/**
 * @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.io/license
 */
import { KeyValueDiffers, Pipe } from '@angular/core';
import * as i0 from "@angular/core";
function makeKeyValuePair(key, value) {
    return { key: key, value: value };
}
/**
 * @ngModule CommonModule
 * @description
 *
 * Transforms Object or Map into an array of key value pairs.
 *
 * The output array will be ordered by keys.
 * By default the comparator will be by Unicode point value.
 * You can optionally pass a compareFn if your keys are complex types.
 *
 * @usageNotes
 * ### Examples
 *
 * This examples show how an Object or a Map can be iterated by ngFor with the use of this
 * keyvalue pipe.
 *
 * {@example common/pipes/ts/keyvalue_pipe.ts region='KeyValuePipe'}
 *
 * @publicApi
 */
export class KeyValuePipe {
    constructor(differs) {
        this.differs = differs;
        this.keyValues = [];
        this.compareFn = defaultComparator;
    }
    transform(input, compareFn = defaultComparator) {
        if (!input || (!(input instanceof Map) && typeof input !== 'object')) {
            return null;
        }
        if (!this.differ) {
            // make a differ for whatever type we've been passed in
            this.differ = this.differs.find(input).create();
        }
        const differChanges = this.differ.diff(input);
        const compareFnChanged = compareFn !== this.compareFn;
        if (differChanges) {
            this.keyValues = [];
            differChanges.forEachItem((r) => {
                this.keyValues.push(makeKeyValuePair(r.key, r.currentValue));
            });
        }
        if (differChanges || compareFnChanged) {
            this.keyValues.sort(compareFn);
            this.compareFn = compareFn;
        }
        return this.keyValues;
    }
}
KeyValuePipe.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.2.8", ngImport: i0, type: KeyValuePipe, deps: [{ token: i0.KeyValueDiffers }], target: i0.ɵɵFactoryTarget.Pipe });
KeyValuePipe.ɵpipe = i0.ɵɵngDeclarePipe({ minVersion: "14.0.0", version: "14.2.8", ngImport: i0, type: KeyValuePipe, isStandalone: true, name: "keyvalue", pure: false });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.2.8", ngImport: i0, type: KeyValuePipe, decorators: [{
            type: Pipe,
            args: [{
                    name: 'keyvalue',
                    pure: false,
                    standalone: true,
                }]
        }], ctorParameters: function () { return [{ type: i0.KeyValueDiffers }]; } });
export function defaultComparator(keyValueA, keyValueB) {
    const a = keyValueA.key;
    const b = keyValueB.key;
    // if same exit with 0;
    if (a === b)
        return 0;
    // make sure that undefined are at the end of the sort.
    if (a === undefined)
        return 1;
    if (b === undefined)
        return -1;
    // make sure that nulls are at the end of the sort.
    if (a === null)
        return 1;
    if (b === null)
        return -1;
    if (typeof a == 'string' && typeof b == 'string') {
        return a < b ? -1 : 1;
    }
    if (typeof a == 'number' && typeof b == 'number') {
        return a - b;
    }
    if (typeof a == 'boolean' && typeof b == 'boolean') {
        return a < b ? -1 : 1;
    }
    // `a` and `b` are of different types. Compare their string values.
    const aString = String(a);
    const bString = String(b);
    return aString == bString ? 0 : aString < bString ? -1 : 1;
