//!javascript

Signal.connect("documentLoaded", function(wv, frame) {
    autofillForm(frame.document);
});

function fillUsername(doc, name, username) {
    var box = doc.querySelector('input[name="' + name + '"]');
    if (!box) {
        box = doc.querySelector("input[name*=user]");
    }
    if (!box) {
        box = doc.querySelector("input[name*=email]");
    }
    if (!box) {
        box = doc.querySelector("input[name*=account]");
    }
    if (!box) {
        box = doc.querySelector("input[type=email]");
    }
    if (box) {
        box.value = username;
    }
}

function fillPassword(doc, name, password) {
    var box = doc.querySelector('input[name="' + name + '"]');
    if (!box) {
        box = doc.querySelector("input[type=password]");
    }
    if (box) {
        box.value = password;
    }
}

function lastPassFind(url, callbacks) {
    var cmd = "lpass find " + url;
    system.spawn(cmd, {
        onStdout: function(line) {
            if (line.indexOf("Username: ") == 0) {
                callbacks.onGetUsername(line.substr(10));
            } else if (line.indexOf("Password: ") == 0) {
                callbacks.onGetPassword(line.substr(10));
            } else if (line.indexOf(': ') > -1) {
                var name = line.substring(0, line.indexOf(': '));
                callbacks.onGetFieldName(line, name);
            }
        },
    });
}

function autofillForm(doc) {
    var username, password;
    lastPassFind(tabs.current.uri, {
        onGetUsername: function (val) {
            username = val;
            fillUsername(doc, "", val);
        },
        onGetPassword: function (val) { 
            password = val;
            fillPassword(doc, "", val);
        },
        onGetFieldName: function (line, name) { 
            if (username && line.indexOf(username) > -1) {
                fillUsername(doc, name, username);
            }
            if (password && line.indexOf(password) > -1) {
                fillPassword(doc, name, password);
            }
        }
    });
}