Prepare frontend repository for monorepo

This change prepares the frontend Git repository for the monorepo
residing at https://github.com/atlarge-research.com/opendc. To
accomodate for this, we move all files into a frontend subdirectory.

9 files changed, 340 insertions, 0 deletions

diff --git a/frontend/src/components/app/map/elements/Backdrop.js b/frontend/src/components/app/map/elements/Backdrop.js
new file mode 100644
index 00000000..57414463
--- /dev/null
+++ b/frontend/src/components/app/map/elements/Backdrop.js
@@ -0,0 +1,16 @@
+import React from "react";
+import { Rect } from "react-konva";
+import { BACKDROP_COLOR } from "../../../../util/colors";
+import { MAP_SIZE_IN_PIXELS } from "../MapConstants";
+
+const Backdrop = () => (
+  <Rect
+    x={0}
+    y={0}
+    width={MAP_SIZE_IN_PIXELS}
+    height={MAP_SIZE_IN_PIXELS}
+    fill={BACKDROP_COLOR}
+  />
+);
+
+export default Backdrop;
diff --git a/frontend/src/components/app/map/elements/GrayLayer.js b/frontend/src/components/app/map/elements/GrayLayer.js
new file mode 100644
index 00000000..28fadd8a
--- /dev/null
+++ b/frontend/src/components/app/map/elements/GrayLayer.js
@@ -0,0 +1,17 @@
+import React from "react";
+import { Rect } from "react-konva";
+import { GRAYED_OUT_AREA_COLOR } from "../../../../util/colors";
+import { MAP_SIZE_IN_PIXELS } from "../MapConstants";
+
+const GrayLayer = ({ onClick }) => (
+  <Rect
+    x={0}
+    y={0}
+    width={MAP_SIZE_IN_PIXELS}
+    height={MAP_SIZE_IN_PIXELS}
+    fill={GRAYED_OUT_AREA_COLOR}
+    onClick={onClick}
+  />
+);
+
+export default GrayLayer;
diff --git a/frontend/src/components/app/map/elements/HoverTile.js b/frontend/src/components/app/map/elements/HoverTile.js
new file mode 100644
index 00000000..42e6547c
--- /dev/null
+++ b/frontend/src/components/app/map/elements/HoverTile.js
@@ -0,0 +1,30 @@
+import PropTypes from "prop-types";
+import React from "react";
+import { Rect } from "react-konva";
+import {
+  ROOM_HOVER_INVALID_COLOR,
+  ROOM_HOVER_VALID_COLOR
+} from "../../../../util/colors";
+import { TILE_SIZE_IN_PIXELS } from "../MapConstants";
+
+const HoverTile = ({ pixelX, pixelY, isValid, scale, onClick }) => (
+  <Rect
+    x={pixelX}
+    y={pixelY}
+    scaleX={scale}
+    scaleY={scale}
+    width={TILE_SIZE_IN_PIXELS}
+    height={TILE_SIZE_IN_PIXELS}
+    fill={isValid ? ROOM_HOVER_VALID_COLOR : ROOM_HOVER_INVALID_COLOR}
+    onClick={onClick}
+  />
+);
+
+HoverTile.propTypes = {
+  pixelX: PropTypes.number.isRequired,
+  pixelY: PropTypes.number.isRequired,
+  isValid: PropTypes.bool.isRequired,
+  onClick: PropTypes.func.isRequired
+};
+
+export default HoverTile;
diff --git a/frontend/src/components/app/map/elements/ImageComponent.js b/frontend/src/components/app/map/elements/ImageComponent.js
new file mode 100644
index 00000000..cf41ddfe
--- /dev/null
+++ b/frontend/src/components/app/map/elements/ImageComponent.js
@@ -0,0 +1,48 @@
+import PropTypes from "prop-types";
+import React from "react";
