paulhitz/yet-another-rest-client

/**
 * Various helper functions for the History functionality.
 */
clientApp.service('history', function(GENERAL_CONSTANTS) {
    var helper = this;

    /**
     * Retrieve all stored history requests from Chrome Storage.
     */
    helper.get = function(callback) {
        chrome.storage.local.get(null, function (history) {
            //Add each history object to an array.
            var values = [];
            for (var key in history) {
                var entry = history[key];
                if (helper.isHistoryKey(key)) {
                    //Add the key to the object so we can identify it later.
                    entry['key'] = key;

                    //Fix up the date format to enable simpler sorting and formatting.
                    entry['date'] = new Date(entry['date']);
                    values.push(entry);
                }
            }

            if (typeof(callback) === "function") {
                callback(values);
            }
        });
    };

    /**
     * Save the provided data using Chrome Storage. Supports objects.
     */
    helper.set = function(data) {
        var key = GENERAL_CONSTANTS.HISTORY_KEY_FORMAT + Date.now();
        var keyValue = {};
        keyValue[key] = data;
        chrome.storage.local.set(keyValue);
    };

    /**
     * Delete request history from Chrome Storage based on ID.
     */
    helper.delete = function(id, callback) {
        chrome.storage.local.remove(id, function() {
            if (typeof(callback) === "function") {
                callback();
            }
        });
    };

    /**
     * Delete all request history. Since Chrome LOCAL Storage is only used for the request history,
     * we can simply clear it rather than specifying individual entries.
     */
    helper.deleteAll = function(callback) {
        chrome.storage.local.clear(function() {
            if (typeof(callback) === "function") {
                callback();
            }
        });
    };

    /**
     * Ensure that the specified key is in the correct format for a key used to store history objects.
     */
    helper.isHistoryKey = function(key) {
        if (key.indexOf(GENERAL_CONSTANTS.HISTORY_KEY_FORMAT) > -1) {
            return true;
        }
    };

    /**
     * Convert the Request Headers into a format that the tool can use.
     */
    helper.convertRequestHeaders = function(requestHeaders) {
        var headers = {};
        var id = Date.now();
        for (var name in requestHeaders) {
            id++;
            headers[id] = {'id': id, 'name': name, 'value': requestHeaders[name]};
        }
        return headers;
    };
});