'use strict';

exports = module.exports = {
    verifyOwnership: verifyOwnership,
    getAll: getAll,
    get: get,
    add: add,
    del: del
};

var assert = require('assert'),
    BoxError = require('../boxerror.js'),
    HttpError = require('connect-lastmile').HttpError,
    HttpSuccess = require('connect-lastmile').HttpSuccess,
    tokens = require('../tokens.js');

function verifyOwnership(req, res, next) {
    assert.strictEqual(typeof req.user, 'object');
    assert.strictEqual(typeof req.params.id, 'string');

    tokens.get(req.params.id, function (error, result) {
        if (error) return next(BoxError.toHttpError(error));

        if (result.identifier !== req.user.id) return next(new HttpError(403, 'User is not owner'));

        req.token = result;

        next();
    });
}

function getAll(req, res, next) {
    assert.strictEqual(typeof req.user, 'object');

    tokens.getAllByUserId(req.user.id, function (error, result) {
        if (error) return next(BoxError.toHttpError(error));

        next(new HttpSuccess(200, { tokens: result }));
    });
}

function get(req, res, next) {
    assert.strictEqual(typeof req.user, 'object');
    assert.strictEqual(typeof req.token, 'object');

    next(new HttpSuccess(200, { token: req.token }));
}

function add(req, res, next) {
    assert.strictEqual(typeof req.user, 'object');
    assert.strictEqual(typeof req.body, 'object');

    if (typeof req.body.name !== 'string') return next(new HttpError(400, 'name must be string'));
    if ('expiresAt' in req.body && typeof req.body.expiresAt !== 'number') return next(new HttpError(400, 'expiresAt must be number'));

    const expiresAt = req.body.expiresAt || (Date.now() + (100 * 365 * 24 * 60 * 60 * 1000)); // forever - 100 years TODO maybe we should allow 0 or -1 to make that explicit

    tokens.add(tokens.ID_SDK, req.user.id, expiresAt, { name: req.body.name }, function (error, result) {
        if (error) return next(BoxError.toHttpError(error));

        next(new HttpSuccess(201, { token: result }));
    });
}

function del(req, res, next) {
    assert.strictEqual(typeof req.user, 'object');
    assert.strictEqual(typeof req.token, 'object');

    tokens.del(req.token.id, function (error) {
        if (error) return next(BoxError.toHttpError(error));

        next(new HttpSuccess(204, {}));
    });
}