/
add-imports-to-module.ts
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/
add-imports-to-module.ts
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import { Rule, Tree } from '@angular-devkit/schematics';
import * as ts from 'typescript';
import { toClassName, toFileName, toPropertyName } from '@nrwl/workspace';
import { insert } from '@nrwl/workspace';
import { RequestContext } from './request-context';
import {
addImportToModule,
addProviderToModule
} from '../../../utils/ast-utils';
import { Change, insertImport } from '@nrwl/workspace/src/utils/ast-utils';
export function addImportsToModule(context: RequestContext): Rule {
return (host: Tree) => {
const modulePath = context.options.module;
const sourceText = host.read(modulePath)!.toString('utf-8');
const source = ts.createSourceFile(
modulePath,
sourceText,
ts.ScriptTarget.Latest,
true
);
const addImport = (
symbolName: string,
fileName: string,
isDefault = false
): Change => {
return insertImport(source, modulePath, symbolName, fileName, isDefault);
};
const dir = `./${toFileName(context.options.directory)}`;
const pathPrefix = `${dir}/${toFileName(context.featureName)}`;
const reducerPath = `${pathPrefix}.reducer`;
const effectsPath = `${pathPrefix}.effects`;
const facadePath = `${pathPrefix}.facade`;
const featureName = `${toPropertyName(context.featureName)}`;
const effectsName = `${toClassName(context.featureName)}Effects`;
const facadeName = `${toClassName(context.featureName)}Facade`;
const className = `${toClassName(context.featureName)}`;
const reducerImports = `* as from${className}`;
const storeMetaReducers = `metaReducers: !environment.production ? [] : []`;
const storeForRoot = `StoreModule.forRoot({},
{
${storeMetaReducers},
runtimeChecks: {
strictActionImmutability: true,
strictStateImmutability: true
}
}
)`;
const nxModule = 'NxModule.forRoot()';
const effectsForRoot = `EffectsModule.forRoot([${effectsName}])`;
const effectsForEmptyRoot = `EffectsModule.forRoot([])`;
const storeForFeature = `StoreModule.forFeature(from${className}.${featureName.toUpperCase()}_FEATURE_KEY, from${className}.reducer)`;
const effectsForFeature = `EffectsModule.forFeature([${effectsName}])`;
const devTools = `!environment.production ? StoreDevtoolsModule.instrument() : []`;
const storeRouterModule = 'StoreRouterConnectingModule.forRoot()';
// InsertImport [symbol,source] value pairs
const nxModuleImport = ['NxModule', '@nrwl/angular'];
const storeModule = ['StoreModule', '@ngrx/store'];
const effectsModule = ['EffectsModule', '@ngrx/effects'];
const storeDevTools = ['StoreDevtoolsModule', '@ngrx/store-devtools'];
const environment = ['environment', '../environments/environment'];
const storeRouter = ['StoreRouterConnectingModule', '@ngrx/router-store'];
// this is just a heuristic
const hasRouter = sourceText.indexOf('RouterModule') > -1;
const hasNxModule = sourceText.includes('NxModule.forRoot()');
if (
(context.options.onlyEmptyRoot || context.options.minimal) &&
context.options.root
) {
insert(host, modulePath, [
addImport.apply(this, storeModule),
addImport.apply(this, effectsModule),
addImport.apply(this, storeDevTools),
addImport.apply(this, environment),
...(hasRouter ? [addImport.apply(this, storeRouter)] : []),
...addImportToModule(source, modulePath, storeForRoot),
...addImportToModule(source, modulePath, effectsForEmptyRoot),
...addImportToModule(source, modulePath, devTools),
...(hasRouter
? addImportToModule(source, modulePath, storeRouterModule)
: [])
]);
} else {
let common = [
addImport.apply(this, storeModule),
addImport.apply(this, effectsModule),
addImport(reducerImports, reducerPath, true),
addImport(effectsName, effectsPath)
];
if (context.options.facade) {
common = [
...common,
addImport(facadeName, facadePath),
...addProviderToModule(source, modulePath, `${facadeName}`)
];
}
if (context.options.root) {
insert(host, modulePath, [
...common,
...(!hasNxModule ? [addImport.apply(this, nxModuleImport)] : []),
addImport.apply(this, storeDevTools),
addImport.apply(this, environment),
...(hasRouter ? [addImport.apply(this, storeRouter)] : []),
...(!hasNxModule
? addImportToModule(source, modulePath, nxModule)
: []),
...addImportToModule(source, modulePath, storeForRoot),
...addImportToModule(source, modulePath, effectsForRoot),
...addImportToModule(source, modulePath, devTools),
...(hasRouter
? addImportToModule(source, modulePath, storeRouterModule)
: []),
...addImportToModule(source, modulePath, storeForFeature)
]);
} else {
insert(host, modulePath, [
...common,
...addImportToModule(source, modulePath, storeForFeature),
...addImportToModule(source, modulePath, effectsForFeature)
]);
}
}
return host;
};
}