+import { Image } from "react-konva";
+
+class ImageComponent extends React.Component {
+  static imageCaches = {};
+  static propTypes = {
+    src: PropTypes.string.isRequired,
+    x: PropTypes.number.isRequired,
+    y: PropTypes.number.isRequired,
+    width: PropTypes.number.isRequired,
+    height: PropTypes.number.isRequired,
+    opacity: PropTypes.number.isRequired
+  };
+
+  state = {
+    image: null
+  };
+
+  componentDidMount() {
+    if (ImageComponent.imageCaches[this.props.src]) {
+      this.setState({ image: ImageComponent.imageCaches[this.props.src] });
+      return;
+    }
+
+    const image = new window.Image();
+    image.src = this.props.src;
+    image.onload = () => {
+      this.setState({ image });
+      ImageComponent.imageCaches[this.props.src] = image;
+    };
+  }
+
+  render() {
+    return (
+      <Image
+        image={this.state.image}
+        x={this.props.x}
+        y={this.props.y}
+        width={this.props.width}
+        height={this.props.height}
+        opacity={this.props.opacity}
+      />
+    );
+  }
+}
+
+export default ImageComponent;
diff --git a/frontend/src/components/app/map/elements/RackFillBar.js b/frontend/src/components/app/map/elements/RackFillBar.js
new file mode 100644
index 00000000..43701d97
--- /dev/null
+++ b/frontend/src/components/app/map/elements/RackFillBar.js
@@ -0,0 +1,89 @@
+import PropTypes from "prop-types";
+import React from "react";
+import { Group, Rect } from "react-konva";
+import {
+  RACK_ENERGY_BAR_BACKGROUND_COLOR,
+  RACK_ENERGY_BAR_FILL_COLOR,
+  RACK_SPACE_BAR_BACKGROUND_COLOR,
+  RACK_SPACE_BAR_FILL_COLOR
+} from "../../../../util/colors";
+import {
+  OBJECT_BORDER_WIDTH_IN_PIXELS,
+  OBJECT_MARGIN_IN_PIXELS,
+  RACK_FILL_ICON_OPACITY,
+  RACK_FILL_ICON_WIDTH,
+  TILE_SIZE_IN_PIXELS
+} from "../MapConstants";
+import ImageComponent from "./ImageComponent";
+
+const RackFillBar = ({ positionX, positionY, type, fillFraction }) => {
+  const halfOfObjectBorderWidth = OBJECT_BORDER_WIDTH_IN_PIXELS / 2;
+  const x =
+    positionX * TILE_SIZE_IN_PIXELS +
+    OBJECT_MARGIN_IN_PIXELS +
+    (type === "space"
+      ? halfOfObjectBorderWidth
+      : 0.5 * (TILE_SIZE_IN_PIXELS - 2 * OBJECT_MARGIN_IN_PIXELS));
+  const startY =
+    positionY * TILE_SIZE_IN_PIXELS +
+    OBJECT_MARGIN_IN_PIXELS +
+    halfOfObjectBorderWidth;
+  const width =
+    0.5 * (TILE_SIZE_IN_PIXELS - OBJECT_MARGIN_IN_PIXELS * 2) -
+    halfOfObjectBorderWidth;
+  const fullHeight =
+    TILE_SIZE_IN_PIXELS -
+    OBJECT_MARGIN_IN_PIXELS * 2 -
+    OBJECT_BORDER_WIDTH_IN_PIXELS;
+
+  const fractionHeight = fillFraction * fullHeight;
+  const fractionY =
+    (positionY + 1) * TILE_SIZE_IN_PIXELS -
+    OBJECT_MARGIN_IN_PIXELS -
+    halfOfObjectBorderWidth -
+    fractionHeight;
+
+  return (
+    <Group>
+      <Rect
+        x={x}
+        y={startY}
+        width={width}
+        height={fullHeight}
+        fill={
+          type === "space"
