/// <reference path="../typings/node/node.d.ts" />
/// <reference path="../typings/restify/restify.d.ts" />
import restify = require('restify');
import _client = require('./client');
import APIError = require('./APIError');
import _modules = require('./admin/modules');
import _users = require('./admin/users');

export var client: restify.Client = _client;
export var users = _users;
export var accounts = require('./admin/accounts');
export var modules = _modules;
export var logs = require('./admin/logs');

export class LoginResult {
    accessToken: string;
    user: _users.User;
    expiration: Date;
}

export class Authorization {
    user: _users.User;
    expiration: Date;
}

/*
 Login a a user/password combination and return an access token and user data.
 */
export function login(name: string, password: string, callback: (err?: APIError, result?: LoginResult) => void) {

    try {

        var params = {
            name: name,
            password: password
        };

        client.post('/v1/login', params, function(err, req: restify.Request, res: restify.Response, result: any) {

            if (err)                                //  first, check for an exception
                callback(err);
            else if (!result)                       //  then check for a missing result
                callback(new APIError());
            else
                callback(null, result.data);        //  finally, return the payload
        });
    } catch(err) {
        callback(err);
    }
}

/*
 Login a a user/password combination and return an access token and user data.
 */
export function authorize(accessToken: string, callback: (err?: APIError, result?: Authorization) => void) {

    try {

        var params = {
            accessToken: accessToken
        };

        client.post('/v1/authorize', params, function(err, req: restify.Request, res: restify.Response, result: any) {

            if (err)                                //  first, check for an exception
                callback(err);
            else if (!result)                       //  then check for a missing result
                callback(new APIError());
            else
                callback(null, result.data);        //  finally, return the payload
        });
    } catch(err) {
        callback(err);
    }
}

export function hasPermission(accessToken: string, moduleId: number, permission: string | number, callback: (err?: APIError, result?: boolean) => void) {

    modules.getAll(function(err: APIError, mods: Array<_modules.Module>) {

        if (err)
            callback(err);
        else {

            authorize(accessToken, function(err?: APIError, authorization?: Authorization) {

                if (err)
                    callback(err);
                else if (!authorization || !authorization.user || !authorization.user.roles)
                    callback(null, false);
                else {

                    for (var r = 0; r < authorization.user.roles.length; r++) {

                        for (var p = 0; p < authorization.user.roles[r].permissions.length; p++) {

                            if (authorization.user.roles[r].moduleId == moduleId) {

                                if (typeof permission == 'string') {

                                    if (authorization.user.roles[r].permissions[p].name == permission) {
                                        callback(null, true);
                                        return;
                                    }
                                } else {

                                    if (authorization.user.roles[r].permissions[p].id == permission) {
                                        callback(null, true);
                                        return;
                                    }
                                }
                            }
                        }
                    }

                    callback(null, false);
                }
            });
        }
    });
}

export module analytics {
    export var attributes = require('./analytics/attributes');
    export var query = require('./analytics/query');
}

export module insights {
    export var attributes = require('./insights/attributes');
    export var query = require('./insights/query');
}