<template>
  <QuickNav />
  <!-- CONTENT -->
  <section id="Content" class="p-6 pb-24 max-w-3xl mx-auto">
    <!-- Heading -->
    <h1 id="ViewHeading" class="text-4xl text-center font-light pt-4 mb-8">
      Image
    </h1>
    <div v-if="imageBlob">
      <div v-if="uploading" class="text-center mb-4">
        <fa icon="spinner" class="fa-spin-pulse" />
      </div>
      <div v-else>
        <div class="text-center mb-4">Choose how to use this image</div>
        <div class="grid grid-cols-1 sm:grid-cols-3 gap-4">
          <button
            @click="recordGift"
            class="text-center text-md font-bold 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-2 py-3 rounded-md"
          >
            <fa icon="gift" class="fa-fw" />
            Record a Gift
          </button>
          <button
            @click="recordProfile"
            class="text-center text-md font-bold 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-2 py-3 rounded-md"
          >
            <fa icon="circle-user" class="fa-fw" />
            Save as Profile Image
          </button>
          <button
            @click="cancel"
            class="text-center text-md font-bold 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-2 py-3 rounded-md"
          >
            <fa icon="ban" class="fa-fw" />
            Cancel
          </button>
        </div>
        <PhotoDialog ref="photoDialog" />
      </div>

      <div class="flex justify-center">
        <img
          :src="URL.createObjectURL(imageBlob)"
          alt="Shared Image"
          class="rounded mt-4"
        />
      </div>
    </div>
    <div v-else class="text-center mb-4">
      <p>No image found.</p>
      <p class="mt-4">
        If you shared an image, the cause is usually that you do not have the
        recent version of this app, or that the app has not refreshed the
        service code underneath. To fix this, first make sure you have latest
        version by comparing your version at the bottom of "Help" with the
        version at the bottom of https://timesafari.app/help in a browser. After
        that, it may eventually work, but you can speed up the process by
        clearing your data cache (in the browser on mobile, even if you
        installed it) and/or reinstalling the app (after backing up all your
        data, of course).
      </p>
    </div>
  </section>
</template>

<script lang="ts">
import axios from "axios";
import { Component, Vue } from "vue-facing-decorator";
import { RouteLocationRaw, Router } from "vue-router";

import PhotoDialog from "../components/PhotoDialog.vue";
import QuickNav from "../components/QuickNav.vue";
import {
  DEFAULT_IMAGE_API_SERVER,
  IMAGE_TYPE_PROFILE,
  NotificationIface,
} from "../constants/app";
import { db, retrieveSettingsForActiveAccount } from "../db/index";
import { MASTER_SETTINGS_KEY } from "../db/tables/settings";
import { accessToken } from "../libs/crypto";
import { base64ToBlob, SHARED_PHOTO_BASE64_KEY } from "../libs/util";

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

  activeDid: string | undefined = undefined;
  imageBlob: Blob | undefined = undefined;
  imageFileName: string | undefined = undefined;
  uploading = false;

  URL = window.URL || window.webkitURL;

  // 'created' hook runs when the Vue instance is first created
  async mounted() {
    try {
      const settings = await retrieveSettingsForActiveAccount();
      this.activeDid = settings.activeDid;

      const temp = await db.temp.get(SHARED_PHOTO_BASE64_KEY);
      const imageB64 = temp?.blobB64 as string;
      if (temp) {
        this.imageBlob = base64ToBlob(imageB64);

        // clear the temp image
        db.temp.delete(SHARED_PHOTO_BASE64_KEY);

        this.imageFileName = (this.$route as Router).query[
          "fileName"
        ] as string;
      } else {
        console.error("No appropriate image found in temp storage.", temp);
      }
    } catch (err: unknown) {
      console.error("Got an error loading an identifier:", err);
      this.$notify(
        {
          group: "alert",
          type: "danger",
          title: "Error",
          text: "Got an error loading this data.",
        },
        3000,
      );
    }
  }

  async recordGift() {
    await this.sendToImageServer("GiveAction").then((url) => {
      if (url) {
        const route = {
          name: "gifted-details",
          // this might be wrong since "name" goes with params, but it works so test well when you change it
          query: {
            destinationPathAfter: "/",
            hideBackButton: true,
            imageUrl: url,
            recipientDid: this.activeDid,
          },
        } as RouteLocationRaw;
        (this.$router as Router).push(route);
      }
    });
  }

  recordProfile() {
    (this.$refs.photoDialog as PhotoDialog).open(
      async (imgUrl) => {
        await db.settings.update(MASTER_SETTINGS_KEY, {
          profileImageUrl: imgUrl,
        });
        (this.$router as Router).push({ name: "account" });
      },
      IMAGE_TYPE_PROFILE,
      true,
      this.imageBlob,
      this.imageFileName,
    );
  }

  async cancel() {
    this.imageBlob = undefined;
    this.imageFileName = undefined;
    (this.$router as Router).push({ name: "home" });
  }

  async sendToImageServer(imageType: string) {
    this.uploading = true;

    let result;
    try {
      // send the image to the server
      const token = await accessToken(this.activeDid);
      const headers = {
        Authorization: "Bearer " + token,
        // axios fills in Content-Type of multipart/form-data
      };
      const formData = new FormData();
      formData.append(
        "image",
        this.imageBlob as Blob,
        this.imageFileName as string,
      );
      formData.append("claimType", imageType);

      const response = await axios.post(
        DEFAULT_IMAGE_API_SERVER + "/image",
        formData,
        { headers },
      );
      if (response?.data?.url) {
        this.imageBlob = undefined;
        this.imageFileName = undefined;
        result = response.data.url as string;
      } else {
        console.error("Problem uploading the image", response.data);
        this.$notify(
          {
            group: "alert",
            type: "danger",
            title: "Error",
            text:
              "There was a problem saving the picture. " +
              (response?.data?.message || ""),
          },
          5000,
        );
      }

      this.uploading = false;
    } catch (error) {
      console.error("Error uploading the image", error);
      this.$notify(
        {
          group: "alert",
          type: "danger",
          title: "Error",
          text: "There was an error saving the picture.",
        },
        5000,
      );
      this.uploading = false;
    }
    return result;
  }
}
</script>
