'use strict'
var baseAPIURL = "https://v1fdqlovbi.execute-api.us-west-2.amazonaws.com/dev/";
var poolData = { UserPoolId: 'us-west-2_SboavMmyJ', ClientId: '3eleu306105d5ic4u6bk6utkvq' };
var cognitoCredentials = { IdentityPoolId: 'us-west-2:51f010d3-8fd2-4f7e-b062-1a305c0d9e17' };
var token;

d("#new").innerHTML = '<a class="pure-button" onclick="new_item();">new</a>';

function xhr(payload, url, xtoken, hash, onComplete) {
    var xhr=j();
    if(payload) {
        xhr.open("PUT", url);
        xhr.setRequestHeader("Content-Type", "application/json");
    } else {
        xhr.open("GET", url);
    }
    if(xtoken) {
        xhr.withCredentials = true;
        xhr.setRequestHeader("Authorization", xtoken);
    }
    if(hash) {
        xhr.integrity = "ni:///sha-256;" + hash + "";
    }
    xhr.onreadystatechange=function() {
        if(xhr.readyState==4)
            if(xhr.status >= 200 && xhr.status < 400)
                onComplete(xhr.responseText);
            else
                onComplete(null);
    }
    if(payload) {
        xhr.send(JSON.stringify(payload));
    } else {
        xhr.send();
    } 
}

function checkUser() {
    var userPool = new AWSCognito.CognitoIdentityServiceProvider.CognitoUserPool(poolData);
    var cognitoUser = userPool.getCurrentUser();
    if (cognitoUser) {
        cognitoUser.getSession(function (err, session) {
            token = session.getIdToken().getJwtToken();
            cognitoCredentials["Logins"] = { "cognito-idp.us-west-2.amazonaws.com/us-west-2_SboavMmyJ": token };
        });
        d("#login").innerHTML = '<a class="pure-button" onclick="new_logout();">' + cognitoUser.getUsername() + '</a>';
    } else {
        d("#login").innerHTML = '<a class="pure-button" onclick="new_login();">login</a>';
    }

    AWSCognito.config.region = "us-west-2";
    AWSCognito.config.credentials = new AWSCognito.CognitoIdentityCredentials(cognitoCredentials);
    AWSCognito.config.credentials.get(function () {})
}

function tagColor(tag) {
    switch(tag) {
        case "js":
        case "javascript":
            return "post-category-js";
        case "fun":
        case "editor":
        case "python":
            return "post-category-pure";
        case "design":
        case "swag":
            return "post-category-design";
        default:
    }
    return "post-category-yui";
}

function getPosts(postId) {
    var URL = baseAPIURL;
    if(postId) {
        URL += postId;
        console.log(URL);
    }
    xhr(null, URL, token, null, function(results) {
        if(!results) return console.log("error");
        var response = JSON.parse(results);
        var data = response["Items"];
        d("#subhead-category").innerHTML = 'Interesting Stuff ....';
        d("#posts").innerHTML = '';
        for (var i = 0; i < data.length; i++) {
            d("#posts").innerHTML += '<section class="post"><header class="post-header"><h2 class="post-title"><a href="/#' + data[i]["postId"] + '">'+data[i]["title"]+'</a></h2><p class="post-meta">By <a class="post-author">'+data[i]["author"]+'</a> under <a class="post-category '+tagColor(data[i]["tags"])+'" >'+data[i]["tags"]+'</a><a class="fb-like" data-href="http://www.joeslife.net/#'+ data[i]["postId"] +'" data-layout="button_count" data-action="like" data-size="small" data-show-faces="true" data-share="true"></a></p></header><div class="post-description"><p>'+data[i]["content"]+'</p></div></section>'
        }
        if(postId)
            d("#footer").innerHTML = '<div class="fb-comments" data-href="http://www.joeslife.net/#'+ postId +'" data-width="100%" data-numposts="10"></div>';
        else
            d("#footer").innerHTML = '';
        FB.XFBML.parse();
    });
}

function new_login() {
    xhr(null, "/login.html", token, "fakehashshouldnotwork", function(results) {
        if(!results) return console.log("error");
        d("#activity").innerHTML = results;
    })
}

function new_logout() {
    xhr(null, "/logout.html", token, "fakehashshouldnotwork", function(results) {
        if(!results) return console.log("error");
        d("#activity").innerHTML = results;
    })
}

function myLogout() {
    var userPool = new AWSCognito.CognitoIdentityServiceProvider.CognitoUserPool(poolData);
    var cognitoUser = userPool.getCurrentUser();
    if (cognitoUser) {
        cognitoUser.signOut();
    }
    cancelEditor();
    checkUser();
}

function new_item() {
    var userPool = new AWSCognito.CognitoIdentityServiceProvider.CognitoUserPool(poolData);
    var cognitoUser = userPool.getCurrentUser();

    xhr(null, "/editor.html", token, "fakehashshouldnotwork", function(results) {
        if(!results) return console.log("error");
        d("#activity").innerHTML = results;
        if(cognitoUser)
            d("#author").innerHTML = cognitoUser.getUsername();
    })
}

function myLogin() {
    var authenticationData = {
        Username: d('#user').value,
        Password: d('#pass').value,
    };
    var authenticationDetails = new AWSCognito.CognitoIdentityServiceProvider.AuthenticationDetails(authenticationData);
    var userPool = new AWSCognito.CognitoIdentityServiceProvider.CognitoUserPool(poolData);
    var userData = {
        Username: authenticationData.Username,
        Pool: userPool,
    };
    var cognitoUser = new AWSCognito.CognitoIdentityServiceProvider.CognitoUser(userData);
    cognitoUser.authenticateUser(authenticationDetails, {
        onSuccess: function (result) {
            cancelEditor();
            checkUser();
        },

        onFailure: function (err) {
            alert(err);
        },

        mfaRequired: function(codeDeliveryDetails) {
            cognitoUser.sendMFACode(mfaCode, this)
        },
        
        newPasswordRequired: function(userAttributes, requiredAttributes) {
            delete userAttributes.email_verified;
            try {
                var newPassword = d("#newpassinput").value;
            } catch(e) {
                d("#newpass").innerHTML = '<input type="password" placeholder="new password" id="newpassinput">';
            }
            if (newPassword)
                cognitoUser.completeNewPasswordChallenge(newPassword, userAttributes, this);
        }
    });
}

function cancelEditor() {
    d("#activity").innerHTML = '';
}

function post_put() {
    if(!token) return;
    var newPost = {
        "title": d("#title").textContent,
        "tags": d("#tags").textContent,
        "author": d("#author").textContent,
        "content": d("#content").textContent,
    }
    xhr(newPost, baseAPIURL + "posts", token, null, function(results) {
        cancelEditor();
        if(results) getPosts(null);
    });
}

function introspect() {
    xhr(null, baseAPIURL + "introspect", token, null, function(results){console.log(JSON.stringify(results))} );
}

window.onload=function(e) {
    checkUser();
    introspect();
    if(window.location.hash) {
        var postId = window.location.hash.substring(1);
        getPosts(postId);
    } else {
        getPosts(null);
    }
};