diff --git a/nextcloud_backup/backend/package.json b/nextcloud_backup/backend/package.json
index 859090d..b8d7852 100644
--- a/nextcloud_backup/backend/package.json
+++ b/nextcloud_backup/backend/package.json
@@ -15,14 +15,11 @@
     "watch": "concurrently -k -p \"[{name}]\" -n \"TypeScript,Node\" -c \"cyan.bold,green.bold\" \"pnpm run watch-ts\" \"pnpm run watch-node\""
   },
   "dependencies": {
-    "@fortawesome/fontawesome-free": "6.1.2",
     "@typescript-eslint/eslint-plugin": "^5.38.0",
     "app-root-path": "3.0.0",
-    "bootstrap": "5.2.0",
     "cookie-parser": "1.4.6",
     "cron": "2.1.0",
     "debug": "4.3.4",
-    "ejs": "3.1.8",
     "errorhandler": "^1.5.1",
     "express": "4.18.1",
     "form-data": "4.0.0",
@@ -31,6 +28,7 @@
     "jquery": "3.6.0",
     "luxon": "3.0.1",
     "morgan": "1.10.0",
+    "swagger-ui-express": "^4.5.0",
     "webdav": "4.10.0",
     "winston": "3.8.1"
   },
diff --git a/nextcloud_backup/backend/pnpm-lock.yaml b/nextcloud_backup/backend/pnpm-lock.yaml
index 5d8acaa..519bc79 100644
--- a/nextcloud_backup/backend/pnpm-lock.yaml
+++ b/nextcloud_backup/backend/pnpm-lock.yaml
@@ -30,6 +30,7 @@ specifiers:
   luxon: 3.0.1
   morgan: 1.10.0
   nodemon: ^2.0.7
+  swagger-ui-express: ^4.5.0
   ts-node: ^10.9.1
   typescript: ^4.8.3
   webdav: 4.10.0
@@ -52,6 +53,7 @@ dependencies:
   jquery: 3.6.0
   luxon: 3.0.1
   morgan: 1.10.0
+  swagger-ui-express: 4.5.0_express@4.18.1
   webdav: 4.10.0_debug@4.3.4
   winston: 3.8.1
 
@@ -2222,6 +2224,20 @@ packages:
     engines: {node: '>= 0.4'}
     dev: true
 
+  /swagger-ui-dist/4.14.0:
+    resolution: {integrity: sha512-TBzhheU15s+o54Cgk9qxuYcZMiqSm/SkvKnapoGHOF66kz0Y5aGjpzj5BT/vpBbn6rTPJ9tUYXQxuDWfsjiGMw==}
+    dev: false
+
+  /swagger-ui-express/4.5.0_express@4.18.1:
+    resolution: {integrity: sha512-DHk3zFvsxrkcnurGvQlAcLuTDacAVN1JHKDgcba/gr2NFRE4HGwP1YeHIXMiGznkWR4AeS7X5vEblNn4QljuNA==}
+    engines: {node: '>= v0.10.32'}
+    peerDependencies:
+      express: '>=4.0.0'
+    dependencies:
+      express: 4.18.1
+      swagger-ui-dist: 4.14.0
+    dev: false
+
   /table/6.8.0:
     resolution: {integrity: sha512-s/fitrbVeEyHKFa7mFdkuQMWlH1Wgw/yEXMt5xACT4ZpzWFluehAxRtUUQKPuWhaLAWhFcVx6w3oC8VKaUfPGA==}
     engines: {node: '>=10.0.0'}
diff --git a/nextcloud_backup/backend/src/app.ts b/nextcloud_backup/backend/src/app.ts
index 5a17b30..bde3457 100644
--- a/nextcloud_backup/backend/src/app.ts
+++ b/nextcloud_backup/backend/src/app.ts
@@ -5,10 +5,9 @@ import cookieParser from "cookie-parser";
 import fs from "fs"
 import newlog from "./config/winston.js"
 import * as statusTools from "./tools/status.js"
-import * as hassioApiTools from "./tools/hassioApiTools.js"
 import * as settingsTools from "./tools/settingsTools.js"
 import cronTools from "./tools/cronTools.js"
-import webdav from "./tools/webdavTools.js";
+import webdav from "./services/webdavService.js";
 
 import apiRouter from "./routes/api.js"
 import { fileURLToPath } from "url";
@@ -71,15 +70,17 @@ if (!fs.existsSync("/data")) fs.mkdirSync("/data");
 statusTools.init();
 newlog.info("Satus : \x1b[32mGo !\x1b[0m");
 
-hassioApiTools.getSnapshots().then(
-    () => {
-        newlog.info("Hassio API : \x1b[32mGo !\x1b[0m");
-    },
-    (err) => {
-        newlog.error("Hassio API : \x1b[31;1mFAIL !\x1b[0m");
-        newlog.error("... " + err);
-    }
-);
+
+// TODO Change this
+// hassioApiTools.getSnapshots().then(
+//     () => {
+//         newlog.info("Hassio API : \x1b[32mGo !\x1b[0m");
+//     },
+//     (err) => {
+//         newlog.error("Hassio API : \x1b[31;1mFAIL !\x1b[0m");
+//         newlog.error("... " + err);
+//     }
+// );
 
 webdav.confIsValid().then(
     () => {
diff --git a/nextcloud_backup/backend/src/services/haOsService.ts b/nextcloud_backup/backend/src/services/haOsService.ts
new file mode 100644
index 0000000..75ef2be
--- /dev/null
+++ b/nextcloud_backup/backend/src/services/haOsService.ts
@@ -0,0 +1,503 @@
+import fs from "fs";
+
+import FormData from "form-data";
+import got, { OptionsOfJSONResponseBody, Response } from "got";
+import stream from "stream";
+import { promisify } from "util";
+import logger from "../config/winston.js";
+import messageManager from "../tools/messageManager.js";
+import * as settingsTools from "../tools/settingsTools.js";
+import * as statusTools from "../tools/status.js";
+import { NewPartialBackupPayload } from "../types/services/ha_os_payload.js";
+import {
+  AddonModel,
+  BackupDetailModel,
+  BackupModel,
+  CoreInfoBody
+} from "../types/services/ha_os_response.js";
+import { Status } from "../types/status.js";
+
+const pipeline = promisify(stream.pipeline);
+
+const token = process.env.SUPERVISOR_TOKEN;
+
+// Default timeout to 90min
+const create_snap_timeout = process.env.CREATE_BACKUP_TIMEOUT
+  ? parseInt(process.env.CREATE_BACKUP_TIMEOUT)
