feat: add SkipDataAndType class

Author: classicalliu

packages/neuron-wallet/src/services/skip-data-and-type.ts

@@ -0,0 +1,51 @@
+import FileService from './file'
+
+export default class SkipDataAndType {
+  private static moduleName = ''
+  private static fileName = 'skip-data-and-type.json'
+
+  private open: boolean | undefined = undefined
+
+  private static instance: SkipDataAndType
+
+  static getInstance(): SkipDataAndType {
+    if (!SkipDataAndType.instance) {
+      SkipDataAndType.instance = new SkipDataAndType()
+    }
+
+    return SkipDataAndType.instance
+  }
+
+  // open means can use cells with data and type
+  public update(open: boolean) {
+    FileService.getInstance().writeFileSync(
+      SkipDataAndType.moduleName,
+      SkipDataAndType.fileName,
+      JSON.stringify({
+        open,
+      })
+    )
+    // cache this variable
+    this.open = open
+  }
+
+  public get(): boolean {
+    // if cached, don't to read file
+    if (this.open !== undefined) {
+      return this.open
+    }
+    const fileService = FileService.getInstance()
+    const { moduleName, fileName } = SkipDataAndType
+
+    if (fileService.hasFile(moduleName, fileName)) {
+      const info = FileService.getInstance().readFileSync(moduleName, fileName)
+      const { open } = JSON.parse(info)
+      if (open === false) {
+        return false
+      }
+    }
+
+    // default is true
+    return true
+  }
+}

packages/neuron-wallet/tests/services/skip-data-and-type.test.ts

@@ -0,0 +1,56 @@
+import SkipDataAndType from '../../src/services/skip-data-and-type'
+import FileService from '../../src/services/file'
+
+describe(`SkipDataAndType`, () => {
+  let skipDataAndType: SkipDataAndType | undefined
+
+  beforeEach(() => {
+    const fileService = FileService.getInstance()
+    // @ts-ignore: Private method
+    const { moduleName, fileName } = SkipDataAndType
+    if (fileService.hasFile(moduleName, fileName)) {
+      fileService.deleteFileSync(moduleName, fileName)
+    }
+
+    skipDataAndType = new SkipDataAndType()
+  })
+
+  it('getInstance', () => {
+    const skip = SkipDataAndType.getInstance()
+    expect(skip).toBeInstanceOf(SkipDataAndType)
+  })
+
+  it('update', () => {
+    expect(() => {
+      skipDataAndType!.update(true)
+    }).not.toThrowError()
+  })
+
+  describe('with instance cache', () => {
+    it('get true', () => {
+      skipDataAndType!.update(true)
+      const open = skipDataAndType!.get()
+      expect(open).toBe(true)
+    })
+
+    it('get false', () => {
+      skipDataAndType!.update(false)
+      const open = skipDataAndType!.get()
+      expect(open).toBe(false)
+    })
+  })
+
+  describe('without cache', () => {
+    it('first time open', () => {
+      const open = skipDataAndType!.get()
+      expect(open).toBe(true)
+    })
+
+    it('new instance', () => {
+      skipDataAndType!.update(false)
+      const newInstance = new SkipDataAndType()
+      const open = newInstance.get()
+      expect(open).toBe(false)
+    })
+  })
+})