Replace generated Enum with already existing

[karlismelderis-mckinsey]

in TS plugin I managed to replace generated enum with already existing:

      mapper: {
        demo_group: factory.createPropertySignature(
          undefined,
          factory.createIdentifier('demo_group'),
          undefined,
          factory.createTypeReferenceNode(
            ts.factory.createIdentifier('DemoGroup'),
          ),
        ),
      },

this allows us to use generated faker data in tests where input expects enum DemoGroup

I'm currently struggling with two issue:

1. how to import this enum in generated kubb type files

Technically it's possible to create import declaration but where to put it?
I figured how to add ts-ignore if this import is not possible but it's not a great solution

const importDeclaration = ts.factory.createImportDeclaration(
    undefined,
    ts.factory.createImportClause(
      false,
      undefined,
      ts.factory.createNamedImports([
        ts.factory.createImportSpecifier(
          false,
          undefined,
          ts.factory.createIdentifier('DemoGroup')
        )
      ])
    ),
    ts.factory.createStringLiteral('./enums'),
    undefined
  );

3. how to target specific type for this override?

type ReceiveOverride {
   toEnum: string
}

type NotReceiveOverride {
   toEnum: string
}

[karlismelderis-mckinsey]

🎉 I figured it

Dumping my solution for future generations 😅

pluginTs({
      output: {
        /**
         * add all Enum imports here
         * eslint will "fix" unused imports for all files
         */
        banner: `import { DemoGroup } from '../constants/demo-group';`,
      },
      mapper: {
        demo_group: factory.createPropertySignature(
          undefined,
          factory.createIdentifier('demo_group'),
          undefined,
          factory.createTypeReferenceNode(
            ts.factory.createIdentifier('DemoGroup'),
          ),
        ),
      },
    })

then add unused-imports/no-unused-imports lint rule

  hooks: {
    done: [
      // run eslint with `--fix` here
    ],
  },

Same had to be done for faker

      mapper: {
        demo_group: 'faker.helpers.enumValue(DemoGroup)',
      },

      output: {
        path: './',
        barrelType: false,
        /**
         * add all Enum imports here
         * eslint will "fix" unused imports for all files
         */
        banner: `import { DemoGroup } from '../constants/demo-group';`,
      },