commit 5d3bf04dbb7082d91622f819b08fc63ac8743811
Author: kebler.net <kebler.net@gmail.com>
Date:   Sat Jun 12 14:23:41 2021 -0700

    initial commit 0.1.0

diff --git a/.eslintrc.yml b/.eslintrc.yml
new file mode 100644
index 0000000..d3af4fa
--- /dev/null
+++ b/.eslintrc.yml
@@ -0,0 +1,15 @@
+env:
+  node: true
+  es2021: true
+  mocha: true
+extends:
+  - standard
+parserOptions:
+  ecmaVersion: 12
+  sourceType: module
+rules:
+  indent: ["error", 2]
+  no-console: 0
+  semi: ["error", "never"]
+  # linebreak-style: ["error", "unix"]
+  quotes: ["error", "single"]
diff --git a/.gitignore b/.gitignore
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index 0000000..0672f1e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+/node_modules/
+/coverage/
+*.yaml
diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..fe99f98
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1,3 @@
+test/
+*.test.js
+example/
diff --git a/example/read.js b/example/read.js
new file mode 100644
index 0000000..e5bc755
--- /dev/null
+++ b/example/read.js
@@ -0,0 +1,10 @@
+import db from 'nedb-promises'
+
+const dbfile = 'example/history.db'
+
+const history = db.create(dbfile)
+
+;
+(async function () {
+  console.log(await history.find({ time: { $gt: 1 } }))
+})()
diff --git a/example/write.js b/example/write.js
new file mode 100644
index 0000000..380fdbe
--- /dev/null
+++ b/example/write.js
@@ -0,0 +1,17 @@
+import { write } from '../src/history.js'
+
+const opts = {
+  path: 'example/history.db',
+  name: 'example',
+  clear: true,
+  keys: {
+    test: 'custom common key'
+  }
+}
+
+const event = write(opts)
+
+event('something just happened')
+event({ state: 'on', zone: 5, msg: 'another thing just happened' })
+event('history writing again')
+setTimeout(() => (event('interval')), 10000)
diff --git a/nodemon.json b/nodemon.json
new file mode 100644
index 0000000..0578b79
--- /dev/null
+++ b/nodemon.json
@@ -0,0 +1,5 @@
+{
+    "ignore": [
+        "example/*.json"
+    ]
+}
\ No newline at end of file
diff --git a/package.json b/package.json
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index 0000000..c876bfc
--- /dev/null
+++ b/package.json
@@ -0,0 +1,45 @@
+{
+  "name": "@uci-utils/history",
+  "version": "0.1.0",
+  "description": "Maintain a history file of events in nljson",
+  "main": "./src/history.js",
+  "type": "module",
+  "scripts": {
+    "testd": "./node_modules/.bin/nodemon --exec './node_modules/.bin/mocha --timeout 30000' || exit 1",
+    "test": "./node_modules/.bin/mocha --timeout 30000 || exit 0",
+    "dev:write": "UCI_ENV=dev ./node_modules/.bin/nodemon example/write",
+    "dev:read": "UCI_ENV=dev ./node_modules/.bin/nodemon example/read",
+    "read": "node example/read",
+    "pro": "UCI_ENV='pro' node example/example",
+    "pro:path": "UCI_LOG_PATH=./example/example.log npm run pro"
+  },
+  "author": "David Kebler",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/uCOMmandIt/uci-changeme.git"
+  },
+  "keywords": [
+    "nodejs",
+    "history",
+    "json",
+    "log"
+  ],
+  "bugs": {
+    "url": "https://github.com/uCOMmandIt/uci-changeme/issues"
+  },
+  "homepage": "https://github.com/uCOMmandIt/uci-changeme#readme",
+  "dependencies": {
+    "debounce-fn": "^5.0.0",
+    "env-paths": "^2.2.1",
+    "make-dir": "^3.1.0"
+  },
+  "devDependencies": {
+    "chai": "^4.3.4",
+    "eslint": "^7.28.0",
+    "eslint-config-standard": "^16.0.3",
+    "mocha": "^9.0.0",
+    "nedb-promises": "^4.1.5",
+    "nodemon": "^2.0.7"
+  }
+}
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..bb26e47
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,4 @@
+# UCommandIt JSONL History
+#### maintain history file of events in newline json for a process
+
+## How to by Example
diff --git a/src/history.js b/src/history.js
new file mode 100644
index 0000000..79ec96e
--- /dev/null
+++ b/src/history.js
@@ -0,0 +1,52 @@
+import envPaths from 'env-paths'
