From 2ed52f1a547a7d332dc62132f5eaa80064a05aec Mon Sep 17 00:00:00 2001
From: "D. Berge" <dberge@aaltronav.eu>
Date: Sat, 22 Aug 2020 20:43:23 +0200
Subject: [PATCH] Add data manipulation functionality to Log component.

It is now possible to add, edit and delete events.
---
 lib/www/client/source/src/views/Log.vue | 556 ++++++++++++++++++++++--
 1 file changed, 512 insertions(+), 44 deletions(-)

diff --git a/lib/www/client/source/src/views/Log.vue b/lib/www/client/source/src/views/Log.vue
index fad0f0e..68d93d9 100644
--- a/lib/www/client/source/src/views/Log.vue
+++ b/lib/www/client/source/src/views/Log.vue
@@ -1,19 +1,8 @@
 <template>
   <v-container fluid>
-    <v-data-table
-    :headers="headers"
-    :items="rows"
-    item-key="ts0"
-    sort-by="ts0"
-    :sort-desc="true"
-    :x-server-items-length="eventCount"
-    :x-options.sync="options"
-    :search="filter"
-    :loading="loading"
-    :fixed-header="true"
-    >
 
-      <template v-slot:top>
+    <v-card>
+      <v-card-title>
         <v-toolbar flat>
           <v-toolbar-title>
             {{
@@ -28,6 +17,16 @@
                   : "All events"
             }}
           </v-toolbar-title>
+
+            <dougal-event-edit-dialog
+              v-model="eventDialog"
+              :allowed-labels="userLabels"
+              :preset-remarks="presetRemarks"
+              :default-timestamp="defaultEventTimestamp"
+              :default-sequence="$route.params.sequence && (Number($route.params.sequence) || Number($route.params.sequence.split(';').sort().pop()))"
+              @save="saveEvent"
+            ></dougal-event-edit-dialog>
+
           <v-spacer></v-spacer>
           <v-text-field
             v-model="filter"
@@ -35,39 +34,228 @@
             label="Search"
             single-line
             hide-details></v-text-field>
-      </v-toolbar>
-      </template>
+        </v-toolbar>
+      </v-card-title>
+      <v-card-text>
 
-      <template v-slot:item.ts0="props">
-        <span style="white-space:nowrap;">
-          {{ props.value.replace(/(.{10})T(.{8}).{4}Z$/, "$1 $2") }}
+    <v-data-table
+    :headers="headers"
+    :items="rows"
+    item-key="tstamp"
+    sort-by="tstamp"
+    :sort-desc="true"
+    :x-server-items-length="eventCount"
+    :x-options.sync="options"
+    :search="filter"
+    :loading="loading"
+    fixed-header
+    >
+
+      <template v-slot:item.tstamp="{value}">
+        <span style="white-space:nowrap;" v-if="value">
+          {{ value.replace(/(.{10})T(.{8}).{4}Z$/, "$1 $2") }}
         </span>
       </template>
 