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"keyvalue_pipe.js","sourceRoot":"","sources":["../../../../../../../packages/common/src/pipes/keyvalue_pipe.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,EAAwD,eAAe,EAAE,IAAI,EAAgB,MAAM,eAAe,CAAC;;AAE1H,SAAS,gBAAgB,CAAO,GAAM,EAAE,KAAQ;IAC9C,OAAO,EAAC,GAAG,EAAE,GAAG,EAAE,KAAK,EAAE,KAAK,EAAC,CAAC;AAClC,CAAC;AAaD;;;;;;;;;;;;;;;;;;;GAmBG;AAMH,MAAM,OAAO,YAAY;IACvB,YAA6B,OAAwB;QAAxB,YAAO,GAAP,OAAO,CAAiB;QAG7C,cAAS,GAA8B,EAAE,CAAC;QAC1C,cAAS,GAA6D,iBAAiB,CAAC;IAJxC,CAAC;IAiCzD,SAAS,CACL,KAA4E,EAC5E,YAA8D,iBAAiB;QAEjF,IAAI,CAAC,KAAK,IAAI,CAAC,CAAC,CAAC,KAAK,YAAY,GAAG,CAAC,IAAI,OAAO,KAAK,KAAK,QAAQ,CAAC,EAAE;YACpE,OAAO,IAAI,CAAC;SACb;QAED,IAAI,CAAC,IAAI,CAAC,MAAM,EAAE;YAChB,uDAAuD;YACvD,IAAI,CAAC,MAAM,GAAG,IAAI,CAAC,OAAO,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC,MAAM,EAAE,CAAC;SACjD;QAED,MAAM,aAAa,GAA+B,IAAI,CAAC,MAAM,CAAC,IAAI,CAAC,KAAY,CAAC,CAAC;QACjF,MAAM,gBAAgB,GAAG,SAAS,KAAK,IAAI,CAAC,SAAS,CAAC;QAEtD,IAAI,aAAa,EAAE;YACjB,IAAI,CAAC,SAAS,GAAG,EAAE,CAAC;YACpB,aAAa,CAAC,WAAW,CAAC,CAAC,CAA6B,EAAE,EAAE;gBAC1D,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,gBAAgB,CAAC,CAAC,CAAC,GAAG,EAAE,CAAC,CAAC,YAAa,CAAC,CAAC,CAAC;YAChE,CAAC,CAAC,CAAC;SACJ;QACD,IAAI,aAAa,IAAI,gBAAgB,EAAE;YACrC,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC;YAC/B,IAAI,CAAC,SAAS,GAAG,SAAS,CAAC;SAC5B;QACD,OAAO,IAAI,CAAC,SAAS,CAAC;IACxB,CAAC;;oHA7DU,YAAY;kHAAZ,YAAY;sGAAZ,YAAY;kBALxB,IAAI;mBAAC;oBACJ,IAAI,EAAE,UAAU;oBAChB,IAAI,EAAE,KAAK;oBACX,UAAU,EAAE,IAAI;iBACjB;;AAiED,MAAM,UAAU,iBAAiB,CAC7B,SAAyB,EAAE,SAAyB;IACtD,MAAM,CAAC,GAAG,SAAS,CAAC,GAAG,CAAC;IACxB,MAAM,CAAC,GAAG,SAAS,CAAC,GAAG,CAAC;IACxB,uBAAuB;IACvB,IAAI,CAAC,KAAK,CAAC;QAAE,OAAO,CAAC,CAAC;IACtB,uDAAuD;IACvD,IAAI,CAAC,KAAK,SAAS;QAAE,OAAO,CAAC,CAAC;IAC9B,IAAI,CAAC,KAAK,SAAS;QAAE,OAAO,CAAC,CAAC,CAAC;IAC/B,mDAAmD;IACnD,IAAI,CAAC,KAAK,IAAI;QAAE,OAAO,CAAC,CAAC;IACzB,IAAI,CAAC,KAAK,IAAI;QAAE,OAAO,CAAC,CAAC,CAAC;IAC1B,IAAI,OAAO,CAAC,IAAI,QAAQ,IAAI,OAAO,CAAC,IAAI,QAAQ,EAAE;QAChD,OAAO,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;KACvB;IACD,IAAI,OAAO,CAAC,IAAI,QAAQ,IAAI,OAAO,CAAC,IAAI,QAAQ,EAAE;QAChD,OAAO,CAAC,GAAG,CAAC,CAAC;KACd;IACD,IAAI,OAAO,CAAC,IAAI,SAAS,IAAI,OAAO,CAAC,IAAI,SAAS,EAAE;QAClD,OAAO,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;KACvB;IACD,mEAAmE;IACnE,MAAM,OAAO,GAAG,MAAM,CAAC,CAAC,CAAC,CAAC;IAC1B,MAAM,OAAO,GAAG,MAAM,CAAC,CAAC,CAAC,CAAC;IAC1B,OAAO,OAAO,IAAI,OAAO,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,OAAO,GAAG,OAAO,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;AAC7D,CAAC","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {KeyValueChangeRecord, KeyValueChanges, KeyValueDiffer, KeyValueDiffers, Pipe, PipeTransform} from '@angular/core';\n\nfunction makeKeyValuePair<K, V>(key: K, value: V): KeyValue<K, V> {\n  return {key: key, value: value};\n}\n\n/**\n * A key value pair.\n * Usually used to represent the key value pairs from a Map or Object.\n *\n * @publicApi\n */\nexport interface KeyValue<K, V> {\n  key: K;\n  value: V;\n}\n\n/**\n * @ngModule CommonModule\n * @description\n *\n * Transforms Object or Map into an array of key value pairs.\n *\n * The output array will be ordered by keys.\n * By default the comparator will be by Unicode point value.\n * You can optionally pass a compareFn if your keys are complex types.\n *\n * @usageNotes\n * ### Examples\n *\n * This examples show how an Object or a Map can be iterated by ngFor with the use of this\n * keyvalue pipe.