+  : 90 * 60 * 1000;
+
+function getVersion(): Promise<Response<CoreInfoBody>> {
+  return got<CoreInfoBody>("http://hassio/core/info", {
+    headers: { authorization: `Bearer ${token}` },
+    responseType: "json",
+  }).then(
+    (result) => {
+      return result;
+    },
+    (error) => {
+      messageManager.error(
+        "Fail to fetch Home Assistant version",
+        error?.message
+      );
+      logger.error(`Fail to fetch Home Assistant version`);
+      logger.error(error);
+      return error;
+    }
+  );
+}
+
+function getAddonList(): Promise<Response<{ addons: AddonModel[] }>> {
+  const option: OptionsOfJSONResponseBody = {
+    headers: { authorization: `Bearer ${token}` },
+    responseType: "json",
+  };
+  return got<{ addons: AddonModel[] }>("http://hassio/addons", option).then(
+    (result) => {
+      result.body.addons.sort((a, b) => {
+        const textA = a.name.toUpperCase();
+        const textB = b.name.toUpperCase();
+        return textA < textB ? -1 : textA > textB ? 1 : 0;
+      });
+      return result;
+    },
+    (error) => {
+      messageManager.error("Fail to fetch addons list", error?.message);
+      logger.error(`Fail to fetch addons list (${error?.message})`);
+      logger.error(error);
+      return error;
+    }
+  );
+}
+
+function getAddonToBackup() {
+  const excluded_addon = settingsTools.getSettings().exclude_addon;
+  return getAddonList().then((response) => {
+    const slugs: string[] = [];
+    for (const addon of response.body.addons) {
+      if (!excluded_addon.includes(addon.slug)) slugs.push(addon.slug);
+    }
+    logger.debug("Addon to backup:");
+    logger.debug(slugs);
+    return slugs;
+  });
+}
+
+function getFolderList() {
+  return [
+    {
+      name: "Home Assistant configuration",
+      slug: "homeassistant",
+    },
+    {
+      name: "SSL",
+      slug: "ssl",
+    },
+    {
+      name: "Share",
+      slug: "share",
+    },
+    {
+      name: "Media",
+      slug: "media",
+    },
+    {
+      name: "Local add-ons",
+      slug: "addons/local",
+    },
+  ];
+}
+
+function getFolderToBackup() {
+  const excluded_folder = settingsTools.getSettings().exclude_folder;
+  const all_folder = getFolderList();
+  const slugs = [];
+  for (const folder of all_folder) {
+    if (!excluded_folder.includes(folder.slug)) slugs.push(folder.slug);
+  }
+  logger.debug("Folders to backup:");
+  logger.debug(slugs);
+  return slugs;
+}
+
+function getBackups(): Promise<Response<{ backups: BackupModel[] }>> {
+  const option: OptionsOfJSONResponseBody = {
+    headers: { authorization: `Bearer ${token}` },
+    responseType: "json",
+  };
+  return got<{ backups: BackupModel[] }>("http://hassio/backups", option).then(
+    (result) => {
+      return result;
+    },
+    (error) => {
+      messageManager.error("Fail to fetch Hassio backups", error?.message);
+      return error;
+    }
+  );
+}
+
+function downloadSnapshot(id: string): Promise<string> {
+  logger.info(`Downloading snapshot ${id}...`);
+  if (!fs.existsSync("./temp/")) {
+    fs.mkdirSync("./temp/");
+  }
+  const tmp_file = `./temp/${id}.tar`;
+  const stream = fs.createWriteStream(tmp_file);
+  const status = statusTools.getStatus();
+  status.status = "download";
+  status.progress = 0;
+  statusTools.setStatus(status);
+  const option = {
+    headers: { Authorization: `Bearer ${token}` },
+  };
+
+  return pipeline(
+    got.stream
+      .get(`http://hassio/backups/${id}/download`, option)
+      .on("downloadProgress", (e) => {
+        const percent = Math.round(e.percent * 100) / 100;
+        if (status.progress !== percent) {
+          status.progress = percent;
+          statusTools.setStatus(status);
+        }
+      }),
+    stream
+  ).then(
+    () => {
+      logger.info("Download success !");
+      status.progress = 1;
+      statusTools.setStatus(status);
+      logger.debug(
+        "Snapshot dl size : " + fs.statSync(tmp_file).size / 1024 / 1024
+      );
+      return tmp_file;
+    },
+    (reason) => {
+      fs.unlinkSync(tmp_file);
+      messageManager.error(
+        "Fail to download Home Assistant backup",
+        reason.message
+      );
+      return reason;
+    }
+  );
+}
+
+function delSnap(id: string): Promise<Response<string>> {
+  const option = {
+    headers: { authorization: `Bearer ${token}` },
+  };
+  return got.delete(`http://hassio/backups/${id}`, option).then(
+    (result) => {
+      return result;
+    },
+    (reason) => {
+      messageManager.error(
+        "Fail to delete Homme assistant backup detail.",
+        reason.message
+      );
+      logger.error("Fail to retrive Homme assistant backup detail.");
+      logger.error(reason);
+      return reason;
+    }
+  );
+}
+