+            ? RACK_SPACE_BAR_BACKGROUND_COLOR
+            : RACK_ENERGY_BAR_BACKGROUND_COLOR
+        }
+      />
+      <Rect
+        x={x}
+        y={fractionY}
+        width={width}
+        height={fractionHeight}
+        fill={
+          type === "space"
+            ? RACK_SPACE_BAR_FILL_COLOR
+            : RACK_ENERGY_BAR_FILL_COLOR
+        }
+      />
+      <ImageComponent
+        src={"/img/topology/rack-" + type + "-icon.png"}
+        x={x + width * 0.5 - RACK_FILL_ICON_WIDTH * 0.5}
+        y={startY + fullHeight * 0.5 - RACK_FILL_ICON_WIDTH * 0.5}
+        width={RACK_FILL_ICON_WIDTH}
+        height={RACK_FILL_ICON_WIDTH}
+        opacity={RACK_FILL_ICON_OPACITY}
+      />
+    </Group>
+  );
+};
+
+RackFillBar.propTypes = {
+  positionX: PropTypes.number.isRequired,
+  positionY: PropTypes.number.isRequired,
+  type: PropTypes.string.isRequired,
+  fillFraction: PropTypes.number.isRequired
+};
+
+export default RackFillBar;
diff --git a/frontend/src/components/app/map/elements/RoomTile.js b/frontend/src/components/app/map/elements/RoomTile.js
new file mode 100644
index 00000000..71c3bf15
--- /dev/null
+++ b/frontend/src/components/app/map/elements/RoomTile.js
@@ -0,0 +1,20 @@
+import React from "react";
+import { Rect } from "react-konva";
+import Shapes from "../../../../shapes/index";
+import { TILE_SIZE_IN_PIXELS } from "../MapConstants";
+
+const RoomTile = ({ tile, color }) => (
+  <Rect
+    x={tile.positionX * TILE_SIZE_IN_PIXELS}
+    y={tile.positionY * TILE_SIZE_IN_PIXELS}
+    width={TILE_SIZE_IN_PIXELS}
+    height={TILE_SIZE_IN_PIXELS}
+    fill={color}
+  />
+);
+
+RoomTile.propTypes = {
+  tile: Shapes.Tile
+};
+
+export default RoomTile;
diff --git a/frontend/src/components/app/map/elements/TileObject.js b/frontend/src/components/app/map/elements/TileObject.js
new file mode 100644
index 00000000..c1b631db
--- /dev/null
+++ b/frontend/src/components/app/map/elements/TileObject.js
@@ -0,0 +1,29 @@
+import PropTypes from "prop-types";
+import React from "react";
+import { Rect } from "react-konva";
+import { OBJECT_BORDER_COLOR } from "../../../../util/colors";
+import {
+  OBJECT_BORDER_WIDTH_IN_PIXELS,
+  OBJECT_MARGIN_IN_PIXELS,
+  TILE_SIZE_IN_PIXELS
+} from "../MapConstants";
+
+const TileObject = ({ positionX, positionY, color }) => (
+  <Rect
+    x={positionX * TILE_SIZE_IN_PIXELS + OBJECT_MARGIN_IN_PIXELS}
+    y={positionY * TILE_SIZE_IN_PIXELS + OBJECT_MARGIN_IN_PIXELS}
+    width={TILE_SIZE_IN_PIXELS - OBJECT_MARGIN_IN_PIXELS * 2}
+    height={TILE_SIZE_IN_PIXELS - OBJECT_MARGIN_IN_PIXELS * 2}
+    fill={color}
+    stroke={OBJECT_BORDER_COLOR}
+    strokeWidth={OBJECT_BORDER_WIDTH_IN_PIXELS}
+  />
+);
+
+TileObject.propTypes = {
+  positionX: PropTypes.number.isRequired,
+  positionY: PropTypes.number.isRequired,
+  color: PropTypes.string.isRequired
+};
+
+export default TileObject;
diff --git a/frontend/src/components/app/map/elements/TilePlusIcon.js b/frontend/src/components/app/map/elements/TilePlusIcon.js
