feat: add expo config plugin

.gitignore

@@ -82,4 +82,7 @@ lib/
 !**/.yarn/versions
 
 # Docs
-docs/docs/api/*
+docs/docs/api/*
+
+# Keep expo plugin build code
+!plugin/build

.npmignore

@@ -20,3 +20,6 @@ docs/
 .gitattributes
 .yarn/cache
 package/
+plugin/src
+plugin/jest.config.js
+plugin/tsconfig.json

app.plugin.js

@@ -0,0 +1 @@
+module.exports = require('./plugin/build/withIAP');

docs/docs/faq.md

@@ -68,8 +68,44 @@
 
 ### How do I use `react-native-iap` in Expo?
 
-- You should detach from `expo` and get `expokit` out of it.
-- Releated issue in [#174](https://github.com/dooboolab/react-native-iap/issues/174).
+> This package cannot be used in the "Expo Go" app because [it requires custom native code](https://docs.expo.io/workflow/customizing/).
+
+After installing this npm package, add the [config plugin](https://docs.expo.io/guides/config-plugins/) to the [`plugins`](https://docs.expo.io/versions/latest/config/app/#plugins) array of your `app.json` or `app.config.js`:
+
+```json
+{
+  "expo": {
+    "plugins": ["react-native-iap"]
+  }
+}
+```
+
+Next, rebuild your app as described in the ["Adding custom native code"](https://docs.expo.io/workflow/customizing/) guide.
+
+## API
+
+The plugin provides props for extra customization. Every time you change the props or plugins, you'll need to rebuild (and `prebuild`) the native app. If no extra properties are added, **Play Store** configuration will be added.
+
+Optional prop:
+
+- `paymentProvider` (_string_): payment provider to configure: `Play Store`, `Amazon AppStore`, `both`
+
+#### Example
+
+```json
+{
+  "expo": {
+    "plugins": [
+      [
+        "react-native-iap",
+        {
+          "paymentProvider": "both"
+        }
+      ]
+    ]
+  }
+}
+```
 
 ### How do I handle promoted products in iOS?
 

jest.config.js

@@ -2,7 +2,7 @@ module.exports = {
   clearMocks: true,
   coverageDirectory: 'coverage',
   moduleDirectories: ['node_modules', 'src'],
-  modulePathIgnorePatterns: ['IapExample', 'lib'],
+  modulePathIgnorePatterns: ['IapExample', 'lib', 'fixtures'],
   preset: 'react-native',
   setupFiles: ['<rootDir>/test/mocks/react-native-modules.js'],
   setupFilesAfterEnv: ['@testing-library/jest-native/extend-expect'],

package.json

@@ -55,7 +55,7 @@
     "!**/__mocks__"
   ],
   "scripts": {
-    "prepare": "bob build",
+    "prepare": "bob build && npm run clean:plugin && npm run build:plugin",
     "release": "release-it",
     "example": "yarn --cwd IapExample",
     "test": "jest",
@@ -67,7 +67,10 @@
     "lint:swift": "swiftlint lint --fix --format --path ios/*.swift --config .swiftlint.yml",
     "format": "git ls-files -m | xargs yarn prettier --write --ignore-unknown --no-error-on-unmatched-pattern",
     "bootstrap": "yarn example && yarn && yarn example pods",
-    "gen:doc": "typedoc"
+    "gen:doc": "typedoc",
+    "build:plugin": "tsc --build plugin",
+    "clean:plugin": "expo-module clean plugin",
+    "lint:plugin": "eslint plugin/src/*"
   },
   "devDependencies": {
     "@babel/eslint-parser": "7.18.9",
@@ -89,6 +92,7 @@
     "eslint-plugin-jest": "26.8.2",
     "eslint-plugin-prettier": "4.2.1",
     "eslint-plugin-simple-import-sort": "7.0.0",
+    "expo-module-scripts": "^3.0.4",
     "jest": "28.1.3",
     "monolinter": "1.0.4",
     "pod-install": "0.1.38",
@@ -108,5 +112,8 @@
   "peerDependencies": {
     "react": ">=16.13.1",
     "react-native": ">=0.65.1"
+  },
+  "dependencies": {
+    "@expo/config-plugins": "^5.0.4"
   }
 }

