var mongoose    = require('mongoose');
var log         = require('winston').loggers.get('main');
var tcrud       = require('../../lib/node-ff-tcrud');

module.exports = {
	setup: setup
};

function setup(tcrud,tcrudModel) {
	
	var mongoUrl = 'mongodb://localhost:27017/blog';
	var mongoOptions = {
		db: {
			fsync: false,
			journal: false,
			native_parser: true,
			forceServerObjectId: true
		},
		server: {
			poolSize: 4,
			socketOptions: {
				connectTimeoutMS: 500,
				keepAlive: 1,
				auto_reconnect: true
			}
		}
	};
	
	log.info('Connecting to: ' + mongoUrl);
	var conn = mongoose.createConnection(mongoUrl,mongoOptions);
	
	tcrud.plugin.backend.mongoose.registrate('mongoose/blog',conn);
	conn.model('blog-state', modelSchemaBlogState, 'blog_state');
	
	var tc = tcrud.config;
	var crudAdmin = tc.createTEntityNode(tcrudModel,'admin');
	crudAdmin.troles.push('admin');
	
	var crudAdminModels = tcrud.plugin.backend.mongoose.buildTEntityModels(conn,crudAdmin);
	log.info('crud admin models created: '+crudAdminModels.length);
	crudAdminModels.forEach(function(model) {
		model.tmeta.tmodel.tbackend = 'mongoose/blog';
	});
}

var modelMetaBlogState = {
	name: {
		type: String,
		trim: true,
		index: { unique: true },
		tfield: {
			tvalidate: { io: 'string' },
		},
	},
	type: {
		type: String,
		trim: true,
		index: { unique: false },
		tfield: {
			tvalidate: { io: 'string' },
		},
	},
	value: {
		type: String,
		trim: true,
		tfield: {
			xtype: 'textarea',
			tvalidate: { io: 'string' },
		},
	},
	description: {
		type: String,
		trim: true,
		tfield: {
			ttype: 'textarea',
			tvalidate: { io: 'string' },
		},
	},
	changed_date: {
		type: Date,
		default: Date.now,
		tfield: {
			tlist: { tenable: false },
		},
	},
	created_date: {
		type: Date,
		default: Date.now,
		tfield: {
			tlist: { tenable: false },
		},
	}
};

var modelSchemaBlogState = new mongoose.Schema(modelMetaBlogState);
modelSchemaBlogState.statics = tcrud.plugin.backend.mongoose.buildStaticsModelValidated(modelMetaBlogState,modelSchemaBlogState, {
	findLastChangedLimit5: function (callback) {
		log.debug(modelBackend+'.findLastChangedLimit5');
		this.find({}).sort('-changed_date').limit(5).exec(callback);
	},
	findOneByName: function (name, callback) {
		log.debug(modelBackend+'.findByName name='+name);
		this.findOne({name:name}).exec(callback);
	},
	ensureExcists: function (name, type, defaultValue, description, callback) {
		this.findOneByName(name, function(err, xprop) {
			if (err) {
				callback(err);
				return;
			}
			if (xprop == null) {
				log.debug(modelBackend+'.getByName create name='+name+' defaultValue='+defaultValue);
				var model = mongoose.model('blog-state');
				xprop = new model();
				xprop.name = name;
				xprop.type = type;
				xprop.value = defaultValue;
				xprop.description = description;
				xprop.save(function(err,xprop) {
					if (callback) {
						callback(err, xprop);
					}
				});
			} else {
				log.debug(modelBackend+'.getByName fetched name='+name);
				if (callback) {
					callback(null, xprop);
				}
			}
		});
	},
	setByName: function (name, value, callback) {
		this.findOneByName(name, function(err, xprop) {
			if (err) { throw err }
			log.debug(modelBackend+'.setByName name='+name+' valueNew='+value+' valueOld='+xprop.value);
			xprop.value = value;
			xprop.save(function(err) {
				callback(err, xprop);
			});
		});
	},
	incByName: function (name, callback) {
		this.findOneByName(name, function(err, xprop) {
			if (err) { throw err }
			xprop.value++;
			log.debug(modelBackend+'.incByName name='+name+' value='+xprop.value);
			xprop.save(function(err) {
				callback(err, xprop);
			});
		});
	},
});