+function checkSnap(id: string): Promise<Response<BackupDetailModel>> {
+  const option: OptionsOfJSONResponseBody = {
+    headers: { authorization: `Bearer ${token}` },
+    responseType: "json",
+  };
+  return got<BackupDetailModel>(
+    `http://hassio/backups/${id}/info`,
+    option
+  ).then(
+    (result) => {
+      logger.info("Backup found !");
+      logger.debug(`Backup size: ${result.body.size}`);
+      return result;
+    },
+    (reason) => {
+      messageManager.error(
+        "Fail to retrive Homme assistant backup detail.",
+        reason.message
+      );
+      logger.error("Fail to retrive Homme assistant backup detail");
+      logger.error(reason);
+      return reason;
+    }
+  );
+}
+
+function createNewBackup(
+  name: string,
+  addonSlugs: string[],
+  folders: string[]
+): Promise<Response<{ slug: string }>> {
+  const status = statusTools.getStatus();
+  status.status = "creating";
+  status.progress = -1;
+  statusTools.setStatus(status);
+  logger.info("Creating new snapshot...");
+  const body: NewPartialBackupPayload = {
+    name: name,
+    addons: addonSlugs,
+    folders: folders,
+  };
+
+  const password_protected = settingsTools.getSettings().password_protected;
+  logger.debug(`Is password protected ? ${password_protected}`);
+  if (password_protected === "true") {
+    body.password = settingsTools.getSettings().password_protect_value;
+  }
+  const option: OptionsOfJSONResponseBody = {
+    headers: { authorization: `Bearer ${token}` },
+    responseType: "json",
+    timeout: {
+      response: create_snap_timeout,
+    },
+    json: body,
+  };
+  return got
+    .post<{ slug: string }>(`http://hassio/backups/new/partial`, option)
+    .then(
+      (result) => {
+        logger.info(`Snapshot created with id ${result.body.slug}`);
+        return result;
+      },
+      (reason) => {
+        messageManager.error("Fail to create new backup.", reason.message);
+        logger.error("Fail to create new backup");
+        logger.error(reason);
+        return reason;
+      }
+    );
+}
+
+function clean(backups: BackupModel[]) {
+  const promises = [];
+  let limit = settingsTools.getSettings().auto_clean_local_keep;
+  if (limit == null) {
+    limit = 5;
+  }
+  if (backups.length < limit) {
+    return;
+  }
+  backups.sort((a, b) => {
+    return a.date < b.date ? 1 : -1;
+  });
+  const toDel = backups.slice(limit);
+  for (const i of toDel) {
+    promises.push(delSnap(i.slug));
+  }
+  logger.info("Local clean done.");
+  return Promise.allSettled(promises).then((values) => {
+    let errors = false;
+    for (const val of values) {
+      if (val.status == "rejected") {
+        messageManager.error("Fail to delete backup", val.reason);
+        logger.error("Fail to delete backup");
+        logger.error(val.reason);
+        errors = true;
+      }
+    }
+    if (errors) {
+      messageManager.error("Fail to clean backups in Home Assistant");
+      logger.error("Fail to clean backups in Home Assistant");
+      return Promise.reject();
+    }
+  });
+}
+
+function uploadSnapshot(path: string) {
+  return new Promise((resolve, reject) => {
+    const status = statusTools.getStatus();
+    status.progress = 0;
+    statusTools.setStatus(status);
+    logger.info("Uploading backup...");
+    const stream = fs.createReadStream(path);
+    const form = new FormData();
+    form.append("file", stream);
+
+    const options = {
+      body: form,
+      headers: { authorization: `Bearer ${token}` },
+    };
+    got.stream
+      .post(`http://hassio/backups/new/upload`, options)
+      .on("uploadProgress", (e) => {
+        const percent = e.percent;
+        if (status.progress !== percent) {
+          status.progress = percent;
+          statusTools.setStatus(status);
+        }
+        if (percent >= 1) {
+          logger.info("Upload done...");
+        }
+      })
+      .on("response", (res) => {
+        if (res.statusCode !== 200) {
+          logger.error(status.message);
+          fs.unlinkSync(path);
+          reject(status.message);
+        } else {
+          logger.info(`...Upload finish ! (status: ${res.statusCode})`);
+          fs.unlinkSync(path);
+          resolve(res);
+        }
+      })
+      .on("error", (err) => {
+        fs.unlinkSync(path);
+        messageManager.error(
+          "Fail to upload backup to Home Assistant",
+          err?.message
+        );
+        logger.error("Fail to upload backup to Home Assistant");
+        logger.error(err);
+        reject(err);
+      });
+  });
+}
+
+function stopAddons(addonSlugs: string[]) {
+  logger.info("Stopping addons...");
+  const promises = [];
+  const option: OptionsOfJSONResponseBody = {
+    headers: { authorization: `Bearer ${token}` },
+    responseType: "json",
+  };
+  for (const addon of addonSlugs) {