plugin/__tests__/fixtures/buildGradleFiles.ts

@@ -0,0 +1,164 @@
+const appBuildGradleWithoutIAP = `
+apply plugin: "com.android.application"
+
+import com.android.build.OutputFile
+
+def reactNativeArchitectures() {
+    def value = project.getProperties().get("reactNativeArchitectures")
+    return value ? value.split(",") : ["armeabi-v7a", "x86", "x86_64", "arm64-v8a"]
+}
+
+android {
+    ndkVersion rootProject.ext.ndkVersion
+
+    compileSdkVersion rootProject.ext.compileSdkVersion
+
+    defaultConfig {
+        applicationId 'com.test.withIAP'
+        minSdkVersion rootProject.ext.minSdkVersion
+        targetSdkVersion rootProject.ext.targetSdkVersion
+        versionCode 34
+        versionName "1.16.2"
+        buildConfigField "boolean", "IS_NEW_ARCHITECTURE_ENABLED", isNewArchitectureEnabled().toString()`;
+
+const appBuildGradleWithPlayStoreIAP = `
+apply plugin: "com.android.application"
+
+import com.android.build.OutputFile
+
+def reactNativeArchitectures() {
+    def value = project.getProperties().get("reactNativeArchitectures")
+    return value ? value.split(",") : ["armeabi-v7a", "x86", "x86_64", "arm64-v8a"]
+}
+
+android {
+    ndkVersion rootProject.ext.ndkVersion
+
+    compileSdkVersion rootProject.ext.compileSdkVersion
+
+    defaultConfig {
+missingDimensionStrategy "store", "play"
+        applicationId 'com.test.withIAP'
+        minSdkVersion rootProject.ext.minSdkVersion
+        targetSdkVersion rootProject.ext.targetSdkVersion
+        versionCode 34
+        versionName "1.16.2"
+        buildConfigField "boolean", "IS_NEW_ARCHITECTURE_ENABLED", isNewArchitectureEnabled().toString()`;
+
+const appBuildGradleWithAmazonStoreIAP = `
+apply plugin: "com.android.application"
+
+import com.android.build.OutputFile
+
+def reactNativeArchitectures() {
+    def value = project.getProperties().get("reactNativeArchitectures")
+    return value ? value.split(",") : ["armeabi-v7a", "x86", "x86_64", "arm64-v8a"]
+}
+
+android {
+    ndkVersion rootProject.ext.ndkVersion
+
+    compileSdkVersion rootProject.ext.compileSdkVersion
+
+    defaultConfig {
+missingDimensionStrategy "store", "amazon"
+        applicationId 'com.test.withIAP'
+        minSdkVersion rootProject.ext.minSdkVersion
+        targetSdkVersion rootProject.ext.targetSdkVersion
+        versionCode 34
+        versionName "1.16.2"
+        buildConfigField "boolean", "IS_NEW_ARCHITECTURE_ENABLED", isNewArchitectureEnabled().toString()`;
+
+const appBuildGradleWithBothIAP = `
+apply plugin: "com.android.application"
+
+import com.android.build.OutputFile
+
+def reactNativeArchitectures() {
+    def value = project.getProperties().get("reactNativeArchitectures")
+    return value ? value.split(",") : ["armeabi-v7a", "x86", "x86_64", "arm64-v8a"]
+}
+
+android {
+    ndkVersion rootProject.ext.ndkVersion
+
+    compileSdkVersion rootProject.ext.compileSdkVersion
+flavorDimensions "appstore"
+
+productFlavors {
+  googlePlay {
+    dimension "appstore"
+    missingDimensionStrategy "store", "play"
+  }
+
+  amazon {
+    dimension "appstore"
+    missingDimensionStrategy "store", "amazon"
+  }
+}
+
+    defaultConfig {
+        applicationId 'com.test.withIAP'
+        minSdkVersion rootProject.ext.minSdkVersion
+        targetSdkVersion rootProject.ext.targetSdkVersion
+        versionCode 34
+        versionName "1.16.2"
+        buildConfigField "boolean", "IS_NEW_ARCHITECTURE_ENABLED", isNewArchitectureEnabled().toString()`;
+
+const projectBuildGradleWithoutIAP = `
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    ext {
+        buildToolsVersion = findProperty('android.buildToolsVersion') ?: '31.0.0'
+        minSdkVersion = Integer.parseInt(findProperty('android.minSdkVersion') ?: '21')
+        compileSdkVersion = Integer.parseInt(findProperty('android.compileSdkVersion') ?: '31')
+        targetSdkVersion = Integer.parseInt(findProperty('android.targetSdkVersion') ?: '31')
+        if (findProperty('android.kotlinVersion')) {
+            kotlinVersion = findProperty('android.kotlinVersion')
+        }
+        frescoVersion = findProperty('expo.frescoVersion') ?: '2.5.0'
+
+        if (System.properties['os.arch'] == 'aarch64') {
+            // For M1 Users we need to use the NDK 24 which added support for aarch64
+            ndkVersion = '24.0.8215888'
+        } else {
+            // Otherwise we default to the side-by-side NDK version from AGP.
+            ndkVersion = '21.4.7075529'
+        }
+    }
+  }`;
+
+const projectBuildGradleWithIAP = `
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    ext {
+supportLibVersion = "28.0.0"
+        buildToolsVersion = findProperty('android.buildToolsVersion') ?: '31.0.0'
+        minSdkVersion = Integer.parseInt(findProperty('android.minSdkVersion') ?: '21')
+        compileSdkVersion = Integer.parseInt(findProperty('android.compileSdkVersion') ?: '31')
+        targetSdkVersion = Integer.parseInt(findProperty('android.targetSdkVersion') ?: '31')
+        if (findProperty('android.kotlinVersion')) {
+            kotlinVersion = findProperty('android.kotlinVersion')
+        }
+        frescoVersion = findProperty('expo.frescoVersion') ?: '2.5.0'
+
+        if (System.properties['os.arch'] == 'aarch64') {
+            // For M1 Users we need to use the NDK 24 which added support for aarch64
+            ndkVersion = '24.0.8215888'
+        } else {
+            // Otherwise we default to the side-by-side NDK version from AGP.
+            ndkVersion = '21.4.7075529'
+        }
+    }
+  }`;
+
+export {
+  appBuildGradleWithAmazonStoreIAP,
+  appBuildGradleWithBothIAP,
+  appBuildGradleWithoutIAP,
+  appBuildGradleWithPlayStoreIAP,
+  projectBuildGradleWithIAP,
+  projectBuildGradleWithoutIAP,
+};

