build: Flatten project structure

This change updates the project structure to become flattened. 
Previously, the simulator, frontend and API each lived into their own directory. 

With this change, all modules of the project live in the top-level directory of 
the repository.

9 files changed, 289 insertions, 0 deletions

diff --git a/opendc-web/opendc-web-ui/src/components/app/map/elements/Backdrop.js b/opendc-web/opendc-web-ui/src/components/app/map/elements/Backdrop.js
new file mode 100644
index 00000000..8ccfe584
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/elements/Backdrop.js
@@ -0,0 +1,8 @@
+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/opendc-web/opendc-web-ui/src/components/app/map/elements/GrayLayer.js b/opendc-web/opendc-web-ui/src/components/app/map/elements/GrayLayer.js
new file mode 100644
index 00000000..c54a34ad
--- /dev/null
+++ b/opendc-web/opendc-web-ui/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/opendc-web/opendc-web-ui/src/components/app/map/elements/HoverTile.js b/opendc-web/opendc-web-ui/src/components/app/map/elements/HoverTile.js
new file mode 100644
index 00000000..912229c4
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/elements/HoverTile.js
@@ -0,0 +1,27 @@
+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/opendc-web/opendc-web-ui/src/components/app/map/elements/ImageComponent.js b/opendc-web/opendc-web-ui/src/components/app/map/elements/ImageComponent.js
new file mode 100644
index 00000000..2b5c569f
--- /dev/null
+++ b/opendc-web/opendc-web-ui/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/opendc-web/opendc-web-ui/src/components/app/map/elements/RackFillBar.js b/opendc-web/opendc-web-ui/src/components/app/map/elements/RackFillBar.js
new file mode 100644
index 00000000..8c573a6f
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/elements/RackFillBar.js
@@ -0,0 +1,68 @@
+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/opendc-web/opendc-web-ui/src/components/app/map/elements/RoomTile.js b/opendc-web/opendc-web-ui/src/components/app/map/elements/RoomTile.js
new file mode 100644
index 00000000..43bf918e
--- /dev/null
+++ b/opendc-web/opendc-web-ui/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/opendc-web/opendc-web-ui/src/components/app/map/elements/TileObject.js b/opendc-web/opendc-web-ui/src/components/app/map/elements/TileObject.js
new file mode 100644
index 00000000..9e87cc82
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/elements/TileObject.js
@@ -0,0 +1,25 @@
+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/opendc-web/opendc-web-ui/src/components/app/map/elements/TilePlusIcon.js b/opendc-web/opendc-web-ui/src/components/app/map/elements/TilePlusIcon.js
new file mode 100644
index 00000000..be3a00a8
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/elements/TilePlusIcon.js
@@ -0,0 +1,44 @@
+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/opendc-web/opendc-web-ui/src/components/app/map/elements/WallSegment.js b/opendc-web/opendc-web-ui/src/components/app/map/elements/WallSegment.js
new file mode 100644
index 00000000..8aa2aebf
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/app/map/elements/WallSegment.js
@@ -0,0 +1,32 @@
+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