+    if (addon !== "") {
+      logger.debug(`... Stopping addon ${addon}`);
+      promises.push(got.post(`http://hassio/addons/${addon}/stop`, option));
+    }
+  }
+  return Promise.allSettled(promises).then((values) => {
+    let errors = false;
+    for (const val of values) {
+      if (val.status == "rejected") {
+        messageManager.error("Fail to stop addon", val.reason);
+        logger.error("Fail to stop addon");
+        logger.error(val.reason);
+        errors = true;
+      }
+    }
+    if (errors) {
+      messageManager.error("Fail to stop addon");
+      logger.error("Fail to stop addon");
+      return Promise.reject();
+    }
+  });
+}
+
+function startAddons(addonSlugs: string[]) {
+  logger.info("Starting addons...");
+  const status = statusTools.getStatus();
+  status.status = "starting";
+  status.progress = -1;
+  statusTools.setStatus(status);
+  const promises = [];
+  const option: OptionsOfJSONResponseBody = {
+    headers: { authorization: `Bearer ${token}` },
+    responseType: "json",
+  };
+  for (const addon of addonSlugs) {
+    if (addon !== "") {
+      logger.debug(`... Starting addon ${addon}`);
+      promises.push(got.post(`http://hassio/addons/${addon}/start`, option));
+    }
+  }
+  return Promise.allSettled(promises).then((values) => {
+    let errors = false;
+    for (const val of values) {
+      if (val.status == "rejected") {
+        messageManager.error("Fail to start addon", val.reason);
+        logger.error("Fail to start addon");
+        logger.error(val.reason);
+        errors = true;
+      }
+    }
+    if (errors) {
+      messageManager.error("Fail to start addon");
+      logger.error("Fail to start addon");
+      return Promise.reject();
+    }
+  });
+}
+
+function publish_state(state: Status) {
+  // let data_error_sensor = {
+  //     state: state.status == "error" ? "on" : "off",
+  //     attributes: {
+  //         friendly_name: "Nexcloud Backup Error",
+  //         device_class: "problem",
+  //         error_code: state.error_code,
+  //         message: state.message,
+  //         icon: state.status == "error" ? "mdi:cloud-alert" : "mdi:cloud-check"
+  //     },
+  // }
+  // let option = {
+  //     headers: { "authorization": `Bearer ${token}` },
+  //     responseType: "json",
+  //     json: data_error_sensor
+  // };
+  // got.post(`http://hassio/core/api/states/binary_sensor.nextcloud_backup_error`, option)
+  // .then((result) => {
+  //     logger.debug('Home assistant sensor updated (error status)');
+  // })
+  // .catch((error) => {
+  //     logger.error(error);
+  // });
+  // let icon = ""
+  // switch(state.status){
+  //     case "error":
+  //         icon = "mdi:cloud-alert";
+  //         break;
+  //     case "download":
+  //     case "download-b":
+  //         icon = "mdi:cloud-download";
+  //         break;
+  //     case "upload":
+  //     case "upload-b":
+  //         icon = "mdi:cloud-upload";
+  //         break;
+  //     case "idle":
+  //         icon = "mdi:cloud-check";
+  //         break;
+  //     default:
+  //         icon = "mdi:cloud-sync";
+  //         break;
+  // }
+  // let data_state_sensor = {
+  //     state: state.status,
+  //     attributes: {
+  //         friendly_name: "Nexcloud Backup Status",
+  //         error_code: state.error_code,
+  //         message: state.message,
+  //         icon: icon,
+  //         last_backup: state.last_backup == null || state.last_backup == "" ? "" : new Date(state.last_backup).toISOString(),
+  //         next_backup: state.next_backup == null || state.next_backup == "" ? "" : new Date(state.next_backup).toISOString()
+  //     },
+  // }
+  // option.json = data_state_sensor
+  // got.post(`http://hassio/core/api/states/sensor.nextcloud_backup_status`, option)
+  // .then((result) => {
+  //     logger.debug('Home assistant sensor updated (status)');
+  // })
+  // .catch((error) => {
+  //     logger.error(error);
+  // });
+}
+
+export {
+  getVersion,
+  getAddonList,
+  getFolderList,
+  getBackups,
+  downloadSnapshot,
+  createNewBackup,
+  uploadSnapshot,
+  stopAddons,
+  startAddons,
+  clean,
+  publish_state,
+};
diff --git a/nextcloud_backup/backend/src/tools/cronTools.ts b/nextcloud_backup/backend/src/tools/cronTools.ts
index 45956fd..c14e331 100644
--- a/nextcloud_backup/backend/src/tools/cronTools.ts
+++ b/nextcloud_backup/backend/src/tools/cronTools.ts
@@ -3,7 +3,7 @@ import * as settingsTools from "./settingsTools.js";
 import * as hassioApiTools from "./hassioApiTools.js";
 import * as statusTools from "./status.js";
 import * as pathTools from "./pathTools.js";
-import webdav from "./webdavTools.js";
+import webdav from "../services/webdavService.js";
 
 import logger from "../config/winston.js";
 
