(function(){
    "use strict";
    angular
        .module("app.repositories")
        .factory("repository.apiMediaUploader", mediaUploaderRepository);

    function mediaUploaderRepository($http, $q, webApi, IM, convertHelper, webApiConstants){

        return {
            uploadImage: uploadImage,
            uploadImageFormData:uploadImageFormData,
            uploadCareProviderLicense: uploadCareProviderLicense
        };

        function uploadImage(dataImage, thumb) {
            var imageUploadFileLimit = 1024 * 1024 * 25; // 25 MB
            var supportedImageMIMETypes = ["image/jpeg", "image/png", "image/jpg", "image/gif"];
            var formData = new FormData();
            var imgBlob = convertHelper.dataURIToBlob(dataImage);
            return $q(function (resolve, reject) {
                if (supportedImageMIMETypes.indexOf(imgBlob.type) > -1 && imgBlob.size <= imageUploadFileLimit) {
                    formData.append("file", imgBlob, convertHelper.renderImageName(imgBlob.type));
                    $http.post(webApiConstants.DOMAIN + '/api/v1/content/images', formData, {
                        "transformRequest": angular.identity,
                        "headers": {
                            'Content-Type': undefined
                        },
                        params: {"thumb": thumb}
                    }).success(function (postResult) {
                        resolve(postResult);
                    });
                }
                else {
                    reject(null);
                }
            });
        }

        function dataURIToBlob(dataURI) {
            var binary = atob(dataURI.split(',')[1]);
            var mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];
            var array = [];
            for (var i = 0; i < binary.length; i++) {
                array.push(binary.charCodeAt(i));
            }
            return new Blob([new Uint8Array(array)], {
                type: mimeString
            });
        }

        function uploadImageFormData(formData, thumb) {
            var imgBlob = formData;
            return $q(function (resolve, reject) {
                    $http.post(webApiConstants.DOMAIN + '/api/v1/content/images', imgBlob, {
                        "transformRequest": angular.identity,
                        "headers": {
                            'Content-Type': undefined
                        },
                        params: {"thumb": thumb}
                    }).success(function (postResult) {
                        resolve(postResult);
                    });
            });
        }

        function uploadCareProviderLicense(formData) {
            var imgBlob = formData;
            return $q(function (resolve, reject) {
                $http.post(webApiConstants.DOMAIN + '/api/v1/files/Post', imgBlob, {
                    "transformRequest": angular.identity,
                    "headers": {
                        'Content-Type': undefined
                    }
                }).success(function (postResult) {
                    resolve(postResult);
                });
            });
        }
    }

    // IoC container.
    mediaUploaderRepository.$inject = [
        "$http",
        "$q",
        "webApi",
        "helpers.internalMessages",
        "helpers.convert",
        "webApi.constants"
    ];

})();