/**

* @license

* Copyright Google LLC All Rights Reserved.

*

* Use of this source code is governed by an MIT-style license that can be

* found in the LICENSE file at https://angular.dev/license

*/

import * as o from '../../output/output_ast';

import {Identifiers as R3} from '../r3_identifiers';

import {createPipeType, R3PipeMetadata} from '../r3_pipe_compiler';

import {R3CompiledExpression} from '../util';

import {DefinitionMap} from '../view/util';

import {R3DeclarePipeMetadata} from './api';

/**

* Every time we make a breaking change to the declaration interface or partial-linker behavior, we

* must update this constant to prevent old partial-linkers from incorrectly processing the

* declaration.

*

* Do not include any prerelease in these versions as they are ignored.

*/

const MINIMUM_PARTIAL_LINKER_VERSION = '14.0.0';

/**

* Compile a Pipe declaration defined by the `R3PipeMetadata`.

*/

export function compileDeclarePipeFromMetadata(meta: R3PipeMetadata): R3CompiledExpression {

const definitionMap = createPipeDefinitionMap(meta);

const expression = o.importExpr(R3.declarePipe).callFn([definitionMap.toLiteralMap()]);

const type = createPipeType(meta);

return {expression, type, statements: []};

}

/**

* Gathers the declaration fields for a Pipe into a `DefinitionMap`.

*/

export function createPipeDefinitionMap(

meta: R3PipeMetadata,

): DefinitionMap<R3DeclarePipeMetadata> {

const definitionMap = new DefinitionMap<R3DeclarePipeMetadata>();

definitionMap.set('minVersion', o.literal(MINIMUM_PARTIAL_LINKER_VERSION));

definitionMap.set('version', o.literal('0.0.0-PLACEHOLDER'));

definitionMap.set('ngImport', o.importExpr(R3.core));

// e.g. `type: MyPipe`

definitionMap.set('type', meta.type.value);

if (meta.isStandalone) {

definitionMap.set('isStandalone', o.literal(meta.isStandalone));

}

// e.g. `name: "myPipe"`

definitionMap.set('name', o.literal(meta.pipeName));

if (meta.pure === false) {

// e.g. `pure: false`

definitionMap.set('pure', o.literal(meta.pure));

}

return definitionMap;

}