plugin/__tests__/withIAP-test.ts

@@ -0,0 +1,56 @@
+import {modifyAppBuildGradle, modifyProjectBuildGradle} from '../src/withIAP';
+
+import {
+  appBuildGradleWithAmazonStoreIAP,
+  appBuildGradleWithBothIAP,
+  appBuildGradleWithoutIAP,
+  appBuildGradleWithPlayStoreIAP,
+  projectBuildGradleWithIAP,
+  projectBuildGradleWithoutIAP,
+} from './fixtures/buildGradleFiles';
+
+jest.mock('@expo/config-plugins', () => {
+  const plugins = jest.requireActual('@expo/config-plugins');
+
+  return {
+    ...plugins,
+    WarningAggregator: {addWarningAndroid: jest.fn()},
+  };
+});
+
+describe('Configures Android native project correctly', () => {
+  it(`Add supportLibVersion to android/build.gradle if it is not present`, () => {
+    expect(modifyProjectBuildGradle(projectBuildGradleWithoutIAP)).toMatch(
+      projectBuildGradleWithIAP,
+    );
+  });
+
+  it(`Add play store missingDimenstionStrategy to android/app/build.gradle if is not present`, () => {
+    expect(
+      modifyAppBuildGradle(appBuildGradleWithoutIAP, 'Play Store'),
+    ).toMatch(appBuildGradleWithPlayStoreIAP);
+  });
+
+  it(`Add amazon store missingDimenstionStrategy to android/app/build.gradle if is not present`, () => {
+    expect(
+      modifyAppBuildGradle(appBuildGradleWithoutIAP, 'Amazon AppStore'),
+    ).toMatch(appBuildGradleWithAmazonStoreIAP);
+  });
+
+  it(`Add play store and amazon payment providers to android/app/build.gradle if is not present`, () => {
+    expect(modifyAppBuildGradle(appBuildGradleWithoutIAP, 'both')).toMatch(
+      appBuildGradleWithBothIAP,
+    );
+  });
+  it(`Doesn't modify android/build.gradle if supportLibVersion already configured`, () => {
+    expect(modifyProjectBuildGradle(projectBuildGradleWithIAP)).toMatch(
+      projectBuildGradleWithIAP,
+    );
+  });
+
+  it(`Doesn't modify android/app/build.gradle if missingDimensionStrategy already configured`, () => {
+    expect(
+      modifyAppBuildGradle(appBuildGradleWithPlayStoreIAP, 'Play Store'),
+    ).toMatch(appBuildGradleWithPlayStoreIAP);
+  });
+});

plugin/build/withIAP.d.ts

@@ -0,0 +1,9 @@
+import type { ConfigPlugin } from '@expo/config-plugins';
+declare type PaymentProvider = 'Amazon AppStore' | 'both' | 'Play Store';
+export declare const modifyAppBuildGradle: (buildGradle: string, paymentProvider: PaymentProvider) => string;
+export declare const modifyProjectBuildGradle: (buildGradle: string) => string;
+interface Props {
+    paymentProvider?: PaymentProvider;
+}
+declare const withIAP: ConfigPlugin<Props | undefined>;
+export default withIAP;