From 009d6335a0fa9253e95ab558f00060b60ff4f7e1 Mon Sep 17 00:00:00 2001
From: Starbeamrainbowlabs <sbrl@starbeamrainbowlabs.com>
Date: Wed, 29 May 2019 11:59:40 +0100
Subject: [PATCH] Setup basic logging framework.

In the future, we might be able to use a proxy object here or some other
wizadry? I'm not sure.
---
 server/Helpers/Log.mjs                 | 44 ++++++++++++++++++++++++++
 server/bootstrap/container.mjs         |  5 ++-
 server/index.mjs                       |  5 +++
 server/settings.default.toml           |  6 ++++
 server/ttn-app-server/TTNAppServer.mjs |  7 ++--
 5 files changed, 62 insertions(+), 5 deletions(-)
 create mode 100644 server/Helpers/Log.mjs

diff --git a/server/Helpers/Log.mjs b/server/Helpers/Log.mjs
new file mode 100644
index 0000000..89f4b68
--- /dev/null
+++ b/server/Helpers/Log.mjs
@@ -0,0 +1,44 @@
+"use strict";
+
+import Ansi from './Ansi.mjs';
+
+class Log {
+	// Destructure the awilix container
+	constructor({ settings, ansi }) {
+		this.settings = settings;
+		/** @type {Ansi} */
+		this.a = ansi;
+		
+		this.start_time = new Date();
+		
+		// FUTURE: We could add a log target (e.g. a file etc.) here if required
+	}
+	
+	log_raw(func, ...items) {
+		let prefix = (new Date()).toISOString();
+		if(this.settings.logging.date_display_mode == "relative") {
+			prefix = (new Date() - this.start_time).toFixed(5);
+		}
+		
+		func(`${this.a.locol}[${prefix}]${this.a.reset}`, ...items);
+	}
+	log(...items) { this.log_raw(console.log, ...items); }
+	info(...items) { this.log_raw(console.info, ...items); }
+	debug(...items) { this.log_raw(console.debug, ...items); }
+	warn(...items) {
+		this.log_raw(console.warn,
+			this.a.hicol + this.a.fyellow,
+			...items,
+			this.a.reset
+		);
+	}
+	error(...items) {
+		this.log_raw(console.error,
+			this.a.hicol + this.a.fred,
+			...items,
+			this.a.reset
+		);
+	}
+}
+
+export default Log;
diff --git a/server/bootstrap/container.mjs b/server/bootstrap/container.mjs
index fa8dc32..5e9c1b5 100644
--- a/server/bootstrap/container.mjs
+++ b/server/bootstrap/container.mjs
@@ -3,6 +3,7 @@
 import a from 'awilix';
 
 import Ansi from '../Helpers/Ansi.mjs';
+import Log from '../Helpers/Log.mjs';
 import TTNAppServer from '../ttn-app-server/TTNAppServer.mjs';
 
 import settings from './settings.mjs';
@@ -14,10 +15,12 @@ const c = a.createContainer({
 
 c.register({
 	settings: a.asValue(settings),
-	ansi: a.asFunction(() => new Ansi()).singleton(),
+	ansi: a.asClass(Ansi).singleton(),
+	log: a.Class(Log).singleton(),
 	database: a.asFunction(database_init).singleton(),
 	TTNAppServer: a.asClass(TTNAppServer),
 });
+
 c.loadModules("../Repos.SQLite/*.mjs", {
 	register: a.asClass,
 	lifetime: a.Lifetime.SINGLETON
diff --git a/server/index.mjs b/server/index.mjs
index 60902e6..1f1097f 100755
--- a/server/index.mjs
+++ b/server/index.mjs
@@ -8,6 +8,7 @@ import show_help from './help.mjs';
 
 const settings = c.resolve("settings");
 const a = c.resolve("ansi");
+const l = c.resolve("log");
 
 // 2: CLI Argument Parsing
 let args = process.argv.slice(2); // Slice out the node binary name and the filename
@@ -45,8 +46,12 @@ if(extras.length < 1) {
 	process.exit();
 }
 
+l.log(`${a.fgreen}${a.hicol}*** LoRaWAN Signal Mapper ***`);
+
 switch(extras[0]) {
 	case "ttn-app-server":
+		l.log(`${a.fgreen}${a.hicol}Starting The Things Network application server${a.reset}`);
+		
 		let app_server = c.resolve("TTNAppServer");
 		app_server.run();
 		break;
diff --git a/server/settings.default.toml b/server/settings.default.toml
index fefe884..fc7706d 100644
--- a/server/settings.default.toml
+++ b/server/settings.default.toml
@@ -14,3 +14,9 @@ filename = "lorawan.sqlite"
 
 # The options to pass to better-sqlite3. You probably don't need to change this.
 [database.options]
+
+
+[logging]
+# The format the date displayed when logging things should take.
+# Allowed values: relative (e.g like when a Linux machine boots), absolute (e.g. like Nginx server logs)
+date_display_mode = "relative"
diff --git a/server/ttn-app-server/TTNAppServer.mjs b/server/ttn-app-server/TTNAppServer.mjs
index dba8d26..7da1796 100644
--- a/server/ttn-app-server/TTNAppServer.mjs
+++ b/server/ttn-app-server/TTNAppServer.mjs
@@ -1,15 +1,14 @@
 "use strict";
 
-import ansi from '../Helpers/Ansi.mjs';
-
 class TTNAppServer {
 	// Destructure the awilix container
-	constructor({ settings }) {
+	constructor({ settings, ansi }) {
 		this.settings = settings;
+		/** @type {Ansi} */
+		this.a = ansi;
 	}
 	
 	run() {
-		
 	}
 }