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, 36 insertions, 0 deletions

diff --git a/opendc-web/opendc-web-ui/src/components/topologies/map/groups/GridGroup.js b/opendc-web/opendc-web-ui/src/components/topologies/map/groups/GridGroup.js
new file mode 100644
index 00000000..d66a18de
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/topologies/map/groups/GridGroup.js
@@ -0,0 +1,36 @@
+import React from 'react'
+import { Group, Line } from 'react-konva'
+import { GRID_COLOR } from '../../../../util/colors'
+import { GRID_LINE_WIDTH_IN_PIXELS, MAP_SIZE, MAP_SIZE_IN_PIXELS, TILE_SIZE_IN_PIXELS } from '../MapConstants'
+
+const MAP_COORDINATE_ENTRIES = Array.from(new Array(MAP_SIZE), (x, i) => i)
+const HORIZONTAL_POINT_PAIRS = MAP_COORDINATE_ENTRIES.map((index) => [
+    0,
+    index * TILE_SIZE_IN_PIXELS,
+    MAP_SIZE_IN_PIXELS,
+    index * TILE_SIZE_IN_PIXELS,
+])
+const VERTICAL_POINT_PAIRS = MAP_COORDINATE_ENTRIES.map((index) => [
+    index * TILE_SIZE_IN_PIXELS,
+    0,
+    index * TILE_SIZE_IN_PIXELS,
+    MAP_SIZE_IN_PIXELS,
+])
+
+function GridGroup() {
+    return (
+        <Group>
+            {HORIZONTAL_POINT_PAIRS.concat(VERTICAL_POINT_PAIRS).map((points, index) => (
+                <Line
+                    key={index}
+                    points={points}
+                    stroke={GRID_COLOR}
+                    strokeWidth={GRID_LINE_WIDTH_IN_PIXELS}
+                    listening={false}
+                />
+            ))}
+        </Group>
+    )
+}
+
+export default GridGroup