Progress on select-options

src/lib/promptsmith/select-options.ts

@@ -6,8 +6,13 @@ import {
   type PainterTask,
   task as TASK,
 } from '../painter/lifecycle'
-import { type AnsiBufferKey } from '../util/ansi'
-import { DoEither, type Either, right } from '../util/basic/either'
+import {
+  type AnsiBufferKey,
+  ansiText,
+  emptyBytes,
+  writeAnsiU,
+} from '../util/ansi'
+import { DoEither, type Either, left, right } from '../util/basic/either'
 import { some } from '../util/basic/option'
 import type { Tag } from '../util/basic/utility'
 
@@ -16,9 +21,10 @@ interface SelectOptions {
   keydown: Array<Key>
   exit: Array<Key>
   accept: Array<Key>
-  selector: string
+  selector: {selected: string, default: string}
+  selected: number
   options: Array<string>
-  header: {text: string, format: Array<AnsiBufferKey | Uint8Array>}
+  header?: {text: string, format: Array<AnsiBufferKey | Uint8Array>}
   format: {
     text: {
       default: Array<AnsiBufferKey | Uint8Array>,
@@ -43,22 +49,36 @@ const EVENT: Record<string, Event | ((...args: any[]) => Event)> = {
 
 type RenderText =
   (x: SelectOptions & Tag<'PainterState'>) => Promise<Either<number, Error>>
-// const renderText: RenderText = x =>
-//
-// const selectOptions: PainterEffect<SelectOptions> = x =>
-//   DoEither(right(x)).start()
-//     .bind('')
-
-const test = async () => {
-  const myPromise = new Promise((resolve, reject) => {
-    setTimeout(() => {
-      resolve('First')
-    }, 300)
-  })
-
-  console.log('Second')
-  console.log(await myPromise)
-  return some(await myPromise + 'Third')
+const renderText: RenderText = async (x) => {
+  try {
+    return right(
+      await writeAnsiU([
+        ...(!x.header ? [emptyBytes]
+          : [...x.header.format, ansiText(x.header.text)]),
+        ...x.options.flatMap(i =>
+          (x.options[x.selected] === i)
+            ? [
+              ...x.format.selector.defaultSelected,
+              ansiText(x.selector.selected),
+              'RESET' as AnsiBufferKey,
+              ...x.format.text.defaultSelected,
+              ansiText(i),
+              'RESET' as AnsiBufferKey,
+            ] : [
+              ...x.format.selector.default,
+              ansiText(x.selector.default),
+              'RESET' as AnsiBufferKey,
+              ...x.format.text.default,
+              ansiText(i),
+              'RESET' as AnsiBufferKey,
+            ]
+        ),
+      ]),
+    )
+  } catch (e) {
+    return left(e as Error)
+  }
 }
 
-console.log(await test())
+const selectOptions: PainterEffect<SelectOptions> = x => {
+}

src/lib/util/ansi.ts

@@ -1,5 +1,3 @@
-import { nanoseconds } from 'bun'
-
 const encoder = new TextEncoder()
 const emptyBytes = encoder.encode('')
 type Writer = (x: Uint8Array | Array<Uint8Array>) => Promise<number>
@@ -142,6 +140,8 @@ export {
   ANSI_DYNAMIC,
   type AnsiBufferKey,
   ansiText,
+  emptyBytes,
   writeAnsi,
   writeAnsiU,
+  writer,
 }