<template>
  <v-app
    v-if="ready"
    dark
  >
    <v-card-title>
      <slot>
        <h1 class="mx-auto">
          {{ $t("page.404-page-not-found") }}
        </h1>
      </slot>
    </v-card-title>
    <div class="d-flex justify-space-around">
      <div class="d-flex align-center">
        <p class="primary--text">
          4
        </p>
        <v-icon
          color="primary"
          class="mx-auto mb-0"
          size="200"
        >
          {{ $globals.icons.primary }}
        </v-icon>
        <p class="primary--text">
          4
        </p>
      </div>
    </div>
    <v-card-actions>
      <v-spacer />
      <slot name="actions">
        <v-btn
          v-for="(button, index) in buttons"
          :key="index"
          nuxt
          :to="button.to"
          color="primary"
        >
          <v-icon start>
            {{ button.icon }}
          </v-icon>
          {{ button.text }}
        </v-btn>
      </slot>
      <v-spacer />
    </v-card-actions>
  </v-app>
</template>

<script lang="ts">
import { useGlobalI18n } from "~/composables/use-global-i18n";

export default defineNuxtComponent({
  props: {
    error: {
      type: Object,
      default: null,
    },
  },
  setup(props) {
    definePageMeta({
      layout: "basic",
    });

    const i18n = useGlobalI18n();
    const auth = useMealieAuth();
    const { $globals } = useNuxtApp();
    const ready = ref(false);

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

    async function insertGroupSlugIntoRoute() {
      const groupSlug = ref(auth.user.value?.groupSlug);
      if (!groupSlug.value) {
        return;
      }

      let replaceRoute = false;
      let routeVal = route.fullPath || "/";
      if (routeVal[0] !== "/") {
        routeVal = `/${routeVal}`;
      }

      // replace "recipe" in URL with "r"
      if (routeVal.includes("/recipe/")) {
        replaceRoute = true;
        routeVal = routeVal.replace("/recipe/", "/r/");
      }

      // insert groupSlug into URL
      const routeComponents = routeVal.split("/");
      if (routeComponents.length < 2 || routeComponents[1].toLowerCase() !== "g") {
        replaceRoute = true;
        routeVal = `/g/${groupSlug.value}${routeVal}`;
      }

      if (replaceRoute) {
        await router.replace(routeVal);
      }
    }

    async function handle404() {
      const normalizedRoute = route.fullPath.replace(/\/$/, "");
      const newRoute = normalizedRoute.replace(/^\/group\/(mealplan|members|notifiers|webhooks)(\/.*)?$/, "/household/$1$2");

      if (newRoute !== normalizedRoute) {
        await router.replace(newRoute);
      }
      else {
        await insertGroupSlugIntoRoute();
      }

      ready.value = true;
    }

    if (props.error.statusCode === 404) {
      handle404();
    }
    else {
      ready.value = true;
    }

    useSeoMeta({
      title:
        props.error.statusCode === 404
          ? (i18n.t("page.404-not-found") as string)
          : (i18n.t("page.an-error-occurred") as string),
    });

    const buttons = [
      { icon: $globals.icons.home, to: "/", text: i18n.t("general.home") },
    ];

    return {
      buttons,
      ready,
    };
  },
});
</script>

<style scoped>
h1 {
  font-size: 20px;
}

p {
  padding-bottom: 0 !important;
  margin-bottom: 0 !important;
  font-size: 200px;
}
</style>
