feat: all in shutters but starts introducing generics

.gitignore

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+node_modules
+dist

.prettierrc

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+{
+  "singleQuote": true,
+  "printWidth": 120,
+  "semi": false,
+  "trailingComma": "none",
+  "arrowParens": "avoid"
+}

package.json

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+{
+  "engines": {
+    "node": "0.12"
+  },
+  "private": true,
+  "scripts": {
+    "commit": "git-cz",
+    "pretty-quick": "pretty-quick",
+    "prettify:fix": "prettier --write 'packages/**/*.{js,ts}'",
+    "prettify": "prettier --check 'packages/**/*.{js,ts}'"
+  },
+  "workspaces": [
+    "packages/*"
+  ],
+  "devDependencies": {
+    "@babel/core": "^7.9.6",
+    "@babel/preset-env": "^7.9.6",
+    "@babel/preset-typescript": "^7.9.0",
+    "babel-jest": "^26.0.1",
+    "jest": "^26.0.1",
+    "prettier": "^2.0.5",
+    "pretty-quick": "^2.0.1"
+  }
+}

packages/sls-app/babel.config.js

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+module.exports = {
+  presets: [
+    [
+      '@babel/preset-env',
+      {
+        targets: {
+          node: 'current'
+        }
+      },
+      '@babel/preset-typescript'
+    ]
+  ]
+}

packages/sls-app/package.json

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+{
+  "name": "sls-app",
+  "version": "1.0.0",
+  "main": "index.js",
+  "license": "MIT",
+  "scripts": {
+    "test": "jest"
+  }
+}

packages/sls-app/src/index.test.ts

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+import { application } from './'
+
+describe('application flow', () => {
+  it('creates an application with a simple type', () => {
+    application<string, string, string>
+        .pre(({payload, dependecies}) => (console.log(payload, dependecies), p))
+  })
+})

packages/sls-app/src/index.ts

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+// configuration I want to be able to debug invocation
+type Application<P, D, R> = {
+  pre(actionContextFunction: ActionContextFunction<P, D>): Application<P, D, R>
+  action(): Application<P, D, R>
+  post(): Application<P, D, R>
+  run(payload: P, dependencies: D): Promise<R>
+}
+
+type PreActionContext<P, D> = {
+  payload: P
+  dependencies: D
+}
+
+type ActionContextFunction<P, D> = (actionContext: PreActionContext<P, D>) => void
+
+type PreAction<P, D> = {
+  func: ActionContextFunction<P, D>
+  // maybe we have type
+}
+
+// allow to configure the application e.g. log each entry
+export function Application<P, D, R>(): Application<P, D, R> {
+  // maybe instead of using array we an explore using Task concept and
+  // and instead we can just compose function
+
+  const preActions: Array<PreAction<P, D>> = []
+  return {
+    pre(actionFunction) {
+      // allow to push logger
+      preActions.push({ func: actionFunction })
+      return this
+    },
+    action() {
+      return this
+    },
+    post() {
+      return this
+    },
+    run(payload, dependencies) {
+      return (
+        preActions
+          // we work with promises because this allows us easy capture all the async stuff
+          .reduce((acc, v) => acc.then(r => (v.func(r), r)), Promise.resolve({ payload, dependencies }))
+          .then
+          // do action now will work with pre
+          ()
+          .then
+          // do post actions
+          ()
+      )
+    }
+  }
+}

packages/sls-app/tsconfig.json

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+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./dist",
+    "declaration": true
+  },
+  "include": ["src/**/*"],
+  "exclude": ["dist/**/*"]
+}

tsconfig.json

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+{
+  "compilerOptions": {
+    /* Basic Options */
+    // "incremental": true,                   /* Enable incremental compilation */
+    "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */
+    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
+    // "lib": [],                             /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
+    // "checkJs": true,                       /* Report errors in .js files. */
+    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    // "outDir": "./",                        /* Redirect output structure to the directory. */
+    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "composite": true,                     /* Enable project compilation */
+    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
+    // "removeComments": true,                /* Do not emit comments to output. */
+    // "noEmit": true,                        /* Do not emit outputs. */
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true,                           /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
+    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "noUnusedLocals": true,                /* Report errors on unused locals. */
+    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
+    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+    // "types": [],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+
+    /* Advanced Options */
+    "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
+  }
+}