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var path = require('path');
var OKQuery = require('okquery');
var OKView = require('okview');
var OKDB = require('okdb');
var OKResource = require('okresource')
var OKTemplate = require('oktemplate');
var OKServer = require('okserver');
var OKRestEndpoint = require('okrest');
/**
* OKCMS!
* Basically takes configuration and gives you a server.
*/
function OKCMS(options) {
options = options || {};
var root = this._root = options.root || 'www';
// Reduce resource config into unique set
this._resourceConfig = options.resources || [];
this._views = options.views || {
'/': { template: 'index' }
};
this._resourceRoot = options.resourceRoot || '/api';
this._server = new OKServer({root: root});
this._templates = new OKTemplate({root: root});
var db = this._db = options.db || new OKDB();
// Special query for getting meta info
this._meta = options.meta || {
name: 'meta',
get: function() {
return db.getMeta();
}
};
this._init();
}
OKCMS.prototype.listen = function listen(port, options) {
options = options || {};
this._server.listen(port);
};
OKCMS.prototype._init = function _init() {
var self = this;
// Create resources instances from config and add CRUD views on them
// NOTE Does not support subresources
this._resources = this._resourceConfig.map(function (config) {
var resource = self._createResource(config);
var route = path.join(self._resourceRoot, resource.name);
self._server.addView(route, resource.view());
return resource;
});
// Add HTML views
Object.keys(this._views)
// Make sure more specific routes are processed first
// TODO This is not semantically correct (bro)
.sort(function(a, b) {
return a.length < b.length;
})
// For each route / viewOptions pair, add a view
.forEach(function eachRoute(route) {
var options = self._views[route];
// View should know what its route is.
options.route = route;
var view = self._createView(options);
// Add view at route
self._server.addView(route, view);
});
};
/**
* Takes a resource configuration object and returns a resource instance
*/
OKCMS.prototype._createResource = function(options) {
options = options || {};
var resourceClass = options.resource;
// No resource? Bail!
if (!resourceClass) throw new Error('OKCMS: No resource class given');
// Default to 'select all' id
options.id = options.id || '*';
// Some dependency injection
options.db = this._db;
// Clean unpassed options
delete options.resource;
// Return resource instance
return resourceClass(options);
};
/**
* Takes a view configuration object and returns a view instance
*/
OKCMS.prototype._createView = function _createView(options) {
options = options || {};
var self = this;
var viewClass = options.view || OKView;
var template = this._templates.getTemplate(options.template);
var queryConfig = options.data || [];
// No template? Bail!
if (!template) throw new Error('OKCMS: No template "' + options.template + '"');
// Inject them dependencies
options.template = template;
options.meta = this._meta;
options.queries = this._createQueries(queryConfig);
// Clean options not passed to view
delete options.view;
// Return view instance
return viewClass(options);
};
/**
* Takes a query configuration and returns a list of queries
*/
OKCMS.prototype._createQueries = function(options) {
options = options || [];
var db = this._db;
if (!options.length)
options = [options];
return options.map(function(option) {
if (!option.name)
throw new Error('No document name provided to query');
option.id = option.id || '*';
return new OKQuery(db, {
name: option.name,
id: option.id
});
});
};
module.exports = {
createApp: function(options) {
return new OKCMS(options);
},
OKResource: OKResource,
OKView: OKView,
OKRestEndpoint: OKRestEndpoint
};
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