-      <template v-slot:item.label="props">
-        <v-chip v-for="label in props.value"
-          small
-          :color="labels[label].colour"
-          :title="labels[label].description"
-          v-text="label"></v-chip>
+      <template v-slot:item.remarks="{item}">
+        <v-edit-dialog v-if="item.items"
+          large
+          @save="rowEditorSave"
+          @cancel="rowEditorCancel"
+          @open="rowEditorOpen(item)"
+          @close="rowEditorClose"
+        > <div v-html="item.items.map(i => i.remarks).join('<br/>')"></div>
+          <template v-slot:input>
+            <h3>{{
+              editedRow.sequence
+                ? `${editedRow.sequence} @ ${editedRow.point}`
+                : editedRow.tstamp
+                  ? editedRow.tstamp.replace(/(.{10})T(.{8}).{4}Z$/, "$1 $2")
+                  : editedRow.key
+            }}</h3><hr/>
+
+
+            <dougal-context-menu
+              :value="remarksMenu"
+              @input="addPresetRemark"
+              :items="presetRemarks"
+              absolute
+            ></dougal-context-menu>
+
+
+            <template  v-for="editedItem in editedRow.items">
+              <v-text-field
+                v-model="editedItem.remarks"
+                label="Edit"
+                single-line
+                hide-details="auto"
+              >
+
+                <template v-slot:prepend>
+                  <v-icon v-show="!editedItem.remarks && presetRemarks"
+                    title="Select predefined comments"
+                    color="primary"
+                    @click="(e) => {remarksMenuItem = editedItem; remarksMenu = e}"
+                  >
+                    mdi-dots-vertical
+                  </v-icon>
+                </template>
+
+                <template v-slot:append v-if="editedItem.remarks || editedItem.labels.filter(l => labels[l].model.user).length">
+                  <v-hover v-slot:default="{hover}">
+                    <v-icon
+                      title="Remove comment"
+                      :color="hover ? 'error' : 'error lighten-4'"
+                      @click="removeEvent(editedItem, editedRow)"
+                    >mdi-minus-circle</v-icon>
+                  </v-hover>
+                </template>
+              </v-text-field>
+
+              <v-container>
+                <v-row no-gutters>
+                  <v-col class="flex-grow-0">
+                    <!-- Add a new label control -->
+                    <v-edit-dialog
+                      large
+                      @save="addLabel(editedItem)"
+                      @cancel="selectedLabels=[]"
+                    >
+                      <v-icon
+                        small
+                        title="Add label"
+                      >mdi-tag-plus</v-icon>
+                      <template v-slot:input>
+                        <v-autocomplete
+                          :items="availableLabels(editedItem.labels)"
+                          v-model="selectedLabels"
+                          label="Add label"
+                          chips
+                          deletable-chips
+                          multiple
+                          autofocus
+                          @keydown.stop="(e) => {if (e.key == 'Enter') debug(e)}"
+                          @input="labelSearch = null;"
+                          :search-input.sync="labelSearch"
+                        >
+
+                          <template v-slot:selection="data">
+                            <v-chip
+                              v-bind="data.attrs"
+                              :input-value="data.selected"
+                              small
+                              @click="data.select"
+                              :color="labels[data.item].view.colour"
+                              :title="labels[data.item].view.description"
+                            >{{data.item}}</v-chip>
+                          </template>
+
+
+                        </v-autocomplete>
+                      </template>
+                    </v-edit-dialog>
+                  </v-col>
+                  <v-col class="flex-grow-0">
+                    <v-chip-group>
+                      <v-chip v-for="label in editedItem.labels" :key="label"
+                        small
+                        :close="labels[label].model.user"
+                        :color="labels[label].view.colour"
+                        :title="labels[label].view.description"
+                        @click:close="removeLabel(label, editedItem)"
+                      >{{label}}</v-chip>
+                    </v-chip-group>
+                  </v-col>
+                </v-row>
+              </v-container>
+
+            </template>
+
+            <v-icon v-if="editedRow.items.length == 0 || editedRow.items[editedRow.items.length-1].remarks"
+              color="primary"
+              title="Add comment"
+              class="mb-2"
+            @click="addEvent"
+            >mdi-plus-circle</v-icon>
+          </template>
+        </v-edit-dialog>
+        <v-edit-dialog v-else
+          @save="rowEditorSave"
+          @cancel="rowEditorCancel"
+          @open="rowEditorOpen"
+          @close="rowEditorClose"
+        >
+          <template v-slot:input>
+            <v-text-field
+              v-model="props.item.remarks[0]"
+              label="Edit"
+              single-line
+            ></v-text-field>
+          </template>
+        </v-edit-dialog>
+
       </template>
 