diff --git a/nextcloud_backup/backend/src/tools/hassioApiTools.ts b/nextcloud_backup/backend/src/tools/hassioApiTools.ts
deleted file mode 100644
index 6f3d666..0000000
--- a/nextcloud_backup/backend/src/tools/hassioApiTools.ts
+++ /dev/null
@@ -1,545 +0,0 @@
-import fs from "fs";
-
-import stream from "stream";
-import { promisify } from "util";
-import got, { OptionsOfJSONResponseBody } from "got";
-import FormData from "form-data";
-import * as statusTools from "./status.js";
-import * as settingsTools from "./settingsTools.js";
-
-import logger from "../config/winston.js";
-import { Status } from "../types/status.js";
-import { AddonModel, BackupDetailModel, BackupModel, CoreInfoBody } from "../types/services/ha_os_response.js";
-
-const pipeline = promisify(stream.pipeline);
-
-const token = process.env.SUPERVISOR_TOKEN;
-
-// Default timeout to 90min
-const create_snap_timeout = process.env.CREATE_BACKUP_TIMEOUT
-  ? parseInt(process.env.CREATE_BACKUP_TIMEOUT)
-  : 90 * 60 * 1000;
-
-function getVersion() {
-  return new Promise<string>((resolve, reject) => {
-    const status = statusTools.getStatus();
-    got<CoreInfoBody>("http://hassio/core/info", {
-      headers: { authorization: `Bearer ${token}` },
-      responseType: "json",
-    })
-      .then((result) => {
-        if (status.error_code == 1) {
-          status.status = "idle";
-          status.message = undefined;
-          status.error_code = undefined;
-          statusTools.setStatus(status);
-        }
-        const version = result.body.version;
-        resolve(version);
-      })
-      .catch((error) => {
-        statusTools.setError(`Fail to fetch HA Version (${error.message})`, 1);
-        reject(`Fail to fetch HA Version (${error.message})`);
-      });
-  });
-}
-
-function getAddonList() {
-  return new Promise<AddonModel[]>((resolve, reject) => {
-    const status = statusTools.getStatus();
-    const option: OptionsOfJSONResponseBody = {
-      headers: { authorization: `Bearer ${token}` },
-      responseType: "json",
-    };
-
-    got<{ addons: AddonModel[] }>("http://hassio/addons", option)
-      .then((result) => {
-        if (status.error_code === 1) {
-          status.status = "idle";
-          status.message = undefined;
-          status.error_code = undefined;
-          statusTools.setStatus(status);
-        }
-        const addons = result.body.addons;
-        addons.sort((a, b) => {
-          const textA = a.name.toUpperCase();
-          const textB = b.name.toUpperCase();
-          return textA < textB ? -1 : textA > textB ? 1 : 0;
-        });
-        resolve(addons);
-      })
-      .catch((error) => {
-        statusTools.setError(`Fail to fetch addons list (${error.message})`, 1);
-        reject(`Fail to fetch addons list (${error.message})`);
-      });
-  });
-}
-
-function getAddonToBackup() {
-  return new Promise<string[]>((resolve, reject) => {
-    const excluded_addon = settingsTools.getSettings().exclude_addon;
-    getAddonList()
-      .then((all_addon) => {
-        const slugs = [];
-        for (const addon of all_addon) {
-          if (!excluded_addon.includes(addon.slug)) slugs.push(addon.slug);
-        }
-        logger.debug("Addon to backup:");
-        logger.debug(slugs);
-        resolve(slugs);
-      })
-      .catch(() => reject());
-  });
-}
-
-function getFolderList() {
-  return [
-    {
-      name: "Home Assistant configuration",
-      slug: "homeassistant",
-    },
-    {
-      name: "SSL",
-      slug: "ssl",
-    },
-    {
-      name: "Share",
-      slug: "share",
-    },
-    {
-      name: "Media",
-      slug: "media",
-    },
-    {
-      name: "Local add-ons",
-      slug: "addons/local",
-    },
-  ];
-}
-
-function getFolderToBackup() {
-  const excluded_folder = settingsTools.getSettings().exclude_folder;
-  const all_folder = getFolderList();
-  const slugs = [];
-  for (const folder of all_folder) {
-    if (!excluded_folder.includes(folder.slug)) slugs.push(folder.slug);
-  }
-  logger.debug("Folders to backup:");
-  logger.debug(slugs);
-  return slugs;
-}
-
-function getSnapshots() {
-  return new Promise<BackupModel[]>((resolve, reject) => {
-    const status = statusTools.getStatus();
-    const option: OptionsOfJSONResponseBody = {
-      headers: { authorization: `Bearer ${token}` },
-      responseType: "json",
-    };
-
-    got<{ backups: BackupModel[] }>("http://hassio/backups", option)
-      .then((result) => {
-        if (status.error_code === 1) {
-          status.status = "idle";
-          status.message = undefined;
-          status.error_code = undefined;
-          statusTools.setStatus(status);
-        }
-        const snaps = result.body.backups;
-        resolve(snaps);
-      })
-      .catch((error) => {
-        statusTools.setError(
-          `Fail to fetch Hassio backups (${error.message})`,
