feat(ui): Migrate to PatternFly 4 design framework

This change is a rewrite of the existing OpenDC frontend in order to
migrate to the PatternFly 4 design framework.

PatternFly is used by Red Hat for various computing related services such
as OpenShift, Red Hat Virtualization and Cockpit. Since their design
requirements are very similar to those of OpenDC (modeling computing
services), migrating to PatternFly 4 allows us to re-use design choices
from these services.

See https://www.patternfly.org/v4/ for more information about
PatternFly.

1 files changed, 139 insertions, 0 deletions

diff --git a/opendc-web/opendc-web-ui/src/components/modals/custom-components/NewPortfolioModal.js b/opendc-web/opendc-web-ui/src/components/modals/custom-components/NewPortfolioModal.js
new file mode 100644
index 00000000..afe07597
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/modals/custom-components/NewPortfolioModal.js
@@ -0,0 +1,139 @@
+import PropTypes from 'prop-types'
+import React, { useRef, useState } from 'react'
+import Modal from '../Modal'
+import {
+    Form,
+    FormGroup,
+    FormSection,
+    NumberInput,
+    Select,
+    SelectGroup,
+    SelectOption,
+    SelectVariant,
+    TextInput,
+} from '@patternfly/react-core'
+import { METRIC_GROUPS, METRIC_NAMES } from '../../../util/available-metrics'
+
+const NewPortfolioModal = ({ isOpen, onSubmit: onSubmitUpstream, onCancel: onUpstreamCancel }) => {
+    const nameInput = useRef(null)
+    const [repeats, setRepeats] = useState(1)
+    const [isSelectOpen, setSelectOpen] = useState(false)
+    const [selectedMetrics, setSelectedMetrics] = useState([])
+
+    const [isSubmitted, setSubmitted] = useState(false)
+    const [errors, setErrors] = useState({})
+
+    const clearState = () => {
+        setSubmitted(false)
+        setErrors({})
+        nameInput.current.value = ''
+        setRepeats(1)
+        setSelectOpen(false)
+        setSelectedMetrics([])
+    }
+
+    const onSubmit = (event) => {
+        setSubmitted(true)
+
+        if (event) {
+            event.preventDefault()
+        }
+
+        const name = nameInput.current.value
+
+        if (!name) {
+            setErrors({ name: true })
+            return false
+        } else {
+            onSubmitUpstream(name, { enabledMetrics: selectedMetrics, repeatsPerScenario: repeats })
+        }
+
+        clearState()
+        return false
+    }
+    const onCancel = () => {
+        onUpstreamCancel()
+        clearState()
+    }
+
+    const onSelect = (event, selection) => {
+        if (selectedMetrics.includes(selection)) {
+            setSelectedMetrics((metrics) => metrics.filter((item) => item !== selection))
+        } else {
+            setSelectedMetrics((metrics) => [...metrics, selection])
+        }
+    }
+
+    return (
+        <Modal title="New Portfolio" isOpen={isOpen} onSubmit={onSubmit} onCancel={onCancel}>
+            <Form onSubmit={onSubmit}>
+                <FormSection>
+                    <FormGroup
+                        label="Name"
+                        fieldId="name"
+                        isRequired
+                        validated={isSubmitted && errors.name ? 'error' : 'default'}
+                        helperTextInvalid="This field cannot be empty"
+                    >
+                        <TextInput
+                            name="name"
+                            id="name"
+                            type="text"
+                            isRequired
+                            ref={nameInput}
+                            placeholder="My Portfolio"
+                        />
+                    </FormGroup>
+                </FormSection>
+                <FormSection title="Targets" titleElement="h4">
+                    <FormGroup label="Metrics" fieldId="metrics">
+                        <Select
+                            variant={SelectVariant.typeaheadMulti}
+                            typeAheadAriaLabel="Select a metric"
+                            onToggle={() => setSelectOpen(!isSelectOpen)}
+                            onSelect={onSelect}
+                            onClear={() => setSelectedMetrics([])}
+                            selections={selectedMetrics}
+                            isOpen={isSelectOpen}
+                            placeholderText="Select a metric"
+                            menuAppendTo="parent"
+                            maxHeight="300px"
+                            chipGroupProps={{ numChips: 1 }}
+                            isGrouped
+                        >
+                            {Object.entries(METRIC_GROUPS).map(([group, metrics]) => (
+                                <SelectGroup label={group} key={group}>
+                                    {metrics.map((metric) => (
+                                        <SelectOption key={metric} value={metric}>
+                                            {METRIC_NAMES[metric]}
+                                        </SelectOption>
+                                    ))}
+                                </SelectGroup>
+                            ))}
+                        </Select>
+                    </FormGroup>
+                    <FormGroup label="Repeats per Scenario" fieldId="repeats">
+                        <NumberInput
+                            id="repeats"
+                            inputName="repeats"
+                            type="number"
+                            value={repeats}
+                            onChange={(e) => setRepeats(Number(e.target.value))}
+                            onPlus={() => setRepeats((r) => r + 1)}
+                            onMinus={() => setRepeats((r) => r - 1)}
+                            min={1}
+                        />
+                    </FormGroup>
+                </FormSection>
+            </Form>
+        </Modal>
+    )
+}
+
+NewPortfolioModal.propTypes = {
+    isOpen: PropTypes.bool.isRequired,
+    onSubmit: PropTypes.func.isRequired,
+    onCancel: PropTypes.func.isRequired,
+}
+
+export default NewPortfolioModal