From 9c7e36c87bfbe8bdd727a513508accc89576fd0f Mon Sep 17 00:00:00 2001
From: Maksim Sinik <maksim@sinik.it>
Date: Wed, 4 Mar 2020 15:31:24 +0100
Subject: [PATCH] feat: implement cli for generate couchdb's design documents

---
 .eslintrc.js            |  1 +
 bin/ddoc.js             | 82 ++++++++++++++++++++++++++++++++++++
 package.json            | 12 +++++-
 src/bin/ddoc.ts         | 93 +++++++++++++++++++++++++++++++++++++++++
 src/bin/tsconfig.json   | 14 +++++++
 src/db/designs/index.ts |  1 -
 src/db/tsconfig.json    |  7 ++--
 7 files changed, 203 insertions(+), 7 deletions(-)
 create mode 100644 bin/ddoc.js
 create mode 100644 src/bin/ddoc.ts
 create mode 100644 src/bin/tsconfig.json
 delete mode 100644 src/db/designs/index.ts

diff --git a/.eslintrc.js b/.eslintrc.js
index 16866a65..e2422a7e 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -1,4 +1,5 @@
 module.exports = {
+  ignorePatterns: ['bin'],
   extends: [
     'plugin:@typescript-eslint/recommended',
     'prettier',
diff --git a/bin/ddoc.js b/bin/ddoc.js
new file mode 100644
index 00000000..64cf8250
--- /dev/null
+++ b/bin/ddoc.js
@@ -0,0 +1,82 @@
+#!/usr/bin/env node
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const path_1 = __importDefault(require("path"));
+const fs_1 = __importDefault(require("fs"));
+const util_1 = require("util");
+const sade_1 = __importDefault(require("sade"));
+const typescript_1 = __importDefault(require("typescript"));
+const require_from_string_1 = __importDefault(require("require-from-string"));
+const glob_1 = __importDefault(require("glob"));
+const mkdirp_1 = __importDefault(require("mkdirp"));
+const stat = util_1.promisify(fs_1.default.stat);
+const readFile = util_1.promisify(fs_1.default.readFile);
+const writeFile = util_1.promisify(fs_1.default.writeFile);
+const glob = util_1.promisify(glob_1.default);
+const prog = sade_1.default('ddoc');
+prog.version('0.1.0');
+prog
+    .command('build <src>', 'Build design document(s) from TypeScript soruce directory or file.', {
+    default: true,
+})
+    .option('-c, --config', 'Provide path to custom tsconfig.json', './tsconfig.json')
+    .example('build src/db/designs')
+    .example('build src/db/designs/patient.ts -c src/db/tsconfig.json')
+    .action(async (src, opts) => {
+    var _a;
+    try {
+        const cwd = process.cwd();
+        const tsconfigPath = path_1.default.isAbsolute(opts.config) ? opts.config : path_1.default.join(cwd, opts.config);
+        console.log(`> using ${tsconfigPath} config`);
+        const tsconfig = require(tsconfigPath);
+        src = path_1.default.isAbsolute(src) ? path_1.default.normalize(src) : path_1.default.join(cwd, src);
+        const srcStats = await stat(src);
+        let dest = ((_a = tsconfig === null || tsconfig === void 0 ? void 0 : tsconfig.compilerOptions) === null || _a === void 0 ? void 0 : _a.outDir) ? path_1.default.join(path_1.default.dirname(tsconfigPath), tsconfig.compilerOptions.outDir)
+            : '';
+        let ddocs;
+        if (srcStats.isDirectory()) {
+            dest = dest || src;
+            ddocs = await glob(path_1.default.join(src, '**/*.ts'));
+        }
+        else {
+            dest = dest || path_1.default.dirname(src);
+            ddocs = [src];
+        }
+        console.log(`> src directory is ${src}`);
+        await mkdirp_1.default(dest);
+        console.log(`> destination directory is ${dest}`);
+        const errors = [];
+        await Promise.all(ddocs.map(async (srcPath) => {
+            try {
+                const sourceFile = (await readFile(srcPath)).toString();
+                const output = typescript_1.default.transpileModule(sourceFile, tsconfig);
+                const ddoc = require_from_string_1.default(output.outputText);