-          1
-        );
-        reject(`Fail to fetch Hassio backups (${error.message})`);
-      });
-  });
-}
-
-function downloadSnapshot(id: string) {
-  return new Promise((resolve, reject) => {
-    logger.info(`Downloading snapshot ${id}...`);
-    if (!fs.existsSync("./temp/")) fs.mkdirSync("./temp/");
-    const tmp_file = `./temp/${id}.tar`;
-    const stream = fs.createWriteStream(tmp_file);
-    const status = statusTools.getStatus();
-    checkSnap(id)
-      .then(() => {
-        status.status = "download";
-        status.progress = 0;
-        statusTools.setStatus(status);
-        const option = {
-          headers: { Authorization: `Bearer ${token}` },
-        };
-
-        pipeline(
-          got.stream
-            .get(`http://hassio/backups/${id}/download`, option)
-            .on("downloadProgress", (e) => {
-              const percent = Math.round(e.percent * 100) / 100;
-              if (status.progress !== percent) {
-                status.progress = percent;
-                statusTools.setStatus(status);
-              }
-            }),
-          stream
-        )
-          .then(() => {
-            logger.info("Download success !");
-            status.progress = 1;
-            statusTools.setStatus(status);
-            logger.debug(
-              "Snapshot dl size : " + fs.statSync(tmp_file).size / 1024 / 1024
-            );
-            resolve(undefined);
-          })
-          .catch((error) => {
-            fs.unlinkSync(tmp_file);
-            statusTools.setError(
-              `Fail to download Hassio backup (${error.message})`,
-              7
-            );
-            reject(`Fail to download Hassio backup (${error.message})`);
-          });
-      })
-      .catch(() => {
-        statusTools.setError("Fail to download Hassio backup. Not found ?", 7);
-        reject();
-      });
-  });
-}
-
-function dellSnap(id: string) {
-  return new Promise((resolve, reject) => {
-    checkSnap(id)
-      .then(() => {
-        const option = {
-          headers: { authorization: `Bearer ${token}` },
-        };
-
-        got
-          .delete(`http://hassio/backups/${id}`, option)
-          .then(() => resolve(undefined))
-          .catch((e) => {
-            logger.error(e);
-            reject();
-          });
-      })
-      .catch(() => {
-        reject();
-      });
-  });
-}
-
-function checkSnap(id: string) {
-  return new Promise((resolve, reject) => {
-    const option: OptionsOfJSONResponseBody = {
-      headers: { authorization: `Bearer ${token}` },
-      responseType: "json",
-    };
-
-    got<BackupDetailModel>(`http://hassio/backups/${id}/info`, option)
-      .then((result) => {
-        logger.debug(`Snapshot size: ${result.body.size}`);
-        resolve(undefined);
-      })
-      .catch(() => reject());
-  });
-}
-
-function createNewBackup(name: string) {
-  return new Promise<string>((resolve, reject) => {
-    const status = statusTools.getStatus();
-    status.status = "creating";
-    status.progress = -1;
-    statusTools.setStatus(status);
-    logger.info("Creating new snapshot...");
-    getAddonToBackup()
-      .then((addons) => {
-        const folders = getFolderToBackup();
-
-        const body: NewPartialBackupPayload = {
-          name: name,
-          addons: addons,
-          folders: folders,
-        }
-
-        const password_protected = settingsTools.getSettings().password_protected;
-        logger.debug(`Is password protected ? ${password_protected}`);
-        if (password_protected === "true") {
-          body.password =
-            settingsTools.getSettings().password_protect_value;
-        }
-
-        const option: OptionsOfJSONResponseBody = {
-          headers: { authorization: `Bearer ${token}` },
-          responseType: "json",
-          timeout: {
-            response: create_snap_timeout,
-          },
-          json: body
-        };
-
-        got
-          .post<{ slug: string }>(`http://hassio/backups/new/partial`, option)
-          .then((result) => {
-            logger.info(`Snapshot created with id ${result.body.slug}`);
-            resolve(result.body.slug);
-          })
-          .catch((error) => {
-            statusTools.setError(
-              `Can't create new snapshot (${error.message})`,
-              5
-            );
-            reject(`Can't create new snapshot (${error.message})`);
-          });
-      })
-      .catch(reject);
-  });
-}
-
-function clean() {
-  let limit = settingsTools.getSettings().auto_clean_local_keep;
-  if (limit == null) limit = 5;
-  return new Promise((resolve, reject) => {
-    getSnapshots()
-      .then(async (snaps) => {
-        if (snaps.length < limit) {
-          resolve(undefined);
-          return;
-        }
