Add sqlite3 and table logging functionality. Track all frames all the time.

lib/db/index.js

@@ -1,2 +1,35 @@
 'use strict'
 
+const os = require('os')
+const sqlite3 = require('sqlite3').verbose()
+const squel = require('squel')
+const DB_FILE = os.homedir() + '/.intval3.db'
+const db = new sqlite3.Database(DB_FILE)
+
+class DB {
+	constructor () {
+		this._table = 'frames'
+		this.createTable()
+	}
+	createTable () {
+		const query = `CREATE TABLE
+		IF NOT EXISTS ${this._table} (
+			dir BOOLEAN,
+			exposure INTEGER,
+			start INTEGER,
+			stop INTEGER,
+			len INTEGER,
+			counter INTEGER
+		);`
+		db.run(query)
+	}
+	insert (obj) {
+		const query = squel.insert()
+				.into(this._table)
+				.setFields(obj) //dir, exposure, start, stop, len, counter
+				.toString()
+		db.run(query)
+	}
+}
+
+module.exports = new DB()

lib/intval/index.js

@@ -1,5 +1,6 @@
 'use strict'
 
+const db = require('../db')
 const log = require('../log')('intval')
 const storage = require('node-persist')
 const fs = require('fs')
@@ -93,6 +94,7 @@ intval._setState = function (data) {
 			paused : false,
 			exposure : 0, 	//length of frame exposure, in ms
 			delay : 0, 		//delay before start of frame, in ms
+			current : {}, //current settings
 			cb : () => {}
 		},
 		release : {
@@ -178,16 +180,30 @@ intval._pause = function () {
 *
 */
 intval._stop = function () {
-	intval._pin.fwd.writeSync(0)
-	intval._pin.bwd.writeSync(0)
+	const entry = {}
 	const now = +new Date()
 	const len = now - intval._state.frame.start
 
+	intval._pin.fwd.writeSync(0)
+	intval._pin.bwd.writeSync(0)
+
 	log.info(`_stop`, { frame : len })
 
 	intval._pin.micro.unwatch()
 	intval._state.frame.active = false
+
 	if (intval._state.frame.cb) intval._state.frame.cb(len)
+	
+	entry.start = intval._state.frame.start
+	entry.stop = now
+	entry.len = len
+	entry.dir = intval._state.current.dir
+	entry.exposure = intval._state.frame.current.exposure
+	entry.counter = intval._state.counter
+
+	db.insert(entry)
+
+	intval._state.frame.current = {}
 }
 /**
 * Callback for watching relese switch state changes.
@@ -326,34 +342,34 @@ intval.setCounter = function (val = 0) {
 * Begin a single frame with set variables or defaults
 *
 * @param {?boolean} 	[dir="null"] 			(optional) Direction of the frame
-* @param {?integer} 	[time="null"] 		(optional) Exposure time, 0 = minimum
+* @param {?integer} 	[exposure="null"] 		(optional) Exposure time, 0 = minimum
 *
 */
-intval.frame = function (dir = null, time = null, cb = () => {}) {
+intval.frame = function (dir = null, expsure = null, cb = () => {}) {
 	if (dir === true || (dir === null && intval._state.frame.dir === true) ) {
 		dir =  true
 	} else {
 		dir = false
 	}
 	
-	if (time === null && intval._state.frame.exposure !== 0) {
-		time = intval._state.frame.exposure
-	} else if (time === null) {
-		time = 0 //default speed
+	if (exposure === null && intval._state.frame.exposure !== 0) {
+		exposure = intval._state.frame.exposure
+	} else if (exposure === null) {
+		exposure = 0 //default speed
 	}
 
 	intval._state.frame.start = +new Date()
 	intval._state.frame.active = true
 	intval._pin.micro.watch(intval._watchMicro)
 
-	log.info('frame', {dir : dir ? 'forward' : 'backward', exposure : time})
+	log.info('frame', {dir : dir ? 'forward' : 'backward', exposure : exposure})
 
 	if (dir) {
 		intval._startFwd()
 	} else {
 		intval._startBwd()
 	}
-	if (time !== 0) {
+	if (exposure !== 0) {
 		intval._state.frame.paused = true
 		if (dir) {
 			setTimeout(intval._pause, intval._frame.open)
@@ -361,14 +377,14 @@ intval.frame = function (dir = null, time = null, cb = () => {}) {
 			setTimeout( () => {
 				intval._state.frame.paused = false
 				intval._startFwd()
-			}, time + intval._frame.closed)
+			}, exposure + intval._frame.closed)
 		} else {
 			setTimeout(intval._pause, intval._frame.openBwd)
 			setTimeout( () => {
 				//log.info('frame', 'restarting')
 				intval._state.frame.paused = false
 				intval._startBwd()
-			}, time + intval._frame.closed)
+			}, exposure + intval._frame.closed)
 		}
 	}
 	if (dir) {
@@ -384,6 +400,10 @@ intval.frame = function (dir = null, time = null, cb = () => {}) {
 			cb(len)
 		}
 	}
+	intval._state.frame.current = {
+		dir: dir,
+		exposure: time
+	}
 }
 /**
 * Start a sequence of frames, using defaults or explicit instructions

scripts/intval3-install.sh

@@ -9,7 +9,7 @@ apt-get install nodejs npm -y
 npm install -g n
 n 9.1.0
 npm install -g npm@latest
-npm install -g pm2
+npm install -g pm2 node-gyp
 
 echo "Installing bluetooth dependencies..."
 apt-get install bluetooth bluez libbluetooth-dev libudev-dev -y