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App.tsx
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import { DbSchema, testData } from '@neo4j-cypher/language-support';
import { CypherEditor } from '@neo4j-cypher/react-codemirror';
import { useMemo, useState } from 'react';
import { Tree } from 'react-d3-tree';
import { TokenTable } from './TokenTable';
import { getDebugTree } from './treeUtil';
const demos = {
allTokenTypes: `MATCH (variable :Label)-[:REL_TYPE]->()
WHERE variable.property = "String"
OR namespaced.function() = false
// comment
OR $parameter > 2
RETURN variable;`,
basic: `MATCH (n:Person)
WHERE n.name = "Steve"
RETURN n
LIMIT 12;`,
subqueries: `UNWIND range(1,100) as _
CALL {
MATCH (source:object) WHERE source.id= $id1
MATCH (target:object) WHERE target.id= $id2
MATCH path = (source)-[*1..10]->(target)
WITH path, reduce(weight = 0, r IN relationships(path) | weight + r.weight) as Weight
ORDER BY Weight LIMIT 3
RETURN length(path) as l, Weight
}
RETURN count(*)`,
createDatabase: `CREATE DATABASE testdb OPTIONS {existingData: 'use', seedURI:'s3://bucketpath', seedConfig: 'region=eu-west-1', seedCredentials: 'foo;bar'};`,
} as const;
type DemoName = keyof typeof demos;
export function App() {
const [selectedDemoName, setSelectedDemoName] = useState<DemoName>('basic');
const [value, setValue] = useState<string>(demos[selectedDemoName]);
const [showCodemirrorParse, setShowCodemirrorParse] = useState(false);
const [showAntlrParse, setShowAntlrParse] = useState(false);
const [showConfigPanel, setShowConfigPanel] = useState(false);
const [commandRanCount, setCommandRanCount] = useState(0);
const [darkMode, setDarkMode] = useState(false);
const [schema, setSchema] = useState<DbSchema>(testData.mockSchema);
const [schemaText, setSchemaText] = useState<string>(
JSON.stringify(testData.mockSchema, undefined, 2),
);
const [schemaError, setSchemaError] = useState<string | null>(null);
const treeData = useMemo(() => {
return getDebugTree(value);
}, [value]);
return (
<div className={darkMode ? 'dark' : ''}>
<div className="bg-blue-300 dark:bg-gray-700 min-h-screen dark:text-white">
<div className=" flex justify-center pt-5 gap-10 ">
<div className="auto min-w-[500px] w-3/6 flex flex-col gap-5 bg-white dark:bg-gray-600 p-10 rounded-lg shadow-lg">
<div className="flex justify-between items-center">
<h1 className="text-4xl ">Cypher Codemirror Demo</h1>
<button
className="w-10 h-10"
onClick={() => setShowConfigPanel((s) => !s)}
>
<svg
xmlns="http://www.w3.org/2000/svg"
fill="none"
viewBox="0 0 24 24"
strokeWidth="1.5"
stroke="currentColor"
aria-hidden="true"
className="w-full h-full text-gray-500 self-center"
>
<path
strokeLinecap="round"
strokeLinejoin="round"
d="M10.343 3.94c.09-.542.56-.94 1.11-.94h1.093c.55 0 1.02.398 1.11.94l.149.894c.07.424.384.764.78.93.398.164.855.142 1.205-.108l.737-.527a1.125 1.125 0 011.45.12l.773.774c.39.389.44 1.002.12 1.45l-.527.737c-.25.35-.272.806-.107 1.204.165.397.505.71.93.78l.893.15c.543.09.94.56.94 1.109v1.094c0 .55-.397 1.02-.94 1.11l-.893.149c-.425.07-.765.383-.93.78-.165.398-.143.854.107 1.204l.527.738c.32.447.269 1.06-.12 1.45l-.774.773a1.125 1.125 0 01-1.449.12l-.738-.527c-.35-.25-.806-.272-1.203-.107-.397.165-.71.505-.781.929l-.149.894c-.09.542-.56.94-1.11.94h-1.094c-.55 0-1.019-.398-1.11-.94l-.148-.894c-.071-.424-.384-.764-.781-.93-.398-.164-.854-.142-1.204.108l-.738.527c-.447.32-1.06.269-1.45-.12l-.773-.774a1.125 1.125 0 01-.12-1.45l.527-.737c.25-.35.273-.806.108-1.204-.165-.397-.505-.71-.93-.78l-.894-.15c-.542-.09-.94-.56-.94-1.109v-1.094c0-.55.398-1.02.94-1.11l.894-.149c.424-.07.765-.383.93-.78.165-.398.143-.854-.107-1.204l-.527-.738a1.125 1.125 0 01.12-1.45l.773-.773a1.125 1.125 0 011.45-.12l.737.527c.35.25.807.272 1.204.107.397-.165.71-.505.78-.929l.15-.894z"
></path>
<path
strokeLinecap="round"
strokeLinejoin="round"
d="M15 12a3 3 0 11-6 0 3 3 0 016 0z"
></path>
</svg>
</button>
</div>
<div className="flex gap-1">
{Object.keys(demos).map((demoName: DemoName) => (
<button
key={demoName}
className={`hover:bg-blue-600 text-white font-bold py-1 px-3 rounded
${selectedDemoName === demoName ? 'bg-blue-600' : 'bg-blue-400'
}`}
onClick={() => {
setSelectedDemoName(demoName);
setValue(demos[demoName]);
}}
>
{demoName}
</button>
))}
</div>
<CypherEditor
className="border-2 border-gray-100 dark:border-gray-400 text-sm"
value={value}
onChange={setValue}
prompt="neo4j$"
onExecute={() => {
setCommandRanCount((c) => c + 1);
setValue('');
}}
theme={darkMode ? 'dark' : 'light'}
history={Object.values(demos)}
schema={schema}
featureFlags={{ signatureInfoOnAutoCompletions: true }}
ariaLabel="Cypher Editor"
resizeable={true}
/>
{commandRanCount > 0 && (
<span className="text-gray-400">
"commands" ran so far: {commandRanCount}
</span>
)}
{!!showCodemirrorParse && <TokenTable document={value} />}
</div>
{showConfigPanel && (
<div className="auto min-w-[500px] w-2/6 flex flex-col gap-5 bg-white dark:bg-gray-600 p-10 rounded-lg shadow-lg">
<h1 className="text-4xl">Options </h1>
<label className="flex gap-1">
<input
type="checkbox"
checked={showCodemirrorParse}
onChange={() => setShowCodemirrorParse((s) => !s)}
/>
Show codemirror parsed tokens
</label>
<label className="flex gap-1">
<input
type="checkbox"
checked={darkMode}
onChange={() => setDarkMode((l) => !l)}
/>
Dark Mode
</label>
<label className="flex gap-1">
<input
type="checkbox"
checked={showAntlrParse}
onChange={() => setShowAntlrParse((s) => !s)}
/>
Show antlr parse tree
</label>
{schemaError && <div className="text-red-500">{schemaError}</div>}
<textarea
value={schemaText}
className="min-h-[200px] dark:text-black"
onChange={(v) => {
const value = v.target.value;
setSchemaText(value);
try {
const schema = JSON.parse(value) as DbSchema;
setSchema(schema);
setSchemaError(null);
} catch (e) {
setSchemaError(String(e));
}
}}
/>
</div>
)}
</div>
{showAntlrParse && (
<div id="treeWrapper" className="w-full h-screen">
<Tree
data={treeData}
orientation="vertical"
translate={{ x: document.body.clientWidth / 2, y: 50 }}
/>
</div>
)}
</div>
</div>
);
}