+      <!-- Labels column -->
+      <template v-slot:item.labels="{item}">
+        <!-- Existing labels for row -->
+        <v-chip v-for="label in item.items.map(i => i.labels).flat()"
+          class="ma-1"
+          small
+          :color="labels[label].view.colour"
+          :title="labels[label].view.description"
+          :key="label"
+          @click:close="removeLabel(label, item)"
+        >{{label}}</v-chip>
+      </template>
+
+      <!-- Actions column (FIXME currently not used) -->
+      <template v-slot:item.actions="{ item }">
+        <div style="white-space:nowrap;">
+          <v-icon v-if="$root.user || true"
+            small
+            class="mr-2"
+            title="View on map"
+            @click="viewOnMap(item)"
+            disabled
+          >
+            mdi-map
+          </v-icon>
+        </div>
+      </template>
 
     </v-data-table>
+      </v-card-text>
+    </v-card>
   </v-container>
 </template>
 
 <script>
 import { mapActions } from 'vuex';
+import DougalContextMenu from '@/components/context-menu';
+import DougalEventEditDialog from '@/components/event-edit-dialog'
+
+function ArraysEqual (a, b) {
+  return a.every(i => b.includes(i)) && b.every(i => a.includes(i));
+}
+
+function EventKey (e) {
+  return e.type+e.id;
+}
 
 export default {
   name: "Log",
 
+  components: {
+    DougalEventEditDialog,
+    DougalContextMenu
+  },
+
   data () {
     return {
       headers: [
         {
-          value: "ts0",
+          value: "tstamp",
           text: "Timestamp",
           width: "20ex"
         },
@@ -78,7 +266,7 @@ export default {
           width: "10ex"
         },
         {
-          value: "shot_number",
+          value: "point",
           text: "Shotpoint",
           align: "end",
           width: "10ex"
@@ -89,16 +277,35 @@ export default {
           width: "100%"
         },
         {
-          value: "label",
+          value: "labels",
           text: "Labels"
         },
+        {
+          value: "actions",
+          text: "Actions",
+          sortable: false
+        }
       ],
       items: [],
       labels: {},
       options: {},
       filter: "",
       loading: false,
-      eventCount: null
+      eventCount: null,
+      eventDialog: false,
+      defaultEventTimestamp: null,
+      presetRemarks: null,
+      remarksMenu: null,
+      remarksMenuItem: null,
+      editedRow: {
+        key: null,
+        tstamp: null,
+        sequence: null,
+        point: null,
+        items: []
+      },
+      selectedLabels: [],
+      labelSearch: null
     }
   },
 
@@ -106,25 +313,32 @@ export default {
     rows () {
       const rows = {};
       this.items.forEach(i => {
-        const key = i.ts0 || (i.sequence+"@"+i.shot_number);
+        const key = i.tstamp || (i.sequence+"@"+i.point);
         if (!rows[key]) {
-          rows[key] = Object.assign({}, i);
-          rows[key].label = [ ];
-          rows[key].remarks = [ ];
+          rows[key] = {
+            key,
+            tstamp: i.tstamp,
+            sequence: i.sequence,
+            point: i.point,
+            items: []
+          }
         }
 
         const row = rows[key];
 
-        if (i.remarks) {
-          row.remarks.push(i.remarks);
-        }
-
-        if (i.label) {
-          row.label.push(i.label);
-        }
-
+        row.items.push(i);
       });
       return Object.values(rows);
+    },
+
+    userLabels () {
+      const filtered = {};
+      for (const key in this.labels) {
+        if (this.labels[key].model.user) {
+          filtered[key] = this.labels[key];
+        }
+      }
+      return filtered;
     }
   },
 
@@ -134,11 +348,22 @@ export default {
         //this.getLines();
       },
       deep: true
+    },
+
+    eventDialog (val) {
+      if (val) {
+        // If not online
+        this.defaultEventTimestamp = Date.now();
+      }
     }
   },
 
   methods: {
 
+    debug (value) {
+      console.log("DEBUG", value);
+    },
+
     async getEventCount () {
       //this.eventCount = await this.api([`/project/${this.$route.params.project}/event/?count`]);
       this.eventCount = null;
@@ -171,20 +396,263 @@ export default {
       this.loading = false;
     },
 
