var halson = require('halson');

var embed = halson({
        title: "joyent / node",
        description: "evented I/O for v8 javascript"
    })
    .addLink('self', '/joyent/node')
    .addLink('author', {
        href: '/joyent',
        title: 'Joyent'
    });

var resource = halson({
        title: "john doe",
        username: "doe",
        emails: [
            "john.doe@example.com",
            "doe@example.com"
        ]
    })
    .addLink('self', '/doe')
    .addEmbed('starred', embed);

console.log(resource.title);
console.log(resource.emails[0]);
console.log(resource.getLink('self'));
console.log(resource.getEmbed('starred'));
console.log(JSON.stringify(resource));

// empty HAL+JSON Resource Object
var resource = halson();

// resource from a serialized data
var resource = halson('{title:"Lorem Ipsum",_links:{self:{href:"/ipsum"}}');

// resource from an Object
resource = halson({
    _links: {
        self: {
            href: {"/ipsum"}
        }
    },
    title: "Lorem Ipsum"
});

// resource from another resource (no-op)
var resourceX = halson(resource);
console.log(resource === resourceX); // true

var data = {
    _links: {
        self: {href: '/doe'},
        related: [
            {href: 'http://doe.com'},
            {href: 'https://twitter.com/doe'}
        ]
    }
}

var resource = halson(data);
console.log(resource.listLinkRels()); // ['self', 'related']

var data = {
    _embedded: {
        starred: {
            _links: {
                self: {href: '/joyent/node'}
            }
            title: "joyent / node",
            description: "evented I/O for v8 javascript"
        }
    }
}

var resource = halson(data);
console.log(resource.listEmbedRels()); // ['starred']

var twitterLinks = resource.getLinks('related', function(item) {
    return item.name === "twitter";
});

var firstRelatedLink = resource.getLink('related');

var embeds = resource.getEmbeds('starred');

var nodeProject = resource.getEmbed('starred', function(embed) {
    return embed.getLink('self', {}).href === '/joyent/node';
});

resource
    .addLink('related', 'http://doe.com')
    .addLink('related', {
        href: 'https://twitter.com/doe',
        name: 'twitter'
    });

var embed = {
    _links: {
        self: {href: '/joyent/node'}
    },
    title: "joyent / node"
}
resource.addEmbed('starred', embed);

var embed = {
    _links: {
        self: {href: '/joyent/node'}
    },
    title: "joyent / node"
};
resource.addEmbed('starred', embed); // add embed

var embed2 = {
    _links: {
        self: {href: '/joyent/node'}
    },
    title: "joyent / node"
};
resource.insertEmbed('starred', 0, embed2); // insert new embed before first item

// remove links with relation 'related' and name 'twitter'
resource.removeLinks('related', function(link) {
    return link.name === "twitter";
});

// remove embedded resources with relation 'starred' and self-link '/koajs/koa'
resource.removeLinks('starred', function(embed) {
    return embed.getLink('self', {}).href === '/koajs/koa';
});