+                const filename = path_1.default.basename(srcPath, '.ts');
+                const stringifiedDesign = JSON.stringify(ddoc, (_, val) => {
+                    if (typeof val === 'function') {
+                        return val.toString();
+                    }
+                    return val;
+                }, 1);
+                await writeFile(path_1.default.join(dest, `${filename}.json`), stringifiedDesign);
+            }
+            catch (err) {
+                errors.push(err);
+            }
+        }));
+        if (errors.length > 0) {
+            errors.forEach(err => {
+                console.error(err);
+            });
+            throw new Error(`Compilation failed. Resolve errors in your code and try again.`);
+        }
+    }
+    catch (err) {
+        console.error(err);
+        process.exit(1);
+    }
+});
+prog.parse(process.argv);
diff --git a/package.json b/package.json
index dc845aa6..a387fd57 100644
--- a/package.json
+++ b/package.json
@@ -8,9 +8,11 @@
     "url": "https://github.com/HospitalRun/hospitalrun-server.git"
   },
   "scripts": {
+    "ddoc": "npm run build:bin && node bin/ddoc",
     "commit": "npx git-cz",
     "build": "npm run clean && tsc -p ./tsconfig.json && npm run build:designs",
     "build:designs": "tsc -p ./src/db/tsconfig.json",
+    "build:bin": "rimraf bin && tsc -p ./src/bin/tsconfig.json",
     "start": "node dist",
     "clean": "rimraf dist",
     "dev:db": "pouchdb-server --config ./db/config.json",
@@ -30,7 +32,6 @@
   "author": "Maksim Sinik <maksim@sinik.it>",
   "license": "MIT",
   "dependencies": {
-    "cross-env": "~7.0.0",
     "fastify": "~2.12.0",
     "fastify-autoload": "~1.2.2",
     "fastify-blipp": "~2.1.0",
@@ -41,14 +42,18 @@
     "fastify-plugin": "~1.6.1",
     "make-promises-safe": "~5.1.0",
     "nano": "~8.2.1",
-    "qs": "~6.9.1"
+    "qs": "~6.9.1",
+    "require-from-string": "~2.0.2"
   },
   "devDependencies": {
     "@commitlint/cli": "8.3.5",
     "@commitlint/config-conventional": "8.3.4",
     "@commitlint/prompt": "8.3.5",
+    "@types/mkdirp": "~1.0.0",
     "@types/node": "~13.7.0",
     "@types/qs": "~6.9.0",
+    "@types/require-from-string": "~1.2.0",
+    "@types/sade": "~1.6.0",
     "@typescript-eslint/eslint-plugin": "~2.21.0",
     "@typescript-eslint/parser": "~2.21.0",
     "commitizen": "~4.0.3",
@@ -61,14 +66,17 @@
     "eslint-config-prettier": "~6.10.0",
     "eslint-plugin-import": "~2.20.0",
     "eslint-plugin-prettier": "~3.1.0",
+    "glob": "~7.1.6",
     "husky": "~4.2.0",
     "lint-staged": "~10.0.7",
+    "mkdirp": "~1.0.3",
     "nodemon": "~2.0.0",
     "npm-run-all": "~4.1.5",
     "pino-colada": "~1.5.0",
     "pouchdb-server": "~4.2.0",
     "prettier": "~1.19.1",
     "rimraf": "~3.0.0",
+    "sade": "~1.7.3",
     "source-map-support": "~0.5.16",
     "tap": "~14.10.5",
     "tap-mocha-reporter": "~5.0.0",
diff --git a/src/bin/ddoc.ts b/src/bin/ddoc.ts
new file mode 100644
index 00000000..d775d492
--- /dev/null
+++ b/src/bin/ddoc.ts
@@ -0,0 +1,93 @@
+#!/usr/bin/env node
+
+import path from 'path'
+import fs from 'fs'
+import { promisify } from 'util'
+import sade from 'sade'
+import ts from 'typescript'
+import requireFromString from 'require-from-string'
+import originalGlob from 'glob'
+import mkdirp from 'mkdirp'
+
+const stat = promisify(fs.stat)
+const readFile = promisify(fs.readFile)
+const writeFile = promisify(fs.writeFile)
+const glob = promisify(originalGlob)
+
+const prog = sade('ddoc')
+
+prog.version('0.1.0')
+
+prog
+  .command('build <src>', 'Build design document(s) from TypeScript soruce directory or file.', {
+    default: true,
+  })
+  // .describe('Build design documents from TypeScript soruce directory or file.')