+import { sync as mkdir } from 'make-dir'
+import { dirname } from 'path'
+import { createWriteStream, createReadStream } from 'fs'
+import crypto from 'crypto'
+import debounce from 'debounce-fn'
+
+function write (opts = {}) {
+  const path = opts.path ? opts.path : `${envPaths(opts.name || 'history', { suffix: null }).log}/${opts.name || process.pid}.log`
+  mkdir(dirname(path)) // makes recursively for any missing parent directories
+
+  const create = (path, clear) => {
+    const stream = createWriteStream(path, { flags: `${clear ? 'w' : 'a'}` })
+    // todo make sure stream was made
+    stream.on('close', (data) => {
+      console.log('the stream to history file was closed')
+    })
+    return stream
+  }
+
+  let output = create(path, opts.clear)
+
+  const _write = (obj) => {
+    if (output.writable) {
+      const tStamp = new Date()
+      const keys = {
+        _id: crypto.randomBytes(8).toString('hex'),
+        time: tStamp.getTime(),
+        datetime: tStamp.toString(),
+        utc: tStamp.toISOString()
+      }
+      if (typeof obj === 'string') obj = { msg: obj }
+      obj = Object.assign(keys, opts.keys, obj)
+      console.log('writing', obj)
+      output.write(JSON.stringify(obj) + '\n', function () {
+        debounce(output.destroy.bind(output), { wait: opts.close || 5000 })()
+      })
+    } else {
+      console.log('there is no stream, recreating')
+      output = create(path)
+      _write(obj)
+    }
+  }
+  return _write
+}
+
+function view (handler, opts) {
+
+}
+
+export default write
+export { write, view }
diff --git a/test/history.test.js b/test/history.test.js
new file mode 100644
index 0000000..861efe8
--- /dev/null
+++ b/test/history.test.js
@@ -0,0 +1,92 @@
+import logger from '../src/logger.js'
+import { expect } from 'chai'
+import { it } from 'mocha'
+import { stdout } from 'test-console'
+//https://github.com/jamesshore/test-console
+
+describe('JSON Logging Utility Testing ',async ()=> {
+
+  let log
+  // let captured = stdout.inspect().output
+  // let capture = stdout.inspect
+  // let restore = stdout.inspect().restore
+  //
+  class LogTest {
+    constructor(opts) {
+      log = logger({
+        name: 'test',
+        id: opts.id,
+        file: 'example/example.js',
+        // class: 'LogTest',
+        // repo:'test repo'
+        package:'@uci-utils/test'
+      })
+      // console.log('env',process.env.UCI_ENV)
+    }
+    async logit(level,msg,props={}) {
+      Object.assign(props,{msg:msg})
+      log[level](props)
+    }
+  }
+
+  // TODO this is available from the logger as .levels
+  let levelName = {
+    10:'trace',
+    20:'debug',
+    30:'info',
+    40:'warn',
+    50:'error',
+    60:'fatal'
+  }
+
+  let logtest = {}
+  let inspect = {}
+
+  beforeEach( () => {
+    // console.log('starting console capture')
+    inspect = stdout.inspect()
+  })
+  afterEach( () => {
+    inspect.restore()
+    // console.log('console.restored')
+  })
+
+
+  it('check dev output to console'   , async function () {
+    // setup
+    let msg='test'
+    let level = 'info'
+    let moreprops = {}
+    process.env.UCI_ENV='dev'
+    logtest = new LogTest({id:'someid'})
+
+    // create log to stdout
+    logtest.logit(level,msg,moreprops)
+
+    // test stdout response
+    let response = inspect.output[0]
+    expect(response).to.have.string(level.toUpperCase())  &&
+    expect(response).to.have.string(msg)
+  })
+
+  it('check json output'   , async function () {
+    // setup
+    let msg='test'
+    let level = 'info'
+    let moreprops = {}
+    process.env.UCI_ENV='dev'
+    process.env.UCI_LOG_JSON=true
+    logtest = new LogTest({id:'someid'})
+
+    // create log to stdout
+    logtest.logit(level,msg,moreprops)
+
+    // test stdout response
+    let response = inspect.output[0]
+    response = JSON.parse(response)
+    expect(response.msg).to.equal(msg)  &&
+    expect(levelName[response.level]).to.equal(level)
+  })
+
+
+})