[install] Work on install mechanism so modules can independently install/update tables

1 files changed, 108 insertions, 0 deletions

diff --git a/script/install.js b/script/install.js
new file mode 100644
index 00000000..2dec46d4
--- /dev/null
+++ b/script/install.js
@@ -0,0 +1,108 @@
+var onceOnlyGoddammit = false;
+var slxModules = {};
+var slxTries = {};
+var slxCurrent = false;
+
+function slxRunInstall() {
+	if (onceOnlyGoddammit)
+		return;
+	onceOnlyGoddammit = true;
+	var first = false;
+	list = $('.id-col').each(function () {
+		var id = $(this).text();
+		slxModules[id] = 'IDLE';
+		slxTries[id] = 0;
+		if (first === false) {
+			first = id;
+		}
+	});
+	if (first !== false) {
+		slxRun(first);
+	}
+}
+
+function makeCallback(callback, userData) {
+	return function (firstParam) {
+		callback(this, userData, firstParam);
+	};
+}
+
+function slxRun(moduleName) {
+	var dest = $('#mod-' + moduleName);
+	if (dest.length !== 1 || typeof slxModules[moduleName] === 'undefined') {
+		alert('No such module: ' + moduleName);
+		return;
+	}
+	if (slxModules[moduleName] === 'IDLE' || slxModules[moduleName] === 'UPDATE_RETRY') {
+		if (slxTries[moduleName]++ > 3)
+			return;
+		slxModules[moduleName] = 'WORKING';
+		dest.text('Working.....');
+		slxCurrent = moduleName;
+		$.post('install.php', {module: moduleName}, makeCallback(slxDone, moduleName), 'json')
+			.always(makeCallback(slxTrigger, moduleName));
+	}
+}
+
+var slxDone = function (elem, moduleName, jsonReply) {
+	if (!jsonReply) {
+		jsonReply = {};
+	}
+	if (!jsonReply.status) {
+		jsonReply.status = 'UPDATE_FAILED';
+		jsonReply.message = 'Unknown/no status code received from server';
+	}
+	var status = jsonReply.status;
+	if (jsonReply.message) {
+		status = status + ' (' + jsonReply.message + ')';
+	}
+	console.log('D');
+	console.log(elem);
+	slxModules[moduleName] = jsonReply.status;
+	$('#mod-' + moduleName).text(status);
+	if (jsonReply.status === 'UPDATE_NOOP' || jsonReply.status === 'UPDATE_DONE') {
+		$('#mod-' + moduleName).css('color', '#0c0');
+	}
+	console.log('E');
+}
+
+var slxTrigger = function (elem, moduleName) {
+	if (slxModules[moduleName] === 'WORKING') {
+		slxModules[moduleName] = 'UPDATE_FAILED';
+		$(elem).text('UPDATE_FAILED (No response from server)');
+	}
+	if (slxCurrent === moduleName) {
+		slxCurrent = false;
+		slxRunNext(moduleName);
+	}
+}
+
+function slxRunNext(lastModule) {
+	var next = false;
+	var first = false;
+	for (var key in slxModules) {
+		if (!slxModules.hasOwnProperty(key))
+			continue;
+		//
+		if (slxTries[key] < 3 && (slxModules[key] === 'IDLE' || slxModules[key] === 'UPDATE_RETRY')) {
+			if (next === true) {
+				next = key;
+				break;
+			}
+			if (first === false) {
+				first = key;
+			}
+		}
+		if (next === false && key === lastModule) {
+			next = true;
+		}
+	}
+	if (next === false || next === true) {
+		next = first;
+	}
+	if (next !== false) {
+		slxRun(next);
+	} else {
+		alert('Done.');
+	}
+}
\ No newline at end of file