From ffd105eac621cdddaa3e6af2747c7548a1e47fb6 Mon Sep 17 00:00:00 2001
From: Varun Patil <varunpatil@ucla.edu>
Date: Wed, 8 Mar 2023 10:22:36 -0800
Subject: [PATCH] feat: add gps data editor (close #418)

---
 lib/Controller/PageController.php          |   3 +
 src/components/Metadata.vue                |   2 +
 src/components/modal/EditExif.vue          |  10 +-
 src/components/modal/EditLocation.vue      | 194 +++++++++++++++++++++
 src/components/modal/EditMetadataModal.vue |  20 ++-
 src/components/modal/FaceList.vue          |   7 +-
 6 files changed, 230 insertions(+), 6 deletions(-)
 create mode 100644 src/components/modal/EditLocation.vue

diff --git a/lib/Controller/PageController.php b/lib/Controller/PageController.php
index 0c53ad02..e3277c5f 100644
--- a/lib/Controller/PageController.php
+++ b/lib/Controller/PageController.php
@@ -133,6 +133,9 @@ class PageController extends Controller
         $addImageDomain('https://*.tile.openstreetmap.org');
         $addImageDomain('https://*.a.ssl.fastly.net');
 
+        // Allow Nominatim
+        $policy->addAllowedConnectDomain('nominatim.openstreetmap.org');
+
         return $policy;
     }
 
diff --git a/src/components/Metadata.vue b/src/components/Metadata.vue
index eb762191..12510f5f 100644
--- a/src/components/Metadata.vue
+++ b/src/components/Metadata.vue
@@ -163,6 +163,8 @@ export default defineComponent({
           subtitle: [],
           icon: LocationIcon,
           href: this.mapFullUrl,
+          edit: () =>
+            globalThis.editMetadata([globalThis.currentViewerPhoto], [4]),
         });
       }
 
diff --git a/src/components/modal/EditExif.vue b/src/components/modal/EditExif.vue
index 37bf43b4..abcd9f8b 100644
--- a/src/components/modal/EditExif.vue
+++ b/src/components/modal/EditExif.vue
@@ -7,10 +7,13 @@
       <NcTextField
         class="field"
         :id="'exif-field-' + field.field"
-        :value.sync="exif[field.field]"
         :label-outside="true"
+        :value.sync="exif[field.field]"
         :placeholder="placeholder(field)"
         @input="dirty[field.field] = true"
+        trailing-button-icon="close"
+        :show-trailing-button="dirty[field.field]"
+        @trailing-button-click="reset(field)"
       />
     </div>
   </div>
@@ -119,6 +122,11 @@ export default defineComponent({
         ? t("memories", "Empty")
         : t("memories", "Unchanged");
     },
+
+    reset(field: any) {
+      this.exif[field.field] = "";
+      this.dirty[field.field] = false;
+    },
   },
 });
 </script>
diff --git a/src/components/modal/EditLocation.vue b/src/components/modal/EditLocation.vue
new file mode 100644
index 00000000..facb5cfb
--- /dev/null
+++ b/src/components/modal/EditLocation.vue
@@ -0,0 +1,194 @@
+<template>
+  <div class="outer">
+    <div class="lat-lon">
+      <span>{{ loc }}</span> {{ dirty ? "*" : "" }}
+    </div>
+
+    <NcTextField
+      :value.sync="searchBar"
+      :placeholder="t('memories', 'Search location / landmark')"
+      trailing-button-icon="arrowRight"
+      :show-trailing-button="searchBar.length > 0 && !loading"
+      @trailing-button-click="search"
+      @keypress.enter="search"
+    >
+      <Magnify :size="16" />
+    </NcTextField>
+
+    <NcLoadingIcon class="loading-spinner" v-if="loading" />
+
+    <ul v-if="options.length > 0">
+      <li
+        v-for="option in options"
+        :key="option.osm_id"
+        @click="select(option)"
+      >
+        {{ option.display_name }}
+      </li>
+    </ul>
+  </div>
+</template>
+
+<script lang="ts">
+import { defineComponent } from "vue";
+import { IPhoto } from "../../types";
+
+import axios from "@nextcloud/axios";
+import { showError } from "@nextcloud/dialogs";
+
+const NcTextField = () => import("@nextcloud/vue/dist/Components/NcTextField");
+const NcListItem = () => import("@nextcloud/vue/dist/Components/NcListItem");
+import NcLoadingIcon from "@nextcloud/vue/dist/Components/NcLoadingIcon";
+
+import Magnify from "vue-material-design-icons/Magnify.vue";
+
+type NLocation = {
+  osm_id: number;
+  type: string;
+  icon: string;
+  display_name: string;
+  lat: string;
+  lon: string;
+};
+
+export default defineComponent({
+  components: {
+    NcTextField,
+    NcListItem,
+    NcLoadingIcon,
+    Magnify,
+  },
+
+  props: {
+    photos: {
+      type: Array<IPhoto>,
+      required: true,
+    },
+  },
+
+  data: () => ({
+    dirty: false,
+    lat: null as number | null,
+    lon: null as number | null,
+    searchBar: "",
+    loading: false,
+
+    options: [] as NLocation[],
+  }),
+
+  computed: {
+    loc() {
+      if (this.lat && this.lon) {
+        return `${this.lat.toFixed(6)}, ${this.lon.toFixed(6)}`;
+      }
+      return this.t("memories", "Unknown coordinates");
+    },
+  },
+
+  mounted() {
+    const photos = this.photos as IPhoto[];
+
+    let lat = 0,
+      lon = 0,
+      count = 0;
+    for (const photo of photos) {
+      const exif = photo.imageInfo?.exif;
+      if (!exif) {
+        continue;
+      }
+
+      if (exif.GPSLatitude && exif.GPSLongitude) {
+        lat += Number(exif.GPSLatitude);
+        lon += Number(exif.GPSLongitude);
+        count++;
+      }
+    }
+
+    if (count > 0) {
+      this.lat = lat / count;
+      this.lon = lon / count;
+    }
+  },
+
+  methods: {
+    search() {
+      if (this.loading || this.searchBar.length === 0) {
+        return;
+      }
+
+      this.loading = true;
+      const q = window.encodeURIComponent(this.searchBar);
+      axios
+        .get(
+          `https://nominatim.openstreetmap.org/search.php?q=${q}&format=jsonv2`
+        )
+        .then((response) => {
+          this.loading = false;
+          this.options = response.data.filter((x: NLocation) => {
+            return x.lat && x.lon && x.display_name;
+          });
+        })
+        .catch((error) => {
+          this.loading = false;
+          console.error(error);
+          showError(
+            this.t("memories", "Failed to search for location with Nominatim.")
+          );
+        });
+    },
+
+    select(option: NLocation) {
+      this.dirty = true;
+      this.lat = Number(option.lat);
+      this.lon = Number(option.lon);
+      this.options = [];
+      this.searchBar = "";
+    },
+
+    result() {
+      if (!this.dirty || !this.lat || !this.lon) {
+        return null;
+      }
+
+      return {
+        GPSLatitude: this.lat,
+        GPSLongitude: this.lon,
+      };
+    },
+  },
+});
+</script>
+
+<style scoped lang="scss">
+.outer {
+  margin-bottom: 10px;
+
+  .lat-lon {
+    padding: 4px;
+    > span {
+      user-select: all;
+    }
+  }
+
+  .loading-spinner {
+    margin: 10px;
+  }
+
+  ul {
+    margin: 10px 0;
+    max-height: 200px;
+    overflow-y: auto;
+
+    li {
+      font-size: 0.9em;
+      padding: 5px 10px;
+      margin: 2px 0;
+      cursor: pointer;
+
+      &:hover {
+        background-color: var(--color-background-hover);
+      }
+    }
+  }
+}
+</style>
diff --git a/src/components/modal/EditMetadataModal.vue b/src/components/modal/EditMetadataModal.vue
index 701b5cf4..52c42ff2 100644
--- a/src/components/modal/EditMetadataModal.vue
+++ b/src/components/modal/EditMetadataModal.vue
@@ -37,6 +37,13 @@
         </div>
         <EditExif ref="editExif" :photos="photos" />
       </div>
+
+      <div v-if="sections.includes(4)">
+        <div class="title-text">
+          {{ t("memories", "Geolocation") }}
+        </div>
+        <EditLocation ref="editLocation" :photos="photos" />
+      </div>
     </div>
 