new file mode 100644
index 00000000..06377152
--- /dev/null
+++ b/frontend/src/components/app/map/elements/TilePlusIcon.js
@@ -0,0 +1,52 @@
+import PropTypes from "prop-types";
+import React from "react";
+import { Group, Line } from "react-konva";
+import { TILE_PLUS_COLOR } from "../../../../util/colors";
+import {
+  TILE_PLUS_MARGIN_IN_PIXELS,
+  TILE_PLUS_WIDTH_IN_PIXELS,
+  TILE_SIZE_IN_PIXELS
+} from "../MapConstants";
+
+const TilePlusIcon = ({ pixelX, pixelY, mapScale }) => {
+  const linePoints = [
+    [
+      pixelX + 0.5 * TILE_SIZE_IN_PIXELS * mapScale,
+      pixelY + TILE_PLUS_MARGIN_IN_PIXELS * mapScale,
+      pixelX + 0.5 * TILE_SIZE_IN_PIXELS * mapScale,
+      pixelY +
+        TILE_SIZE_IN_PIXELS * mapScale -
+        TILE_PLUS_MARGIN_IN_PIXELS * mapScale
+    ],
+    [
+      pixelX + TILE_PLUS_MARGIN_IN_PIXELS * mapScale,
+      pixelY + 0.5 * TILE_SIZE_IN_PIXELS * mapScale,
+      pixelX +
+        TILE_SIZE_IN_PIXELS * mapScale -
+        TILE_PLUS_MARGIN_IN_PIXELS * mapScale,
+      pixelY + 0.5 * TILE_SIZE_IN_PIXELS * mapScale
+    ]
+  ];
+  return (
+    <Group>
+      {linePoints.map((points, index) => (
+        <Line
+          key={index}
+          points={points}
+          lineCap="round"
+          stroke={TILE_PLUS_COLOR}
+          strokeWidth={TILE_PLUS_WIDTH_IN_PIXELS * mapScale}
+          listening={false}
+        />
+      ))}
+    </Group>
+  );
+};
+
+TilePlusIcon.propTypes = {
+  pixelX: PropTypes.number,
+  pixelY: PropTypes.number,
+  mapScale: PropTypes.number
+};
+
+export default TilePlusIcon;
diff --git a/frontend/src/components/app/map/elements/WallSegment.js b/frontend/src/components/app/map/elements/WallSegment.js
new file mode 100644
index 00000000..c5011656
--- /dev/null
+++ b/frontend/src/components/app/map/elements/WallSegment.js
@@ -0,0 +1,39 @@
+import React from "react";
+import { Line } from "react-konva";
+import Shapes from "../../../../shapes/index";
+import { WALL_COLOR } from "../../../../util/colors";
+import { TILE_SIZE_IN_PIXELS, WALL_WIDTH_IN_PIXELS } from "../MapConstants";
+
+const WallSegment = ({ wallSegment }) => {
+  let points;
+  if (wallSegment.isHorizontal) {
+    points = [
+      wallSegment.startPosX * TILE_SIZE_IN_PIXELS,
+      wallSegment.startPosY * TILE_SIZE_IN_PIXELS,
+      (wallSegment.startPosX + wallSegment.length) * TILE_SIZE_IN_PIXELS,
+      wallSegment.startPosY * TILE_SIZE_IN_PIXELS
+    ];
+  } else {
+    points = [
+      wallSegment.startPosX * TILE_SIZE_IN_PIXELS,
+      wallSegment.startPosY * TILE_SIZE_IN_PIXELS,
+      wallSegment.startPosX * TILE_SIZE_IN_PIXELS,
+      (wallSegment.startPosY + wallSegment.length) * TILE_SIZE_IN_PIXELS
+    ];
+  }
+
+  return (
+    <Line
+      points={points}
+      lineCap="round"
+      stroke={WALL_COLOR}
+      strokeWidth={WALL_WIDTH_IN_PIXELS}
+    />
+  );
+};
+
+WallSegment.propTypes = {
+  wallSegment: Shapes.WallSegment
+};
+
+export default WallSegment;