perf: remove metadata definition class (#163)

projects/ngx-meta/src/core/public-api.ts

@@ -6,21 +6,19 @@ export {
   provideCore as provideNgxMetaCore,
   withDefaults as withNgxMetaDefaults,
 } from './src/provide-core'
-export * from './src/base-scoped-metadata'
 export * from './src/composable-meta-property'
 export * from './src/global-metadata'
-export * from './src/global-metadata-definition'
 export * from './src/global-metadata-image'
 export * from './src/global-metadata-key'
+export * from './src/make-global-metadata'
+export * from './src/make-metadata'
 export * from './src/meta-content'
 export * from './src/meta-property'
 export * from './src/meta.service'
 export * from './src/metadata'
-export * from './src/metadata-definition'
+export * from './src/metadata-provider'
 export * from './src/metadata-setter'
 export * from './src/metadata-values'
 export * from './src/metadata.service'
-export * from './src/provide-metadata'
 export * from './src/provide-metadata-factory'
-export * from './src/scoped-metadata-definition'
 export * from './src/string-key-of'

projects/ngx-meta/src/core/src/__tests__/make-metadata-provider.ts

@@ -0,0 +1,16 @@
+import { MetadataProvider } from '../metadata-provider'
+import { makeGlobalMetadata } from '../make-global-metadata'
+
+export function makeMetadataProvider<T, Id extends string>(
+  opts: {
+    id?: Id
+    spyName?: string
+  } = {},
+) {
+  const id = opts.id ?? 'dummy'
+  const metadata: MetadataProvider<T> = {
+    metadata: makeGlobalMetadata(id),
+    set: jasmine.createSpy(opts.spyName ?? id),
+  }
+  return metadata
+}

projects/ngx-meta/src/core/src/make-global-metadata.ts

@@ -0,0 +1,6 @@
+import { Metadata } from './metadata'
+import { makeMetadata } from './make-metadata'
+
+export const makeGlobalMetadata = <Global extends string = string>(
+  global: Global,
+): Metadata => makeMetadata([global])

projects/ngx-meta/src/core/src/make-metadata.ts

@@ -0,0 +1,10 @@
+import { Metadata } from './metadata'
+
+export const makeMetadata = <Global extends string = string>(
+  jsonPath: ReadonlyArray<string>,
+  global?: Global,
+): Metadata => ({
+  id: jsonPath.join('.'),
+  jsonPath,
+  global,
+})

projects/ngx-meta/src/core/src/metadata-json-resolver.spec.ts

@@ -1,9 +1,9 @@
 import { TestBed } from '@angular/core/testing'
 import { MetadataJsonResolver } from './metadata-json-resolver'
 import { MetadataValues } from './metadata-values'
-import { MetadataDefinition } from './metadata-definition'
-import { makeScopedMetadataDefinition } from './__tests__/make-scoped-metadata-definition'
-import { makeGlobalMetadataDefinition } from './__tests__/make-global-metadata-definition'
+import { Metadata } from './metadata'
+import { makeMetadata } from './make-metadata'
+import { makeGlobalMetadata } from './make-global-metadata'
 
 describe('MetadataJsonResolver', () => {
   let sut: MetadataJsonResolver
@@ -13,41 +13,34 @@ describe('MetadataJsonResolver', () => {
   })
 
   describe('get', () => {
-    const scope = 'scope'
+    const key = 'key'
+    const subKey = 'subKey'
     const global = 'global'
-    const name = 'name'
     const value = 'value'
 
     function testGlobalMayBeRetrieved(
-      metadataDefinition: MetadataDefinition,
+      metadata: Metadata,
       values: MetadataValues,
     ) {
       describe('when global is not defined', () => {
         it('should return undefined', () => {
-          expect(sut.get(metadataDefinition, values)).toBeUndefined()
+          expect(sut.get(metadata, values)).toBeUndefined()
         })
       })
 
       describe('when global is defined', () => {
-        const metadataDefinitionWithGlobal = makeScopedMetadataDefinition({
-          ...metadataDefinition,
-          global,
-        })
+        const metadataWithGlobal = makeMetadata(metadata.jsonPath, global)
 
         describe('but global value does not exist', () => {
           it('should return undefined', () => {
-            expect(
-              sut.get(metadataDefinitionWithGlobal, values),
-            ).toBeUndefined()
+            expect(sut.get(metadataWithGlobal, values)).toBeUndefined()
           })
         })
         describe('and global value exists', () => {
           const valuesWithGlobal = { [global]: value, ...values }
 
           it('should return global value', () => {
-            expect(
-              sut.get(metadataDefinitionWithGlobal, valuesWithGlobal),
-            ).toEqual(value)
+            expect(sut.get(metadataWithGlobal, valuesWithGlobal)).toEqual(value)
           })
         })
       })
@@ -58,123 +51,73 @@ describe('MetadataJsonResolver', () => {
         const values = undefined
 
         it('should return undefined', () => {
-          expect(
-            sut.get(makeGlobalMetadataDefinition(), values),
-          ).toBeUndefined()
+          expect(sut.get(makeGlobalMetadata('dummy'), values)).toBeUndefined()
         })
       })
-      describe('like when scope does not exist', () => {
-        const metadataDefinition = makeScopedMetadataDefinition({
-          scope,
-        })
+      describe('like when key does not exist', () => {
+        const metadata = makeMetadata([key, subKey])
         const values = {}
 
