refactor(hog): code editors

frontend/src/lib/monaco/CodeEditor.tsx

@@ -0,0 +1,106 @@
+import './CodeEditor.scss'
+
+import MonacoEditor, { type EditorProps, Monaco } from '@monaco-editor/react'
+import { useValues } from 'kea'
+import { Spinner } from 'lib/lemon-ui/Spinner'
+import { codeEditorLogic } from 'lib/monaco/codeEditorLogic'
+import { hogQLAutocompleteProvider } from 'lib/monaco/hogQLAutocompleteProvider'
+import { hogQLMetadataProvider } from 'lib/monaco/hogQLMetadataProvider'
+import * as hog from 'lib/monaco/languages/hog'
+import * as hogQL from 'lib/monaco/languages/hogql'
+import { inStorybookTestRunner } from 'lib/utils'
+import type { editor as importedEditor, IDisposable } from 'monaco-editor'
+import { useEffect, useRef, useState } from 'react'
+
+import { themeLogic } from '~/layout/navigation-3000/themeLogic'
+
+export interface CodeEditorProps extends Omit<EditorProps, 'loading' | 'theme'> {
+    logicKey?: string
+}
+let codeEditorIndex = 0
+
+export function CodeEditor({ logicKey, options, onMount, value, ...editorProps }: CodeEditorProps): JSX.Element {
+    const { isDarkModeOn } = useValues(themeLogic)
+    const scrollbarRendering = !inStorybookTestRunner() ? 'auto' : 'hidden'
+    const [realKey] = useState(() => codeEditorIndex++)
+    const [monacoAndEditor, setMonacoAndEditor] = useState(
+        null as [Monaco, importedEditor.IStandaloneCodeEditor] | null
+    )
+    const [monaco, editor] = monacoAndEditor ?? []
+    const builtCodeEditorLogic = codeEditorLogic({
+        key: logicKey ?? `new/${realKey}`,
+        query: value ?? '',
+        language: editorProps.language,
+        monaco: monaco,
+        editor: editor,
+    })
+
+    // Using useRef, not useState, as we don't want to reload the component when this changes.
+    const monacoDisposables = useRef([] as IDisposable[])
+    useEffect(() => {
+        return () => {
+            monacoDisposables.current.forEach((d) => d?.dispose())
+        }
+    }, [])
+
+    return (
+        <MonacoEditor // eslint-disable-line react/forbid-elements
+            theme={isDarkModeOn ? 'vs-dark' : 'vs-light'}
+            loading={<Spinner />}
+            options={{
+                // :TRICKY: We need to declare all options here, as omitting something will carry its value from one <CodeEditor> to another.
+                minimap: {
+                    enabled: false,
+                },
+                scrollBeyondLastLine: false,
+                automaticLayout: true,
+                fixedOverflowWidgets: true,
+                wordWrap: 'off',
+                lineNumbers: 'on',
+                ...options,
+                padding: { bottom: 8, top: 8 },
+                scrollbar: {
+                    vertical: scrollbarRendering,
+                    horizontal: scrollbarRendering,
+                    ...options?.scrollbar,
+                },
+            }}
+            value={value}
+            {...editorProps}
+            onMount={(editor, monaco) => {
+                setMonacoAndEditor([monaco, editor])
+                if (editorProps?.language === 'hog') {
+                    if (!monaco.languages.getLanguages().some(({ id }) => id === 'hog')) {
+                        monaco.languages.register({ id: 'hog', extensions: ['.hog'], mimetypes: ['application/hog'] })
+                        monaco.languages.setLanguageConfiguration('hog', hog.conf)
+                        monaco.languages.setMonarchTokensProvider('hog', hog.language)
+                    }
+                }
+                if (editorProps?.language === 'hogql') {
+                    if (!monaco.languages.getLanguages().some(({ id }) => id === 'hogql')) {
+                        monaco.languages.register({
+                            id: 'hogql',
+                            extensions: ['.sql', '.hogql'],
+                            mimetypes: ['application/hog+ql'],
+                        })
+                        monaco.languages.setLanguageConfiguration('hogql', hogQL.conf)
+                        monaco.languages.setMonarchTokensProvider('hogql', hogQL.language)
+                    }
+                    monacoDisposables.current.push(
+                        monaco.languages.registerCompletionItemProvider(
+                            'hogql',
+                            hogQLAutocompleteProvider(builtCodeEditorLogic)
+                        )
+                    )
+                    monacoDisposables.current.push(
+                        monaco.languages.registerCodeActionProvider(
+                            'hogql',
+                            hogQLMetadataProvider(builtCodeEditorLogic)
+                        )
+                    )
+                }
+                onMount?.(editor, monaco)
+            }}
+        />
+    )
+}

frontend/src/lib/monaco/CodeEditorResizable.tsx

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+import { CodeEditor, CodeEditorProps } from 'lib/monaco/CodeEditor'
+import { useEffect, useRef, useState } from 'react'
+import AutoSizer from 'react-virtualized/dist/es/AutoSizer'
+
+export function CodeEditorResizeable({
+    height: defaultHeight = 200,
+    minHeight = '5rem',
+    maxHeight = '90vh',
+    ...props
+}: Omit<CodeEditorProps, 'height'> & {
+    height?: number
+    minHeight?: string | number
+    maxHeight?: string | number
+}): JSX.Element {
+    const [height, setHeight] = useState(defaultHeight)
+    const [manualHeight, setManualHeight] = useState<number>()
+
+    const ref = useRef<HTMLDivElement | null>(null)
+
+    useEffect(() => {
+        const value = typeof props.value !== 'string' ? JSON.stringify(props.value, null, 2) : props.value
+        const lineCount = (value?.split('\n').length ?? 1) + 1
+        const lineHeight = 18
+        setHeight(lineHeight * lineCount)
+    }, [props.value])
+
+    return (
+        <div
+            ref={ref}
+            className="CodeEditorResizeable relative border rounded"
+            // eslint-disable-next-line react/forbid-dom-props
+            style={{
+                minHeight,
+                maxHeight,
+                height: manualHeight ?? height,
+            }}
+        >
+            <AutoSizer disableWidth>
+                {({ height }) => (
+                    <CodeEditor
+                        {...props}
+                        height={height - 2} // Account for border
+                    />
+                )}
+            </AutoSizer>
+
+            {/* Using a standard resize css means we need overflow-hidden which hides parts of the editor unnecessarily */}
+            <div
+                className="absolute bottom-0 right-0 z-10 resize-y h-5 w-5 cursor-s-resize overflow-hidden"
+                onMouseDown={(e) => {
+                    const startY = e.clientY
+                    const startHeight = ref.current?.clientHeight ?? 0
+                    const onMouseMove = (event: MouseEvent): void => {
+                        setManualHeight(startHeight + event.clientY - startY)
+                    }
+                    const onMouseUp = (): void => {
+                        window.removeEventListener('mousemove', onMouseMove)
+                        window.removeEventListener('mouseup', onMouseUp)
+                    }
+                    window.addEventListener('mousemove', onMouseMove)
+                    window.addEventListener('mouseup', onMouseUp)
+                }}
+            />
+        </div>
+    )
+}