\n *\n * {@example common/pipes/ts/keyvalue_pipe.ts region='KeyValuePipe'}\n *\n * @publicApi\n */\n@Pipe({\n  name: 'keyvalue',\n  pure: false,\n  standalone: true,\n})\nexport class KeyValuePipe implements PipeTransform {\n  constructor(private readonly differs: KeyValueDiffers) {}\n\n  private differ!: KeyValueDiffer<any, any>;\n  private keyValues: Array<KeyValue<any, any>> = [];\n  private compareFn: (a: KeyValue<any, any>, b: KeyValue<any, any>) => number = defaultComparator;\n\n  /*\n   * NOTE: when the `input` value is a simple Record<K, V> object, the keys are extracted with\n   * Object.keys(). This means that even if the `input` type is Record<number, V> the keys are\n   * compared/returned as `string`s.\n   */\n  transform<K, V>(\n      input: ReadonlyMap<K, V>,\n      compareFn?: (a: KeyValue<K, V>, b: KeyValue<K, V>) => number): Array<KeyValue<K, V>>;\n  transform<K extends number, V>(\n      input: Record<K, V>, compareFn?: (a: KeyValue<string, V>, b: KeyValue<string, V>) => number):\n      Array<KeyValue<string, V>>;\n  transform<K extends string, V>(\n      input: Record<K, V>|ReadonlyMap<K, V>,\n      compareFn?: (a: KeyValue<K, V>, b: KeyValue<K, V>) => number): Array<KeyValue<K, V>>;\n  transform(\n      input: null|undefined,\n      compareFn?: (a: KeyValue<unknown, unknown>, b: KeyValue<unknown, unknown>) => number): null;\n  transform<K, V>(\n      input: ReadonlyMap<K, V>|null|undefined,\n      compareFn?: (a: KeyValue<K, V>, b: KeyValue<K, V>) => number): Array<KeyValue<K, V>>|null;\n  transform<K extends number, V>(\n      input: Record<K, V>|null|undefined,\n      compareFn?: (a: KeyValue<string, V>, b: KeyValue<string, V>) => number):\n      Array<KeyValue<string, V>>|null;\n  transform<K extends string, V>(\n      input: Record<K, V>|ReadonlyMap<K, V>|null|undefined,\n      compareFn?: (a: KeyValue<K, V>, b: KeyValue<K, V>) => number): Array<KeyValue<K, V>>|null;\n  transform<K, V>(\n      input: undefined|null|{[key: string]: V, [key: number]: V}|ReadonlyMap<K, V>,\n      compareFn: (a: KeyValue<K, V>, b: KeyValue<K, V>) => number = defaultComparator):\n      Array<KeyValue<K, V>>|null {\n    if (!input || (!(input instanceof Map) && typeof input !== 'object')) {\n      return null;\n    }\n\n    if (!this.differ) {\n      // make a differ for whatever type we've been passed in\n      this.differ = this.differs.find(input).create();\n    }\n\n    const differChanges: KeyValueChanges<K, V>|null = this.differ.diff(input as any);\n    const compareFnChanged = compareFn !== this.compareFn;\n\n    if (differChanges) {\n      this.keyValues = [];\n      differChanges.forEachItem((r: KeyValueChangeRecord<K, V>) => {\n        this.keyValues.push(makeKeyValuePair(r.key, r.currentValue!));\n      });\n    }\n    if (differChanges || compareFnChanged) {\n      this.keyValues.sort(compareFn);\n      this.compareFn = compareFn;\n    }\n    return this.keyValues;\n  }\n}\n\nexport function defaultComparator<K, V>(\n    keyValueA: KeyValue<K, V>, keyValueB: KeyValue<K, V>): number {\n  const a = keyValueA.key;\n  const b = keyValueB.key;\n  // if same exit with 0;\n  if (a === b) return 0;\n  // make sure that undefined are at the end of the sort.\n  if (a === undefined) return 1;\n  if (b === undefined) return -1;\n  // make sure that nulls are at the end of the sort.\n  if (a === null) return 1;\n  if (b === null) return -1;\n  if (typeof a == 'string' && typeof b == 'string') {\n    return a < b ? -1 : 1;\n  }\n  if (typeof a == 'number' && typeof b == 'number') {\n    return a - b;\n  }\n  if (typeof a == 'boolean' && typeof b == 'boolean') {\n    return a < b ? -1 : 1;\n  }\n  // `a` and `b` are of different types. Compare their string values.\n  const aString = String(a);\n  const bString = String(b);\n  return aString == bString ? 0 : aString < bString ? -1 : 1;\n}\n"]}