merge: Address technical dept in topology view (#162)

This pull request aims to address some of the technical debt in the topology 
view of the OpenDC frontend.

* Add support for panning of the datacenter topology
* Isolate world coordinate space (world objects do not depend on camera scale or position)
* Split transpiled modules into a separate chunk to reduce deduplication
* Encode state in topology actions to reduce global state
* Restructure components per page
* Enable more ESLint rules through `eslint:recommended` ruleset
* Move page components in separate files.

1 files changed, 61 insertions, 0 deletions

diff --git a/opendc-web/opendc-web-ui/src/components/topologies/map/layers/RoomHoverLayer.js b/opendc-web/opendc-web-ui/src/components/topologies/map/layers/RoomHoverLayer.js
new file mode 100644
index 00000000..59f83b2b
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/topologies/map/layers/RoomHoverLayer.js
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2021 AtLarge Research
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+import React from 'react'
+import { useDispatch, useSelector } from 'react-redux'
+import { toggleTileAtLocation } from '../../../../redux/actions/topology/building'
+import {
+    deriveValidNextTilePositions,
+    findPositionInPositions,
+    findPositionInRooms,
+} from '../../../../util/tile-calculations'
+import HoverLayerComponent from './HoverLayerComponent'
+
+function RoomHoverLayer() {
+    const dispatch = useDispatch()
+    const onClick = (x, y) => dispatch(toggleTileAtLocation(x, y))
+    const isEnabled = useSelector((state) => state.construction.currentRoomInConstruction !== '-1')
+    const isValid = useSelector((state) => (x, y) => {
+        const newRoom = { ...state.objects.room[state.construction.currentRoomInConstruction] }
+        const oldRooms = Object.keys(state.objects.room)
+            .map((id) => ({ ...state.objects.room[id] }))
+            .filter(
+                (room) =>
+                    state.objects.topology[state.currentTopologyId].rooms.indexOf(room._id) !== -1 &&
+                    room._id !== state.construction.currentRoomInConstruction
+            )
+
+        ;[...oldRooms, newRoom].forEach((room) => {
+            room.tiles = room.tiles.map((tileId) => state.objects.tile[tileId])
+        })
+        if (newRoom.tiles.length === 0) {
+            return findPositionInRooms(oldRooms, x, y) === -1
+        }
+
+        const validNextPositions = deriveValidNextTilePositions(oldRooms, newRoom.tiles)
+        return findPositionInPositions(validNextPositions, x, y) !== -1
+    })
+
+    return <HoverLayerComponent onClick={onClick} isEnabled={isEnabled} isValid={isValid} />
+}
+
+export default RoomHoverLayer