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<script>
OSCEUserSpaces = {
    storeKey: "osce-user-spaces"
    , rootNode: "#main-content div:nth-child(1) div:nth-child(1)" 
    , webServiceUrl : "https://communities.osce.org/rest/api/space?expand=icon"
    , init() {
        const cached = localStorage.getItem( this.storeKey );
        cached && this.draw( JSON.parse( cached ));
        this.read();
    }
    , async read() {
        let response = await fetch(this.webServiceUrl);
        let data = await response.text();
        if( data ) {
            try{
                this.draw( JSON.parse( data ) );
                localStorage.setItem( this.storeKey, data );
            }
            catch(e) {
                console.warn(e)
            }
        }
    }
    , draw( result ) {
        const spaces = result.results.filter( space => ( space.type == 'global' && ! ["WTOC","OBWS","CTHBSOURCE"].includes( space.key ) ) );
        const root = document.querySelector( this.rootNode );
        const main = document.createElement( "div");
        const oldNode = document.getElementById( this.storeKey);
        oldNode && oldNode.remove();
        main.id = this.storeKey;
        html = `
            <section spaces>
                <main spaces>
                    <div header>Your Communities</div>
        `;
        if( spaces.length > 0) {
            spaces.forEach( space => {
                html += `
                    <a href="https://communities.osce.org/display/${space.key}" class="grow-on-hover">
                        <div space>
                            <img src="https://communities.osce.org${space.icon.path}" />
                            <div name>${space.name}</div>
                        </div>
                    </a>
                `;
            });
        }
        else {
                html += `
                    <a href="https://communities.osce.org/login.action" class="grow-on-hover">
                        <div space>
                            <div filler></div>
                            <div name>Login to access your communities</div>
                        </div>
                    </a>
                `;

        }
        html += `
                </main>
            </section>
        `;
        main.innerHTML = html;
        root.appendChild( main );
    }
}
OSCEUserSpaces.init();
</script>