<!-- ❗Errors in the form are set on line 60 -->
<script setup lang="ts">
import { VForm } from 'vuetify/components/VForm'
import { useGenerateImageVariant } from '@core/composable/useGenerateImageVariant'
import authV2LoginIllustrationBorderedDark from '@images/pages/auth-v2-login-illustration-bordered-dark.png'
import authV2LoginIllustrationBorderedLight from '@images/pages/auth-v2-login-illustration-bordered-light.png'
import authV2LoginIllustrationDark from '@images/pages/auth-v2-login-illustration-dark.png'
import authV2LoginIllustrationLight from '@images/pages/auth-v2-login-illustration-light.png'
import authV2MaskDark from '@images/pages/misc-mask-dark.png'
import authV2MaskLight from '@images/pages/misc-mask-light.png'
import { VNodeRenderer } from '@layouts/components/VNodeRenderer'
import { userStore } from '@stores/user.store'
import { themeConfig } from '@themeConfig'

const authThemeImg = useGenerateImageVariant(authV2LoginIllustrationLight, authV2LoginIllustrationDark, authV2LoginIllustrationBorderedLight, authV2LoginIllustrationBorderedDark, true)

const authThemeMask = useGenerateImageVariant(authV2MaskLight, authV2MaskDark)

definePage({
  meta: {
    layout: 'blank',
    unauthenticatedOnly: true,
  },
})

const isPasswordVisible = ref(false)

const route = useRoute()
const router = useRouter()

const ability = useAbility()

const errors = ref<Record<string, string | undefined>>({
  username: undefined,
  password: undefined,
})

const refVForm = ref<VForm>()

const credentials = ref({
  username: '',
  password: '',
})

const rememberMe = ref(false)
const isSnackbarVisibility = ref(false)

const useUserStore = userStore()

const login = async () => {
  try {
    await useUserStore.login(credentials.value.username, credentials.value.password, ability)

    // Redirect to `to` query if exist or redirect to index route
    // ❗ nextTick is required to wait for DOM updates and later redirect
    await nextTick(() => {
      router.replace(route.query.to ? String(route.query.to) : '/')
    })
  }
  catch (err) {
    // ❗ show invalid credentials error
    isSnackbarVisibility.value = true
  }
}

const onSubmit = () => {
  refVForm.value?.validate()
    .then(({ valid: isValid }) => {
      if (isValid)
        login()
    })
}
</script>

<template>
  <VRow
    no-gutters
    class="auth-wrapper bg-surface"
  >
    <VCol
      lg="8"
      class="d-none d-lg-flex"
    >
      <div class="position-relative bg-background rounded-lg w-100 ma-8 me-0">
        <div class="d-flex align-center justify-center w-100 h-100">
          <VImg
            max-width="505"
            :src="authThemeImg"
            class="auth-illustration mt-16 mb-2"
          />
        </div>

        <VImg
          :src="authThemeMask"
          class="auth-footer-mask"
        />
      </div>
    </VCol>

    <VCol
      cols="12"
      lg="4"
      class="auth-card-v2 d-flex align-center justify-center"
    >
      <VCard
        flat
        :max-width="500"
        class="mt-12 mt-sm-0 pa-4"
      >
        <VCardText>
          <VNodeRenderer
            :nodes="themeConfig.app.logo"
            class="mb-6"
          />

          <h4 class="text-h4 mb-1">
            Welcome to <span class="text-capitalize"> {{ themeConfig.app.title }} </span>! 👋🏻
          </h4>
          <p class="mb-0">
            Please sign-in to your account and start the adventure
          </p>
        </VCardText>
        <VCardText>
          <VForm
            ref="refVForm"
            @submit.prevent="onSubmit"
          >
            <VRow>
              <!-- username -->
              <VCol cols="12">
                <AppTextField
                  v-model="credentials.username"
                  label="Username"
                  placeholder="First name"
                  type="username"
                  autofocus
                  :rules="[requiredValidator]"
                  :error-messages="errors.username"
                />
              </VCol>

              <!-- password -->
              <VCol cols="12">
                <AppTextField
                  v-model="credentials.password"
                  label="Password"
                  placeholder="············"
                  :rules="[requiredValidator]"
                  :type="isPasswordVisible ? 'text' : 'password'"
                  :error-messages="errors.password"
                  :append-inner-icon="isPasswordVisible ? 'tabler-eye-off' : 'tabler-eye'"
                  @click:append-inner="isPasswordVisible = !isPasswordVisible"
                />

                <div class="d-flex align-center flex-wrap justify-space-between mt-1 mb-4">
                  <VCheckbox
                    v-model="rememberMe"
                    label="Remember me"
                  />
                </div>

                <VBtn
                  block
                  type="submit"
                >
                  Login
                </VBtn>
              </VCol>
            </VRow>
          </VForm>
        </VCardText>
      </VCard>
    </VCol>
  </VRow>
  <!-- Snackbar -->
  <VSnackbar
    v-model="isSnackbarVisibility"
    location="center"
  >
    Incorrect username or password ...

    <template #actions>
      <VBtn
        color="error"
        @click="isSnackbarVisibility = false"
      >
        Close
      </VBtn>
    </template>
  </VSnackbar>
</template>

<style lang="scss">
@use "@core/scss/template/pages/page-auth.scss";
</style>
