--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/history/history.js	Mon Feb 08 16:43:14 2016 +0100
@@ -0,0 +1,215 @@
+/*
+ * history.js -- track nickname's history
+ *
+ * Copyright (c) 2013-2016 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* Modules */
+var Directory	= Irccd.Directory;
+var File	= Irccd.File;
+var Logger	= Irccd.Logger;
+var Plugin	= Irccd.Plugin;
+var Server	= Irccd.Server;
+var Util	= Irccd.Util;
+
+/* Plugin information */
+info = {
+	author: "David Demelier <markand@malikania.fr>",
+	license: "ISC",
+	summary: "track nickname's history",
+	version: "@IRCCD_VERSION@"
+};
+
+var formats = {
+	"error":	"#{nickname}, I'm sorry, something went wrong.",
+	"seen":		"#{nickname}, I've seen #{target} for the last time the %d-%m-%Y %H:%M",
+	"said":		"#{nickname}, #{target} said on %d-%m-%Y %H:%M: #{message}",
+	"unknown":	"#{nickname}, I've never seen #{target}.",
+	"usage":	"#{nickname}, usage: #{plugin} seen | said <target>."
+};
+
+function isSelf(server, origin)
+{
+	return server.info().nickname === Util.splituser(origin);
+}
+
+function command(server)
+{
+	return server.info().commandChar + "history";
+}
+
+function path(server, channel)
+{
+	var p;
+
+	if (Plugin.config["path"] !== undefined) {
+		p = Util.format(Plugin.config["path"], {
+			"server":	server.toString(),
+			"channel":	channel
+		});
+	} else {
+		p = Plugin.cachePath + "db.json";
+	}
+
+	return p;
+}
+
+function read(server, channel, nickname)
+{
+	var p = path(server, channel);
+	var db = {};
+
+	if (File.exists(p)) {
+		var file = new File(path(server, channel), "r");
+		var str = file.read();
+
+		db = JSON.parse(str);
+	}
+
+	/* Complete if needed */
+	if (!db[server])
+		db[server] = {};
+	if (!db[server][channel])
+		db[server][channel] = {};
+	if (!db[server][channel][nickname])
+		db[server][channel][nickname] = {};
+
+	return db;
+}
+
+function write(server, channel, nickname, message)
+{
+	var db = read(server, channel, nickname);
+	var entry = db[server][channel][nickname];
+	var p = path(server, channel);
+
+	if (!File.exists(File.dirname(p))) {
+		Logger.debug("creating directory " + File.dirname(p));
+		Directory.mkdir(File.dirname(p));
+	}
+
+	var file = new File(path(server, channel), "wt");
+
+	entry.timestamp = Date.now();
+	entry.message = (message) ? message : entry.message;
+
+	file.write(JSON.stringify(db));
+}
+
+function find(server, channel, target)
+{
+	var db = read(server, channel, target);
+	var it = db[server][channel][target];
+
+	if (it.timestamp)
+		return it;
+}
+
+function loadFormats()
+{
+	for (var key in formats) {
+		var optname = "format-" + key;
+
+		if (typeof (Plugin.config[optname]) !== "string")
+			continue;
+
+		if (Plugin.config[optname].length === 0)
+			Logger.warning("skipping empty '" + optname + "' format");
+		else
+			formats[key] = Plugin.config[optname];
+	}
+}
+
+function onCommand(server, origin, channel, message)
+{
+	var args = message.trim().split(" ");
+	var kw = {
+		"server":	server.toString(),
+		"channel":	channel,
+		"origin":	origin,
+		"nickname":	Util.splituser(origin),
+		"plugin":	command(server),
+	};
+
+	if (args.length !== 2 || args[0].length === 0 || args[1].length === 0) {
+		server.message(channel, Util.format(formats.usage, kw));
+		return;
+	}
+
+	if (args[0] !== "seen" && args[0] !== "said") {
+		server.message(channel, Util.format(formats.usage, kw));
+		return;
+	}
+
+	if (isSelf(server, args[1]))
+		return;
+
+	try {
+		var info = find(server, channel, args[1]);
+
+		kw.target = args[1];
+
+		if (!info) {
+			server.message(channel, Util.format(formats.unknown, kw));
+			return;
+		}
+
+		kw.date = info.timestamp;
+		kw.message = info.message ? info.message : "";
+
+		server.message(channel, Util.format(formats[args[0] == "seen" ? "seen" : "said"], kw));
+	} catch (e) {
+		server.message(channel, Util.format(kw));
+	}
+}
+
+function onJoin(server, origin, channel)
+{
+	write(server, channel, Util.splituser(origin));
+}
+
+function onMessage(server, origin, channel, message)
+{
+	write(server, channel, Util.splituser(origin), message);
+}
+
+onMe = onMessage;
+
+function onTopic(server, origin, channel)
+{
+	write(server, channel, Util.splituser(origin));
+}
+
+function onLoad()
+{
+	var table = Server.list();
+
+	for (var k in table)
+		for (var c in table[k].info().channels)
+			table[k].names(c);
+
+	loadFormats();
+}
+
+function onReload()
+{
+	loadFormats();
+}
+
+function onNames(server, channel, list)
+{
+	for (var i = 0; i < list.length; ++i)
+		write(server, channel, list[i]);
+}
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