginalClientParams && (
                <Button
                  variant="secondary"
                  className="text-components-button-destructive-secondary-text"
                  disabled={isDisabled || !editValues}
                  onClick={handleRemove}
                >
                  {t(($) => $['operation.remove'], { ns: 'common' })}
                </Button>
              )}
            </div>
            <div className="flex items-center">
              <Button
                variant="secondary"
                onClick={() => handleOpenChange(false)}
                disabled={isDisabled}
              >
                {t(($) => $['operation.cancel'], { ns: 'common' })}
              </Button>
              <div className="mx-3 h-4 w-px bg-divider-regular"></div>
              <Button onClick={handleConfirm} disabled={isDisabled}>
                {t(($) => $['auth.saveOnly'], { ns: 'plugin' })}
              </Button>
              <Button
                className="ml-2"
                variant="primary"
                onClick={handleConfirmAndAuthorize}
                disabled={isDisabled}
              >
                {t(($) => $['auth.saveAndAuth'], { ns: 'plugin' })}
              </Button>
            </div>
          </div>
        </div>
      </DialogContent>
    </Dialog>
  )
}

export default memo(OAuthClientSettings)