-        snaps.sort((a, b) => {
-          return a.date < b.date ? 1 : -1;
-        });
-        const toDel = snaps.slice(limit);
-        for (const i of toDel) {
-          await dellSnap(i.slug);
-        }
-        logger.info("Local clean done.");
-        resolve(undefined);
-      })
-      .catch((e) => {
-        statusTools.setError(`Fail to clean backups (${e}) !`, 6);
-        reject(`Fail to clean backups (${e}) !`);
-      });
-  });
-}
-
-function uploadSnapshot(path: string) {
-  return new Promise((resolve, reject) => {
-    const status = statusTools.getStatus();
-    status.status = "upload-b";
-    status.progress = 0;
-    status.message = undefined;
-    status.error_code = undefined;
-    statusTools.setStatus(status);
-    logger.info("Uploading backup...");
-    const stream = fs.createReadStream(path);
-    const form = new FormData();
-    form.append("file", stream);
-
-    const options = {
-      body: form,
-      headers: { authorization: `Bearer ${token}` },
-    };
-
-    got.stream
-      .post(`http://hassio/backups/new/upload`, options)
-      .on("uploadProgress", (e) => {
-        const percent = e.percent;
-        if (status.progress !== percent) {
-          status.progress = percent;
-          statusTools.setStatus(status);
-        }
-        if (percent >= 1) {
-          logger.info("Upload done...");
-        }
-      })
-      .on("response", (res) => {
-        if (res.statusCode !== 200) {
-          status.status = "error";
-          status.error_code = 4;
-          status.message = `Fail to upload backup to home assistant (Status code: ${res.statusCode})!`;
-          statusTools.setStatus(status);
-          logger.error(status.message);
-          fs.unlinkSync(path);
-          reject(status.message);
-        } else {
-          logger.info(`...Upload finish ! (status: ${res.statusCode})`);
-          status.status = "idle";
-          status.progress = -1;
-          status.message = undefined;
-          status.error_code = undefined;
-          statusTools.setStatus(status);
-          fs.unlinkSync(path);
-          resolve(undefined);
-        }
-      })
-      .on("error", (err) => {
-        fs.unlinkSync(path);
-        statusTools.setError(
-          `Fail to upload backup to home assistant (${err}) !`,
-          4
-        );
-        reject(`Fail to upload backup to home assistant (${err}) !`);
-      });
-  });
-}
-
-function stopAddons() {
-  return new Promise((resolve, reject) => {
-    logger.info("Stopping addons...");
-    const status = statusTools.getStatus();
-    status.status = "stopping";
-    status.progress = -1;
-    status.message = undefined;
-    status.error_code = undefined;
-    statusTools.setStatus(status);
-    const promises = [];
-    const option: OptionsOfJSONResponseBody = {
-      headers: { authorization: `Bearer ${token}` },
-      responseType: "json",
-    };
-    const addons_slug = settingsTools.getSettings().auto_stop_addon;
-    for (const addon of addons_slug) {
-      if (addon !== "") {
-        logger.debug(`... Stopping addon ${addon}`);
-        promises.push(got.post(`http://hassio/addons/${addon}/stop`, option));
-      }
-    }
-    Promise.allSettled(promises).then((values) => {
-      let error = null;
-      for (const val of values) if (val.status === "rejected") error = val.reason;
-
-      if (error) {
-        statusTools.setError(`Fail to stop addons(${error}) !`, 8);
-        logger.error(status.message);
-        reject(status.message);
-      } else {
-        logger.info("... Ok");
-        resolve(undefined);
-      }
-    });
-  });
-}
-
-function startAddons() {
-  return new Promise((resolve, reject) => {
-    logger.info("Starting addons...");
-    const status = statusTools.getStatus();
-    status.status = "starting";
-    status.progress = -1;
-    status.message = undefined;
-    status.error_code = undefined;
-    statusTools.setStatus(status);
-    const promises = [];
-    const option: OptionsOfJSONResponseBody = {
-      headers: { authorization: `Bearer ${token}` },
-      responseType: "json",
-    };
-    const addons_slug = settingsTools.getSettings().auto_stop_addon;
-    for (const addon of addons_slug) {
-      if (addon !== "") {
-        logger.debug(`... Starting addon ${addon}`);
-        promises.push(got.post(`http://hassio/addons/${addon}/start`, option));
-      }
-    }
-    Promise.allSettled(promises).then((values) => {
-      let error = null;
-      for (const val of values) if (val.status === "rejected") error = val.reason;
-
-      if (error) {
-        statusTools.setError(`Fail to start addons (${error}) !`, 9);
-        reject(status.message);
-      } else {
-        logger.info("... Ok");
-        status.status = "idle";
-        status.progress = -1;
-        status.message = undefined;
