refactor: Change how we handle blocks to make it possible to support more Deepnote ones.

src/notebooks/deepnote/converters/blockConverter.ts

@@ -0,0 +1,10 @@
+import type { NotebookCellData } from 'vscode';
+
+import type { DeepnoteBlock } from '../deepnoteTypes';
+
+export interface BlockConverter {
+    applyChangesToBlock(block: DeepnoteBlock, cell: NotebookCellData): void;
+    canConvert(blockType: string): boolean;
+    convertToCell(block: DeepnoteBlock): NotebookCellData;
+    getSupportedTypes(): string[];
+}

src/notebooks/deepnote/converters/codeBlockConverter.ts

@@ -0,0 +1,24 @@
+import { NotebookCellData, NotebookCellKind } from 'vscode';
+
+import type { BlockConverter } from './blockConverter';
+import type { DeepnoteBlock } from '../deepnoteTypes';
+
+export class CodeBlockConverter implements BlockConverter {
+    applyChangesToBlock(block: DeepnoteBlock, cell: NotebookCellData): void {
+        block.content = cell.value || '';
+    }
+
+    canConvert(blockType: string): boolean {
+        return blockType === 'code';
+    }
+
+    convertToCell(block: DeepnoteBlock): NotebookCellData {
+        const cell = new NotebookCellData(NotebookCellKind.Code, block.content || '', 'python');
+
+        return cell;
+    }
+
+    getSupportedTypes(): string[] {
+        return ['code'];
+    }
+}