-    async getLabels () {
+    async getLabelDefinitions () {
       const url = `/project/${this.$route.params.project}/label`;
 
+      const labelSet = {};
       const labels = await this.api([url]) || [];
-      labels.forEach( l => this.labels[l.name] = l.data );
+      labels.forEach( l => labelSet[l.name] = l.data );
+      this.labels = labelSet;
     },
 
-    ...mapActions(["api"])
+    async getPresetRemarks () {
+      const url = `/project/${this.$route.params.project}/configuration/events/presetRemarks`;
+
+      this.presetRemarks = await this.api([url]);
+    },
+
+    newItem (from = {}) {
+      const type = (from.sequence && from.point) ? "sequence" : "timed";
+      const tstamp = from.tstamp || (new Date).toISOString();
+      const sequence = from.sequence || null; // FIXME TODO Use vuex
+      const point = from.point || null; // FIXME TODO Use vuex
+      const geometry = from.geometry || null; // FIXME TODO Use vuex
+      return {
+        type,
+        id: null,
+        tstamp,
+        sequence,
+        point,
+        remarks: "",
+        labels: [],
+        geometry
+      };
+    },
+
+    async saveEvent (event) {
+      console.log("Saving", event);
+      const url = `/project/${this.$route.params.project}/event`;
+      await this.api([url, {
+        method: "POST",
+        body: event
+      }]);
+      this.showSnack(["New event saved", "success"]);
+      this.getEvents();
+      console.log("Done");
+    },
+
+    saveLabels (event) {
+      console.log("saveLabels", event);
+    },
+
+    rowEditorOpen (row) {
+      console.log(row);
+      this.editedRow = JSON.parse(JSON.stringify(row));
+      for (const item of this.editedRow.items) {
+        if (item.type != "timed" && item.type != "sequence") {
+          if (item.sequence && item.point) {
+            item.type = "sequence";
+          } else {
+            item.type = "timed";
+          }
+        }
+      }
+    },
+
+    rowEditorClose () {
+    },
+
+    async rowEditorSave () {
+
+      // Helper – returns a callback that checks if two events have the same key
+      function within (item) {
+        return function (i) {
+          return EventKey(i) == EventKey(item);
+        }
+      }
+
+
+      const originalRow = this.rows.find(r => r.key == this.editedRow.key);
+
+      if (!originalRow) {
+        this.showSnack(["Cannot find the original item that was to be edited!", "error"]);
+        return;
+      }
+
+      console.log("rowEditorSave", this.editedRow, originalRow);
+
+      const promises = [];
+
+      for (const editedItem of this.editedRow.items) {
+
+        // Discard non user writable labels
+        editedItem.labels = editedItem.labels.filter(l => this.labels[l].model.user);
+
+        // Try to find this event in originalRow
+        const originalItem = originalRow.items.find(within(editedItem));
+
+        if (originalItem) {
+          // If found, check to see if its remarks or labels have changed
+
+          if (originalItem.remarks != editedItem.remarks || !ArraysEqual(originalItem.labels, editedItem.labels)) {
+            // This item has been modified
+
+            console.log("PUT modified item", editedItem, originalItem);
+            const url = `/project/${this.$route.params.project}/event/${editedItem.type}/${editedItem.id}/`;
+            const request = this.api([url, {
+              method: "PUT",
+              body: editedItem
+            }]);
+
+            promises.push(request);
+          } // Else, the item was not modified
+
+        } else {
+          // If not found, this is a new event
+
+          if (!editedItem.remarks.trim() && !editedItem.labels.length) {
+            // There is nothing to post, discard
+            console.log("Discard empty event", editedItem);
+            continue;
+          }
+
+          console.log("POST new item", editedItem);
+