-        testGlobalMayBeRetrieved(metadataDefinition, values)
+        testGlobalMayBeRetrieved(metadata, values)
       })
 
-      describe('like when scope is defined but property name does not exist', () => {
-        const metadataDefinition = makeScopedMetadataDefinition({
-          scope,
-          name,
-        })
+      describe('like when key is defined but sub key does not exist', () => {
+        const metadata = makeMetadata([key, subKey])
         const values = {
-          [scope]: {},
+          [key]: {},
         }
-        testGlobalMayBeRetrieved(metadataDefinition, values)
-      })
-
-      describe('like when scope is null', () => {
-        const metadataDefinition = makeScopedMetadataDefinition({
-          scope,
-        })
-
-        const values = { [scope]: null }
-
-        it('should return null', () => {
-          expect(sut.get(metadataDefinition, values)).toBeNull()
-        })
+        testGlobalMayBeRetrieved(metadata, values)
       })
 
-      describe('like when scope value is null and there is sub scope', () => {
-        const metadataDefinition = makeScopedMetadataDefinition({
-          scope: `${scope}.subScope`,
-          name,
-        })
-
-        const values = { [scope]: null }
+      describe('like when key is null', () => {
+        const metadata = makeMetadata([key, subKey])
+        const values = { [key]: null }
 
         it('should return null', () => {
-          expect(sut.get(metadataDefinition, values)).toBeNull()
+          expect(sut.get(metadata, values)).toBeNull()
         })
       })
 
-      describe('like when scope is not an object', () => {
-        const metadataDefinition = makeScopedMetadataDefinition({ scope })
+      describe('like when value in key is not an object', () => {
+        const metadata = makeMetadata([key, subKey])
         const values = {
-          [scope]: 42,
+          [key]: 42,
         }
-        testGlobalMayBeRetrieved(metadataDefinition, values)
+        testGlobalMayBeRetrieved(metadata, values)
       })
     })
 
     describe('when specific value is defined', () => {
-      describe('like when scope does not contain sub scopes', () => {
-        const metadataDefinition = makeScopedMetadataDefinition({
-          scope,
-          name,
-        })
+      describe('like when there is a key and sub key', () => {
+        const metadata = makeMetadata([key, subKey])
 
         const values = {
-          [scope]: {
-            [name]: value,
+          [key]: {
+            [subKey]: value,
           },
         }
 
-        it('should return value using scope and name as keys', () => {
-          expect(sut.get(metadataDefinition, values)).toEqual(value)
+        it('should return value using key and sub key as path', () => {
+          expect(sut.get(metadata, values)).toEqual(value)
         })
       })
 
-      describe('like when scope contains sub scopes', () => {
-        const subScope = 'subScope'
-        const metadataDefinition = makeScopedMetadataDefinition({
-          scope: `${scope}.${subScope}`,
-          name,
-        })
-
-        const values = {
-          [scope]: {
-            [subScope]: {
-              [name]: value,
-            },
-          },
-        }
-
-        it('should return value using sub scope, scope and name as keys', () => {
-          expect(sut.get(metadataDefinition, values)).toEqual(value)
-        })
-      })
       describe('and it is and object, and a global object exists too', () => {
         const valueObject = { value: 'value', prop: 'value' }
         const globalValueObject = {
           globalValue: 'globalValue',
           prop: 'globalValue',
         }
-        const metadataDefinition = makeScopedMetadataDefinition({
-          scope,
-          name,
-          global,
-        })
-
+        const metadata = makeMetadata([key, subKey], global)
         const values = {
           [global]: globalValueObject,
-          [scope]: {
-            [name]: valueObject,
+          [key]: {
+            [subKey]: valueObject,
           },
         }
 
         it('should merge both objects, with specific value taking priority', () => {
-          expect(sut.get(metadataDefinition, values)).toEqual({
+          expect(sut.get(metadata, values)).toEqual({
             ...globalValueObject,
             ...valueObject,
           })

projects/ngx-meta/src/core/src/metadata-json-resolver.ts

@@ -1,15 +1,12 @@
-import { MetadataDefinition } from './metadata-definition'
+import { Metadata } from './metadata'
 import { MetadataValues } from './metadata-values'
 import { MaybeUndefined } from './maybe-undefined'
 import { isObject } from './is-object'
 import { Injectable } from '@angular/core'
 
 @Injectable({ providedIn: 'root' })
 export class MetadataJsonResolver {
-  get<T>(
-    definition: MetadataDefinition,
-    values?: MetadataValues,
-  ): T | undefined {
+  get<T>(definition: Metadata, values?: MetadataValues): T | undefined {
     if (values === undefined) {
       return
     }