<template>
  <section id="Content" class="p-6 pb-24">
    <!-- Breadcrumb -->
    <div id="ViewBreadcrumb" class="mb-8">
      <h1 class="text-lg text-center font-light relative px-7">
        <!-- Cancel -->
        <button
          @click="$router.go(-1)"
          class="text-lg text-center px-2 py-1 absolute -left-2 -top-1"
        >
          <fa icon="chevron-left"></fa>
        </button>
        Import Existing Identity
      </h1>
    </div>
    <!-- Import Account Form -->
    <p class="text-center text-xl mb-4 font-light">
      Enter your seed phrase below to import your identity on this device.
    </p>
    <input
      type="text"
      id="mnemonic"
      placeholder="Seed Phrase"
      class="block w-full rounded border border-slate-400 mb-4 px-3 py-2"
      v-model="mnemonic"
    />
    {{ mnemonic }}
    <div class="mt-8">
      <button
        id="import"
        @click="from_mnemonic()"
        class="block w-full text-center text-lg font-bold uppercase bg-blue-600 text-white px-2 py-3 rounded-md mb-2"
      >
        Import
      </button>
      <button
        @click="onCancelClick()"
        type="button"
        class="block w-full text-center text-md uppercase bg-slate-500 text-white px-1.5 py-2 rounded-md"
      >
        Cancel
      </button>
    </div>
  </section>
</template>

<script lang="ts">
import { Options, Vue } from "vue-class-component";
import { deriveAddress, newIdentifier } from "../libs/crypto";
import { db } from "@/db";
import { useAppStore } from "@/store/app";

@Options({
  components: {},
})
export default class ImportAccountView extends Vue {
  mnemonic = "";
  address = "";
  privateHex = "";
  publicHex = "";
  UPORT_ROOT_DERIVATION_PATH = "";

  public onCancelClick() {
    this.$router.back();
  }

  public async from_mnemonic() {
    const mne: string = this.mnemonic.trim().toLowerCase();
    if (this.mnemonic.trim().length > 0) {
      [
        this.address,
        this.privateHex,
        this.publicHex,
        this.UPORT_ROOT_DERIVATION_PATH,
      ] = deriveAddress(mne);

      const newId = newIdentifier(
        this.address,
        this.publicHex,
        this.privateHex,
        this.UPORT_ROOT_DERIVATION_PATH
      );

      try {
        await db.open();
        const num_accounts = await db.accounts.count();
        if (num_accounts === 0) {
          console.log("...");
          await db.accounts.add({
            publicKey: newId.keys[0].publicKeyHex,
            mnemonic: mne,
            identity: JSON.stringify(newId),
            dateCreated: new Date().getTime(),
          });
        }
        useAppStore().setCondition("registered");
        this.$router.push({ name: "account" });
      } catch (err) {
        console.log("Error!");
        console.log(err);
      }
    }
  }
}
</script>
