var app = Application("Safari")

function newWorkspaceWindow(){
    app.activate()
    app.Document().make()
    // delay(1)

    // return window id
    return newWindowID()
}

function newWindowID(){
    
    var windows = getAllWindows()
    if(index < 0){
      index = windows.length + index
    }
    return app.windows.byId(windows[index]).id()
}

/**

    @returns {Array} List of objects in the form {title: title, url:url}

*/
function tabsInWindowWithId(id){
    var urls = []
    if(!sys.windowExistWithId("Safari", id)){
      return urls
    }
    var win = app.windows.byId(id)

    for (var i = 0; i < win.tabs.length; i++) {
        var url = win.tabs.at(i).url()
        var name = win.tabs.at(i).name()
        urls.push({name:name, url:url})
    }
    return urls
}


function getAllWindows(){
    var windows = []
    for(var i = 0; i < app.windows().length; i++){        
        windows.push(app.windows.at(i).id())
    }
    return windows
    // return windows.sort(function(a, b){return a-b})
}

function tabsInWindowAtIndex(index) {
    var win
    for(var i = 0; i < app.windows().length; i++){        
        if(i == index){
            win = app.windows.at(i)
        }                
    }

    var tabs = []
    for (var i = 0; i < win.tabs.length; i++) {
        var url = win.tabs.at(i).url()
        var title = win.tabs.at(i).name()
        tabs.push({title: title, url: url})
    }
    return tabs
}

var tabs = tabsInWindowAtIndex(0)
for (var i = 0; i < tabs.length; i++) {
    console.log(tabs[i].title, tabs[i].url)
}

// console.log(getAllWindows())
// console.log(newWorkspaceWindow())