-        status.error_code = undefined;
-        statusTools.setStatus(status);
-        resolve(undefined);
-      }
-    });
-  });
-}
-
-function publish_state(state: Status) {
-  // let data_error_sensor = {
-  //     state: state.status == "error" ? "on" : "off",
-  //     attributes: {
-  //         friendly_name: "Nexcloud Backup Error",
-  //         device_class: "problem",
-  //         error_code: state.error_code,
-  //         message: state.message,
-  //         icon: state.status == "error" ? "mdi:cloud-alert" : "mdi:cloud-check"
-  //     },
-  // }
-  // let option = {
-  //     headers: { "authorization": `Bearer ${token}` },
-  //     responseType: "json",
-  //     json: data_error_sensor
-  // };
-  // got.post(`http://hassio/core/api/states/binary_sensor.nextcloud_backup_error`, option)
-  // .then((result) => {
-  //     logger.debug('Home assistant sensor updated (error status)');
-  // })
-  // .catch((error) => {
-  //     logger.error(error);
-  // });
-  // let icon = ""
-  // switch(state.status){
-  //     case "error":
-  //         icon = "mdi:cloud-alert";
-  //         break;
-  //     case "download":
-  //     case "download-b":
-  //         icon = "mdi:cloud-download";
-  //         break;
-  //     case "upload":
-  //     case "upload-b":
-  //         icon = "mdi:cloud-upload";
-  //         break;
-  //     case "idle":
-  //         icon = "mdi:cloud-check";
-  //         break;
-  //     default:
-  //         icon = "mdi:cloud-sync";
-  //         break;
-  // }
-  // let data_state_sensor = {
-  //     state: state.status,
-  //     attributes: {
-  //         friendly_name: "Nexcloud Backup Status",
-  //         error_code: state.error_code,
-  //         message: state.message,
-  //         icon: icon,
-  //         last_backup: state.last_backup == null || state.last_backup == "" ? "" : new Date(state.last_backup).toISOString(),
-  //         next_backup: state.next_backup == null || state.next_backup == "" ? "" : new Date(state.next_backup).toISOString()
-  //     },
-  // }
-  // option.json = data_state_sensor
-  // got.post(`http://hassio/core/api/states/sensor.nextcloud_backup_status`, option)
-  // .then((result) => {
-  //     logger.debug('Home assistant sensor updated (status)');
-  // })
-  // .catch((error) => {
-  //     logger.error(error);
-  // });
-}
-
-export {
-  getVersion,
-  getAddonList,
-  getFolderList,
-  getSnapshots,
-  downloadSnapshot,
-  createNewBackup,
-  uploadSnapshot,
-  stopAddons,
-  startAddons,
-  clean,
-  publish_state,
-};
diff --git a/nextcloud_backup/backend/src/tools/messageManager.ts b/nextcloud_backup/backend/src/tools/messageManager.ts
new file mode 100644
index 0000000..0c1791d
--- /dev/null
+++ b/nextcloud_backup/backend/src/tools/messageManager.ts
@@ -0,0 +1,40 @@
+import { DateTime } from "luxon";
+import { Message, MessageType } from "../types/message.js";
+
+const maxMessageLength = 255;
+
+class MessageManager {
+  private messages: Message[] = [];
+
+  public addMessage(type: MessageType, message: string, detail?: string) {
+    this.messages.push({
+      message: message,
+      type: type,
+      time: DateTime.now(),
+      detail: detail
+    });
+    if (this.messages.length > maxMessageLength) {
+      this.messages.shift();
+    }
+  }
+
+  public error(message: string, detail?: string) {
+    this.addMessage(MessageType.ERROR, message, detail);
+  }
+
+  public warn(message: string, detail?: string) {
+    this.addMessage(MessageType.WARN, message, detail);
+  }
+
+  public info(message: string, detail?: string) {
+    this.addMessage(MessageType.INFO, message, detail);
+  }
+
+  public success(message: string, detail?: string) {
+    this.addMessage(MessageType.SUCCESS, message, detail);
+  }
+}
+
+
+const messageManager = new MessageManager();
+export default messageManager;
diff --git a/nextcloud_backup/backend/src/types/message.ts b/nextcloud_backup/backend/src/types/message.ts
new file mode 100644
index 0000000..81a7ea4
--- /dev/null
+++ b/nextcloud_backup/backend/src/types/message.ts
@@ -0,0 +1,16 @@
+import { DateTime } from "luxon";
+
+export enum MessageType {
+  ERROR,
+  WARN,
+  INFO,
+  SUCCESS
+}
+
+
+export interface Message {
+  time: DateTime;
+  type: MessageType;
+  message: string;
+  detail?: string;
+}
\ No newline at end of file
diff --git a/nextcloud_backup/backend/src/types/services/ha_os_payload.ts b/nextcloud_backup/backend/src/types/services/ha_os_payload.ts
index 621866a..72b3dfa 100644
--- a/nextcloud_backup/backend/src/types/services/ha_os_payload.ts
+++ b/nextcloud_backup/backend/src/types/services/ha_os_payload.ts
@@ -1,4 +1,4 @@
-interface NewPartialBackupPayload {
+export interface NewPartialBackupPayload {
   name?:	string;
   password?: string;
   homeassistant?: boolean;