     <div v-if="processing">
@@ -56,9 +63,10 @@ const NcProgressBar = () =>
   import("@nextcloud/vue/dist/Components/NcProgressBar");
 import Modal from "./Modal.vue";
 
-import EditExif from "./EditExif.vue";
 import EditDate from "./EditDate.vue";
 import EditTags from "./EditTags.vue";
+import EditExif from "./EditExif.vue";
+import EditLocation from "./EditLocation.vue";
 
 import { showError } from "@nextcloud/dialogs";
 import { emit } from "@nextcloud/event-bus";
@@ -74,9 +82,10 @@ export default defineComponent({
     NcProgressBar,
     Modal,
 
-    EditExif,
     EditDate,
     EditTags,
+    EditExif,
+    EditLocation,
   },
 
   mixins: [UserConfig],
@@ -95,7 +104,7 @@ export default defineComponent({
       this.$emit("refresh", val);
     },
 
-    async open(photos: IPhoto[], sections: number[] = [1, 2, 3]) {
+    async open(photos: IPhoto[], sections: number[] = [1, 2, 3, 4]) {
       const state = (this.state = Math.random());
       this.show = true;
       this.processing = true;
@@ -164,7 +173,10 @@ export default defineComponent({
       }
 
       // Get exif fields diff
-      const exifResult = (<any>this.$refs.editExif)?.result?.() || {};
+      const exifResult = {
+        ...((<any>this.$refs.editExif)?.result?.() || {}),
+        ...((<any>this.$refs.editLocation)?.result?.() || {}),
+      };
       const tagsResult = (<any>this.$refs.editTags)?.result?.() || null;
 
       // Start processing
diff --git a/src/components/modal/FaceList.vue b/src/components/modal/FaceList.vue
index 07246a3f..e9077341 100644
--- a/src/components/modal/FaceList.vue
+++ b/src/components/modal/FaceList.vue
@@ -6,7 +6,9 @@
         :label="t('memories', 'Search')"
         :placeholder="t('memories', 'Search')"
         @input="searchChanged"
-      />
+      >
+        <Magnify :size="16" />
+      </NcTextField>
     </div>
 
     <div class="photo" v-for="photo of detail" :key="photo.fileid">
@@ -28,11 +30,14 @@ import NcTextField from "@nextcloud/vue/dist/Components/NcTextField";
 import * as dav from "../../services/DavRequests";
 import Fuse from "fuse.js";
 
+import Magnify from "vue-material-design-icons/Magnify.vue";
+
 export default defineComponent({
   name: "FaceList",
   components: {
     Tag,
     NcTextField,
+    Magnify,
   },
 
   data: () => ({