import { ajax } from "discourse/lib/ajax";
import showModal from "discourse/lib/show-modal";
import BackupStatus from "admin/models/backup-status";
import Backup from "admin/models/backup";
import PreloadStore from "preload-store";

const LOG_CHANNEL = "/admin/backups/logs";

export default Discourse.Route.extend({
  activate() {
    this.messageBus.subscribe(LOG_CHANNEL, log => {
      if (log.message === "[STARTED]") {
        Discourse.User.currentProp("hideReadOnlyAlert", true);
        this.controllerFor("adminBackups").set(
          "model.isOperationRunning",
          true
        );
        this.controllerFor("adminBackupsLogs")
          .get("logs")
          .clear();
      } else if (log.message === "[FAILED]") {
        this.controllerFor("adminBackups").set(
          "model.isOperationRunning",
          false
        );
        bootbox.alert(
          I18n.t("admin.backups.operations.failed", {
            operation: log.operation
          })
        );
      } else if (log.message === "[SUCCESS]") {
        Discourse.User.currentProp("hideReadOnlyAlert", false);
        this.controllerFor("adminBackups").set(
          "model.isOperationRunning",
          false
        );
        if (log.operation === "restore") {
          // redirect to homepage when the restore is done (session might be lost)
          window.location.pathname = Discourse.getURL("/");
        }
      } else {
        this.controllerFor("adminBackupsLogs")
          .get("logs")
          .pushObject(Em.Object.create(log));
      }
    });
  },

  model() {
    return PreloadStore.getAndRemove("operations_status", function() {
      return ajax("/admin/backups/status.json");
    }).then(status => {
      return BackupStatus.create({
        isOperationRunning: status.is_operation_running,
        canRollback: status.can_rollback,
        allowRestore: status.allow_restore
      });
    });
  },

  deactivate() {
    this.messageBus.unsubscribe(LOG_CHANNEL);
  },

  actions: {
    showStartBackupModal() {
      showModal("admin-start-backup", { admin: true });
      this.controllerFor("modal").set("modalClass", "start-backup-modal");
    },

    startBackup(withUploads) {
      this.transitionTo("admin.backups.logs");
      Backup.start(withUploads);
    },

    destroyBackup(backup) {
      const self = this;
      bootbox.confirm(
        I18n.t("admin.backups.operations.destroy.confirm"),
        I18n.t("no_value"),
        I18n.t("yes_value"),
        function(confirmed) {
          if (confirmed) {
            backup.destroy().then(function() {
              self
                .controllerFor("adminBackupsIndex")
                .get("model")
                .removeObject(backup);
            });
          }
        }
      );
    },

    startRestore(backup) {
      const self = this;
      bootbox.confirm(
        I18n.t("admin.backups.operations.restore.confirm"),
        I18n.t("no_value"),
        I18n.t("yes_value"),
        function(confirmed) {
          if (confirmed) {
            self.transitionTo("admin.backups.logs");
            backup.restore();
          }
        }
      );
    },

    cancelOperation() {
      const self = this;
      bootbox.confirm(
        I18n.t("admin.backups.operations.cancel.confirm"),
        I18n.t("no_value"),
        I18n.t("yes_value"),
        function(confirmed) {
          if (confirmed) {
            Backup.cancel().then(function() {
              self
                .controllerFor("adminBackups")
                .set("model.isOperationRunning", false);
            });
          }
        }
      );
    },

    rollback() {
      bootbox.confirm(
        I18n.t("admin.backups.operations.rollback.confirm"),
        I18n.t("no_value"),
        I18n.t("yes_value"),
        function(confirmed) {
          if (confirmed) {
            Backup.rollback();
          }
        }
      );
    },

    uploadSuccess(filename) {
      bootbox.alert(
        I18n.t("admin.backups.upload.success", { filename: filename })
      );
    },

    uploadError(filename, message) {
      bootbox.alert(
        I18n.t("admin.backups.upload.error", {
          filename: filename,
          message: message
        })
      );
    },

    remoteUploadSuccess() {
      Backup.find().then(backups => {
        this.controllerFor("adminBackupsIndex").set(
          "model",
          backups.map(backup => Backup.create(backup))
        );
      });
    }
  }
});