+  .option('-c, --config', 'Provide path to custom tsconfig.json', './tsconfig.json')
+  .example('build src/db/designs')
+  .example('build src/db/designs/patient.ts -c src/db/tsconfig.json')
+  .action(async (src, opts) => {
+    try {
+      const cwd = process.cwd()
+      const tsconfigPath = path.isAbsolute(opts.config) ? opts.config : path.join(cwd, opts.config)
+
+      console.log(`> using ${tsconfigPath} config`)
+      const tsconfig = require(tsconfigPath) // eslint-disable-line
+
+      src = path.isAbsolute(src) ? path.normalize(src) : path.join(cwd, src) // eslint-disable-line
+
+      const srcStats = await stat(src)
+      // use outDir if specified inside tsconfig, otherwise build json alongside ts files
+      let dest: string = tsconfig?.compilerOptions?.outDir
+        ? path.join(path.dirname(tsconfigPath), tsconfig.compilerOptions.outDir)
+        : ''
+      let ddocs: string[]
+      if (srcStats.isDirectory()) {
+        dest = dest || src
+        ddocs = await glob(path.join(src, '**/*.ts'))
+      } else {
+        dest = dest || path.dirname(src)
+        ddocs = [src]
+      }
+
+      console.log(`> src directory is ${src}`)
+      await mkdirp(dest)
+      console.log(`> destination directory is ${dest}`)
+
+      const errors: Error[] = []
+      await Promise.all(
+        ddocs.map(async srcPath => {
+          try {
+            const sourceFile = (await readFile(srcPath)).toString()
+            const output = ts.transpileModule(sourceFile, tsconfig)
+            const ddoc = requireFromString(output.outputText)
+            const filename = path.basename(srcPath, '.ts')
+            const stringifiedDesign = JSON.stringify(
+              ddoc,
+              (_, val) => {
+                if (typeof val === 'function') {
+                  return val.toString()
+                }
+                return val
+              },
+              1,
+            )
+            await writeFile(path.join(dest, `${filename}.json`), stringifiedDesign)
+          } catch (err) {
+            errors.push(err)
+          }
+        }),
+      )
+      if (errors.length > 0) {
+        errors.forEach(err => {
+          console.error(err)
+        })
+        throw new Error(`Compilation failed. Resolve errors in your code and try again.`)
+      }
+    } catch (err) {
+      console.error(err)
+      process.exit(1)
+    }
+  })
+
+prog.parse(process.argv)
diff --git a/src/bin/tsconfig.json b/src/bin/tsconfig.json
new file mode 100644
index 00000000..27269093
--- /dev/null
+++ b/src/bin/tsconfig.json
@@ -0,0 +1,14 @@
+// we need this custom tsconfig.json to handle CouchDB Javascript Context locally to this folder
+{
+  "extends": "../../tsconfig.json",
+  "include": [
+    "."
+  ],
+  "exclude": [
+    "node_modules",
+  ],
+  "compilerOptions": {
+    "outDir": "../../bin",
+    "sourceMap": false
+  }
+}
diff --git a/src/db/designs/index.ts b/src/db/designs/index.ts
deleted file mode 100644
index 3a5910a3..00000000
--- a/src/db/designs/index.ts
+++ /dev/null
@@ -1 +0,0 @@
-export const designsRootFolder = __dirname
diff --git a/src/db/tsconfig.json b/src/db/tsconfig.json
index 45b022af..65c19345 100644
--- a/src/db/tsconfig.json
+++ b/src/db/tsconfig.json
@@ -1,17 +1,16 @@
-// we need this custom tsconfig.json to handle CouchDB Javascript Context locally to this folder
 {
   "extends": "../../tsconfig.json",
   "include": [
     "."
   ],
   "exclude": [
-    "node_modules",
+    "node_modules"
   ],
   "compilerOptions": {
     "typeRoots": [
-      "../../node_modules/@types",
       "./design-functions-context.d.ts"
     ],
-    "outDir": "../../dist/db",
+    "outDir": "../../db/designs",
+    "sourceMap": false
   }
 }