+          const url = `/project/${this.$route.params.project}/event/`;
+          const request = this.api([url, {
+            method: "POST",
+            body: editedItem
+          }]);
+
+          promises.push(request);
+        }
+      }
+
+      for (const originalItem of originalRow.items) {
+        if (originalItem.virtual) {
+          continue;
+        }
+
+        // Try to find this event in editedRow
+        const editedItem = this.editedRow.items.find(within(originalItem));
+
+        if (!editedItem) {
+          // If not found, it has been deleted
+          console.log("DELETE old item", originalItem);
+
+          const url = `/project/${this.$route.params.project}/event/${originalItem.type}/${originalItem.id}/`;
+          const request = this.api([url, {method: "DELETE"}]);
+
+          promises.push(request);
+        }
+      }
+
+      this.rowEditorCancel();
+      if (promises.length) {
+        this.showSnack(["Saving data…", "info"]);
+        await Promise.all(promises);
+        this.showSnack(["The changes have been saved", "success"]);
+        this.getEvents();
+      }
+
+    },
+
+    rowEditorCancel () {
+      this.$nextTick( () => {
+        this.editedRow = {
+          key: null,
+          tstamp: null,
+          sequence: null,
+          point: null,
+          items: []
+        }
+      });
+    },
+
+    addEvent () {
+      const count = this.editedRow.items.length;
+      const newItem = this.newItem(this.editedRow.items[count-1]);
+      this.editedRow.items.push(newItem);
+    },
+
+    removeEvent (event, row) {
+      const index = row.items.indexOf(event);
+      if (index >= 0) {
+        console.log(JSON.parse(JSON.stringify(event)));
+        if (!event.virtual) {
+          // A virtual event will not be deletable so we can't
+          // remove it
+          row.items.splice(index, 1);
+        } else {
+          // What we do instead is clear any user-entered info
+          event.remarks = "";
+          event.labels = event.labels.filter(l => !this.labels[l].model.user);
+        }
+      }
+    },
+
+    addPresetRemark ({text}) {
+      if (this.remarksMenuItem) {
+        this.remarksMenuItem.remarks = text;
+      }
+      this.remarksMenuItem = null;
+    },
+
+    availableLabels (usedLabels) {
+      return Object.keys(this.labels)
+      .filter(k => !usedLabels.includes(k) && this.labels[k].model.user);
+    },
+
+    addLabel (editedItem) {
+      console.log("addLabel", this.selectedLabels, editedItem);
+
+      this.selectedLabels.forEach(label => {
+        if (!editedItem.labels.includes(label)) {
+          editedItem.labels.push(label);
+        }
+      });
+
+      this.selectedLabels = [];
+    },
+
+    removeLabel (label, item) {
+      console.log("removeLabel", label, item);
+
+      item.labels = item.labels.filter(l => l != label);
+
+/*
+      const url = `/project/${this.$route.params.project}/event/${item.type}/${item.id}/label/${label}`;
+
+      this.api([url, {method: "DELETE"}])
+      .then( () => this.showSnack([`Label ${item.label} removed`, "info"]) );
+*/
+    },
+
+    handleKeyboardEvent (e) {
+      if (e.ctrlKey && !e.altKey && !e.shiftKey && (e.keyCode == 13 || e.key == "F2")) {
+        console.log("Add timed event if offline or shot event if online");
+        this.eventDialog = true;
+      } else if (e.ctrlKey && !e.altKey && e.shiftKey && (e.keyCode == 13 || e.key == "F2")) {
+        console.log("Add timed event (even if online)");
+        this.eventDialog = true;
+      }
+
+    },
+
+    ...mapActions(["api", "showSnack"])
   },
 
   async mounted () {
-    await this.getLabels()
+    await this.getLabelDefinitions()
     this.getEventCount();
     this.getEvents();
+    this.getPresetRemarks();
+
+    window.addEventListener('keyup', this.handleKeyboardEvent);
+  },
+
+  beforeDestroy () {
+    window.removeEventListener('keyup', this.handleKeyboardEvent);
   }
 
 }