<template>
  <QuickNav selected="Profile" />
  <!-- CONTENT -->
  <section id="Content" class="p-6 pb-24 max-w-3xl mx-auto">
    <!-- Back -->
    <div class="text-lg text-center font-light relative px-7">
      <h1
        class="text-lg text-center px-2 py-1 absolute -left-2 -top-1"
        @click="$router.back()"
      >
        <fa icon="chevron-left" class="fa-fw"></fa>
      </h1>
    </div>

    <!-- Heading -->
    <h1 id="ViewHeading" class="text-4xl text-center font-light pt-4 mb-8">
      Seed Backup
    </h1>

    <div class="flex justify-between py-2">
      <span />
      <span>
        <router-link
          :to="{ name: 'help' }"
          class="text-xs uppercase bg-gradient-to-b from-blue-400 to-blue-700 shadow-[inset_0_-1px_0_0_rgba(0,0,0,0.5)] text-white px-1.5 py-1 rounded-md ml-1"
        >
          Help
        </router-link>
      </span>
    </div>

    <div v-if="activeAccount">
      <p class="text-center mb-4">
        <b class="text-red-600">BEWARE!</b> Anyone who has this seed phrase will
        be able impersonate you and take over any digital holdings based on it.
        Reveal it when you are somewhere only you can see your screen, and
        record it somewhere only you have access.
        <i>Don't take a screenshot or send it to any online service.</i>
      </p>

      <p v-if="numAccounts > 1">
        <b class="text-orange-600">Note:</b> You have more than one identifier
        stored in this browser. If they are all based on the same seed as the
        current identifier, this one backup is sufficient; however, if you have
        different seeds for other identifiers, you will have to back them up
        separately.
      </p>

      <div class="bg-slate-100 rounded-md overflow-hidden p-4 mb-4">
        <button
          class="block w-full text-center text-md uppercase bg-gradient-to-b from-slate-400 to-slate-700 shadow-[inset_0_-1px_0_0_rgba(0,0,0,0.5)] text-white px-1.5 py-2 rounded-md"
          @click="showSeedPhrase"
        >
          Reveal my Seed Phrase
        </button>

        <p v-if="showSeed" class="text-center text-slate-700 mt-2">
          {{ activeAccount.mnemonic }}
        </p>
      </div>
    </div>
    <div v-else>You do not have an active identifier.</div>
  </section>
</template>

<script lang="ts">
import { Component, Vue } from "vue-facing-decorator";
import * as R from "ramda";

import QuickNav from "@/components/QuickNav.vue";
import { NotificationIface } from "@/constants/app";
import { accountsDB, db } from "@/db/index";
import { Account } from "@/db/tables/accounts";
import { MASTER_SETTINGS_KEY } from "@/db/tables/settings";

@Component({ components: { QuickNav } })
export default class SeedBackupView extends Vue {
  $notify!: (notification: NotificationIface, timeout?: number) => void;

  activeAccount: Account | null | undefined = null;
  numAccounts = 0;
  showSeed = false;

  // 'created' hook runs when the Vue instance is first created
  async created() {
    try {
      await db.open();
      const settings = await db.settings.get(MASTER_SETTINGS_KEY);
      const activeDid = settings?.activeDid || "";

      await accountsDB.open();
      const accounts = await accountsDB.accounts.toArray();
      this.numAccounts = accounts.length;
      this.activeAccount = R.find((acc) => acc.did === activeDid, accounts);
    } catch (err: unknown) {
      console.error("Got an error loading an identifier:", err);
      this.$notify(
        {
          group: "alert",
          type: "danger",
          title: "Error Loading Account",
          text: "Got an error loading your seed data.",
        },
        -1,
      );
    }
  }

  showSeedPhrase() {
    this.showSeed = true;
  }
}
</script>
